JP5966674B2 - Vehicle lighting - Google Patents

Description

  The present invention relates to a vehicular lamp including a lamp unit including a semiconductor light source and a reflector, and relates to a vehicular lamp including a lamp unit such as a cornering lamp.

  Conventionally, this kind of vehicle lamp is known (for example, Patent Document 1 and Patent Document 2). Hereinafter, a conventional vehicle lamp will be described. The conventional vehicular lamp of Patent Document 1 includes two side illumination lamp units each including a semiconductor light emitting element and a reflector having a reflecting surface, and forms a horizontally long light distribution pattern. . The conventional vehicle lamp of Patent Document 2 includes a light emitting element and a reflector having a first reflection region, a second reflection region, and an upward reflection region, and forms a horizontally long light distribution pattern. Is.

JP-A-2005-141919 JP 2009-48898 A

  In such a vehicular lamp, it is important to reliably form a horizontally long light distribution pattern.

  An object of the present invention is to provide a vehicular lamp that can reliably form a horizontally long light distribution pattern.

  The present invention (invention according to claim 1) includes a lamp housing and a lamp lens that define a lamp chamber, and a lamp unit disposed in the lamp chamber, the lamp unit including a semiconductor-type light source, a reflector, The reflector has at least a first reflection surface and a second reflection surface, and the first reflection surface is disposed outside the vehicle with respect to the second reflection surface, and is a semiconductor. A reflection surface that reflects light from the mold light source mainly to the inside of the vehicle with respect to the reflection direction of the second reflection surface, and the second reflection surface is disposed inside the vehicle with respect to the first reflection surface. The reflective surface reflects light from the semiconductor-type light source mainly to the outside of the vehicle with respect to the reflection direction of the first reflective surface.

  In the present invention (the invention according to claim 2), the reflector has a third reflecting surface disposed between the first reflecting surface and the second reflecting surface, and the third reflecting surface is formed from a semiconductor-type light source. It is a reflective surface which mainly reflects the light of 1 in the reflective direction of a 1st reflective surface, and the reflective direction of a 2nd reflective surface, It is characterized by the above-mentioned.

  In this invention (the invention according to claim 3), the reflector has a third reflecting surface and a fourth reflecting surface arranged between the first reflecting surface and the second reflecting surface, and the third reflecting surface. Is a reflection surface that mainly reflects light from the semiconductor-type light source in the reflection direction of the first reflection surface and the reflection direction of the second reflection surface, and the fourth reflection surface first reflects the light from the semiconductor-type light source. It is a reflecting surface that mainly reflects upward with respect to the reflecting direction of the surface, the reflecting direction of the second reflecting surface, and the reflecting direction of the third reflecting surface.

  According to the present invention (the invention according to claim 4), the lamp lens is inclined from the inside to the outside of the vehicle, and the lamp unit is arranged so that the light source axis of the lamp unit is substantially perpendicular to the lamp lens. A plurality of vehicles are arranged in the room from the inside to the outside of the vehicle.

  The vehicular lamp according to the present invention diffuses and reflects light from a semiconductor-type light source mainly to the inner side of the vehicle by the first reflecting surface disposed on the outer side of the vehicle, and is disposed on the inner side of the vehicle. The second reflecting surface diffuses and reflects light from the semiconductor-type light source mainly to the outside of the vehicle. As a result, a long light distribution pattern in the lateral direction (left-right direction) can be reliably formed.

  In particular, in the vehicular lamp according to the present invention, light emitted from the semiconductor-type light source to the outside of the vehicle with respect to the light source axis is reflected to the inside of the vehicle by the first reflecting surface disposed on the outside of the vehicle, Light radiated from the semiconductor-type light source to the inside of the vehicle with respect to the light source axis is reflected to the outside of the vehicle by the second reflecting surface arranged inside the vehicle. A pattern is formed. For this reason, the lateral direction of the lamp unit can be reduced in size compared to the conventional lamps of Patent Documents 1 and 2, which form a long light distribution pattern in the lateral direction by open reflection. Can do. Further, when a plurality of lamp units are arranged in the horizontal direction, the reflected light from the lamp unit is not blocked by the adjacent lamp unit.

