JP2012129022A - Lamp for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology for reducing consumption power in a lamp for vehicle capable of forming an additional light distribution pattern which includes the upper region from a cut-off line of a low-beam light distribution pattern and is divided into a plurality of individual patterns.SOLUTION: The lamp for vehicle 1 can form an additional light distribution pattern which includes the upper region from a cut-off line of a low-beam light distribution pattern and is divided into a plurality of individual patterns, and is provided with a lamp unit 20L for forming a part of the plurality of individual patterns and a lamp unit 20R for forming the other part of the plurality of individual patterns including individual patterns which are not formed at least by the lamp unit 20L. The individual patterns formed in each lamp unit are synthesized and the additional light distribution patterns are formed.

Description

  The present invention relates to a vehicular lamp, and more particularly to a vehicular lamp used in an automobile or the like.

  As vehicle lamps, Patent Literatures 1 to 3 disclose a vehicle headlamp device that includes an upper region from a cut-off line of a low beam light distribution pattern and can form an additional light distribution pattern divided into a plurality of individual patterns. Is disclosed.

JP 2009-179113 A JP 2009-218155 A JP 2010-118274 A

  The vehicle headlamp device described above has a right headlamp unit disposed on the right side in front of the vehicle and a left headlamp unit disposed on the left side in front of the vehicle. Each headlamp unit is provided with a lamp unit having a plurality of light sources corresponding to each of the plurality of individual patterns. In the vehicle headlamp device, all the individual patterns are formed by the left and right headlamp units, and these are overlapped to form an additional light distribution pattern. For this reason, the conventional vehicular lamp has room for improvement in order to reduce power consumption.

  The present invention has been made in view of these problems, and an object of the present invention is to provide a vehicle capable of forming an additional light distribution pattern that includes a region above the cut-off line of the low beam light distribution pattern and is divided into a plurality of individual patterns. An object of the present invention is to provide a technique for reducing power consumption in a lamp.

  In order to solve the above-described problems, an aspect of the present invention is a vehicular lamp, and the vehicular lamp includes an upper region from a cut-off line of a low-beam light distribution pattern and is divided into a plurality of individual patterns. A vehicle lamp capable of forming a light distribution pattern, including a first lamp unit for forming a part of the plurality of individual patterns, and a plurality of individual patterns including at least an individual pattern not formed by the first lamp unit. And a second lamp unit for forming a part of the lamp unit. The individual patterns formed by the lamp units are combined to form an additional light distribution pattern.

  According to this aspect, it is possible to reduce power consumption in the vehicular lamp that can form the additional light distribution pattern including the region above the cut-off line of the low beam light distribution pattern and divided into a plurality of individual patterns. .

  In the above aspect, the additional light distribution pattern has a central individual pattern that overlaps a horizontal center line of the additional light distribution pattern, and the central individual pattern is a side closer to the driver's seat of the first lamp unit and the second lamp unit. It may be formed by the lamp unit. According to this, compared with the case where the center individual pattern is formed by the lamp unit far from the driver's seat, the driver's front area can be irradiated to the near side, thus improving the driver's visibility. Can do.

  In the above aspect, a part of the plurality of individual patterns is an overlapping pattern formed by overlapping a first precursor pattern formed by the first lamp unit and a second precursor pattern formed by the second lamp unit, The illuminance of each of the first precursor pattern and the second precursor pattern may be set so that the total illuminance of the first precursor pattern and the second precursor pattern becomes the target illuminance of the superimposed pattern. According to this, a fail-safe function for ensuring the driver's visibility in the overlapping pattern formation region can be realized, and the illuminance in the overlapping pattern formation region is extremely increased compared to other regions. Thus, the driver can be prevented from feeling uncomfortable.

  In the above aspect, the vehicular lamp may be capable of forming an auxiliary light distribution pattern that overlaps at least part of the boundaries of the plurality of individual patterns. According to this, since the boundary between adjacent individual patterns can be blurred, it is possible to further reduce the uncomfortable feeling that the boundary gives to the driver.

  According to the present invention, it is possible to reduce power consumption in a vehicular lamp that includes an upper region from a cut-off line of a low-beam light distribution pattern and can form an additional light distribution pattern divided into a plurality of individual patterns. .

