JP2017037806A - Road surface drawing lighting fixture unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a road surface drawing lighting fixture unit having a wide scanning range, drawing diversified graphics and characters, displaying more information on vehicle approach and the like on a road or the like, and notifying an oncoming vehicle, a pedestrian and the like of the information.SOLUTION: Light source modules (4, 7) comprising a plurality of light source units (2, 3) in which a plurality of LED light-emitting elements (2a, 3a) configured to be independently lighted up or put off are arranged; optical members (16, 17) including reflection surfaces (16a, 17a) reflecting light groups by the plurality of LED light-emitting elements (2a, 3a) emitted from the light source units (2, 3) to be arranged in a longitudinal direction or a vertical direction of a road and arranging reflection light groups (r11 to r15, r21 to r25) of the light source units (2, 3) in a width direction of the road; and a scanning mechanism 6 actuating the optical members (16, 17) to oscillate the reflection light groups of the light source units in the width direction of the road are provided in a road surface drawing lighting fixture unit 1.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a road surface drawing lamp unit for drawing a wide variety of figures on a road surface for notifying an oncoming vehicle or a pedestrian of the road of vehicle approach information and the like.

  In Patent Document 1, light emitted from a pair of LEDs arranged as shown in [0077] of the specification of Patent Document 1 and FIGS. 15 and 16 is reflected by a rotating reflector and transmitted through a projection lens. There is disclosed an optical unit that draws, that is, displays a horizontally long light distribution pattern on a road surface or a structure on a road by scanning left and right reflected light.

WO2011 / 129105

  In addition to the narrow scanning range, the optical unit of Patent Document 1 is limited to the shape of the light distribution pattern that can be formed. In a road surface drawing lamp unit that displays a light distribution pattern, graphics, etc. on the road surface, etc. by irradiating light from the light emitting element, in order to inform more information on the approach of the vehicle to oncoming vehicles and pedestrians on the road It is desirable that a wide variety of figures and characters can be drawn by providing a wide scanning range.

  In view of the above problems, the present application has a wide scanning range, and irradiates a wide variety of figures and characters with light from the light emitting element, thereby displaying more information on the approach of the vehicle on the road surface of the road. A road surface drawing lamp unit capable of notifying an oncoming vehicle or a pedestrian is provided.

  In a road surface drawing lamp unit, a light source module including a plurality of light source units arranged with a plurality of LED light emitting elements configured to be independently lit or extinguished, and light from the plurality of LED light emitting elements emitted from the light source unit An optical member having a reflecting surface formed so that the groups are reflected so as to be arranged in the front-rear direction or the up-down direction of the road, and the reflected light groups of the reflected light sources are arranged in the width direction of the road; And a scanning mechanism that swings the reflected light group of each light source unit in the width direction of the road.

  (Operation) A plurality of bar-like drawing patterns extending in the left-right direction are arranged in the width direction of the road, and are further arranged in a plurality in the front-rear direction or the up-down direction of the road. Each drawing pattern is drawn so as to have various lengths by turning on and off the light source.

  In the road surface drawing lamp unit, the light source module is constituted by a first light source module for road surface drawing and a second light source module that forms a light distribution pattern for high beam whose shape can be changed.

  (Operation) The first light source module for drawing the road surface displays various characters and figures related to the vehicle approach information etc. at various positions on the road surface and the like, and there are various second light source modules that form a high beam light distribution pattern. Various positions such as road surfaces are illuminated by light distribution patterns of various shapes.

  In the road surface drawing lamp unit, each of the plurality of light source units includes a road surface light emitting LED light emitting element and an LED light emitting element that forms a light distribution pattern for high beam whose shape can be changed.

  (Operation) Among the light source modules, the LED light emitting element for road surface drawing displays a wide variety of characters and figures related to vehicle approach information at various positions on the road surface, etc., and forms a high beam light distribution pattern. However, the light distribution patterns of various shapes illuminate various positions such as the road surface, and one light source module forms both a road surface drawing figure and the like and a high beam light distribution pattern.