FIG. 1 shows an embodiment of a vehicular lamp according to the present invention, and is a plan view showing a state where the vehicular lamp is mounted on both the left and right sides of the front portion of the vehicle. FIG. 2 is a front view showing a state in which the lamp lens is removed. FIG. 3 is a plan view (a view taken along arrows III-III in FIG. 2) showing four cornering lamps. FIG. 4 is a perspective view showing a cornering lamp. FIG. 5 is a longitudinal sectional view (sectional view taken along line VV in FIG. 4) showing a cornering lamp. FIG. 6 is an explanatory diagram showing a pedestrian's visual state at the intersection. FIG. 7 is an explanatory view showing a light distribution pattern formed by each reflecting surface of the cornering lamp. FIG. 8 is an explanatory view showing a light distribution pattern formed by a cornering lamp.

  DESCRIPTION OF EMBODIMENTS Embodiments (examples) of a vehicular lamp according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In this specification, front, rear, upper, lower, left, and right are front, rear, upper, lower, left, and right when the vehicle lamp according to the present invention is mounted on a vehicle.

  1 to 3, the symbol “F” indicates the front side of the vehicle C (the vehicle forward direction side). The symbol “B” indicates the rear side of the vehicle C. The symbol “U” indicates the upper side when the front side is viewed from the driver side. The symbol “D” indicates the lower side when the front side is viewed from the driver side. The symbol “L” indicates the left side when the front side is viewed from the driver side. The symbol “R” indicates the right side when the front side is viewed from the driver side. Further, in FIG. 1, “OO” indicates a vehicle axis (a central axis in the front-rear direction of the vehicle C).

  Further, in FIGS. 7 and 8, reference sign “VU-VD” indicates vertical lines on the top and bottom of the screen. The left side L of the screen means the left side of the vertical line VU-VD. The right side R of the screen means the right side of the vertical line VU-VD. Reference sign “HL-HR” indicates horizontal lines on the left and right of the screen. The upper side U of the screen means the upper side from the left and right horizontal lines HL-HR. The lower side D of the screen means the lower side of the left and right horizontal lines HL-HR.

  FIG. 7 and FIG. 8 are explanatory diagrams of an isoluminous curve showing the light distribution pattern on the screen drawn by computer simulation in a simplified manner, where the central isoluminous curve is a high luminous intensity zone, The curve is the light intensity band that decreases as you go out.

(Description of Configuration of Embodiment)
Hereinafter, the configuration of the vehicle lamps 1L and 1R in this embodiment will be described. The vehicle lamps 1L and 1R of this embodiment are, for example, front combination lamps (head lamps) provided with cornering lamps. The vehicle lamps 1L and 1R are mounted on the left and right sides L and R of the front portion of the vehicle C as shown in FIG. The front portion of the vehicle C inclines (slants) from the front side F to the rear side B of the vehicle C from the inner side to the outer side in the width direction (lateral direction, left and right direction) of the vehicle C in a plan view. (See FIGS. 1 and 3).

  Hereinafter, the left vehicle lamp 1L mounted on the left side L of the vehicle C will be described. The right vehicle lamp 1R mounted on the right R of the vehicle C has the same configuration as that of the left vehicle lamp 1L, and the other components are substantially the same, and the description thereof will be omitted. Here, in the left vehicle lamp 1L mounted on the left side L of the vehicle C, the inside of the vehicle C is the right side R and the outside of the vehicle C is the left side L. On the other hand, in the right vehicle lamp 1R mounted on the right side R of the vehicle C, the inside of the vehicle C is the left side L and the outside of the vehicle C is the right side R.

(Description of vehicle lamp 1L)
As shown in FIGS. 2 and 3, the vehicular lamp 1 </ b> L includes a lamp housing 11 and a lamp lens 12 that define a lamp chamber 10, and lamp unit groups 20, 21, 22, which are disposed in the lamp chamber 10. 23, 3 (3A, 3B, 3C, 3D).