1 is a schematic horizontal sectional view of a vehicular lamp according to a first embodiment. FIG. 2A to FIG. 2C are schematic views for explaining an additional light distribution pattern formed by the vehicular lamp according to the first embodiment. FIGS. 3A to 3C are schematic diagrams for explaining an additional light distribution pattern formed by the vehicular lamp according to the second embodiment. FIG. 4 is a schematic diagram for explaining an auxiliary light distribution pattern formed by the vehicular lamp according to the third embodiment.

  The present invention will be described below based on preferred embodiments with reference to the drawings. The same or equivalent components, members, and processes shown in the drawings are denoted by the same reference numerals, and repeated descriptions are omitted as appropriate. The embodiments do not limit the invention but are exemplifications, and all features and combinations thereof described in the embodiments are not necessarily essential to the invention.

(Embodiment 1)
FIG. 1 is a schematic horizontal sectional view of a vehicular lamp according to the first embodiment. The vehicular lamp 1 according to the present embodiment is a vehicular headlamp device including a right headlamp unit 1R and a left headlamp unit 1L. The right headlight unit 1R is disposed on the right side in front of the vehicle, and the left headlight unit 1L is disposed on the left side in front of the vehicle. In the present embodiment, the vehicle on which the vehicular lamp 1 is mounted is a so-called right-hand drive vehicle in which the driver's seat is arranged on the right side.

  The left headlight unit 1L and the right headlight unit 1R each have a lamp chamber 3 formed of a lamp body 2 having an opening on the vehicle front side and a translucent cover 4 covering the opening. A lamp unit 10 and a lamp unit 20 are accommodated in the lamp chamber 3. The lamp unit 10 and the lamp unit 20 are respectively supported in the lamp chamber 3 by support members (not shown). Hereinafter, as appropriate, the lamp unit 20 of the left headlamp unit 1L is referred to as a lamp unit 20L, and the lamp unit 20 of the right headlamp unit 1R is referred to as a lamp unit 20R. The lamp chamber 3 accommodates an extension member 6 having an opening in the area where the lamp units 10 and 20 are present. The extension member 6 is fixed to the lamp body 2. The extension member 6 covers a region between the opening of the lamp body 2 and the lamp units 10 and 20 when viewed from the front of the lamp.

  The lamp unit 10 is a so-called parabolic lamp unit and forms a low beam light distribution pattern. The lamp unit 10 includes a light source bulb 12, a reflector 14, and a shade 16. The light source bulb 12 is composed of an incandescent lamp having a filament such as a halogen lamp. The light source bulb 12 may be a discharge lamp composed of an HID lamp (also called a discharge lamp) such as a metal halide bulb. The reflector 14 is formed in a cup shape, and an insertion hole is provided in the center. The light source bulb 12 is inserted into the insertion hole of the reflector 14 and fixed to the reflector 14. The reflector 14 has a reflecting surface that reflects light emitted from the light source bulb 12 toward the front of the vehicle. The shade 16 blocks light traveling directly from the light source bulb 12 to the front of the vehicle. Since the structure of the lamp unit 10 is well-known, the detailed description regarding the lamp unit 10 is abbreviate | omitted. The shape of the lamp unit 10 is not particularly limited to this, and may be a so-called projector-type lamp unit.

  The lamp unit 20L (first lamp unit) of the left headlamp unit 1L is a so-called projector-type lamp unit, and forms a part of a plurality of individual patterns constituting an additional light distribution pattern described later. The lamp unit 20L includes a projection lens 22 and a light source unit 24L. The projection lens 22 is a plano-convex aspherical lens having a convex front surface and a flat rear surface, and a light source image formed on the rear focal plane FP including the rear focus F of the projection lens 22 as an inverted image. Project onto a virtual vertical screen in front of the lamp.

