• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A vehicle lamp includes a mask (40) movable between a light lock position and a light lock release position. A light emitting surface (20a) of a light emitting element (20) faces a side in a lateral direction and an upper end edge (20a1) of the light emitting surface ( 20a) extends in a front-to-back direction. A reflective surface (30a) of a reflector (30) includes a first reflective zone (30Aa) and a second reflective zone (30Ba). A low beam light distribution pattern having a horizontal cut line and an oblique cut line is formed by a reflected light beam from the first reflective area (30Aa) when the mask (40) is in the position of blocking light, and a pattern of light distribution of road light is formed by the reflected light beams from the first reflective zone (30Aa) and the second reflective zone (30Ba) when the mask (40) is in the light lock release position.
    公开号:FR3026822A1
    申请号:FR1559420
    申请日:2015-10-05
    公开日:2016-04-08
    发明作者:Toshiyuki Kinouchi
    申请人:Koito Manufacturing Co Ltd；
    IPC主号:
    专利说明:

    [0001] The invention of this application relates to a vehicle lamp configured to selectively achieve a low beam light and road lighting.  [0002] Conventionally, a vehicle lamp configured to selectively perform a low-beam illumination and a high beam illumination by reflecting a beam of light coming from a light-emitting element forwards. using a reflector is available.  [0003] Japanese Patent No. 4335621 describes such a vehicle lamp in which a passing light light distribution model having horizontal and oblique cut lines is constituted by the illumination at low beam.  In the vehicle lamp described in Japanese Patent No. 4335621, the horizontal cut-off line and the oblique cut-off line are formed by switching on separate light-emitting elements at the time of illumination at low beam. , and another light-emitting element is further illuminated at the time of illumination in high beam, and the cost of the vehicle lamp can therefore be increased in a manner corresponding to the element of additional light emission.  The invention of this application provides a vehicle lamp which is configured to selectively perform a low-beam light and road-traffic lighting by reflecting a beam of light coming from an element towards the front. light emitting using a reflector, and is capable of forming required light distribution patterns at a low cost.  An aspect of the invention relates to a vehicle lamp configured to selectively provide low beam illumination and high beam illumination, comprising: a light emitting element; a reflector which reflects forwards a beam of light emitted from the light-emitting element; and a moving mask between a light blocking position in which part of the emitted light beam moving from the light emitting element to the reflector is blocked and a light blocking release position in which the blocking of light is released.  The light emitting element is arranged such that a light emitting surface of the light emitting element faces one side in a lateral direction and one upper end edge of the surface. light emission extends in a forward-backward direction.  A reflective surface of the reflector includes a first reflective area on which the light beam emitted from the light emitting element is incident, and a second reflective area on which the emitted light beam from the transmitting element. light is not incidental when the mask is in the light blocking position.  A dipped beam light distribution pattern having a horizontal cut line and an oblique cut line is formed by a reflected light beam from the first reflective area when the mask is in the light lock position, and a Road fire light distribution pattern is formed by the reflected light beam from the first reflective area and a reflected light beam from the second reflective area when the mask is in the light blocking release position.  As shown in the configuration described above, the vehicle lamp according to the invention forms the passing light light distribution model having the horizontal and oblique cut lines thanks to the reflected light beam from the first reflective zone when the mask for blocking a portion of the emitted light moving from the light emitting element to the reflector is in the light blocking position, and forms the fire light distribution pattern by the reflected light beams from the first and second reflective areas as the mask moves to the light-blocking release position.  It is therefore possible to selectively perform low beam illumination and high beam illumination using the single light emitting element.  By minimizing the number of light emitting elements required in this way, it is possible to achieve a reduction in the cost of the lamp.  Thus, according to the invention, in the vehicle lamp configured to selectively perform a low beam illumination and a traffic light illumination by reflecting the beam of light of the element of light forward. Light emission using the reflector, it is possible to form the required light distribution patterns at a low cost.  The first reflective zone may comprise a first secondary reflecting zone disposed in a position which intersects a horizontal plane comprising the upper end edge of the light emission surface, and a second secondary reflecting zone disposed in a position which cutting an inclined plane comprising the upper end edge of the light-emitting surface and inclined downwardly with respect to the horizontal plane.  