  The lamp unit group includes a lamp unit of a low beam lamp 20, a lamp unit of a high beam lamp 21, a lamp unit of a clearance lamp 22, a lamp unit of a turn signal lamp 23, and four cornering lamps 3 (3A, 3B, 3C, 3D) lamp units.

  The lamp lens 12 is made of a transparent outer cover or an outer lens, for example. As shown in FIG. 3, the lamp lens 12 extends from the front side F of the vehicle C in the width direction of the vehicle C from the inner side to the outer side in a plan view, almost like the front part of the vehicle C. It is inclined (slant) to the rear side B.

  Each of the four cornering lamps 3 (3A, 3B, 3C, 3D) includes a semiconductor light source 4 and a reflector 5.

(Description of the semiconductor-type light source 4)
As shown in FIGS. 3 to 5, the semiconductor light source 4 is a self-luminous semiconductor light source such as an LED or an EL (organic EL) in this example. The semiconductor-type light source 4 includes a light emitting unit 40 and a substrate 41. The light emitting unit 40 is mounted substantially at the center of the lower surface of the substrate 41. The substrate 41 is fixed to the reflector 5 with a screw or the like (not shown).

  The light emitting unit 40 includes a package (LED package) in which a light emitting chip (LED chip) is sealed with a sealing resin member. The light emitting chip of the light emitting unit 40 has a planar rectangular shape (planar rectangular shape). That is, a plurality of, for example, four square light emitting chips are arranged. One rectangular light emitting chip or one square light emitting chip may be used. The lower D surface (lower surface) of the light emitting chip of the light emitting unit 40 forms a light emitting surface. The light emitting surface of the light emitting unit 40 faces the lower side D.

  For example, as shown in FIG. 6, the light emitting unit 40 of the semiconductor-type light source 4 may be manually operated by a driver (driver) when the vehicle C makes a left turn LC or a right turn RC at an intersection, or Lights by automatic operation of an automatic lighting device (not shown) mounted on the vehicle C. When the left turn LC or the right turn RC is completed, the light turns off by manual operation of the driver or automatic operation of the automatic lighting device mounted on the vehicle C.

(Description of reflector 5)
As shown in FIGS. 3 to 5, the reflector 5 includes a first reflecting surface 51, a second reflecting surface 52, a third reflecting surface 53, and a fourth reflecting surface 54. Note that a fin-shaped heat sink 50 may be provided on the reflector 5. The first reflecting surface 51, the second reflecting surface 52, the third reflecting surface 53, and the fourth reflecting surface 54 are each a reflecting surface made of a parabolic free-form surface. As a result, the first reflecting surface 51, the second reflecting surface 52, the third reflecting surface 53, and the fourth reflecting surface 54 have a reference focal point (not shown) and a reference optical axis (not shown), respectively. Have.

  The first reflecting surface 51 is disposed on the outer side (left side L) of the vehicle C with respect to the second reflecting surface 52. The first reflection surface 51 mainly uses the inside of the vehicle C as the first reflected light L1 as the first reflected light L1 with respect to the reflection direction of the second reflected light L2 from the second reflecting surface 52 ( On the right side R) is a reflecting surface that diffusely reflects left and right.

  The second reflecting surface 52 is disposed on the inner side (right side R) of the vehicle C with respect to the first reflecting surface 51. The second reflecting surface 52 mainly converts the light from the semiconductor-type light source 4 into the second reflected light L2 with respect to the reflection direction of the first reflected light L1 from the first reflecting surface 51. This is a reflecting surface that diffusely reflects left and right on the outside (left L).

  As shown in FIG. 3, the tip portion of the first reflecting surface 51 is retracted to the opposite side of the lamp lens 12 as compared to the tip portion of the second reflecting surface 52. On the other hand, the tip of the second reflecting surface 52 is advanced toward the lamp lens 12 as compared with the tip of the first reflecting surface 51. Thus, the second reflected light L2 from the second reflecting surface 52 is blocked by the first reflecting surface 51 disposed on the outside (left side L) of the vehicle C with respect to the second reflecting surface 52. Without being diffused, it is reliably diffused and reflected left and right on the outside (left side L) of the vehicle C. Moreover, the area of the second reflecting surface 52 is larger than the area of the first reflecting surface 51, and accordingly, much of the light from the semiconductor-type light source 4 is distributed to the outside (left side L) of the vehicle C. Can do.