  The light source unit 24L includes a first individual pattern forming unit 26, a second individual pattern forming unit 28, a first shading member 36, and a second shading member 38. The first individual pattern forming unit 26 and the second individual pattern forming unit 28 have light emitting elements 26a and 28a and reflectors 26b and 28b as light sources, respectively. In addition to the light emitting element, an incandescent bulb, a halogen lamp, a discharge bulb or the like may be adopted as the light source. The reflectors 26b and 28b have a substantially elliptical reflecting surface at least in part, and the light emitting elements 26a and 28a are disposed in the vicinity of the first focal point of the reflecting surface. In addition, the reflectors 26 b and 28 b are arranged so that the second focal point of the reflecting surface is deviated from the rear focal plane FP of the projection lens 22.

  The second individual pattern forming unit 28 is arranged so that the light emitting element 28a is located on the left side of the optical axis X of the lamp unit 20L when viewed from the front of the lamp. The first individual pattern forming unit 26 is disposed on the left side of the second individual pattern forming unit 28 when viewed from the front of the lamp. The 1st shading member 36 and the 2nd shading member 38 are plate-shaped members, and the reflective surface is formed in the main surface. As for the 1st shading member 36, between the 1st individual pattern formation unit 26 and the 2nd individual pattern formation unit 28, the one main surface faces the 1st individual pattern formation unit 26, and the other main surface is the 2nd. It is arranged so as to face the individual pattern forming unit 28. The second shading member 38 is arranged on the right side of the second individual pattern forming unit 28 as viewed from the front of the lamp so that one main surface thereof faces the second individual pattern forming unit 28. Further, the ends of the first shading member 36 and the second shading member 38 that extend toward the projection lens 22 are located behind the rear focal plane FP of the projection lens 22.

  In the first individual pattern forming unit 26, the light emitted from the light emitting element 26a is reflected toward the first shading member 36 by the reflector 26b. The light reaching the first shading member 36 from the reflector 26b is reflected by the reflecting surface of the first shading member 36, enters the projection lens 22, passes through the projection lens 22, and is irradiated forward of the lamp. In the second individual pattern forming unit 28, the light emitted from the light emitting element 28a is reflected toward the projection lens 22 by the reflector 28b, and is emitted from the projection lens 22 to the front of the lamp.

  The lamp unit 20R (second lamp unit) of the right headlamp unit 1R is a so-called projector-type lamp unit, and forms another part of a plurality of individual patterns constituting an additional light distribution pattern described later. The lamp unit 20R includes a projection lens 22 and a light source unit 24R. The projection lens 22 is the same as the projection lens 22 of the light source unit 24L.

  The light source unit 24R includes a third individual pattern forming unit 30, a fourth individual pattern forming unit 32, a fifth individual pattern forming unit 34, a third shading member 40, a fourth shading member 42, and a fifth shading member 44. The third individual pattern forming unit 30, the fourth individual pattern forming unit 32, and the fifth individual pattern forming unit 34 have light emitting elements 30a, 32a, 34a, and reflectors 30b, 32b, 34b as light sources, respectively. In addition to the light emitting element, an incandescent bulb, a halogen lamp, a discharge bulb or the like may be adopted as the light source. The reflectors 30b, 32b, and 34b each have a substantially elliptical reflecting surface at least at a part thereof, and the light emitting elements 30a, 32a, and 34a are disposed near the first focal point of the reflecting surface. The reflector 30b is arranged so that the rear focal point F of the projection lens 22 is located in the vicinity of the second focal point of the reflecting surface. The reflectors 32 b and 34 b are arranged so that the second focal point of the reflecting surface is shifted with respect to the rear focal plane FP of the projection lens 22.