In this case, the horizontal cutoff line may be formed by a reflected light beam from the first secondary reflective zone and the oblique cutoff line may be formed by a reflected light beam from the second secondary reflective zone.  When the light emitting surface of the light emitting element is viewed from the position of the first secondary reflective zone, its upper end edge is identified as a bright-dark net separation line, and therefore, by forming the horizontal break line using the first secondary reflective zone, it is possible to allow the horizontal break line to have the clean break line.  Similarly, when the light emitting surface of the light emitting element is viewed from the position of the second secondary reflective zone, its upper end edge is identified as a sharp bright-dark separation line, and thus, by forming the oblique cutoff line using the second secondary reflective zone, it is possible to allow the oblique cutoff line to have the clean cutoff line.  The first reflective zone may comprise a third secondary reflective zone adjacent to the first secondary reflective zone in a position above the first secondary reflective zone, and a fourth secondary reflective zone adjacent to the first secondary reflective zone and the third secondary reflective zone. secondary reflective zone on the other side in the lateral direction.  The light-emitting surface of the light-emitting element may have an outer shape that is longer in the front-to-back direction than in a high-low direction.  With the configuration described above, it is possible to ensure the sufficient length of the upper end edge of the light emitting element and it thus becomes possible to form sharply horizontal and oblique cut lines. .  A position of a line of separation between the first reflective zone and the second reflective zone may be established in a position in which a plane comprising the upper end edge of the light emitting surface and an edge lateral end of said lateral side of an upper end surface of the mask in the light blocking position intersects the reflecting surface.  The characteristics, advantages, and technical and industrial importance of examples of embodiments of the invention will be described below with reference to the accompanying drawings, in which like references designate identical elements, and wherein: Fig. 1 is a front view showing a vehicle lamp according to an embodiment of the invention of the application; Figure 2 is a sectional view along the line II-II of Figure 1; Figure 3 is a detailed view of a portion III of Figure 1; Figure 4 is a view in the direction of an arrow IV of Figure 3; and Figs. 5A and 5B are perspective views showing light distribution patterns formed by a vehicle lamp illumination light beam, of which Fig. 5A shows a dipped beam light distribution pattern and the Figure 5B shows a model of distribution of traffic light.  An embodiment of the invention of the application will be described below using the drawings.  [0017] Figure 1 is a front view showing a vehicle lamp 10 according to the embodiment of the invention of the application.  Figure 2 is a sectional view along II-II of Figure 1.  As shown in these drawings, the vehicle lamp 10 according to the embodiment is a headlamp disposed at a front left end portion of a vehicle, and is configured to selectively low beam lighting and high beam lighting.  For the vehicle lamp 10, a direction indicated by X in Fig. 2 is a "forward direction" (the "forward direction" for the vehicle), and a direction indicated by Y in Fig. 2 is a "direction" left "perpendicular to the" forward direction "(the" left direction "for the vehicle but a" right direction "when the lamp is seen from the front).  In the vehicle lamp 10, a light emitting element 20, a reflector 30 which reflects forwards a beam of light emitted from the light emitting element 20, and a mask 40 for blocking a portion of the emitted light beam moving from the light emitting element 20 to the reflector 30 are disposed in a lamp chamber consisting of a lamp body 12 and a transparent light transmission cover 14 fixed on an opening portion of a front end of the lamp body 12.  The mask 40 is configured as a moving mask in a up-and-down direction between a light blocking position indicated by a solid line in FIG. 1 and a light blocking release position indicated by a dashed line in FIG. below the light blocking position.  The particular configuration of the mask 40 will be described later.  The vehicle lamp 10 according to the embodiment forms a passing light light distribution pattern having a horizontal cut line and an oblique cut line when the mask 40 is in the light blocking position, and forms a pattern of traffic light distribution when the mask 40 moves to the light-blocking release position.  Figure 3 is a detailed view of a part III of Figure 1.  FIG. 4 is a view in the direction of an arrow IV of FIG.  As shown in these drawings, the light emitting element 20 is a white light emitting diode, and has a rectangular light emitting surface 20a that extends in a forward-to-back direction.  In the light emitting surface 20a, the long side has a length greater than twice (for example about four times) a short side length.  More specifically, the light emitting surface 20a is configured such that four light emitting chips each having a square light emission surface whose side is about 1mm are aligned side by side on a light emitting surface 20a. substrate 20b.  The light emitting element 20 is supported by a radiator 22 at a left end portion in the lamp chamber (a "right end portion" when the lamp is seen from the forward) such that the light emitting surface 20a faces an inner side (i.e. a right side) in the width direction of the vehicle.  