JP2019032961A - Vehicular lighting tool - Google Patents

Abstract

To provide a projector type vehicular lighting tool with a shade, for enabling the formation of an overhead sign irradiation light distribution pattern and a high-beam light distribution pattern in a simple lighting-tool construction.SOLUTION: Between a shade 20 and a projection lens 12, an overhead sign irradiation reflector 22 is arranged for reflecting light toward the projection lens 12 to form an overhead sign irradiation light distribution pattern. Besides, a second light source 24 is arranged on the rear side further than the projection lens 12, and a sub reflector 26 is arranged between the second light source 24 and the projection lens 12. Then, the overhead sign irradiation reflector 22 reflects light emitted from the second light source 24 to form a high-beam additional light distribution pattern, and the sub reflector 26 and the overhead sign irradiation reflector 22 sequentially reflect light emitted from a light source 14 to form the overhead sign irradiation light distribution pattern. This eliminates the need for a shade 20 to be of a movable type.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a projector-type vehicular lamp provided with a shade.

  Conventionally, a projector-type vehicle configured to form a low-beam light distribution pattern by irradiating light emitted from a light source disposed on the rear side of the projection lens forward through the projection lens. Lamps are known.

  In “Patent Document 1”, as a configuration of such a vehicular lamp, a part of light directed from a light source to a projection lens in order to form a cut-off line of a low beam light distribution pattern between the projection lens and the light source. There is a description in which a shade for shading is arranged.

  In the vehicular lamp described in “Patent Document 1”, a sub-reflector is disposed behind the projection lens, and an overhead sign irradiation reflector is disposed near the front of the shade. Then, the light distribution pattern for overhead sign irradiation is formed above the light distribution pattern for low beam by the light sequentially reflected by the sub reflector and the reflector for overhead sign irradiation.

  Further, in the vehicle lamp described in “Patent Document 1”, the shade is arranged in such a manner that the shade can take the light shielding position for performing the light shielding and the light shielding releasing position for releasing the light shielding, and the shade is in the light shielding position. In this case, a low beam light distribution pattern is formed, and a high beam light distribution pattern is formed when in the light shielding release position.

JP-A-2015-82339

  In the above conventional vehicle lamp, the light distribution pattern for overhead sign irradiation can be formed above the light distribution pattern for low beam, but the shade allows the light distribution pattern for high beam to be formed. Since it is configured as a movable shade, the lamp structure is complicated.

  The present invention has been made in view of such circumstances, and in a projector-type vehicle lamp provided with a shade, a light distribution pattern for overhead sign irradiation and a light distribution pattern for high beam are formed with a simple lamp configuration. An object of the present invention is to provide a vehicular lamp that can be used.

  The present invention is intended to achieve the above object by adopting a configuration in which a predetermined second light source is additionally arranged.

That is, the vehicular lamp according to the present invention is
A projection lens and a light source disposed on the rear side of the projection lens, and configured to form a low beam light distribution pattern by irradiating light emitted from the light source forward through the projection lens. Vehicle lamps
Between the projection lens and the light source, a shade for shielding a part of the light from the light source toward the projection lens in order to form a cut-off line of the low beam light distribution pattern is disposed,
Between the shade and the projection lens, an overhead marker irradiation reflector for reflecting light for forming an overhead marker illumination light distribution pattern toward the projection lens is disposed above the low beam distribution pattern. And
A second light source for allowing light to enter the overhead marker irradiation reflector is disposed behind the projection lens.

  Each type of the “light source” and the “second light source” is not particularly limited, and for example, a light emitting element such as a light emitting diode, a light source bulb, or the like can be adopted.

  The “shade” is not particularly limited as long as it blocks a part of the light from the light source toward the projection lens in order to form a cut-off line of the low beam light distribution pattern. .

  The “overhead marker irradiating reflector” is disposed between the shade and the projection lens, but the specific position thereof is not particularly limited. In addition, the “overhead marker illuminating reflector” may be configured to reflect the light emitted from the light source as the light for forming the light distribution pattern for overhead marker illuminating, or from the second light source. It may be configured to reflect incident light.