  The third individual pattern forming unit 30 is arranged such that the light emitting element 30a is positioned on the optical axis X. The fourth individual pattern forming unit 32 has a symmetrical structure with the second individual pattern forming unit 28 of the light source unit 24L, and is arranged so that the light emitting element 32a is positioned on the right side of the optical axis X when viewed from the front of the lamp. Yes. The fifth individual pattern forming unit 34 has a symmetrical structure with the first individual pattern forming unit 26 of the light source unit 24L, and is disposed on the right side of the fourth individual pattern forming unit 32 when viewed from the front of the lamp. The third shading member 40, the fourth shading member 42, and the fifth shading member 44 are the same as the first shading member 36 and the second shading member 38 of the light source unit 24L. The third shading member 40 is arranged on the left side of the third individual pattern forming unit 30 when viewed from the front of the lamp so that one main surface thereof faces the third individual pattern forming unit 30. As for the 4th shading member 42, between the 3rd individual pattern formation unit 30 and the 4th individual pattern formation unit 32, one main surface faces the 3rd individual pattern formation unit 30, and the other main surface is the 4th. It is arranged so as to face the individual pattern forming unit 32. Between the fourth individual pattern forming unit 32 and the fifth individual pattern forming unit 34, the fifth shading member 44 has one main surface facing the fourth individual pattern forming unit 32 and the other main surface being the fifth. It is arranged so as to face the individual pattern forming unit 34. The end portions of the third shading member 40, the fourth shading member 42, and the fifth shading member 44 that extend toward the projection lens 22 are located behind the rear focal plane FP of the projection lens 22.

  In the third individual pattern forming unit 30, the light emitted from the light emitting element 30a is reflected toward the projection lens 22 by the reflector 30b, enters the projection lens 22 through the rear focal point F of the projection lens 22, and enters the projection lens. 22 is irradiated forward of the lamp. In the fourth individual pattern forming unit 32, the light emitted from the light emitting element 32a is reflected toward the projection lens 22 by the reflector 32b and is emitted from the projection lens 22 to the front of the lamp. In the fifth individual pattern forming unit 34, the light emitted from the light emitting element 34a is reflected toward the fifth shading member 44 by the reflector 34b. The light reaching the fifth shading member 44 from the reflector 34b is reflected by the reflecting surface of the fifth shading member 44, enters the projection lens 22, passes through the projection lens 22, and is irradiated forward of the lamp.

  In the first individual pattern forming unit 26 and the fifth individual pattern forming unit 34, the light reflected by the reflectors 26 b and 34 b is reflected by the reflecting surfaces of the first shading member 36 and the fifth shading member 44, respectively. Configured to proceed to. Accordingly, the first individual pattern forming unit 26 and the fifth individual pattern forming unit 34 can be arranged closer to the outer periphery of the projection lens 22 than in the case where light is reflected toward the projection lens 22 by the reflectors 26b and 34b. As a result, the installation space for the adjacent second individual pattern forming unit 28 and the fourth individual pattern forming unit 32 can be increased. Therefore, the reflectors 28b and 32b can be enlarged to increase the utilization rate of light fluxes in the second individual pattern forming unit 28 and the fourth individual pattern forming unit 32.

  Next, an additional light distribution pattern that can be formed by the vehicular lamp 1 will be described. FIG. 2A to FIG. 2C are schematic views for explaining an additional light distribution pattern formed by the vehicular lamp according to the first embodiment. FIG. 2A shows a low beam light distribution pattern and an additional light distribution pattern divided into a plurality of individual patterns. FIG. 2B shows an individual pattern formed by the lamp unit 20L. FIG. 2C shows an individual pattern formed by the lamp unit 20R. 2A to 2C show light distribution patterns formed on a virtual vertical screen disposed at a predetermined position in front of the lamp, for example, at a position 25 m ahead of the lamp.

  As shown in FIG. 2A, in the vehicular lamp 1 according to this embodiment, the lamp unit 10 forms a low beam light distribution pattern PL, and the lamp unit 20 forms an additional light distribution pattern PH. Since the shape of the low beam light distribution pattern PL is known, a detailed description of the low beam light distribution pattern PL is omitted. The additional light distribution pattern PH is a light distribution pattern including regions above the cut-off lines CL1, CL2, CL3 of the low beam light distribution pattern PL, and is formed in addition to the low beam light distribution pattern PL. The additional light distribution pattern PH is a light distribution pattern that illuminates a wide area in the front and a distant place, and is formed, for example, when it is not necessary to consider glare to the vehicle ahead or a pedestrian.