  Further, in the road surface drawing lamp unit, the optical member is configured as a rotating reflector having a reflecting surface formed to be rotatable around a rotation center axis, and the reflecting surface is within a horizontal cross section of the rotating reflector. The angle of the reflecting surface with respect to the incident axis of the incident light on the reflecting surface is changed in the rotation direction of the reflecting surface, and the incident light on the reflecting surface is respectively emitted in the radial direction from the rotation central axis of the reflecting surface. It was made to inject into the position which shifted | deviated.

  (Operation) The light emitted from the LED light emitting element of each light source module and reflected by the reflecting surface of the rotating reflector changes the angle between the optical axis and the reflecting surface in the horizontal section of the reflecting surface as the reflecting surface rotates. As a result, a rod-like drawing pattern that swings back and forth on the left and right of the road and extends to the left and right is drawn on the road surface. The light emitted from the plurality of LED light emitting elements of each light source module is reflected at a position shifted in the radial direction from the rotation central axis of the reflecting surface, so that a bar-like figure pattern extending in the left-right direction is formed in the front-rear direction of the road or Draw several in the vertical direction. A graphic pattern group in which a plurality of bar-shaped graphic patterns are arranged in the front-rear direction or the vertical direction of the road is arranged on the left and right as many as the number of light source modules. Each bar-shaped figure pattern is drawn so as to have various lengths by turning on and off the light source.

  The scanning range by a plurality of light source modules extends in the front-rear direction or the up-down direction of the road, and at least a part of the plurality of LED light emitting elements is turned on and off at an arbitrary timing, so that various figures or characters can be displayed on the road. By drawing on the road surface or the like, it is possible to inform oncoming vehicles, pedestrians, and the like of more information regarding the approach of the vehicle.

  Further, according to the road surface drawing lamp unit, the positions and the number of the LED light emitting elements to be arranged are diversified, so that various figures related to information such as vehicle approaching are drawn on the road surface or the like so that pedestrians on the road In addition to informing the driver of the oncoming vehicle, appropriate illumination can be performed by irradiating various positions with light distribution patterns for various shapes.

  In addition, according to the road surface drawing lamp unit, the light emitting module can be miniaturized, and various figures related to information such as vehicle approach can be drawn on the road surface to notify pedestrians on the road and drivers of oncoming vehicles. It is possible to perform appropriate illumination by irradiating a wide variety of positions with a light distribution pattern for illumination having a wide variety of shapes.

The perspective view which looked at the road surface drawing lamp unit of 1st Example from the diagonally right front. The perspective view which looked at the lamp unit for road surface drawing of 1st Example from the diagonally upper right. The perspective view which looked at the lamp unit for road surface drawing of 1st Example substantially from the front. (A) The front view of the 1st and 2nd light source module of 1st Example which has several light source modules. (B) The front view of the light source module provided in the light source module of 2nd Example. Explanatory drawing which looked at the optical path in the road surface drawing lamp unit of 1st Example from the right side. Explanatory drawing which looked at the optical path in the lamp unit for road surface drawing of 1st Example from upper direction. Explanatory drawing regarding the high beam light distribution pattern by the road surface drawing lamp unit of 1st Example, and the graphic pattern for road surface drawing. The block diagram which shows the control apparatus of the road surface drawing lamp unit of 1st Example. Explanatory drawing which looked at the optical path in the lamp unit for road surface drawing of 2nd Example from upper direction. Explanatory drawing which looked at the optical path in the lamp unit for road surface drawing of 2nd Example from the right side. Explanatory drawing regarding the high beam light distribution pattern by the road surface drawing lamp unit of 2nd Example, and the graphic pattern for road surface drawing.

  Hereinafter, a preferred embodiment of the present invention will be described with reference to FIGS. In each figure, the direction of the road viewed from each part of the road surface drawing lamp unit and the driver of the vehicle on which the road surface drawing light unit is mounted (upward: downward: leftward: rightward: forward: backward = Up: Lo: Le : Ri: Fr: Re).

