JP2010129321A - Vehicle lamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the following problem: it is difficult to form in high precision a cut-off line of light distribution pattern in a conventional vehicle lamp. <P>SOLUTION: In the vehicle lamp, a shade-cum-additional reflector 5 has a projection part 15 to form a lower horizontal cut-off line CL1 and a slanted cut-off line CL2 of a low beam light distribution pattern LP. The additional reflecting surface 14 is a reflecting surface having no level difference throughout the whole face. A recessed portion 18 as an optical-path changing part which reflects a portion L4 of the reflecting light L3 cut off to a side other than a projection lens 4 side is provided in the vicinity of the projection part 15 of the additional reflecting surface 14. As a result, the lower horizontal cut-off line CL1 and the slanted cut-off line CL2 of the low beam light distribution pattern LP can be formed in a high precision. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a so-called projector-type vehicular lamp that uses a semiconductor-type light source such as an LED as a light source.

  This type of vehicular lamp is conventionally known (for example, Patent Document 1). Hereinafter, this conventional vehicle lamp will be described. A conventional vehicular lamp includes a projection lens, a light source, a reflector, an additional reflector, and a shielding part. When the light source is turned on, the light from the light source is reflected by the reflector, a part of the reflected light is cut off by the additional reflector, and the reflected light that has not been cut off proceeds to the projection lens side, and is also cut off. The reflected light is reflected by the additional reflector toward the projection lens, and a light distribution pattern having a cut-off line is emitted from the projection lens to the front of the vehicle. In this conventional vehicular lamp, the lower part of the cut-off line of the light distribution pattern can be smoothly dimmed by the shielding portion.

  However, since the conventional vehicular lamp forms the cut-off line of the light distribution pattern at the front end edge of the solid-shaped additional reflector, when the solid-shaped additional reflector is formed, A distortion such as sink may occur in the additional reflector. For this reason, in the conventional vehicle lamp, when distortion such as sink marks occurs in the solid-shaped additional reflector, distortion is also generated in the front edge of the additional reflector, and the cut-off line of the light distribution pattern is formed with high accuracy. It becomes difficult.

JP 2008-77890 A

  The problem to be solved by the present invention is that it may be difficult to form the cut-off line of the light distribution pattern with high accuracy in the conventional vehicle lamp.

  According to the present invention (the invention according to claim 1), the shade and additional reflector is provided with projections for forming a lower horizontal cut-off line and an oblique cut-off line of the light distribution pattern, and the additional reflection surface has a step difference over the entire surface. An optical path changing unit is provided in the vicinity of the projection portion of the additional reflection surface, and an optical path changing unit that reflects a part of the cut off reflected light to the side other than the projection lens side.

  The invention (invention according to claim 2) is characterized in that the shade and additional reflector has a hollow shape.

  Further, according to the present invention (the invention according to claim 3), the optical path changing portion is located on the lower horizontal cut-off line side from the intersection of the lower horizontal cut-off line and the oblique cut-off line of the light distribution pattern among the protrusions of the additional reflection surface It is provided in the corresponding location.

  Furthermore, this invention (invention according to claim 4) is characterized in that the optical path changing portion is a concave portion provided in the vicinity of the protrusion portion of the additional reflection surface.

  Since the vehicular lamp of the present invention (the invention according to claim 1) forms the lower horizontal cut-off line and the oblique cut-off line of the light distribution pattern by the projections provided on the shade / addition reflector, Even if the additional reflector has a solid shape and distortion such as sink marks may occur in the solid-shaped shade / addition reflector, the projection is affected by the distortion of the solid-shaped shade / addition reflector. small. Therefore, in the vehicular lamp according to the present invention (the invention according to claim 1), the shade and additional reflector has a solid shape, and distortion such as sink marks is generated in the solid shape of the shade and additional reflector. Even if there is, the lower horizontal cut-off line and the oblique cut-off line of the light distribution pattern can be formed with high accuracy by the protrusions having a small influence of distortion.

  In addition, the vehicular lamp of the present invention (the invention according to claim 1) has uneven light distribution in the light distribution pattern formed by the reflected light from the additional reflecting surface due to the additional reflecting surface having no step over the whole. Since it can prevent reliably generating, it can prevent reliably that a dark zone generate | occur | produces in a part with a light distribution pattern. As a result, the vehicular lamp according to the present invention (the invention according to claim 1) does not give the driver a visual discomfort due to non-uniform light distribution in the dark zone that occurs in a portion of the light distribution pattern. Can contribute to road safety.