The radiator 22 is supported by the reflector 30.  The mask 40 is disposed in a position relatively close to the light-emitting element 20 on the inner side in the direction of the width of the vehicle.  The mask 40 is supported by a movement mechanism 42 disposed beneath the mask 40.  The displacement mechanism 42 is supported by the reflector 30.  The driving mechanism 42 causes the mask 40 to move in the up-down direction between the light blocking position and the light blocking release position, as indicated by arrows. in Figures 1, 3, and 4.  The mask 40 is formed to have an L-shaped section and extend in the front-rear direction.  A horizontal portion of the mask 40 extends from a lower end position of a vertical portion of the mask 40 to an outer side in the width direction of the vehicle (i.e., a left side) .  When the mask 40 is in the light blocking position, an upper end surface 40a of the vertical portion is positioned slightly above a lower end edge of the light emitting surface 20a. of the light-emitting element 20, and the horizontal portion is positioned slightly below the light-emitting element 20.  The mask 40 extends to front and rear sides from the front and rear end edges of the light-emitting surface 20a of the light-emitting element 20 to some extent.  Vertical portions equal in height to the upright portion above are formed at the front of the end and rear portions of the mask 40.  With this, when the mask 40 is in the light blocking position, a portion of the emitted light beam moving from the light emitting element 20 to the reflector 30 is more reliably blocked by the mask 40. .  The reflector 30 is shaped to extend forwardly from a rearward position of the light-emitting element 20 to the inner side in the width direction of the vehicle, and has an oblong rectangular outer shape when the lamp is viewed from the front.  A reflective surface 30a of the reflector 30 is constituted by a first reflecting zone 30Aa and a second reflecting zone 30Ba positioned below the first reflecting zone 30Aa.  The first reflective area 30Aa is the area on which the light beam emitted from the light emitting element 20 is incident even when the mask 40 is in the light blocking position, and the second reflective area 30Ba is the area on which the light beam emitted from the light emitting element 20 is not incident when the mask 40 is in the light blocking position and on which the beam of light emitted from the light emitting light emitting element 20 is incident when the mask 40 moves to the light blocking release position.  The position of a dividing line B between the first reflecting zone 30Aa and the second reflecting zone 30Ba is set in a position das a plane comprising an upper end edge 20a1 of the light emitting surface 20a. and a lateral end edge on the inside side in the vehicle width direction of the upper end surface 40a of the mask 40 in the light blocking position intersects the reflecting surface 30a, as indicated by a line mixed in Figures 1 and 3.  More specifically, the dividing line B extends in a downwardly inclined direction of about 20 to 25 ° (for example 22 °) with respect to a horizontal plane from the upper end edge 20a1 of the outer surface. light emission 20a when the lamp is seen from the front.  With this, all of a light beam reaching the reflecting surface 30a of the light emitting element 20 when the mask 40 is in the light blocking position is reflected at the first reflective area 30Aa.  The first reflective zone 30Aa comprises a first secondary reflective zone 30Aal intended to form the horizontal cutoff line, and a second secondary reflective zone 30Aa2 intended to form the oblique cutoff line.  The first and second secondary reflective zones 30Aal and 30Aa2 are arranged to be adjacent to each other in the up-down direction with the first secondary reflective zone 30Aal positioned above the second secondary reflective zone. 30Aa2.  The first and second secondary reflective zones 30Aal and 30Aa2 are formed in a range from a position spaced from the mask 40 to the inner side in the width direction of the vehicle to some extent to an end edge position of the reflective surface 30a towards the inner side in the direction of the width of the vehicle.  The first secondary reflective zone 30Aal is disposed in a position which intersects a horizontal plane P1 (indicated by dotted lines in FIGS. 1 and 3) comprising the upper end edge 20a1 of the light emitting surface 20a of the light emitting element 20.  An upper end edge of the first secondary reflective zone 30Aal is formed to extend in a horizontal direction towards the inside in the width direction of the vehicle in a position above the transmission surface of the vehicle. 20a, and its lower end edge is formed to extend in the horizontal direction towards the inner side in the width direction of the vehicle in a position below the light emitting surface 20a.  The first secondary reflective zone 30Aal is constituted by a plurality of reflecting elements 30As1 which are separated from one another in a vertical strip pattern when the lamp is viewed from the front.  At the different reflecting elements 30As1, the light beam emitted from the light emitting element 20 is reflected forwardly as a beam of light which is slightly deflected downwards and diffused and / or deflected in the direction horizontal.  The second secondary reflecting zone 30Aa2 is disposed in a position which intersects an inclined plane P2 (indicated by dashed lines in FIGS. 1 and 3) which comprises the upper end edge 20a1 of the transmission surface of FIG. light 20a of the light emitting element 20 and is inclined downwards by 15 ° with respect to the horizontal plane.  