  The “second light source” is arranged behind the projection lens, but the specific position is particularly limited as long as the light can be incident on the overhead sign irradiation reflector. is not.

  The vehicular lamp according to the present invention is configured as a projector-type lamp having a shade, and a light distribution pattern for overhead marker irradiation is formed above the low beam light distribution pattern between the shade and the projection lens. The overhead sign irradiating reflector for reflecting the light to the projection lens is arranged, but a second light source for making the light incident on the overhead sign irradiating reflector is arranged behind the projection lens. Therefore, the following effects can be obtained.

  That is, the light emitted from the second light source is reflected by the reflector for overhead sign irradiation and irradiated forward through the projection lens, thereby forming a high beam additional light distribution pattern (that is, a high beam light distribution pattern). A light distribution pattern formed in addition to the low beam light distribution pattern).

  Further, the light emitted from the light source is reflected by the reflector for overhead sign irradiation and is incident on the projection lens, or the light emitted from the second light source having low output is reflected by the reflector for overhead sign irradiation and is reflected on the projection lens. By making it enter, the light distribution pattern for overhead marker irradiation can be formed.

  Then, the light emitted from the second light source is reflected by the reflector for overhead sign irradiation, thereby forming the light distribution pattern for overhead sign irradiation and the light distribution pattern for high beam without making the shade movable. can do.

  As described above, according to the present invention, in the projector-type vehicular lamp provided with the shade, the light distribution pattern for overhead sign irradiation and the light distribution pattern for high beam can be formed with a simple lamp configuration.

  In the above configuration, the second light source is configured to be selectively lit in the low output mode and the high output mode, and then is emitted from the second light source that is lit in the low output mode to reflect the overhead sign irradiation. A light distribution pattern for overhead sign irradiation is formed by the light reflected by the light, and an additional light distribution pattern for high beam is formed by the light emitted from the second light source lit in the high output mode and reflected by the reflector for overhead sign irradiation. With this configuration, it is possible to form an overhead marker illumination light distribution pattern and a high beam light distribution pattern simply by additionally arranging an overhead marker illumination reflector and a second light source.

  In the above configuration, a sub-reflector is disposed between the projection lens and the second light source, and the sub-reflector that reflects the emitted light from the light source toward the overhead marker irradiating reflector is disposed. In addition, a light distribution pattern for overhead sign irradiation is formed by the light sequentially reflected by the reflector for overhead sign irradiation, and an additional light distribution pattern for high beam is formed by the light emitted from the second light source and reflected by the reflector for overhead sign irradiation. With the configuration, the following operational effects can be obtained.

  In other words, the second light source is configured to form an additional light distribution pattern for the high beam by forming the additional light distribution pattern for the high beam instead of the light distribution pattern for the overhead sign irradiation by the light from the second light source reflected by the reflector for the overhead sign irradiation. The light source can be used as a dedicated light source for forming the light pattern, thereby increasing the degree of freedom in arranging the second light source. Accordingly, the high beam additional light distribution pattern can be formed with high positional accuracy by turning on the second light source, whereby the high beam light distribution pattern can be excellent in distance visibility.

  In the above configuration, if the second light source is configured by a laser light source, the high beam additional light distribution pattern can be easily formed as a bright light distribution pattern, and thus the high beam light distribution pattern is excellent in distance visibility. Can be.

  In the above configuration, if the configuration includes a main reflector that reflects the light emitted from the light source toward the projection lens, the light source of the light source can be compared with a configuration in which the light emitted from the light source directly reaches the projection lens. The degree of freedom of arrangement can be increased, whereby the degree of freedom of arrangement of the overhead sign irradiation reflector and the second light source can also be increased.