  Further, the additional light distribution pattern PH is divided into a plurality of individual patterns PHa, PHb, PHc, PHd, and PHe each having a substantially rectangular shape. The additional light distribution pattern PH is a substantially rectangular pattern long in the horizontal direction, in which the individual patterns PHa to PHe are formed in a horizontal row. As shown in FIG. 2B, the individual patterns PHa and PHb are formed by the lamp unit 20L. Specifically, the individual pattern PHa is formed by the first individual pattern forming unit 26, and the individual pattern PHb is formed by the second individual pattern forming unit 28. As shown in FIG. 2C, the individual patterns PHc to PHe are formed by the lamp unit 20R. Specifically, the individual pattern PHc is formed by the third individual pattern forming unit 30, the individual pattern PHd is formed by the fourth individual pattern forming unit 32, and the individual pattern PHe is formed by the fifth individual pattern forming unit 34. .

  That is, individual patterns PHa and PHb are formed as part of a plurality of individual patterns by the lamp unit 20L, and individual patterns PHc to PHe that are not formed by the lamp unit 20L are formed as other parts of the plurality of individual patterns by the lamp unit 20R. Has been. The individual light patterns formed by the lamp units are combined to form the additional light distribution pattern PH. Thereby, compared with the case where all the separate patterns are formed in each of the left and right headlamp units and combined to form the additional light distribution pattern, the power consumption can be reduced. Moreover, since the number of light emitting elements can be reduced, the manufacturing cost of the vehicle lamp can be reduced.

  The individual pattern PHc is a central individual pattern that overlaps the horizontal center line of the additional light distribution pattern PH. In FIG. 2A, this center line coincides with the vertical line V. The individual pattern PHc, which is the center individual pattern, is formed by the lamp unit 20R on the side close to the driver's seat. Thus, by forming the center individual pattern by the lamp unit on the side closer to the driver's seat, the virtual vertical screen is moved from the vehicular lamp 1 compared to the case where the center individual pattern is formed by the lamp unit on the side far from the driver's seat. In the area up to, it is possible to irradiate the front area of the driver to the near side. Therefore, the visibility of the driver can be improved.

  As described above, the end portion of each shading member extending toward the projection lens 22 is located behind the rear focal plane FP of the projection lens 22. For this reason, the contours of the individual patterns arranged in the horizontal direction (contours extending in the vertical direction) are unclear, and the boundaries between the adjacent individual patterns are unclear. As a result, the additional light distribution pattern PH becomes a light distribution pattern in which adjacent individual patterns are continuously combined into one, and the uncomfortable feeling given to the driver by the boundary between the adjacent individual patterns can be reduced.

  As described above, the vehicular lamp 1 according to the present embodiment includes the lamp unit 20L that forms part of a plurality of individual patterns and the individual pattern that is not formed by the lamp unit 20L as another part of the plurality of individual patterns. The additional light distribution pattern PH is formed by synthesizing individual patterns formed by the respective lamp units. Therefore, power consumption can be reduced as compared with the case where all the individual patterns are formed by the left and right headlamp units and the additional light distribution pattern PH is formed by superimposing them. Moreover, since the number of light emitting elements can be reduced, the manufacturing cost of the vehicle lamp 1 can be reduced.

(Embodiment 2)
The vehicular lamp 1 according to the second embodiment is formed by overlapping a first precursor pattern formed by the lamp unit 20L and a second precursor pattern formed by the lamp unit 20R on a part of the plurality of individual patterns PHa to PHe. The additional light distribution pattern PH including the overlapping pattern is formed. Hereinafter, this embodiment will be described. In addition, since the main structure of the vehicle lamp 1 is the same as that of Embodiment 1, the same code | symbol is attached | subjected about the structure similar to Embodiment 1, and the description and illustration are abbreviate | omitted suitably.

  FIGS. 3A to 3C are schematic diagrams for explaining an additional light distribution pattern formed by the vehicular lamp according to the second embodiment. FIG. 3A shows the additional light distribution pattern divided into a plurality of individual patterns and the illuminance distribution thereof. In FIG. 3A, the low-beam light distribution pattern PL is not shown. FIG. 3B shows an individual pattern formed by the lamp unit 20L and its illuminance distribution. FIG. 3C shows an individual pattern formed by the lamp unit 20R and its illuminance distribution. As shown in FIG. 3A, the additional light distribution pattern PH formed by the vehicular lamp 1 according to the present embodiment is a light distribution pattern having the same shape as that of the first embodiment. Further, as indicated by the illuminance distribution curve I, the additional light distribution pattern PH is higher as it approaches the individual pattern PHc located at the center in the horizontal direction of the additional light distribution pattern PH, and the region of the individual pattern PHc has substantially the same height. The illuminance distribution is as follows.