An upper end edge of the second secondary reflective zone 30Aa2 substantially corresponds to the lower end edge of the first secondary reflective zone 30Aal, and a lower end edge of the second secondary reflective zone 30Aa2 extends at an angle of downward tilt which is slightly larger than that of the separation line B in a position slightly below the separation line B.  The second secondary reflecting zone 30Aa2 is constituted by a plurality of reflecting elements 30As2 which are separated from each other in a vertical oblique band pattern in a direction perpendicular to the inclined plane P2 when the lamp is seen from forward.  At the different reflecting elements 30As2, the light beam emitted from the light emitting element 20 is reflected forwardly as a beam of light which is slightly deflected downwards and diffused and / or deflected in one direction. along the inclined plane P2.  The first reflective zone 30Aa comprises a third secondary reflective zone 30Aa3 adjacent to the first secondary reflective zone 30Aal in a position above the first secondary reflective zone 30Aal, and a fourth secondary reflective zone 30Aa4 adjacent to the first and third zones 30Aal and 30Aa3 secondary reflective reflectors on the left side in addition to the first and second secondary reflective areas 30Aal and 30Aa2.  A lower end edge of the fourth secondary reflective zone 30Aa4 is formed to extend in the horizontal direction from a lower end position of a left end edge of the second secondary reflective zone 30Aa2 to outer side in the direction of the width of the vehicle.  The third secondary reflecting zone 30Aa3 is constituted by a plurality of reflecting elements 30As3 which are separated from each other in a vertical strip pattern when the lamp is viewed from the front.  At the different reflecting elements 30As3, the light beam emitted from the light emitting element 20 is reflected forward as a beam of light which is deflected downward to some extent and diffused in the horizontal direction relatively strongly.  The fourth secondary reflecting zone 30Aa4 is constituted by a plurality of reflecting elements 30As4 which are separated from each other in a vertical strip pattern when the lamp is viewed from the front.  At the various reflecting elements 30As4, the light beam emitted from the light emitting element 20 is reflected forward as a beam of light which is deflected downward to some extent and scattered strongly in the direction horizontal.  On the other hand, as described above, the second reflective area 30Ba is the area on which the light beam emitted from the light emitting element 20 is incident when the mask 40 is moves to the light blocking release position, and most of the second reflective area 30Ba is constituted by a plurality of reflective elements 30Es which are separated from each other in a vertical strip pattern when the lamp is seen from the front.  At the different reflecting elements 30Bs, the light beam emitted from the light emitting element 20 is reflected forwardly as a beam of light which is slightly scattered in the horizontal direction.  Figures 5A and 5B are perspective views showing light distribution patterns formed on a virtual vertical screen disposed 25 m forward of the lamp, the beam of light projected forward since the vehicle lamp 10.  The light distribution pattern shown in Fig. 5A is the dipped beam light distribution pattern, and the light distribution pattern shown in Fig. 55 is the road light light distribution pattern.  A light beam distribution pattern PL shown in FIG. 5A is the light distribution pattern of the left light distribution, and has cut lines CL1 and CL2 at its end edge. higher.  With regard to the clipping lines CL1 and CL2, a part of the opposite side of the right side of a line VV which vertically passes a vanishing point HV in the front direction of the lamp is formed as a horizontal cut-off line CL1, and a part of the traffic lane side to the left of the line VV is formed as oblique cut-off line CL2.  In the passing light light distribution model PL, a point of inflection E as the point of intersection between the horizontal cut line CL1 and the oblique cut-off line CL2 is positioned approximately 0.5 to 0, 6 ° below the HV vanishing point.  The PL dipped beam light distribution pattern is formed as a combination light distribution pattern of four PLa, PLb, PLc, and PLd light distribution patterns formed by a reflected light beam from the light distribution pattern. first reflective zone 30Aa.  The light distribution pattern PLa is the light distribution pattern formed by the reflected light beam from the first secondary reflective zone 30Aal.  The PLa light distribution model is the oblong light distribution model which extends in the horizontal direction towards the right side of the VV line from a position on the left side of the VV line, and is formed as the bright light distribution pattern having a narrow width in the up-down direction.  The light distribution pattern PLa forms the horizontal net cut line CL1 at its upper end edge.  The light distribution pattern PLa is formed as the light distribution pattern having the horizontal line of sharp cut CL1 at the upper end edge of the fact that the first secondary reflecting zone 30Aal is disposed in the position which crosses the horizontal plane P1 comprising the upper end edge 20a1 of the light emitting surface 20a.  