The front view which shows the vehicle lamp which concerns on one Embodiment of this invention II-II sectional view of FIG. It is a figure which shows the light distribution pattern formed by the irradiation light from the said vehicle lamp, Comprising: (a) is a figure which shows the light distribution pattern for low beams, (b) is a figure which shows the light distribution pattern for high beams The same figure as FIG. 2 which shows the 1st modification of the said embodiment. The same figure as FIG. 3 which shows the effect | action of the said 1st modification. The same figure as FIG. 2 which shows the 2nd modification of the said embodiment. The same figure as FIG. 2 which shows the 3rd modification of the said embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a front view showing a vehicular lamp 10 according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line II-II.

  In these figures, the direction indicated by X is “front” as a lamp (“forward” as a vehicle), the direction indicated by Y is “right”, and the direction indicated by Z is “upward”. . The same applies to other figures.

  As shown in these drawings, the vehicular lamp 10 according to the present embodiment is a projector-type lamp unit that is used as a part of a headlamp, and includes a projection lens 12 and the projection lens 12. The light source 14 disposed behind the rear focal point F, the main reflector 16 that reflects the light emitted from the light source 14 toward the projection lens 12, and the light source 14 and the projection lens 12 are disposed. The shade 20 is provided.

  Further, the vehicular lamp 10 includes an overhead sign irradiation reflector 22 disposed between the projection lens 12 and the shade 20, a second light source 24 disposed on the rear side of the projection lens 12, and the second light source 24. The sub-reflector 26 is disposed between the light source 24 and the projection lens 12.

  The projection lens 12 is a plano-convex aspheric lens having a convex front surface and a flat rear surface, and a light source image formed on the rear focal plane, which is a focal plane including the rear focal point F, as a reverse image in front of the lamp. It is designed to project onto a virtual vertical screen. The projection lens 12 is supported by a lens holder 32 at an outer peripheral flange portion, and the lens holder 32 is supported by a base member 34.

  The light source 14 is a white light emitting diode, and has a light emitting surface 14a having a horizontally long rectangular shape. The light source 14 is supported by the base member 34 with its light emitting surface 14a facing upward in the vicinity below the optical axis Ax.

  The light source 14 is configured to be lit in a low beam lighting mode and a high beam lighting mode.

  The main reflector 16 is supported by the base member 34 at the lower edge of the main reflector 16 so as to cover the light source 14 from above. The reflection surface 16a of the main reflector 16 has a long axis that is substantially coaxial with the optical axis Ax of the projection lens 12 and has a substantially elliptical curved surface with the light emission center of the light source 14 as the first focal point. The eccentricity is set to gradually increase from the vertical cross section toward the horizontal cross section. As a result, the main reflector 16 converges the light from the light source 14 to a point located slightly forward of the rear focal point F in the vertical section, and moves the convergence position to the front in the horizontal section. It has become.

  The shade 20 has an upward reflecting surface 20a that reflects a part of the light from the light source 14 reflected by the main reflector 16 and reflects the shielded light upward. Then, the light reflected by the upward reflecting surface 20a is incident on the projection lens 12, and is emitted from the projection lens 12 as downward light.

  The upward reflecting surface 20a of the shade 20 is configured with a horizontal plane including the optical axis Ax on the left side located on the left side (right side in the front view of the lamp) with respect to the optical axis Ax, and is located on the right side with respect to the optical axis Ax. The right region is configured by a horizontal plane that is one step lower than the left region through a short slope. The front edge of the upward reflecting surface 20a extends to the left and right sides so as to pass through the rear focal point F.

  The shade 20 is formed so that its front end extends downward, and is supported by the base member 34.

  The overhead marker irradiating reflector 22 is supported by the front end of the shade 20 in a state of being disposed below the optical axis Ax in the vicinity of the front of the shade 20.

  The overhead sign irradiating reflector 22 has a planar reflecting surface 22a extending in the vehicle width direction in a state of being disposed obliquely upward toward the front. The reflecting surface 22a extends at a downward inclination angle of about 30 to 60 degrees (for example, about 45 degrees) from the position obliquely lower and forward to the rear focal point F in the vertical plane including the optical axis Ax. It is formed as follows.