  As shown in FIG. 3B, the individual pattern PHa, the individual pattern PHb, and the individual pattern PHc ′ (first precursor pattern) are formed by the lamp unit 20L. Specifically, the individual pattern PHa is formed by the first individual pattern forming unit 26, and the individual pattern PHb is formed by the second individual pattern forming unit 28. In the vehicular lamp 1 according to the present embodiment, the lamp unit 20L is provided with the third individual pattern forming unit 30 similar to the lamp unit 20R, and the third individual pattern forming unit 30 forms the individual pattern PHc ′. The Further, as shown in FIG. 3C, the individual pattern PHc ′ (second precursor pattern), the individual pattern PHd, and the individual pattern PHe are formed by the lamp unit 20R. Specifically, the individual pattern PHc ′ is formed by the third individual pattern forming unit 30, the individual pattern PHd is formed by the fourth individual pattern forming unit 32, and the individual pattern PHe is formed by the fifth individual pattern forming unit 34. The

  Then, the individual patterns PHa, PHb, and PHc ′ formed by the lamp unit 20L and the individual patterns PHc ′, PHd, and PHe formed by the lamp unit 20R are combined to form the additional light distribution pattern PH. The individual pattern PHc of the additional light distribution pattern PH is an overlapping pattern formed by overlapping the individual pattern PHc ′ formed by the lamp unit 20L and the individual pattern PHc ′ formed by the lamp unit 20R. Note that the individual patterns other than the individual pattern PHc may be superimposed patterns. Further, two or more individual patterns may be superposed patterns.

  The illuminance of the individual pattern PHc ′ formed by each lamp unit is set so that the total illuminance of each individual becomes the target illuminance of the individual pattern PHc. Specifically, as shown by the illuminance distribution curve IL in FIG. 3B, the light distribution pattern formed by the lamp unit 20L is such that the illuminance of the individual pattern PHc ′ is the individual pattern PHc in the adjacent individual pattern PHb. 'It is set below the illuminance of the border area on the side. Similarly, as indicated by the illuminance distribution curve IR in FIG. 3C, the light distribution pattern formed by the lamp unit 20LR has an illuminance of the individual pattern PHc ′ on the individual pattern PHc ′ side of the adjacent individual pattern PHd. It is set below the illuminance of the border area. In addition, the illuminance of each individual pattern PHc ′ is set to ½ or more of the illuminance of the boundary region close to itself in the adjacent individual pattern. The illuminance setting of the individual pattern PHc ′ can be executed by adjusting the area of the reflector 30b, adjusting the power supplied to the light emitting element 30a, or the like.

  As described above, the additional light distribution pattern PH formed by the vehicular lamp 1 according to the present embodiment partially includes an overlapping pattern formed by overlapping the precursor patterns formed by the lamp units. Thereby, even if one of the lamp unit 20L and the lamp unit 20R breaks down, a fail-safe function that ensures the visibility of the driver in the irradiation region of the superimposed pattern can be realized. In particular, since the individual pattern PHc that overlaps the vertical line V is used as an overlapping pattern, it is possible to reliably irradiate the front area of the vehicle where the driver needs to ensure the visibility, so that a higher fail-safe function is realized. be able to. Further, the illuminance of each precursor pattern is set so that the total illuminance of each precursor becomes the target illuminance of the superimposed pattern. For this reason, it is possible to avoid that the illuminance of the overlapping pattern forming region is extremely increased as compared with other regions, thereby causing the driver to feel uncomfortable.

(Embodiment 3)
The vehicular lamp 1 according to the third embodiment can form an auxiliary light distribution pattern that overlaps at least a part of the boundaries between the plurality of individual patterns PHa to PHe. Hereinafter, this embodiment will be described. In addition, since the main structure of the vehicle lamp 1 is the same as that of Embodiment 1, the same code | symbol is attached | subjected about the structure similar to Embodiment 1, and the description and illustration are abbreviate | omitted suitably.