  First, a first embodiment of a road surface drawing lamp unit mounted on a vehicle or the like will be described with reference to FIGS. The road surface drawing in the present invention refers to displaying characters or figures on a road surface of a road or a structure on the road by scanning light emitted from a light emitting element to the left and right. The road surface drawing lamp unit 1 of the first embodiment is a first road surface drawing device that displays characters, symbols, etc. on the road surface or structures on the road to alert the driver of the vehicle or a pedestrian on the road. A light source module 4 and a second light source module 7 for forming a high beam light distribution pattern for forming various shapes of high beam light distribution patterns at various positions are provided. Specifically, the road surface drawing lamp unit 1 shown in FIGS. 1 to 3 includes a first light source module 4 for road surface drawing, a first bracket 5, and a scanning device having a plurality of light source parts (2, 3). It has the mechanism 6, the 2nd light source module 7, the 2nd bracket 8, the translucent lens 9, and the base member 10 which form a high beam light distribution pattern.

  In FIG. 4, the first light source module 4 and the second light source module 7 will be described. The first light source module 4 includes a first light source unit 2 in which a plurality of blue LED light emitting elements 2a are arranged in a vertical row, and a second light source unit 3 in which a plurality of blue LED light emitting elements 3a are arranged in a vertical row. The connector 11 for connecting a power feeding cable (not shown) is mounted on the substrate 12. The 1st light source part 2 and the 2nd light source part 3 are arranged on right and left, and the LED light emitting element 2a is arrange | positioned in the position shifted up and down with respect to the LED light emitting element 3a.

  Each LED light emitting element (2a, 3a) is provided with a metal terminal portion (2b, 3b) for each LED light emitting element, and the connector 11 is provided with a metal terminal portion 11a, and a plurality of terminal portions. (2b, 3b) are electrically connected to the plurality of terminal portions 11a by metal conductive patterns 13, respectively. The plurality of LED light emitting elements (2a, 3a) are supplied with power by a power supply cable (not shown) attached to the connector 11.

  In addition, the second light source module 7 includes a first light source unit 14 in which a plurality of white LED light emitting elements 14 a are arranged in an upper and lower row instead of the first light source unit 2, and the second light source unit 3. Instead of having a second light source unit 15 in which a plurality of white LED light emitting elements 15a are arranged in a vertical row, it has a common form with the first light source module 4, and the plurality of LED light emitting elements (14a, 15a) are: Power is supplied by a power supply cable (not shown) attached to the connector 11 of the second light source module 7. To do. In addition, although several LED light emitting elements (2a, 3a, 14a, 15a) are each arrange | positioned in the upper and lower one line as an example, the number of several LED light emitting elements is not restricted to five. In addition, although two sets of the plurality of light source units (2, 3) of the light source module (4, 7) are provided as an example, three or more sets may be provided as long as the number of light source units of each light source module is plural. Good. Moreover, you may employ | adopt a laser diode instead of the LED light emitting element (2a, 3a, 14a, 15a) for the 1st and 2nd light source modules (4, 7) of a module.

  The base member 10 shown in FIGS. 1 to 3 includes a main body 10a and a lens bracket 10b made of metal, resin, or the like. The first light source module 4 has a main body of the base member 10 through a first bracket 5 formed of metal or resin, and the second light source module 7 has a main body of the base member 10 through a second bracket 8 formed of metal or resin. It is fixed to a part (part not shown) of the part 10a. The second bracket 8 is provided with condensing reflectors (19, 20) each having a reflection surface provided inside a hole penetrating the front and back of the second bracket 8. The condensing reflector 19 is disposed so as to face the plurality of LED light emitting elements 14 a of the first light source unit 14, and the condensing reflector 20 is respectively opposed to the plurality of LED light emitting elements 15 a of the second light source unit 15. Placed in. The second light source module 7 is disposed with the opening of the connector 11 facing downward, and the first light source module 4 is disposed above the second light source module 7 with the opening of the connector 11 facing upward.

  The scanning mechanism 6 shown in FIGS. 1 to 3 includes a pair of rotating reflectors (16, 17) having the same shape as optical members and a rotating portion 18, and a part of the main body portion 10a of the base member 10 ( It is fixed to a part (not shown). Inside the rotation unit 18, there is a rotation shaft that rotates about a rotation axis O <b> 1 arranged horizontally, and a servo motor 39 (drive) that is a drive source controlled by the rotation control unit 36 of FIG. 7A. The source is not limited to a servo motor as long as it can be controlled by rotation, and a pair of rotating reflectors (16, 17) are attached to the rotating shaft of the servo motor 39, and the servo motor 39 It is rotated around the rotation axis O1 by driving.