The light distribution pattern PLa is formed as the bright light distribution pattern having the narrow width in the up-down direction because the light-emitting element 20 has the light-emitting surface 20a which is long in the front-to-back direction, and the first secondary reflective zone 30Aal is positioned in a direction close to the direction of the normal to the light-emitting surface 20a.  The light distribution model PLb is the light distribution model formed by the reflected light beam from the second secondary reflecting zone 30Aa2.  The light distribution model PLb is the oblong light distribution model that extends obliquely upward in a fan shape from a position slightly on the right side of the line VV to the left side of the VV line, and is formed as a model of bright light distribution.  The light distribution pattern PLb forms the net oblique cutoff line CL2 which is inclined at an angle of inclination of 15 ° with respect to the horizontal plane at its upper end edge.  The light distribution pattern PLb is formed as the light distribution pattern having the net horizontal cutoff line CL2 at the upper end edge because the second secondary reflective area 30Aa2 is disposed in the position which cut the inclined plane P2 comprising the upper end edge 20a1 of the light emitting surface 20a.  The light distribution pattern PLb is formed as the bright light distribution pattern because the light emitting element 20 has the light emitting surface 20a which is long in the front-to-back direction and the second secondary reflecting zone 30Aa2 is positioned in a direction relatively close to the direction of the normal to the light emitting surface 20a.  The light distribution pattern PLc is the light distribution pattern formed by the reflected light beam from the third secondary reflective zone 30Aa3, and is formed as the oblong light distribution pattern that spreads relatively widely. to the left and right with the VV line positioned centrally in a position below the horizontal cut line CL1.  The light distribution model PLc is formed as the light distribution model having the width in the up-down direction greater than that of the light distribution model PLa because the third secondary reflecting zone 30Aa3 is positioned. in a direction inclined to some extent with respect to the direction of the normal to the light-emitting surface 20a which extends in the front-to-back direction.  The light distribution pattern PLd is the light distribution pattern formed by the reflected light beam from the fourth secondary reflecting zone 30Aa4, and is formed as the oblong light distribution pattern which spreads widely towards left and right with the VV line positioned centrally in a position below the horizontal cut line CL1.  The light distribution pattern PLd is formed as the light distribution pattern having the width in the up-down direction greater than that of the light distribution pattern PLc because the fourth secondary reflecting zone 30Aa4 comprises a a zone positioned in an inclined direction with an angle greater than that of the third secondary reflecting zone 30Aa3 with respect to the direction of the normal to the light-emitting surface 20a which extends in the front-to-back direction.  A road fire light distribution model PH shown in FIG. 5B is formed as a light distribution model in which a light distribution model PHa is superimposed on the four PLd light distribution models PLd constituting the passing light light distribution model PL.  The light distribution pattern PHa is the light distribution pattern formed by the reflected light beam from the second reflective zone 30Ba, and is formed as the slightly oblong light distribution pattern with the HV vanishing point. positioned at its center.  The light distribution pattern PHa is formed as the bright light distribution pattern having a dot shape.  The light distribution pattern PHa is formed at the HV vanishing point position so as to be superimposed on the four light distribution models PLa to PLd, and the road light light distribution model. PH thus becomes the model of excellent light distribution in the long-range visibility in which an area in the vicinity of the HV vanishing point is bright.  The operation and effect of this embodiment will then be described.  The vehicle lamp 10 according to the embodiment forms the PL light passing light distribution pattern having the horizontal and oblique cut lines CL1 and CL2 through the reflected light beam from the first reflective zone 30Aa when the mask 40 for blocking a portion of the emitted light beam moving from the light emitting element 20 to the reflector 30 is in the light blocking position, and forms the fire light distribution pattern of PH route through the reflected light beams from the first and second reflective areas 30Aa and 30Ba when the mask 40 moves into the light blocking release position.  It is therefore possible to selectively perform the low beam illumination and the high beam illumination using the single light emitting element 20.  By minimizing the number of light emitting elements required in this way, it is possible to achieve a reduction in the cost of the lamp.  Thus, according to the embodiment, in the vehicle lamp 10 configured to selectively perform the low beam illumination and the high beam illumination by reflecting forward the beam of light coming from the light emitting element 20 using the reflector 30, it is possible to form the required light distribution patterns at a low cost.  In addition, in the embodiment, the first reflecting zone 30Aa comprises the first secondary reflecting zone 30Aal disposed in the position intersecting the horizontal plane P1 comprising the upper end edge 20a1 of the light emitting surface. 