  Thus, the overhead sign irradiating reflector 22 does not block the light from the light source 14 reflected by the main reflector 16, and the light from the light source 14 reflected by the sub-reflector 26 and the light emitted from the second light source 24. The incident light is reflected toward the projection lens 12.

  The sub-reflector 26 is formed integrally with the main reflector 16 in a state where the sub-reflector 26 is disposed in the vicinity of the front end face 16b of the main reflector 16 and substantially above the rear focal point F.

  The sub-reflector 26 is composed of an elliptical curved surface having the light emission center of the light source 14 as a first focal point and the center position of the reflecting surface 22a of the overhead sign irradiation reflector 22 as a second focal point.

  The 2nd light source 24 is arrange | positioned between the main reflector 16 and the sub reflector 26, and is comprised so that it may light in high beam lighting mode.

  The second light source 24 is a white light emitting diode and has a light emitting surface 24a having a horizontally long rectangular shape. The second light source 24 is supported by the main reflector 16 and the sub-reflector 26 via the substrate 28 with the light emitting surface 24a directed toward the reflecting surface 22a of the overhead sign irradiation reflector 22.

  At this time, the main reflector 16 is formed such that its front end face 16b extends in a direction tilted backward with respect to a vertical plane orthogonal to the optical axis Ax, and the second light source 24 has a light emitting surface 24a thereof. The main reflector 16 is disposed so as to be located near the upper end of the front end face 16b. The front end surface 116b of the main reflector 16 causes the light emitted from the second light source 24 to be incident on the reflecting surface 22a of the overhead marker irradiating reflector 22, but hardly enters the upward reflecting surface 20a of the shade 20. I have to.

  FIG. 3 is a perspective view showing a light distribution pattern formed on a virtual vertical screen disposed at a position 25 m ahead of the lamp by the light emitted forward from the vehicular lamp 10. ) Is a low beam distribution pattern PL, and FIG. 5B is a diagram showing a high beam distribution pattern PH1.

  A low beam light distribution pattern PL shown in FIG. 5A is a left light distribution light beam distribution pattern, and has upper and lower cut-off lines CL1 and CL2 at its upper edge. The cut-off lines CL1 and CL2 extend in the horizontal direction at the left and right steps with the VV line passing through the HV, which is a vanishing point in the front direction of the lamp, in the vertical direction, and are on the right side of the VV line. The opposite lane side portion is formed as a lower cut-off line CL1, and the own lane side portion on the left side of the VV line is formed as an upper cut-off line CL2 that rises from the lower cut-off line CL1 through an inclined portion. Is formed.

  This light distribution pattern for low beam PL is obtained by projecting the light source image of the light source 14 formed on the rear focal plane of the projection lens 12 by the light from the light source 14 reflected by the main reflector 16 on the virtual vertical screen. The cut-off lines CL1 and CL2 are formed as reverse projected images of the front edge of the upward reflecting surface 20a of the shade 20.

  In this low beam distribution pattern PL, the elbow point E, which is the intersection of the lower cut-off line CL1 and the VV line, is located about 0.5 to 0.6 ° below HV.

  In the low beam light distribution pattern PL, a high luminous intensity region HZL is formed so as to surround the elbow point E. The light reflected by the upward reflecting surface 20a of the shade 20 greatly contributes to the formation of the high luminous intensity region HZL.

  As shown in FIG. 5A, overhead sign irradiation for irradiating overhead signs OHS installed on the road ahead of the vehicle at a position distant upward from the cut-off lines CL1 and CL2 of the low beam light distribution pattern PL. A light distribution pattern PA1 is additionally formed.

  The overhead marker illumination light distribution pattern PA1 is a light distribution pattern formed by light emitted from the light source 14 and sequentially reflected by the sub reflector 24 and the overhead marker illumination reflector 22.