  The third reflecting surface 53 is disposed between the first reflecting surface 51 and the second reflecting surface 52. The third reflection surface 53 uses the light from the semiconductor-type light source 4 as the third reflection light L3, the reflection direction of the first reflection light L1 from the first reflection surface 51, and the light from the second reflection surface 52. This is a reflecting surface that diffuses and reflects mainly vertically and horizontally in the direction of reflection of the second reflected light L2.

  The fourth reflecting surface 54 is disposed between the first reflecting surface 51 and the second reflecting surface 52 and on the upper side U of the third reflecting surface 53. The fourth reflection surface 54 uses the light from the semiconductor-type light source 4 as the fourth reflection light L4, the reflection direction of the first reflection light L1 from the first reflection surface 51, and the light from the second reflection surface 52. This is a reflection surface that diffuses and reflects the reflection direction of the second reflected light L2 and up and down, left and right mainly in the upward direction with respect to the reflection direction of the third reflected light L3 from the third reflecting surface 53.

  In FIG. 3, the reflected lights L1, L2, L3, and L4 are the cornering lamps 3D on the outermost side (the left side L) of the vehicle C among the four cornering lamps 3A, 3B, 3C, and 3D. Only shown in FIG. The remaining cornering lamps 3A, 3B, and 3C also reflect the reflected lights L1, L2, L3, and L4, respectively, similarly to the cornering lamp 3D on the outermost side (left side L) of the vehicle C.

(Description of cornering lamp 3 (3A, 3B, 3C, 3D))
As shown in FIGS. 3 to 5, the four cornering lamps 3A, 3B, 3C, and 3D have light source axes (center axes of the cornering lamps 3A, 3B, 3C, and 3D) Z1, Z2, Z3, and Z4. Arranged in the lamp chamber 10 from the inner side (right side R) to the outer side (left side L) of the vehicle C so as to be substantially perpendicular to the lamp lens 12.

  As shown in FIG. 3, the light source axes Z1, Z2, Z3, and Z4 of the four cornering lamps 3A, 3B, 3C, and 3D are arranged on the inside (right side) of the vehicle C along the inclination of the lamp lens 12. From R) to the outside (left side L). That is, the light source axis Z1 of the cornering lamp 3A on the innermost side (right side R) of the vehicle C is θ1 on the outer side (left side L) of the vehicle C with respect to the axis O1 parallel to the vehicle axis OO. (For example, about 40 °). The light source axis Z2 of the second cornering lamp 3B from the inside (right side R) of the vehicle C is outside the vehicle C (left side L) with respect to the axis O2 parallel to the vehicle axis OO. It is directed to θ2 (for example, about 50 °). Further, the light source axis Z3 of the third cornering lamp 3C from the inside (right side R) of the vehicle C is outside the vehicle C (left side L) with respect to the axis O3 parallel to the vehicle axis OO. It is directed to θ3 (for example, about 60 °). Furthermore, the light source axis Z4 of the cornering lamp 3D on the outermost side (left side L) of the vehicle C is on the outer side (left side L) of the vehicle C with respect to an axis O4 parallel to the vehicle axis OO. It is directed to θ4 (for example, about 70 °).