  The pair of rotating reflectors (16, 17) shown in FIGS. 1 to 3 are provided with reflecting surfaces (16a, 17a) formed by silver deposition or the like as shown in FIG. The reflecting surfaces (16a, 17a) rotate the rotating reflectors (16, 17) to alternately turn the light source parts (2, 3) of the first light source module 4 and the condensing reflectors (19, 19) of the second bracket 8. 20). In addition, a transparent or translucent transparent lens 9 that is convex forward and attached to the lens bracket 10b of the base member 10 is disposed in front of the reflective surfaces (16a, 17a).

  Each rotating reflector (16, 17) has a reflection angle (16a, 17a) with a reflection angle of the reflection surface (16a, 17a) with respect to the incident axis of light from the light source unit (2, 3) or the condensing reflector (19, 20). 17a) is formed so as to continuously increase or decrease in the rotation direction.

  As shown in FIGS. 5 and 6, the emitted light R1 from the light source part (2, 3) of the first light source module 4 that displays a road surface drawing graphic or the like on the road or the like is either of the rotating reflectors (16, 17). The light is reflected toward the translucent lens 9 by the reflecting surfaces (16a, 17a). Also, the emitted light R2 (the one-dot chain line portion in the figure) from the light source part (14, 15) of the second light source module 7 that forms the high beam light distribution pattern is collected from the rear surface side of the second bracket 8 with a condensing reflector (19 , 20) are respectively reflected and reflected toward the rotating reflectors (16, 17), and further reflected by the reflecting surfaces (16a, 17a) to intersect the outgoing light R1 in the vicinity of the rear focal point O2 of the translucent lens 9. Thus, the light is re-reflected toward the translucent lens 9 and emitted to the front of the translucent lens 9.

  In that case, the light of the five light emitting elements 2a which radiate | emits from the light source part 2, and injects into any of the reflective surfaces (16a, 17a) of a rotation reflector (16, 17) is each rotation of a reflective surface (16a, 17a). The light is incident on a position shifted in the radial direction from the moving central axis O1, and irradiates five rows of light groups on the road surface in front of the translucent lens 9 (LED light emitting elements 3a, 14a, 15a of the light source units 3, 14, 15). The same applies to the above).

  As a result, among the 5 rows and 2 sets of light groups (r11 to r15) by the first light source module 4 emitted in front of the translucent lens 9 irradiated to the road surface, 3 rows and 2 sets of light groups (r13 to r15) from the front. ) Is irradiated from the back so as to overlap the light groups of 3 rows and 2 sets (r21 to r23) among the 5 rows and 2 sets of light groups (r21 to r25) by the second light source module 7. In addition, the light groups (r11 to r15) in five rows and two sets by the one light source module 4 are arranged in front of the translucent lens 9 as the first light source module 4 is arranged at a position farther upward from the second light source module 7. The light is irradiated to a closer position such as a road, and the farther a position such as a road ahead of the translucent lens 9 is irradiated as the first light source module 4 is placed closer to the second light source module 7.

  In this state, when the rotating reflector (16, 17) is rotated by the servo motor of the rotating unit 18 shown in FIGS. 1 to 3, the reflecting surface of the rotating reflector (16, 17) with respect to the incident axis of the incident light within the horizontal section. Since the angles of (16a, 17a) continuously increase or decrease continuously in the direction of rotation of the reflecting surface, they are alternately reflected by the reflecting surfaces (16a, 17a) as shown in FIG. The light emitted in front of the lens 9 is irradiated onto the road surface so that the optical axis repeatedly swings at high speed from one side to the other side (from right to left in this embodiment).