  In this overhead sign irradiation light distribution pattern PA1, the light source 14 has a horizontally-long rectangular light emitting surface, the sub reflector 26 is disposed substantially directly above the rear focal point F, and the overhead sign Since the irradiating reflector 22 is disposed below the optical axis Ax in the vicinity of the front of the shade 20, it is located on both the left and right sides with the VV line as the center at a position away from the HV by a predetermined amount. It is formed as a horizontally elongated light distribution pattern. The overhead marker OHS extending in the horizontal direction is efficiently irradiated by the overhead marker illumination light distribution pattern PA1.

  The high beam light distribution pattern PH1 shown in FIG. 4B is formed as a combined light distribution pattern of the low beam light distribution pattern PL, the overhead marker illumination light distribution pattern PA1, and the high beam additional light distribution pattern PB1.

  The high beam additional light distribution pattern PB1 is a light distribution pattern formed by light emitted from the second light source 24 and reflected by the overhead marker irradiation reflector 22.

  This high beam additional light distribution pattern PB1 is formed as a horizontally long light distribution pattern that extends to the left and right sides around a point located slightly above HV.

  At this time, the high beam additional light distribution pattern PB1 is formed so as to cover the overhead marker irradiation light distribution pattern PA1, and at the lower end thereof, partially overlaps with the low beam light distribution pattern PL. Is formed.

  This high beam additional light distribution pattern PB1 is formed as a horizontally long light distribution pattern because the second light source 24 has a horizontally long light emitting surface 24a, and the overhead sign irradiation reflector 22 is a horizontally long reflective surface. This is because of having 22a. The center position of the high beam additional light distribution pattern PB1 is displaced downward from the center position of the overhead marker illumination light distribution pattern PA1. This is because the second light source 24 is behind the sub-reflector 26. It is because it is located on the side.

  The high beam additional light distribution pattern PB1 is superimposed on the low beam light distribution pattern PL and the overhead marker illumination light distribution pattern PA1, so that the high beam light distribution pattern PH1 is centered around HV. It is formed as a light distribution pattern to ensure far visibility.

  Next, the effect of this embodiment is demonstrated.

  The vehicular lamp 10 according to the present embodiment is configured as a projector-type lamp having a shade 20, and overhead sign irradiation is performed above the low beam light distribution pattern PL between the shade 20 and the projection lens 12. An overhead marker irradiating reflector 22 that reflects light for forming the light distribution pattern PA1 toward the projection lens 12 is disposed, but on the rear side of the projection lens 12, the overhead marker irradiating reflector 22 is disposed. Since the second light source 24 for allowing light to enter is disposed, the following operational effects can be obtained.

  That is, the high beam additional light distribution pattern PB1 can be formed by reflecting the light emitted from the second light source 24 with the overhead marker irradiating reflector 22 and irradiating it forward through the projection lens 12.

  Further, the light emitted from the light source 14 is reflected by the overhead marker irradiation reflector 22 and is incident on the projection lens 12, whereby the overhead marker irradiation light distribution pattern PA1 can be formed.

  The light emitted from the second light source 24 is reflected by the overhead marker illumination reflector 22 in this way, so that the overhead marker illumination light distribution pattern PA1 and the high beam distribution can be obtained without making the shade 20 movable. The optical pattern PH1 can be formed.

  Thus, according to the present embodiment, in the projector-type vehicle lamp 10 provided with the shade 20, the overhead sign irradiation light distribution pattern PA1 and the high beam light distribution pattern PH1 can be formed with a simple lamp configuration. .

  At this time, in the present embodiment, a sub-reflector 26 that reflects the emitted light from the light source 14 toward the overhead marker irradiation reflector 22 is disposed between the projection lens 12 and the second light source 24. Above, the light distribution pattern PA1 for overhead sign irradiation is formed by the light emitted from the light source 14 and sequentially reflected by the sub-reflector 26 and the reflector 22 for overhead sign irradiation, and is emitted from the second light source 24 and used for overhead sign irradiation. Since the high beam additional light distribution pattern PB1 is formed by the light reflected by the reflector 22, the following effects can be obtained.