20a of the light emitting element 20, and the second secondary reflecting zone 30Aa2 disposed in the position which intersects the inclined plane 22 comprising the upper end edge 20a1 and inclined downwardly with respect to the horizontal plane, and the horizontal cut line CL1 is formed by the reflected light beam from the first secondary reflective area 30Aal and the oblique cut line CL2 is formed by the reflected light beam from the second secondary reflective area 30Aa2.  With this, it is possible to obtain the following operation and effect.  When the light emitting surface 20a of the light emitting element 20 is viewed from the position of the first secondary reflective zone 30Aal, the upper end edge 20a1 is identified as a sharp separation line light-dark, and therefore, by forming the horizontal cut line CL1 using the first secondary reflective area 30Aal, it is possible to allow the horizontal break line CL1 to have the clean cut line.  Similarly, when the light emitting surface 20a of the light emitting element 20 is viewed from the position of the second secondary reflective zone 30Aa2, the upper end edge 20a1 is identified as the line clear-dark net separation, and therefore, by forming the oblique cutoff line CL2 using the second secondary reflective area 30Aa2, it is possible to allow the oblique cutoff line CL2 to have the clean cutoff line.  In addition, in the embodiment, the light-emitting element 20 has the outer shape having the light-emitting surface which is longer in the front-to-back direction than in the up-down direction. .  It is therefore possible to set the sufficient length of the upper end edge 20a1 and, with this, it becomes possible to form the horizontal and oblique cut lines CL1 and CL2 more clearly.  In the above embodiment, the description has been made with the configuration in which the mask 40 is formed so as to have an L-shaped section and extend in the front-to-back direction, but It is also possible to adopt a configuration in which the mask 40 has a shape other than the above form.  In addition, in the above embodiment, the description has been made with the configuration in which the driving mechanism 42 causes the mask 40 to move in the up-down direction, but it is also possible to adopt a configuration in which a motion other than the above movement (for example, a movement in the front-to-back direction or a rotation) is performed.  In the above embodiment, the description has been made with the vehicle lamp 10 configured to form the cross-beam light distribution pattern PL of the left light distribution but, adopting a configuration in FIG. wherein the vehicle lamp 10 according to the embodiment is inverted in a left and right direction, it is also possible to configure the vehicle lamp 10 so that the light distribution pattern of the passing light of the light distribution right is formed.  It should be noted that the numerical values shown as characteristics of the vehicle lamp in the above embodiment are only examples and that these numerical values can be set to different values when required.  In addition, the invention is not limited to the configuration described in the above embodiment, and the embodiment of the invention may adopt a configuration in which other modifications are made.  As described above, the vehicle lamp according to the invention is configured to selectively perform low beam illumination and high beam illumination, and comprises: a transmission element of light; a reflector which reflects forwards a beam of light emitted from the light-emitting element; and a moving mask between a light blocking position in which part of the emitted light beam moving from the light emitting element to the reflector is blocked and a light blocking release position in which the blocking of light is released.  The light emitting element is arranged such that a light emitting surface of the light emitting element faces one side in a lateral direction and one upper end edge of the surface. light emission extends in a forward-backward direction.  A reflective surface of the reflector includes a first reflective area on which the light beam emitted from the light emitting element is incident, and a second reflective area on which the emitted light beam from the transmitting element. light is not incidental when the mask is in the light blocking position.  A dipped beam light distribution pattern having a horizontal cut line and an oblique cut line is formed by a reflected light beam from the first reflective area when the mask is in the light lock position, and a Road fire light distribution pattern is formed by the reflected light beam from the first reflective area and a reflected light beam from the second reflective area when the mask is in the light blocking release position.  The type of light emitting element mentioned above is not particularly limited, and it is possible to use, for example, a light emitting diode and a laser diode.  The specific positional relationship between the first reflective zone and the second reflective zone mentioned above is not particularly limited.  The first reflective zone mentioned above is configured to form the dipped beam light distribution pattern having the horizontal and oblique cutoff lines by reflecting the emitted light beam from the light emitting element. and a specific reflective surface shape thereof is not particularly limited.  The mask mentioned above is configured to move between the light blocking position and the light blocking release position, and a specific mode of displacement is not particularly limited.