  As a result, as shown in FIG. 7, the light from the second light source module 7 is a vertical imaginary that extends in the width direction of the road in front of the vehicle (not shown in the figure) that is a white bar-shaped figure (P21 to P25) extending in the width direction of the road. By irradiating 2 sets of 5 rows onto the plane A1, a high beam light distribution pattern is formed on the road in the traveling direction of the vehicle or on a structure in the vicinity of the road, and the light from the first light source module 4 is emitted in the width direction of the road. By illuminating the vertical virtual plane A1 with two sets of stick marks (P11 to P15) made of blue or the like extending to the vertical virtual plane A1, the vehicle driver or the like is alerted to structures on the road or in the vicinity of the road. Display figures and so on. Of the 5 rows and 2 sets of bar-shaped marks displayed by the first light source module 4, 3 rows and 2 sets of bar-shaped marks (P 13 to P 15) are 5 rows and 2 sets of bar shapes displayed by the second light source module 7. Of the marks, it is displayed so as to overlap the three rows and two sets of bar-shaped marks (P21 to P23), so that it is superimposed on the road illuminated by the high beam light distribution pattern, etc. Display shapes.

  In addition, a group of bar-shaped marks in groups of five rows by the first and second light source modules (4, 7) is used to control a plurality of LED light emitting elements (2a, 3a, 14a, 15a) at predetermined timings by a control device described later. By turning it on and off independently, it is displayed independently at different lengths or divided and displayed.

  The plurality of LED light emitting elements (2a, 3a, 14a, 15a) of the first and second light source modules (4, 7) are turned on by the control device 31 of FIG. 7A described later mounted on the road surface drawing lamp unit 1, respectively. The bar-like mark (bar-like figure) drawn on the road or the like by each LED light-emitting element is controlled independently, and is drawn to a length based on the control or divided and drawn. Each bar-shaped mark group drawn on the road or the like by the first and second light source modules (4, 7) is drawn with a predetermined length, or by combining each bar-shaped mark with a predetermined shape drawn in a divided manner, A mark having a predetermined shape and a light distribution pattern for high beam that prompt the driver of the vehicle to be alerted are displayed at a predetermined position on the road or the like.

  Next, the control device 31 will be described with reference to FIG. 7A. The control device 31 includes a lamp ECU (electronic control device) 32, a ROM 33, and a RAM 34. The lamp ECU 31 includes a light source control unit 35 and a rotation control unit 36. Various control programs are recorded in the ROM 33, and the lamp ECU 32 executes the control program recorded in the ROM 33 in the RAM 34 and generates various control signals.

  The light source control unit 35 is connected to the LED light emitting elements (2a, 3a) of the first and second light source units (2, 3) via the first lighting control circuit 37 of the first light source module 4, respectively. The LED light emitting elements (14a, 15a) of the first and second light source units (14, 15) are connected to each other through the second lighting control circuit 38 of the light source module 4. The rotation control unit 36 is connected to a servo motor 39 of the scanning mechanism 6. The servo motor 39 rotates the rotating reflectors (16, 17) shown in FIGS. 1 to 3 around the central axis O1 based on the control signal of the lamp ECU 32, thereby emitting the first and the light emitted from the translucent lens 9. The light from the second light source module (4, 7) is swung left and right in front of the vehicle.

  The light source control unit 35 includes LED light emitting elements (2a, 3a) of the first light source module 4 in which two sets of five rows are arranged on the left and right, and LED light emitting elements of the second light source module 7 in which two sets of five rows are arranged on the left and right ( 14a and 15a) are controlled to be turned on and off independently for each LED light emitting element. It is desirable that the LED light emitting elements arranged on the left and right are turned on and off independently in that the width of the drawing pattern can be changed depending on the number of LED light emitting elements to be lit.

  The lamp ECU 32 is connected to the image processing device 40, the human sensor 43, and the like. The image processing apparatus 40 is connected to a road monitoring camera 42 and the like via a communication line such as an in-vehicle camera 41 and the Internet. The in-vehicle camera 41 is mounted on the vehicle together with the road surface drawing lamp unit 1, and the road monitoring camera 42 includes an intersection camera arranged at an intersection, a monitoring camera installed near the road, and the like.