  In addition, the vehicular lamp of the present invention (the invention according to claim 1) is a part of the reflected light cut off by the shade and additional reflector by the optical path changing portion provided in the vicinity of the protrusion of the additional reflecting surface. Is reflected to the side other than the projection lens side, so that part of the light below the lower horizontal cutoff line and the oblique cutoff line of the light distribution pattern can be extracted. As a result, the vehicular lamp of the present invention (the invention according to claim 1) can smoothly dim the lower horizontal cut-off line and the lower part of the oblique cut-off line of the light distribution pattern. The light is not stray and does not cause discomfort or discomfort to the driver, other drivers or pedestrians.

  Further, in the vehicular lamp according to the present invention (the invention according to claim 2), since the shade and additional reflector has a hollow shape, the occurrence of distortion such as sink marks is suppressed as compared with a solid shade and additional reflector. can do. For this reason, the vehicular lamp according to the present invention (the invention according to claim 2) can further reduce the influence of distortion on the protrusion provided on the hollow shade and additional reflector. Therefore, the lower horizontal cut-off line and the oblique cut-off line can be formed with higher accuracy.

  Furthermore, in the vehicular lamp according to the present invention (the invention according to claim 3), the light path changing portion has a lower horizontal line from the intersection of the lower horizontal cut-off line and the oblique cut off line of the light distribution pattern among the protrusions of the additional reflection surface. Because it is provided at the location corresponding to the cut-off line side, a part of the light distribution on the lower side of the on-line lane-side lower horizontal cut-off line is smoothly dimmed while the distance visibility on the lane is maintained. can do.

  Furthermore, in the vehicular lamp according to the present invention (the invention according to claim 4), since the optical path changing portion is a concave portion provided in the vicinity of the protruding portion of the additional reflecting surface, the number of parts is increased and the manufacturing cost is increased. In addition, it is possible to reliably reflect a part of the reflected light cut off by the shade and additional reflector to the side other than the projection lens side.

  Embodiments of a vehicular lamp according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments. In the drawing, reference sign “VU-VD” indicates vertical lines on the upper and lower sides of the screen. Reference sign “HL-HR” indicates horizontal lines on the left and right of the screen. The symbol “Z-Z” indicates the optical axis of the lamp unit (the optical axis of the convergent reflection surface, the optical axis of the projection lens).

  Hereinafter, the configuration of the vehicular lamp in this embodiment will be described. In this example, for example, an automotive headlamp will be described. In FIG. 3, the code | symbol 1 is a vehicle lamp in this Example. As shown in FIG. 3, the vehicle lamp 1 is a so-called projector type and has a unit structure. The vehicular lamp 1 includes a reflector 2, a semiconductor light source 3, a projection lens (convex lens, condensing lens) 4, a shade / addition reflector 5, a heat sink member 6, and an unillustrated automotive headlamp lamp. And a housing and a lamp lens (for example, a transparent outer lens).

  The reflector 2, the semiconductor-type light source 3, the projection lens 4, the shade / addition reflector 5, and the heat sink member 6 constitute a lamp unit. One or a plurality of the lamp units are arranged, for example, via an optical axis adjusting mechanism in a lamp chamber defined by a lamp housing and a lamp lens of an automotive headlamp.

  The reflector 2 is composed of a light-impermeable resin member or the like, and is also used as a holding member such as a casing, a housing, or a holder. The reflector 2, the shade / addition reflector 5, and the heat sink member 6 are fixed to each other.

  The front portion of the reflector 2 constitutes a cylindrical holder portion 7. The projection lens 4 is fixed to the holder portion 7. On the other hand, the portion from the center side to the rear side of the reflector 2 is composed of a closed portion in the upper portion and an opening portion in the lower portion substantially horizontally along the optical axis ZZ. On the concave inner surface of the dome-shaped blocking portion of the reflector 2, an aluminum vapor deposition or silver coating is applied, and a converging reflection surface 8 is provided.

  The convergent reflecting surface 8 is a reflecting surface based on an ellipse, for example, a reflecting surface such as a rotating ellipsoid or a free-form surface (NURBS surface) based on an ellipse (the vertical cross section of FIGS. 3, 4, and 5). A reflecting surface having an elliptical surface and a horizontal cross section (not shown) forming a paraboloid or a deformed paraboloid). For this reason, the convergent reflecting surface 8 has a first focal point F1 and a second focal point (focal line on the horizontal section, that is, both ends are located on the projection lens 4 side when viewed from above (plane), and the center is the above-mentioned A curved focal line located on the semiconductor-type light source 3 side) F2, and an optical axis ZZ.