    权利要求:
    Claims (5)
    [0001]
    REVENDICATIONS1. A vehicle lamp configured to selectively provide low beam illumination and high beam illumination, comprising: a light emitting element (20); a reflector (30) which reflects forwards a beam of light emitted from the light-emitting element (20); and a mask (40) movable between a light blocking position in which part of the emitted light beam moving from the light emitting element (20) to the reflector (30) is blocked and a position of light-blocking release in which the light-blocking is released, the vehicle lamp being characterized in that: the light-emitting element (20) is arranged such that a light-emitting surface ( 20a) of the light-emitting element (20) faces one side in a lateral direction and an upper end edge (20a1) of the light-emitting surface (20a) extends in one direction before behind ; a reflective surface (30a) of the reflector (30) comprises a first reflective zone (30Aa) on which the light beam emitted from the light emitting element (20) is incident, and a second reflective zone (30Ba) wherein the light beam emitted from the light emitting element (20) is not incident when the mask (40) is in the light blocking position; anda dipped beam light distribution pattern (PL) having a horizontal cutoff line (CL1) and an oblique cutoff line (CL2) is formed by a reflected light beam from the first reflective area (30Aa) when the mask (40) is in the light blocking position, and a traffic light light distribution pattern (PH) is formed by the reflected light beam from the first reflective area (30Aa) and a reflected light beam from the second reflective zone (30Ba) when the mask (40) is in the light blocking release position.
    [0002]
    The vehicle lamp according to claim 1, wherein: the first reflecting zone (30Aa) comprises a first secondary reflecting zone (30Aal) disposed in a position which intersects a horizontal plane (Pl) comprising the upper end edge (20a1). ) of the light emitting surface (20a), and a second secondary reflecting zone (30Aa2) disposed in a position which intersects an inclined plane (P2) comprising the upper end edge (20a1) of the emitting surface of light (20a) and inclined downwardly with respect to the horizontal plane (P1); and the horizontal cut-off line (CL1) is formed by a reflected light beam from the first secondary reflective zone (30Aal) and the oblique cut-off line (CL2) is formed by a reflected light beam from the second reflective zone secondary (30Aa2).
    [0003]
    The vehicle lamp according to claim 2, wherein the first reflective zone (30Aa) comprises a third secondary reflective zone (30Aa3) adjacent to the first secondary reflective zone (30Aal) in a position above the first secondary reflective zone ( 30Aal), and a fourth secondary reflective zone (30Aa4) adjacent to the first secondary reflective zone (30Aal) and the third secondary reflective zone (30Aa3) on the other side in the lateral direction.
    [0004]
    A vehicle lamp according to any one of claims 1 to 3, wherein the light-emitting surface (20a) of the light-emitting element (20) has an outer shape which is longer in the front-back direction only in a high-low direction.
    [0005]
    A vehicle lamp as claimed in any one of claims 1 to 4, wherein a position of a dividing line (B) between the first reflecting zone (30Aa) and the second reflecting zone (30Ba) is set in a position wherein a plane comprising the upper end edge (20a1) of the light-emitting surface (20a) and a lateral end edge, on the side in the lateral direction, of an upper end surface ( 40a) of the mask (40) in the light blocking position intersects the reflecting surface (30a).