  The light source axes Z1, Z2, Z3, and Z4 of the four cornering lamps 3A, 3B, 3C, and 3D pass through the centers F1, F2, F3, and F4 of the light emitting surface of the light emitting unit 40, respectively. In the four cornering lamps 3A, 3B, 3C, and 3D, the reference focal points of the first reflecting surface 51, the second reflecting surface 52, the third reflecting surface 53, and the fourth reflecting surface 54 are: Each is located at or near the center F1, F2, F3, F4 of the light emitting surface of the light emitting unit 40. Further, the reference optical axes of the first reflecting surface 51, the second reflecting surface 52, the third reflecting surface 53, and the fourth reflecting surface 54 are the centers F1 and F2 of the light emitting surface of the light emitting unit 40, respectively. , F3, F4 or the vicinity thereof. Furthermore, the reference optical axes of the first reflecting surface 51, the second reflecting surface 52, the third reflecting surface 53, and the fourth reflecting surface 54 are indicated by solid arrows in FIGS. 3 and 5, respectively. The reflected light L1, L2, L3, and L4 are approximately approximate. Furthermore, the light source axes Z1, Z2, Z3, and Z4 are approximately approximate to the third reflected light L3 of the third reflecting surface 53, respectively.

(Description of light distribution patterns P1, P2, P3, P4, P5)
The first reflected light L1 from the first reflecting surface 51 is converted into a left and right diffused first light distribution pattern P1 shown in FIG. 7A from the front side F of the vehicle C to the outside (left side) of the vehicle C. L). The first light distribution pattern P1 illuminates a range of about 0 ° to about 8 ° on the lower side of the screen and a range of about 25 ° to about 95 ° on the left side of the screen. That is, the first light distribution pattern P1 illuminates a range closer to the inside (right side R) of the vehicle C.

  The second reflected light L2 from the second reflecting surface 52 is a second light distribution pattern P2 diffused left and right as shown in FIG. 7C, from the front side F of the vehicle C to the outside (left side) of the vehicle C. L). The second light distribution pattern P2 illuminates a range of about 0 ° to about 9 ° on the lower side of the screen and a range of about 42 ° to about 108 ° on the left side of the screen. That is, the second light distribution pattern P2 illuminates a range near the outside (left side L) of the vehicle C.

  The third reflected light L3 from the third reflecting surface 53 is, as a third light distribution pattern P3 diffused vertically and horizontally shown in FIG. 7B, from the front side F of the vehicle C to the outside of the vehicle C ( Irradiate over left side L). The third light distribution pattern P3 illuminates a range of about 0 ° to about 17 ° on the lower side of the screen and a range of about 30 ° to about 117 ° on the left side of the screen. That is, the third light distribution pattern P3 illuminates by widely diffusing a range including most of the first light distribution pattern P1 and all of the second light distribution pattern P2.

  The fourth reflected light L4 from the fourth reflecting surface 54 is, as a fourth light distribution pattern P4 diffused vertically and horizontally shown in FIG. 8A, from the front side F of the vehicle C to the outside of the vehicle C ( Irradiate over left side L). The fourth light distribution pattern P4 illuminates a range of about 0 ° to about 10 ° or more on the upper side of the screen and a range of about 36 ° to about 120 ° on the left side of the screen. That is, the fourth light distribution pattern P4 illuminates by widely diffusing upward from the upper edge of the first light distribution pattern P1, the second light distribution pattern P2, and the third light distribution pattern P3.

  As shown in FIG. 8B, a fifth light distribution pattern P5 obtained by superimposing (combining) the first light distribution pattern P1, the second light distribution pattern P2, and the third light distribution pattern P3, Illuminate a lower range of about 0 ° to about 18 ° and a range of about 26 ° to about 120 ° on the left side of the screen. That is, the fifth light distribution pattern P5 illuminates the lower half of the pedestrian P from the front side F of the vehicle C to the outside (left side L) of the vehicle C. In addition, the fourth light distribution pattern P4 illuminates the upper body of the pedestrian P from the front side F of the vehicle C to the outside (left side L) of the vehicle C, as shown in FIGS. .

  The light distribution patterns P1, P2, P3, P4, and P5 correspond to the vertical line VU-VD above and below the screen in the case of the right vehicle lamp 1R mounted on the right side R of the vehicle C. It is almost symmetrical and illuminates the right side of the screen.

(Description of the operation of the embodiment)
The vehicular lamps 1L and 1R in this embodiment are configured as described above, and the operation thereof will be described below.