  As the semiconductor-type light source 3, for example, a self-luminous semiconductor-type light source (LED in this embodiment) such as LED or EL (organic EL) is used. The semiconductor-type light source 3 includes a substrate 9 of a thermally conductive insulating substrate (for example, ceramic) and a light emitting body of a LED chip having a small rectangular shape (square shape) provided on one surface (upper surface) of the substrate 9. And a substantially hemispherical (dome-shaped) light transmitting member (lens) 10 that covers the light-emitting body. The substrate 9 of the semiconductor light source 3 is fixed to one surface (upper surface) of the heat sink member 6. The light emitter (light emitting portion) of the semiconductor-type light source 3 is located at or near the first focal point F1 of the convergent reflective surface 8.

  The projection lens 4 is an aspherical convex lens. The front side (external side) of the projection lens 4 has a convex aspherical surface with a large curvature (small curvature radius), while the rear side (the semiconductor-type light source 3 side) of the projection lens 4 has a small curvature. Convex aspherical surface (large curvature radius). By using such a projection lens 4, the focal length of the projection lens 4 is reduced, and accordingly, the dimension of the projection lens 4 of the vehicle lamp 1 in this embodiment in the direction of the optical axis ZZ is increased. It becomes compact. The rear side of the projection lens 4 may be a flat aspheric surface (plane).

  The projection lens 4 has a front focus (focus on the semiconductor light source 3 side) and a rear focus (external focus), and an optical axis ZZ connecting the front focus and the rear focus. The optical axis ZZ of the convergent reflecting surface 8 and the optical axis ZZ of the projection lens 4 are substantially coincident. The front focal point of the projection lens 4 is a lens focal point (meridional image plane that is a focal plane on the object space side) FL. The lens focal point FL of the projection lens 4 is located at or near the second focal point F2 of the convergent reflective surface 8. The light L1 emitted from the semiconductor-type light source 3 does not have high heat, so that a resin lens can be used as the projection lens 4. The projection lens 4 uses acrylic in this example. The projection lens 4 irradiates (projects) a light distribution pattern having cutoff lines CL1, CL2, CL3, for example, a passing light distribution pattern (low beam light distribution pattern) LP in front of the vehicle.

  The shade / addition reflector 5 is composed of a light-impermeable resin member or the like, similar to the reflector 2. The shade and additional reflector 5 is disposed between the projection lens 4 and the semiconductor light source 3. As shown in FIGS. 1 to 5, the shade / addition reflector 5 has a hollow shape, a top plate portion 11 of a horizontal plate, left and right plate portions 12 of a vertical plate, a front plate portion 13 of an arc plate, Consists of. A corner (edge, edge) between the upper surface plate portion 11 and the front surface plate portion 13 of the shade / addition reflector 5 is the second focal point F2 of the convergent reflective surface 8 or its vicinity, or the projection. It is located at or near the lens focal point FL of the lens 4.

  The shade / addition reflector 5 cuts off a part L3 of the reflected light L2 emitted from the semiconductor-type light source 3 and reflected by the convergent reflecting surface 8 to cut off the passing light distribution pattern LP. Shades forming CL1, CL2, and CL3, that is, the upper surface plate portion 11 is provided.

  On the upper surface of the upper surface plate portion 11 of the shade / addition reflector 5, aluminum deposition or silver coating is applied, and an additional reflection surface 14 for reflecting the cut off reflected light L3 toward the projection lens 4 is provided. It has been. The additional reflection surface 14 forms a downwardly inclined surface having no step throughout. That is, the additional reflection surface 14 is inclined with respect to the horizontal line (about 1 ° to 3 °) substantially along the optical axis ZZ.

  A protrusion 15 is integrally provided on the left side of the corner between the top plate 11 and the front plate 13 of the shade and additional reflector 5. The protrusion 15 includes a horizontal portion 16 and an inclined portion 17.

  The horizontal portion 16 of the protrusion 15 forms a lower horizontal cut-off line CL1 of the passing light distribution pattern LP. The inclined portion 17 of the projection 15 forms an oblique cutoff line CL2 of the passing light distribution pattern LP. The right portion of the corners of the upper surface plate portion 11 and the front plate portion 13 of the shade / addition reflector 5 forms the upper horizontal cut-off line CL3 of the light distribution pattern LP for passing.