  That is, the second light source 24 is configured such that the light from the second light source 24 reflected by the overhead marker irradiation reflector 22 forms the high beam additional light distribution pattern PB1 instead of the overhead marker irradiation light distribution pattern PA1. Can be used as a dedicated light source for forming the high beam additional light distribution pattern PB1, thereby increasing the degree of freedom in the arrangement of the second light source 24. Therefore, by turning on the second light source 24, the high beam additional light distribution pattern PB1 can be formed with high positional accuracy, whereby the high beam light distribution pattern PH1 can be excellent in distance visibility.

  Moreover, since the vehicular lamp 10 according to the present embodiment includes the main reflector 16 that reflects the light emitted from the light source 14 toward the projection lens 12, the light emitted from the light source 14 is projected onto the projection lens. Compared to the case where the light source 14 is directly reached, the degree of freedom in the arrangement of the light source 14 can be increased, whereby the degree of freedom in the arrangement of the overhead marker irradiation reflector 22 and the second light source 24 can also be increased. .

  Furthermore, in the present embodiment, the front end surface 16b of the main reflector 16 causes the light emitted from the second light source 24 to be incident on the reflection surface 22a of the overhead sign irradiation reflector 22, while the shade 20 has an upward reflection surface 20a. Since the configuration is such that almost no incidence occurs, the generation of stray light can be effectively suppressed.

  In the above-described embodiment, the reflection surface 22a of the overhead marker irradiation reflector 22 has been described as being formed in a flat shape, but a configuration formed in a curved shape, a configuration including a plurality of reflection elements, or the like is employed. It is also possible.

  In the above-described embodiment, the vehicular lamp 10 is configured to form the left light distribution low beam light distribution pattern PL, but is configured to form the right light distribution low beam light distribution pattern. Even in the case where the light distribution pattern having only the horizontal cut-off line is formed at the upper end portion, the same effect can be obtained by adopting the same configuration as that of the above embodiment. .

  Next, a modification of the above embodiment will be described.

  First, a first modification of the above embodiment will be described.

  FIG. 4 is a view similar to FIG. 2 showing the vehicular lamp 110 according to this modification.

  As shown in the figure, the basic configuration of this modification is the same as that of the above embodiment, but the arrangement and function of the second light source 124 are different from those of the above embodiment, and this modification In the example, the sub reflector 26 is not arranged as in the above embodiment.

  That is, the second light source 124 of the present modification is disposed at a position ahead of the second light source 24 of the above embodiment (specifically, a position almost directly above the rear focal point F), and has a low output. The light source can be selectively lit in the mode and the high output mode.

  The second light source 124 is a white light emitting diode, like the second light source 24 of the above-described embodiment, and has a horizontally elongated light emitting surface 124a. The light emitting surface 124a of the reflector 22 for overhead sign irradiation is used. It is supported by the main reflector 116 through the substrate 128 in a state directed toward the reflecting surface 22a.

  The main reflector 116 of this modification has a reflective surface 116a similar to the main reflector 16 of the above embodiment, but its front end surface 116b is displaced more forward than in the above embodiment. The front end surface 116b allows the light emitted from the second light source 124 to enter the reflecting surface 22a of the overhead marker irradiating reflector 22, but hardly enters the upward reflecting surface 20a of the shade 20.

  FIG. 5 is a view similar to FIG. 3 showing a light distribution pattern formed by light emitted forward from the vehicular lamp 110.

  As shown in FIG. 5A, also in this modification, the low beam light distribution pattern PL is the same as in the above embodiment, and is separated upward from the cut-off lines CL1 and CL2 of the low beam light distribution pattern PL. In addition, a light distribution pattern PA2 for overhead marker irradiation is additionally formed.

  The overhead marker illumination light distribution pattern PA2 is a light distribution pattern formed by light emitted from the second light source 24 that is lit in the low output mode and reflected by the overhead marker illumination reflector 22.