  For example, as shown in FIG. 6, when the vehicle C makes a left turn LC or a right turn RC at an intersection, the driver C or four automatic lighting devices mounted on the vehicle C are operated manually. The light emitting sections 40 of the semiconductor light sources 4 of the cornering lamps 3A, 3B, 3C, and 3D are turned on. The light emitted from the light emitting unit 40 is reflected by the first reflecting surface 51, the second reflecting surface 52, the third reflecting surface 53, and the fourth reflecting surface 54 of the reflector 5.

  The first reflected light L1 reflected by the first reflecting surface 51 is the first light distribution pattern P1 shown in FIG. 7A, and the second reflected light L2 reflected by the second reflecting surface 52 is FIG. As the second light distribution pattern P2 shown in C), the third reflected light L3 reflected by the third reflection surface 53 is reflected by the fourth reflection surface 54 as the third light distribution pattern P3 shown in FIG. 7B. The fourth reflected light L4 thus applied is irradiated as a fourth light distribution pattern P4 shown in FIG. 8A from the front side F of the vehicle C to the outside (left side L) of the vehicle C.

  The first light distribution pattern P1, the second light distribution pattern P2, and the third light distribution pattern P3 are superimposed (synthesized) to form a fifth light distribution pattern P5 shown in FIG. To the outside (left side L) of the vehicle C, the upper body of the pedestrian P is illuminated. Moreover, the 4th light distribution pattern P4 shown to FIG. 8 (A), (B) illuminates the upper body of the pedestrian P from the front side F of the vehicle C to the outer side (left side L) of the vehicle C. FIG.

  In the case of the right vehicle lamp 1R mounted on the right side R of the vehicle C, the light distribution patterns P1, P2, P3, P4, and P5 are substantially symmetrical with respect to the vertical line VU-VD above and below the screen. Thus, the lower body and upper body of the pedestrian P from the front side F of the vehicle C to the outside (right side R) of the vehicle C are illuminated.

  When the vehicle C completes the left turn LC or the right turn RC, the light emitting unit 40 of the semiconductor light source 4 is turned off by a manual operation of the driver or an automatic operation of an automatic lighting device mounted on the vehicle C.

(Explanation of effect of embodiment)
The vehicle lamps 1L and 1R in this embodiment are configured and operated as described above, and the effects thereof will be described below.

  The vehicular lamps 1L and 1R in this embodiment convert light from the light emitting unit 40 of the semiconductor-type light source 4 to the first reflected light L1 by the first reflecting surface 51 disposed on the outside (left side L) of the vehicle C. As shown in FIG. 7A, the first light distribution pattern P1 diffused to the left and right is mainly reflected on the inner side (right side R) of the vehicle C and arranged on the inner side (right side R) of the vehicle C. With the second reflecting surface 52, the light from the light emitting unit 40 of the semiconductor-type light source 4 is mainly used as the second reflected light L2, that is, as the second light distribution pattern P2 diffused left and right shown in FIG. It is reflected on the outside (left side L) of the vehicle C. As a result, a light distribution pattern that is long in the horizontal direction (left-right direction) (see the fifth light distribution pattern P5 shown in FIG. 8B) can be reliably formed.

  In particular, the vehicular lamps 1L and 1R in this embodiment have a first reflecting surface on which light emitted from the semiconductor-type light source 4 to the outside of the vehicle C with respect to the light source axes Z1 to Z4 is arranged outside the vehicle C. The second reflection surface 52 disposed on the inner side of the vehicle C reflects light that is reflected on the inner side of the vehicle C by the light source 51 and emitted from the semiconductor-type light source 4 to the light source axes Z1 to Z4. The light distribution pattern P5 that is long in the lateral direction is formed by so-called cross reflection that is reflected to the outside of the vehicle C. For this reason, the cornering lamp 3 (3A, 3B) of the lamp unit is compared with the conventional vehicle lamps of Patent Documents 1 and 2 in which a long light distribution pattern is formed in the lateral direction by open reflection. 3C, 3D) can be reduced in size. In this example, when four lamp units, that is, cornering lamps 3A, 3B, 3C, and 3D are arranged in the horizontal direction, the reflected lights L1, L2, and L3 from the cornering lamps 3A, 3B, 3C, and 3D are used. , L4 is not blocked by the adjacent cornering lamps 3A, 3B, 3C, 3D.