  A concave portion 18 as an optical path changing portion is provided in the vicinity of the protruding portion 15 of the additional reflecting surface 14. The concave portion 18 reflects a part L4 of the cut off reflected light L3 to the side other than the projection lens side. The concave portion 18 includes a lower horizontal cut-off line CL1 from an intersection (elbow point E) of the lower horizontal cut-off line CL1 and the oblique cut-off line CL2 of the passing light distribution pattern LP in the protrusion 15 of the additional reflection surface 14. It is provided at a location corresponding to the side. That is, as shown in FIG. 2, the concave portion 18 includes a short side (from the boundary between the horizontal portion 16 and the inclined portion 17 to the horizontal portion 16 side) of the protrusion 15 of the additional reflection surface 14 ( The horizontal side, in this example, about 1 to 10 mm) and the long side (vertical side, in this example, about 1 to 15 mm) from the horizontal portion 16 to the rear side (semiconductor type light source 3) are provided in a rectangular range. It has been.

  The heat sink member 6 is made of a material having high thermal conductivity such as resin or metallic die casting. The heat sink member 6 has a flat shape at the top and a fin shape from the middle to the bottom.

  The vehicular lamp 1 in this embodiment is configured as described above, and the operation thereof will be described below.

  First, the light emitter of the semiconductor light source 3 of the vehicular lamp 1 is turned on. Then, the light L1 is emitted from the light emitter of the semiconductor-type light source 3. The light L1 is reflected by the convergent reflective surface 8, and the reflected light L2 converges (concentrates) on the second focal point F2 of the convergent reflective surface 8. A portion L2 of the reflected light L2 that converges (concentrates) on the second focal point F2 is cut off by the shade of the upper surface plate portion 11 of the shade / addition reflector 5 and the horizontal portion of the projection 15 of the shade / addition reflector 5 The cut-off lines CL1, CL2, and CL3 of the light distribution pattern LP for passing are formed by 16 and the inclined portion 17 and the corner portions of the top plate portion 11 and the front plate portion 13. Most of the reflected light L3 cut off by the shade / addition reflector 5 is an additional reflection surface 14 on the upper surface of the upper surface plate portion 11 that forms an inclined surface having no step over the entire shade / addition reflector 5. Is reflected by the projection lens 4 side. On the other hand, the reflected light L2 that has not been cut off by the shade of the upper surface plate portion 11 of the shade and additional reflector 5 proceeds directly to the projection lens 4 side.

  Then, the light L2 traveling to the projection lens 4 side and the light L3 reflected by the projection lens 4 side are transmitted through the projection lens 4, and the image of the light at the lens focal point FL of the projection lens 4 is inverted vertically and horizontally. A light image, that is, a passing light distribution pattern LP having cut-off lines CL1, CL2, and CL3 is projected forward of the automobile (vehicle) to illuminate the road surface and the like.

  Further, a part L4 of the reflected light L3 cut off by the shade and additional reflector 5 is reflected by the concave portion 18 near the projection 15 of the additional reflective surface 14 to the side other than the projection lens 4 side. That is, a part L4 of the reflected light L3 cut off by the shade / addition reflector 5 is reflected to the front side by the bottom surface of the concave portion 18 and projected from the wall surface of the front side of the concave portion 18 as shown in FIG. 4 is reflected to the rear side opposite to 4. As a result, a part L4 of the reflected light L3 cut off by the shade and additional reflector 5 passes through and is not projected from the projection lens 4. As a result, as shown in FIG. 6, the intersection of the lower horizontal cutoff line CL1 and the oblique cutoff line CL2 of the passing light distribution pattern LP formed by most of the reflected light L3 cut off by the shade and additional reflector 5 A light escape portion 19 is formed at a location corresponding to the lower horizontal cutoff line CL1 side from (elbow point E). On the other hand, as shown in FIG. 7, the passing light distribution pattern LP formed by the reflected light L <b> 2 not cut off by the shade / addition reflector 5 is a complete passing light distribution pattern having no light omission portion. By synthesizing the passing light distribution pattern LP shown in FIG. 6 and the passing light distribution pattern LP shown in FIG. 7, as shown in FIG. 8, the intersection of the lower horizontal cutoff line CL1 and the oblique cutoff line CL2 ( A light distribution pattern LP for passing is formed in which a smooth light-reducing portion 20 (a portion indicated by an oblique broken line in FIG. 8) is formed at a position corresponding to the lower horizontal cutoff line CL1 from the elbow point E). The

  The vehicular lamp 1 in this embodiment is configured and operated as described above, and the effects thereof will be described below.