  The human sensor 43 sends detection data of a pedestrian on the road to the lamp ECU 32, and the in-vehicle camera 41 and the road monitoring camera 42 send photographing data regarding a pedestrian or the like existing in the vicinity of the vehicle to the image processing device 40. When a pedestrian on the road is detected by the human sensor 43 or an image of a pedestrian or the like on the road is obtained based on the analysis result of the image processing device 40, the lamp ECU 32 is used for a pedestrian or other vehicle on the road. The lighting control circuit 37 and the rotation control unit 36 of the first light source module 4 are controlled so as to draw a predetermined drawing pattern for calling attention to the driver at a predetermined position such as a road surface.

  For example, in a drawing pattern that calls attention to a pedestrian, a driver of an oncoming vehicle, or the like, an arrow indicating a vehicle traveling direction drawn by combining bar-shaped marks (P11 to P15) having a predetermined shape, or on a traveling lane of the vehicle The bar mark or the like that repeatedly turns on and off in the order of P11, P12, P13, P14, P15, and the like, and is the inner region of the travel lane Ro of the vehicle on which the road surface drawing lamp unit 1 is mounted (the lane mark of the travel lane Ro in FIG. 7) An area drawn only in the area surrounded by Lm1 and the central separation band Lm3 is conceivable. The lamp ECU 32 is a travel lane from the positions of the lane mark Lm1 of the travel lane Ro, the lane mark Lm2 of the opposite lane Rp, and the median strip Lm3, which are taken by the in-vehicle camera 41 and the road monitoring camera 42 and analyzed by the image processing device 40. The on / off operation of the first light source module 4 is controlled so that a drawing pattern for calling attention is displayed only on either Ro or the oncoming lane Rp, or on both the traveling lane Ro and the oncoming lane Rp.

  Further, when a pedestrian on the road or an oncoming vehicle on the opposite lane is detected based on the analysis result of the human sensor 43 or the image processing device 40, the lamp ECU 32 is dazzled by a pedestrian on the road or a driver of another vehicle. The second lighting control circuit 38 is controlled so as to irradiate the second light source module 7 with a high beam light distribution pattern having a shape that avoids the positions of pedestrians and oncoming vehicles that are detected so as not to feel the above.

  The high beam light distribution pattern is formed by combining bar-shaped marks (P21 to P25) drawn by turning on and off the LED light emitting elements (14a, 15a) at predetermined independent timings. When the pedestrian and the opposite lane on the road are detected by the in-vehicle camera 41 and the image processing device 40, the lamp ECU 32 is arranged in two rows of LED light emitting elements (14a, 14a, 14) arranged by the rotation of the rotating reflectors (16, 17). Immediately before any of 15a) is detected, the LED light emitting element is turned off, and the position of the pedestrian or oncoming vehicle has passed by the rotation of the rotating reflector (16, 17). The second lighting control circuit 38 is controlled so that the LED light emitting element that is sometimes turned off is turned on again. As a result, the formed high beam light distribution pattern is used for a variable light distribution vehicle headlamp, and illuminates a road or the like with only the detected pedestrian or oncoming vehicle position darkened.

  Next, a second embodiment of a road surface drawing lamp unit mounted on a vehicle or the like will be described with reference to FIGS. The road surface drawing lamp unit 51 of the second embodiment includes a first light source module 4 for road surface drawing for drawing a figure or the like for alerting the driver or the like of the first embodiment on the road surface, and formation of a high beam light distribution pattern. The second module 7 is integrated into a single light source module 52, and the single light source module 52 displays both the road surface drawing graphic and the like and the high beam light distribution pattern, as well as the road surface drawing of the first embodiment. It has the same configuration as the lighting unit 1.

  As shown in FIGS. 8 and 9, the light source module 52 of the second embodiment includes a first light source unit 53 having five rows of LED light emitting elements (53a to 53e) mounted on a substrate (not shown), and 5 A second light source unit 54 having five rows of LED light emitting elements (54a to 54e) arranged so as to be adjacent to each other on the right side of the row of LED light emitting elements (53a to 53e). The LED light emitting elements (53a to 53e) of the first light source unit 53 and the LED light emitting elements (54a to 54e) of the second light source unit 54 are respectively connected to a power supply connector (not shown) by a power supply cable (not shown). (Not shown).