  FIG. 4 is a schematic diagram for explaining an auxiliary light distribution pattern formed by the vehicular lamp according to the third embodiment. In FIG. 4, the low-beam light distribution pattern PL is not shown. As shown in FIG. 4, the vehicular lamp 1 according to the present embodiment can form an auxiliary light distribution pattern PS that overlaps the boundaries of the plurality of individual patterns PHa to PHe. By forming the auxiliary light distribution pattern PS, the boundary between adjacent individual patterns can be made more unclear.

  The auxiliary light distribution pattern PS in the present embodiment includes a boundary between the individual pattern PHa and the individual pattern PHb, a boundary between the individual pattern PHb and the individual pattern PHc, a boundary between the individual pattern PHc and the individual pattern PHd, and a boundary between the individual pattern PHd and the individual pattern PHe. It is a pattern that overlaps the border. However, the shape of the auxiliary light distribution pattern PS is not limited to this, and may be a pattern that overlaps at least a part of the boundary between the individual patterns PHa to PHe. Even in this case, the boundary of at least a part of the adjacent individual patterns can be made more unclear. In addition, since the auxiliary light distribution pattern PS is a pattern for blurring the boundaries of the individual patterns, the illuminance can be lower than that of the additional light distribution pattern PH. The vehicular lamp 1 further includes, for example, a third lamp unit (not shown) in addition to the lamp unit 10 and the lamp unit 20, and the auxiliary light distribution pattern PS is formed by the third lamp unit.

  As described above, the vehicular lamp 1 according to the present embodiment can form the auxiliary light distribution pattern PS that overlaps the boundaries of the plurality of individual patterns PHa to PHe. Thereby, the boundary of an adjacent individual pattern can be made more unclear. As a result, the uncomfortable feeling given to the driver by the boundary between adjacent individual patterns can be further reduced.

  The present invention is not limited to the above-described embodiments, and it is possible to combine the embodiments or to add various modifications such as design changes based on the knowledge of those skilled in the art. Embodiments to which modifications are made are also included in the scope of the present invention. Each of the above-described embodiments and a new embodiment resulting from the combination of each of the above-described embodiments and the following modified examples have the effects of the combined embodiments and modified examples.

  In each of the embodiments described above, the additional light distribution pattern PH may be used as a high beam light distribution pattern, or a light distribution pattern added to the low beam light distribution pattern separately from the high beam light distribution pattern. Also good.

  1 vehicle lamp, 20, 20L, 20R lamp unit, PL low beam light distribution pattern, PH additional light distribution pattern, PHa, PHb, PHc, PHd, PHe, PHc ′ individual pattern, PS auxiliary light distribution pattern.

Claims (4)

A vehicular lamp that includes an upper region from a cut-off line of a low beam light distribution pattern and is capable of forming an additional light distribution pattern divided into a plurality of individual patterns,
A first lamp unit for forming a part of the plurality of individual patterns;
A second lamp unit for forming at least another part of the plurality of individual patterns including an individual pattern not formed by the first lamp unit,
A vehicular lamp, wherein the additional light distribution pattern is formed by combining individual patterns formed by the lamp units. The additional light distribution pattern has a center individual pattern that overlaps the horizontal center line of the additional light distribution pattern,
The vehicular lamp according to claim 1, wherein the center individual pattern is formed by a lamp unit closer to a driver's seat among the first lamp unit and the second lamp unit. A part of the plurality of individual patterns is a superimposed pattern formed by overlapping a first precursor pattern formed by the first lamp unit and a second precursor pattern formed by the second lamp unit,
3. The vehicular lamp according to claim 1, wherein the illuminance of each of the first precursor pattern and the second precursor pattern is set such that the total illuminance of the first precursor pattern and the second precursor pattern becomes a target illuminance of the overlapping pattern.   The vehicular lamp according to any one of claims 1 to 3, wherein an auxiliary light distribution pattern that overlaps at least a part of a boundary between the plurality of individual patterns can be formed.

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