  In this embodiment, the vehicular lamp 1 has a horizontal horizontal line 16 and a horizontal line 16 of the projection 15 provided on the shade and additional reflector 5 and a horizontal horizontal line offline CL1 and a diagonal horizontal line CL2 that pass through the light distribution pattern LP for passing. Even if the shade / addition reflector has a solid shape and distortion such as sink marks may occur in the solid shape shade / addition reflector, the horizontal portion 16 of the projection 15 and The inclined portion 17 is less affected by the distortion of the solid-shaped shade and additional reflector. For this reason, the vehicular lamp 1 in this embodiment has a solid shade and additional reflector, and even if distortion such as sink marks may occur in the solid shade and additional reflector. Therefore, the lower horizontal cut-off line CL1 and the oblique cut-off line CL2 can be formed with high accuracy at the horizontal portion 16 and the inclined portion 17 of the protrusion 15 having a small influence.

  In addition, the vehicular lamp 1 in this embodiment is formed by the reflected light L3 from the additional reflection surface 14 by the additional reflection surface 14 on the upper surface of the upper plate 11 having no step over the entire shade and additional reflector 5. Since it is possible to reliably prevent uneven light distribution in the passing light distribution pattern LP, it is possible to reliably prevent a dark zone from occurring in a portion of the passing light distribution pattern LP. . As a result, the vehicle lamp 1 in this embodiment does not give the driver a visual discomfort due to the non-uniformity of the light distribution in the dark zone that occurs in a certain portion of the passing light distribution pattern LP. Can contribute.

  In addition, the vehicular lamp 1 according to this embodiment has the reflected light L3 cut off by the shade and additional reflector 5 by the concave portion 18 as an optical path changing portion provided in the vicinity of the projection 15 of the additional reflecting surface 14. Since part L4 is reflected to the side other than the projection lens 4 side, one corresponding to the lower horizontal cut-off line CL1 side from the intersection (elbow point E) of the lower horizontal cut-off line CL1 and the oblique cut-off line CL2 of the passing light distribution pattern LP. The light of the part can be extracted. Thereby, the vehicle lamp 1 in this embodiment is a part corresponding to the lower horizontal cutoff line CL1 side from the intersection (elbow point E) of the lower horizontal cutoff line CL1 and the oblique cutoff line CL2 of the passing light distribution pattern LP. The (dimming unit 20) can be smoothly dimmed, and the extracted light does not become stray light and does not cause discomfort or discomfort to the driver, other drivers or pedestrians.

  Further, in the vehicular lamp 1 according to this embodiment, since the shade and additional reflector 5 has a hollow shape, the occurrence of distortion such as sink marks can be suppressed as compared with a solid shade and additional reflector. For this reason, the vehicular lamp 1 according to this embodiment can further reduce the influence of distortion on the horizontal portion 16 and the inclined portion 17 of the protrusion 15 provided in the hollow shade / addition reflector 5. Therefore, the lower horizontal cut-off line CL1 and the oblique cut-off line CL2 can be formed with higher accuracy at the horizontal portion 16 and the inclined portion 17 of the projection portion 15 and the light distribution pattern LP for passing. Moreover, in the vehicular lamp 1 according to this embodiment, the shade and additional reflector 5 has a hollow shape, so that the influence of distortion on the corners of the upper surface plate portion 11 and the front plate portion 13 of the shade and additional reflector 5 is small. As a result, the upper horizontal cut-off line CL3 of the light distribution pattern LP for passing can be formed with high accuracy at the corners of the upper surface plate portion 11 and the front surface plate portion 13 of the shade and additional reflector 5.

  Further, in the vehicle lamp 1 according to this embodiment, the concave portion 18 as the optical path changing portion has a lower horizontal cut-off line CL1 and an oblique cut-off line CL2 among the projections 15 of the additional reflection surface 14 and the light distribution pattern LP for passing. Is located at the position corresponding to the lower horizontal cut-off line CL1 side from the intersection (elbow point E), so that the far visibility on the traveling lane side is maintained and the lower horizontal cut-off line CL1 on the opposite lane side is below A portion of the light distribution on the side (the light reducing unit 20) can be smoothly dimmed.