  The high beam light distribution pattern PH2 shown in FIG. 6B is formed as a combined light distribution pattern with the low beam light distribution pattern PL and the high beam additional light distribution pattern PB2.

  The high beam additional light distribution pattern PB <b> 2 is a light distribution pattern formed by light emitted from the second light source 24 lit in the high output mode and reflected by the overhead marker irradiation reflector 22.

  In this modified example, the light distribution pattern for overhead marker irradiation and the additional light distribution pattern for high beam PB2 are selectively formed by turning on the second light source 24. Therefore, the light distribution pattern for overhead marker irradiation PA2 is formed as a light distribution pattern having a slightly smaller left-right diffusion angle than the overhead marker illumination light distribution pattern PA1 at a position slightly below the overhead marker illumination light distribution pattern PA1 of the above embodiment. The high beam additional light distribution pattern PB2 is a light distribution pattern in which the overhead marker irradiation light distribution pattern PA2 is enlarged and brightened as it is at a position slightly above the high beam additional light distribution pattern PB1 of the above embodiment. It is formed as.

  By adopting the configuration of this modified example, the overhead marker illumination light distribution pattern PA2 and the high beam light distribution pattern PH2 can be formed simply by additionally arranging the overhead marker illumination reflector 22 and the second light source 124. .

  Next, a second modification of the above embodiment will be described.

  FIG. 6 is a view similar to FIG. 2 showing a vehicular lamp 210 according to this modification.

  As shown in the figure, the basic configuration of this modification is the same as that of the above embodiment, but the configuration of the second light source 224 is different from that of the above embodiment.

  That is, the second light source 224 of the present modification is a laser light source, and the light emitted from the laser diode 224a is condensed on the light emitting unit 224c made of a phosphor by the condenser lens 224b, and the white light is diffused from the light emitting unit 224c. The light is emitted as light. At this time, the emitted light from the second light source 224 has the highest intensity of emitted light from the center position of the light emitting unit 224c.

  In the second light source 224, the light emitting portion 224c has a circular surface shape. The surface of the second light source 224 faces the reflecting surface 22a of the overhead sign irradiation reflector 22, and the main reflector 16 and the sub-reflector 26 are arranged. It is supported.

  In this modification, the high beam additional light distribution pattern similar to the high beam additional light distribution pattern PB1 of the above embodiment is brightened by the light emitted from the second light source 224 and reflected by the overhead marker irradiation reflector 22. It can be formed as a light pattern. As a result, the high beam light distribution pattern can be made more excellent in far visibility than the high beam light distribution pattern PH1 of the above embodiment.

  Next, a third modification of the above embodiment will be described.

  FIG. 7 is a view similar to FIG. 2 showing a vehicular lamp 310 according to this modification.

  As shown in the figure, the basic configuration of this modification is the same as that of the above embodiment, but the point that the light emitted from the light source 14 is directly incident on the projection lens 12 is described above. It differs from the case of embodiment, and the structure of the 2nd light source 324, the shade 320, and the base member 334 differs from the case of the said embodiment.

  That is, in the present modification, the base member is disposed in a state where the light source 14 is disposed with its light emitting surface 14a facing forward at a position on the optical axis Ax on the rear side of the rear focal point F of the projection lens 12. 334. For this reason, in this modification, it is not the structure by which the main reflector 16 and the sub reflector 26 are arrange | positioned like the said embodiment.

  The shade 320 of this modification is formed in a standing wall shape, and is supported by the base member 334 at the lower end thereof. The overhead marker irradiation reflector 22 is supported by the shade 320.

  The upper end surface 320a of the shade 320 is configured by a horizontal plane including the optical axis Ax in the left region located on the left side of the optical axis Ax, like the upward reflecting surface 20a of the shade 20 of the above embodiment. The right region located on the right side is configured by a horizontal plane that is one step lower than the left region through a short slope. The front edge of the upper end surface 320a extends to the left and right sides so as to pass through the rear focal point F.