  As a result, the vehicle lamps 1L and 1R in this embodiment have an intersection of about 100 ° to about 120 ° (vehicle axis OO passing through the driver's eye point EP) at the intersection, as shown in FIG. A pedestrian P located about 100 ° to about 120 ° from an axis (not shown) parallel to the pedestrian, which can reliably illuminate the pedestrian P before crossing the pedestrian crossing, contributing to traffic safety can do.

  The vehicle lamps 1 </ b> L and 1 </ b> R in this embodiment receive light from the light emitting unit 40 of the semiconductor light source 4 by the third reflection surface 53 disposed between the first reflection surface 51 and the second reflection surface 52. The third reflected light L3 is diffused and reflected mainly vertically and horizontally in the reflecting direction of the first reflected light L1 from the first reflecting surface 51 and the reflecting direction of the second reflected light L2 from the second reflecting surface 52. is there. As a result, the third reflected light L3, that is, the third light distribution pattern P3 diffused in the vertical and horizontal directions shown in FIG. 7B, is diffused in the first reflected light L1, that is, the horizontal distribution shown in FIG. 7A. The light pattern P1 and the second reflected light L2, that is, the second light distribution pattern P2 diffused to the left and right shown in FIG. 7C are included. Thus, the fifth light distribution pattern P5 that is long in the horizontal direction (left-right direction) and thick in the vertical direction (vertical direction) and bright in the center as shown in FIG. The lower body of the pedestrian P from the front side F to the outside of the vehicle C (left side L, right side R) is reliably illuminated.

  In the vehicle lamps 1L and 1R in this embodiment, the third reflecting surface 53 is disposed on the lower side D of the light emitting unit 40 of the semiconductor-type light source 4 between the first reflecting surface 51 and the second reflecting surface 52. It is suitable for forming the third reflected light L3 reflected by the third reflecting surface 53 as a third light distribution pattern P3 diffused vertically and horizontally as shown in FIG. 7B.

  The vehicle lamps 1L and 1R in this embodiment receive light from the light emitting unit 40 of the semiconductor light source 4 by the fourth reflecting surface 54 disposed between the first reflecting surface 51 and the second reflecting surface 52. As the fourth reflected light L4, the reflection direction of the first reflected light L1 from the first reflecting surface 51, the reflecting direction of the second reflected light L2 from the second reflecting surface 52, and the third reflection from the third reflecting surface 53 are shown. The light is diffusely reflected in the upward, downward, leftward and rightward directions mainly with respect to the reflection direction of the light L3. As a result, the fourth reflected light L4, that is, the fourth light distribution pattern P4 diffused in the vertical and horizontal directions shown in FIGS. 8A and 8B is diffused in the first reflected light L1, that is, the right and left shown in FIG. The first light distribution pattern P1 and the second reflected light L2, that is, the second light distribution pattern P2 and the third reflected light L3 diffused in the left and right directions shown in FIG. Irradiation is performed upward from the upper edge of the third light distribution pattern P3. This reliably illuminates the upper body of the pedestrian P from the front side F of the vehicle C to the outside (left side L, right side R) of the vehicle C.

  In the vehicle lamps 1L and 1R in this embodiment, the fourth reflection surface 54 is arranged between the first reflection surface 51 and the second reflection surface 52 on the lower side D of the light emitting unit 40 of the semiconductor light source 4, The fourth reflected light L4 reflected by the fourth reflecting surface 54 is converted into a fourth light distribution pattern P4 diffused vertically and horizontally as shown in FIGS. It is suitable for forming upward from the upper edge of the light distribution pattern P2 and the third light distribution pattern P3.