  Furthermore, in the vehicular lamp 1 in this embodiment, since the optical path changing part is the concave part 18 provided in the vicinity of the protrusion part 15 of the additional reflection surface 14, the number of parts increases and the manufacturing cost increases. In addition, a part L4 of the reflected light L3 cut off by the shade and additional reflector 5 can be reliably reflected to the side other than the projection lens 4 side. That is, a part L4 of the reflected light L3 cut off by the shade / addition reflector 5 is reflected to the front side by the bottom surface of the concave portion 18 and projected from the wall surface of the front side of the concave portion 18 as shown in FIG. 4 is reflected to the rear side opposite to 4.

  In the above-described embodiment, an automotive headlamp will be described as a vehicular lamp that irradiates a passing light distribution pattern LP having cut-off lines CL1, CL2, and CL3. However, in the present invention, a light distribution pattern other than the passing light distribution pattern may be used as long as the light distribution pattern has a cut-off line.

  Moreover, in the said Example, the shade and addition reflector 5 makes | forms a hollow shape. However, in the present invention, it may be a solid-shaped shade and additional reflector.

It is a perspective view of the shade and additional reflector which shows the Example of the vehicle lamp concerning this invention. Similarly, it is a top view which shows a shade and additional reflector. Similarly, it is a longitudinal cross-sectional view corresponding to the III-III line cross section in FIG. Similarly, it is the longitudinal cross-sectional view corresponding to the IV-IV line cross section in FIG. Similarly, it is the longitudinal cross-sectional view corresponding to the VV sectional view in FIG. Similarly, it is explanatory drawing of the light distribution pattern for passing on the screen which shows the light distribution pattern for passing formed with the reflected light from an additional reflective surface. Similarly, it is explanatory drawing of the light distribution pattern for passing on the screen which shows the light distribution pattern for passing formed with the reflected light from the convergence type reflective surface which was not cut off by the shade and additional reflector. Similarly, it is explanatory drawing of the light distribution pattern for passing on the screen which shows the light distribution pattern for passing which synthesize | combined the light distribution pattern for passing of FIG. 6 and the light distribution pattern for passing of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle lamp 2 Reflector 3 Semiconductor type light source 4 Projection lens 5 Shade and additional reflector 6 Heat sink member 7 Holder part 8 Convergence type reflective surface 9 Substrate 10 Light transmission member 11 Upper surface board part 12 Left and right side board part 13 Front board part 14 Additional reflection Surface 15 Protruding part 16 Horizontal part 17 Inclined part 18 Recessed part (optical path changing part)
DESCRIPTION OF SYMBOLS 19 Light omission part 20 Light reduction part HL-HR Left and right horizontal line VU-VD Upper and lower vertical line F1 The first focus of a converging reflection surface F2 The second focus of a converging reflection surface FL Lens focus of a projection lens ZZ Lamp unit Optical axis of CL1, CL2, CL3 Cut-off line E Elbow point LP Light distribution pattern for passing L1 Light emitted from semiconductor light source L2 Light reflected by convergent reflective surface L3 Light reflected by additional reflective surface L4 In concave portion Light reflected outside the projection lens side

Claims (4)

In a vehicle lamp that uses a semiconductor-type light source as a light source,
A reflector having a convergent reflecting surface based on an ellipse;
The semiconductor-type light source disposed so that the light-emitting portion is positioned at or near the first focal point of the convergent reflective surface;
A projection lens whose lens focal point is located at or near the second focal point of the convergent reflective surface;
A light distribution pattern cut-off line is arranged between the projection lens and the semiconductor-type light source, and cuts off part of the reflected light emitted from the semiconductor-type light source and reflected by the convergent reflection surface. A shade and additional reflector having an additional reflection surface that reflects the cut-off reflected light to the projection lens side,
With
The shade and additional reflector is provided with a protrusion that forms a lower horizontal cutoff line and an oblique cutoff line of the light distribution pattern,
The additional reflective surface is a reflective surface having no step over the entire surface,
In the vicinity of the protrusion on the additional reflection surface, an optical path changing unit is provided for reflecting a part of the cut-off reflected light to the side other than the projection lens side,
A vehicular lamp characterized by the above. The shade and additional reflector has a hollow shape,
The vehicular lamp according to claim 1. The optical path changing unit is provided at a position corresponding to the lower horizontal cut-off line side from the intersection of the lower horizontal cut-off line and the oblique cut-off line of the light distribution pattern among the protrusions of the additional reflection surface.
The vehicular lamp according to claim 1 or 2. The optical path changing portion is a recess provided in the vicinity of the protrusion on the additional reflection surface.
The vehicular lamp according to any one of claims 1 to 3.

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