  The second light source 324 of the present modified example is configured by a laser light source similar to the second light source 224 of the second modified example, but is positioned in front of the second light source 224 (specifically, the rear focal point). At a position just above F). The second light source 324 is supported by the base member 334 with the surface of the light emitting portion 324c facing the reflecting surface 22a of the overhead marker irradiating reflector 22.

  The second light source 324 is configured to be selectively lit in the low output mode and the high output mode, and forms a light distribution pattern for overhead sign irradiation by lighting in the low output mode and in the high output mode. The additional light distribution pattern for high beam is formed by lighting up.

  By adopting the configuration of the present modification, the main reflector 16 and the sub-reflector 26 as in the above embodiment are not required, and the overhead marker irradiation reflector 22 and the second light source 324 are additionally disposed, A light distribution pattern for label irradiation and a light distribution pattern for high beam can be formed.

  Therefore, the number of parts can be reduced by adopting the configuration of this modification.

  In addition, the numerical value shown as a specification in the said embodiment and its modification is only an example, and of course, you may set these to a different value suitably.

  The invention of the present application is not limited to the configuration described in the above-described embodiment and its modifications, and a configuration with various other changes can be adopted.

10, 110, 210, 310 Vehicle lamp 12 Projection lens 14 Light source 14a, 24a, 124a Light emitting surface 16, 116 Main reflector 16a, 22a, 116a Reflecting surface 16b, 116b Front end surface 20, 320 Shade 20a Upward reflecting surface 22 Overhead sign Reflector for irradiation 24, 124, 224, 324 Second light source 26 Sub reflector 28, 128 Substrate 32 Lens holder 34, 334 Base member 224a Laser diode 224b Condensing lens 224c, 324c Light emitting part 320a Upper end surface Ax Optical axis CL1 Lower cut off line CL2 Upper cut-off line E Elbow point F Rear focal point HZL High intensity region OHS Overhead labeling PA1, PA2 Overhead labeling light distribution pattern PB1, PB2 High beam additional light distribution pattern PH1, P Light distribution pattern for 2 high beam light distribution pattern PL low-beam

Claims (5)

A projection lens and a light source disposed on the rear side of the projection lens, and configured to form a low beam light distribution pattern by irradiating light emitted from the light source forward through the projection lens. Vehicle lamps
Between the projection lens and the light source, a shade for shielding a part of the light from the light source toward the projection lens in order to form a cut-off line of the low beam light distribution pattern is disposed,
Between the shade and the projection lens, an overhead marker irradiation reflector for reflecting light for forming an overhead marker illumination light distribution pattern toward the projection lens is disposed above the low beam distribution pattern. And
A vehicular lamp, characterized in that a second light source for allowing light to enter the overhead marker irradiating reflector is disposed behind the projection lens. The second light source is configured to be selectively lit in a low output mode and a high output mode,
The light emitted from the second light source that is lit in the low output mode and reflected by the reflector for irradiating the overhead sign forms the light distribution pattern for irradiating the overhead sign and the first light that is lit in the high output mode. 2. The vehicular lamp according to claim 1, wherein a high beam additional light distribution pattern is formed by light emitted from two light sources and reflected by the overhead sign irradiation reflector. Between the projection lens and the second light source, a sub-reflector that reflects the emitted light from the light source toward the overhead marker irradiation reflector is disposed,
The light emitted from the light source and sequentially reflected by the sub-reflector and the reflector for overhead marker illumination forms the light distribution pattern for overhead marker illumination, and is emitted from the second light source and reflected by the reflector for overhead marker illumination. The vehicular lamp according to claim 1, wherein the vehicular lamp is configured to form a high beam additional light distribution pattern by the reflected light.   The vehicular lamp according to any one of claims 1 to 3, wherein the second light source is a laser light source.   The vehicular lamp according to any one of claims 1 to 4, further comprising a main reflector that reflects light emitted from the light source toward the projection lens.

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