  The vehicle lamps 1L, 1R in this embodiment are four so that the light source axes Z1, Z2, Z3, Z4 of the four cornering lamps 3A, 3B, 3C, 3D are substantially perpendicular to the lamp lens 12. Cornering lamps 3A, 3B, 3C, and 3D are arranged in the lamp chamber 10 from the inside (right side R, left side L) to the outside (left side L, right side R) of the vehicle C. That is, the four cornering lamps 3A, 3B, 3C, and 3D are arranged along the inclination of the lamp lens 12 from the cornering lamp 3A on the inside (right side R, left side L) of the vehicle C to the outside (left side L, right side R). The light source axes Z1, Z2, Z3, and Z4 face the cornering lamp 3D from the inside (right side R, left side L) to the outside (left side L, right side R) of the vehicle C. As a result, the reflected lights L1, L2, L3, and L4 from the four cornering lamps 3A, 3B, 3C, and 3D are left and right from the inside (right side R, left side L) to the outside (left side L, right side R) of the vehicle C. Even if it is diffused over a wide range (about 26 ° to about 120 °), the reflected light L1, L2, L3, L4 from the four cornering lamps 3A, 3B, 3C, 3D is incident on the surface of the lamp lens 12 The angle to do can be made small. Thereby, the amount of reflected light L1, L2, L3, L4 from the four cornering lamps 3A, 3B, 3C, 3D reflected on the surface of the lamp lens 12 can be suppressed as much as possible. That is, the reflected lights L1, L2, L3, and L4 from the four cornering lamps 3A, 3B, 3C, and 3D can be effectively used, and a wide range (about 26 ° to about 120 °) is ensured on the left and right. Can be illuminated.

(Description of example other than embodiment)
In the above-described embodiment, an example in which four cornering lamps 3 (3A, 3B, 3C, 3D) are used as the lamp unit will be described. However, in the present invention, the lamp unit may be one cornering lamp, two, three, five or more cornering lamps.

  In the above embodiment, the reflector 5 of the lamp unit includes the first reflecting surface 51, the second reflecting surface 52, the third reflecting surface 53, and the fourth reflecting surface 54. However, in the present invention, it is sufficient if it has at least the first reflecting surface 51 and the second reflecting surface 52.

1L, 1R Vehicle lamp 10 Lamp chamber 11 Lamp housing 12 Lamp lens 20 Low beam lamp 21 High beam lamp 22 Clearance lamp 23 Turn signal lamp 3 (3A, 3B, 3C, 3D) Cornering lamp 4 Semiconductor light source 40 Light emitting section 41 Substrate 5 Reflector 50 Heat sink 51 First reflective surface 52 Second reflective surface 53 Third reflective surface 54 Fourth reflective surface C Vehicle F Front side B Rear side U Upper side D Lower side L Left side (Vehicle outside)
R right side (vehicle inside)
Horizontal lines on the left and right of the HL-HR screen VU-VD Vertical lines on the top and bottom of the screen L1 First reflected light L2 Second reflected light L3 Third reflected light L4 Fourth reflected light P1 First light distribution pattern P2 Second light distribution pattern P3 Third light distribution pattern P4 Fourth light distribution pattern P5 Fifth light distribution pattern F1 to F4 Center of light emitting surface OO Vehicle axis O1 to O4 Axis parallel to vehicle axis Z1 to Z4 Light source axis θ1 to θ4 Parallel to vehicle axis Angle between the right axis and the light source axis P Pedestrian EP Eye point LC Left turn RC Right turn

Claims (1)

A lamp housing and a lamp lens that partition the lamp chamber;
A lamp unit disposed in the lamp chamber;
With
The lamp unit is composed of a semiconductor-type light source and a reflector,
The reflector has at least a first reflecting surface and a second reflecting surface,
The first reflective surface is disposed outside the vehicle with respect to the second reflective surface, and reflects light from the semiconductor light source mainly inside the vehicle with respect to the reflection direction of the second reflective surface. Reflecting surface
The second reflecting surface is disposed inside the vehicle with respect to the first reflecting surface, and reflects light from the semiconductor-type light source mainly to the outside of the vehicle with respect to the reflection direction of the first reflecting surface. Is a reflective surface,
A vehicular lamp characterized by the above.

Images