    类似技术:
    公开号 | 公开日 | 专利标题
    FR3024762A1|2016-02-12|VEHICLE FIRE
    FR3047940B1|2019-11-01|VEHICLE FIRE
    FR3026822A1|2016-04-08|VEHICLE LAMP
    FR3005718A1|2014-11-21|VEHICLE FIRE
    EP1843085B1|2010-06-16|Lighting module for the headlights of an automobile and headlight comprising such a module
    FR3017188A1|2015-08-07|LAMP FOR VEHICLE
    FR2860280A1|2005-04-01|VEHICLE HEADLIGHT WITH PHOTOEMISSIVE ELEMENT LAMPS
    FR2853951A1|2004-10-22|VEHICLE HEADLIGHT FOR CROSSING BEAM
    FR2853046A1|2004-10-01|HEADLIGHT FOR A PHOTOEMISSIVE PAD
    FR2868510A1|2005-10-07|LIGHT EMITTING LIGHT FOR A VEHICLE
    FR2844032A1|2004-03-05|Motor vehicle headlamp with low-beam operation, uses lamp units containing one or more light-emitting diodes with some units providing direct lighting, some controlled-direction reflected lighting and others with reflected diffuse lighting
    FR2902492A1|2007-12-21|LAMP FOR VEHICLE
    EP3002504A2|2016-04-06|Lighting module for lighting and/or signalling of a motor vehicle
    FR2858045A1|2005-01-28|Lamp unit for vehicle headlight, has stopper unit whose upper edge is placed at proximity of optical axis such that lower part of light emitted by light emitting diode is stopped
    FR2863038A1|2005-06-03|VEHICLE HEADLIGHT HAVING THREE REFLECTORS
    FR2890151A1|2007-03-02|Headlamp for vehicle, has reflecting face of addition reflector divided into multiple reflecting portions, where surface shape of each reflecting portion is formed into ellipsoid of revolution in vertical direction
    FR3026463A1|2016-04-01|LAMP FOR VEHICLE
    EP2525142A2|2012-11-21|Optical unit, in particular for a motor vehicle
    FR2943799A1|2010-10-01|"LENS FOR LIGHTING MODULE FOR MOTOR VEHICLE".
    FR2918155A1|2009-01-02|LAMP FOR VEHICLE.
    EP2846081B1|2020-08-19|Lighting and signalling device of a vehicle
    WO2014191530A1|2014-12-04|Lighting module for motor vehicle headlight, headlight equipped with such modules, and headlight assembly
    EP2436968B1|2014-03-05|Light-emitting device for an automobile headlight
    EP2101105A1|2009-09-16|Lighting device for an automobile
    FR3092646A1|2020-08-14|Vehicle lamp
    同族专利:
    公开号 | 公开日
    US20160097505A1|2016-04-07|
    DE102015218845A1|2016-04-07|
    CN105508956B|2018-03-27|
    JP2016076389A|2016-05-12|
    US9719650B2|2017-08-01|
    CN105508956A|2016-04-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPH04335621A|1991-05-13|1992-11-24|Canon Inc|Camera|
    JP4015340B2|2000-02-21|2007-11-28|株式会社小糸製作所|Vehicle headlamp|
    JP4335621B2|2003-04-25|2009-09-30|スタンレー電気株式会社|Vehicle lighting|
    JP5033530B2|2007-07-27|2012-09-26|スタンレー電気株式会社|Light source unit for vehicle lamp|
    JP5321048B2|2008-12-26|2013-10-23|市光工業株式会社|Vehicle headlamp|
    JP5141580B2|2009-01-30|2013-02-13|市光工業株式会社|Vehicle headlamp|
    JP5953665B2|2011-07-26|2016-07-20|市光工業株式会社|Vehicle headlamp|
    JP5842435B2|2011-07-26|2016-01-13|市光工業株式会社|Vehicle headlamp|
    JP6073735B2|2013-04-12|2017-02-01|株式会社小糸製作所|Vehicle lamp|
    JP6235791B2|2013-05-17|2017-11-22|株式会社小糸製作所|Vehicle lighting|
    JP6235237B2|2013-05-17|2017-11-22|株式会社小糸製作所|Vehicle lighting|
    EP3050750A4|2013-09-26|2017-07-05|Koito Manufacturing Co., Ltd.|Vehicular lighting fixture control system|JP2017103189A|2015-12-04|2017-06-08|パナソニックＩｐマネジメント株式会社|Headlamp and movable body|
    JP6857490B2|2016-12-12|2021-04-14|株式会社小糸製作所|Vehicle headlights|
    JP6884042B2|2017-06-07|2021-06-09|株式会社小糸製作所|Vehicle lighting|
    US11009209B2|2019-10-08|2021-05-18|Valeo Vision|Lighting adjustment aid|
    法律状态:
    2016-09-19| PLFP| Fee payment|Year of fee payment: 2 |
    2017-09-18| PLFP| Fee payment|Year of fee payment: 3 |
    2018-02-23| PLSC| Search report ready|Effective date: 20180223 |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2014206172A|JP2016076389A|2014-10-07|2014-10-07|Vehicular lighting fixture|
    [返回顶部]