  The LED light emitting element groups (53a-53c, 54a-54c) in three rows and two sets from above the first and second light source parts (53, 54) shown in FIGS. A group of light emitting elements such as blue to be drawn on a road surface or the like. The remaining two rows and two sets of LED light emitting element groups (53d, 53e, 54d, 54e) of the first and second light source units (53, 54) are white LED light emitting elements that form a high beam light distribution pattern. Is a group. The light source module 52 may employ a laser diode instead of the LED light emitting element.

  Emission light R3 from the LED light emitting element groups (53a to 53c, 54a to 54c) in three rows and two sets from above the first and second light source parts (53, 54) shown in FIGS. 8 and 9 is a rotating reflector ( 16, 17) is reflected toward the translucent lens 9 by any one of the reflective surfaces (16 a, 17 a), and light beams (r 31 to r 33) such as three rows and two sets on the road surface in front of the translucent lens 9. , R41 to r43) are arranged so as to be arranged in front of the vehicle. Further, the outgoing light R4 (dotted line portion) from the LED light emitting element group (53d, 53e, 54d, 54e) is reflected and condensed by a condensing reflector (not shown), and then the rotating reflector (16, 17). Is reflected again toward the translucent lens 9 so as to intersect the outgoing light R3 in the vicinity of the rear focal point O3 of the translucent lens 9, and the road surface in front of the translucent lens 9 The two groups of white light groups (r34, r35, r44, r45) are irradiated so as to be arranged in front of the vehicle.

  In that case, the light of the five light emitting elements (53a to 53e) emitted from the light source unit 53 and incident on any of the reflecting surfaces (16a, 17a) of the rotating reflector (16, 17) is reflected on the reflecting surfaces (16a, 53a). 17a) is incident on a position shifted in the radial direction from the rotation center axis O1 and irradiates the front surface of the translucent lens 9 with five rows of light groups (also in the LED light emitting elements 54a to 54e of the light source unit 54). The same).

  In this state, when the rotary reflectors (16, 17) shown in FIG. 9 are rotated around the central axis O1, the light from the light source module 52 is a blue or the like bar-shaped figure (P31 to P33) extending in the width direction of the road. Is drawn on the road in the direction of travel of the vehicle or in the vicinity of the road in three rows and two sets to draw a figure etc. that alerts the driver of the vehicle, and further in front of or above in the width direction of the road The extended white and bar-shaped figures (P34, P35) are irradiated in two rows and two sets to form a high beam light distribution pattern.

  Further, the five rows and two sets of bar-shaped mark groups (P31 to P35) by the light source module 52 are similar to the first embodiment in the control device of FIG. 7A (the second lighting control circuit is included in the control device of the second embodiment). Unnecessary.) By turning on and off each of the plurality of LED light emitting elements (53a to 53e, 54a to 54e) independently at a predetermined timing, they are displayed in different lengths or displayed separately. A warning mark having a predetermined shape and a light distribution pattern for high beam are displayed at a predetermined position on the road surface or the like.

DESCRIPTION OF SYMBOLS 1 Road surface drawing lamp unit 2 1st light source part 3 2nd light source part 2a, 3a LED light emitting element 4 1st light source module 6 scanning mechanism 7 2nd light source module 14 1st light source part 15 2nd light source part 14a, 15a LED light emission Elements 16, 17 Rotating reflector as an optical member 52 Light source module 53, 54 Light source part 53a to 53e LED light emitting element 54a to 54e LED light emitting element r11 to r15 Reflected light group r21 to r25 Reflected light group

Claims (4)

A light source module including a plurality of light source sections in which a plurality of LED light emitting elements configured to be independently lit or extinguished are arranged;
Reflecting the light groups emitted from the light source unit by the plurality of LED light emitting elements so as to be arranged in the front-rear direction or the vertical direction of the road, and arranging the reflected light groups of the reflected light source units in the width direction of the road An optical member having a reflective surface formed on
A scanning mechanism that operates the optical member to swing the reflected light group of each light source unit in the width direction of the road;
A road surface drawing lamp unit.   2. The road surface drawing according to claim 1, wherein the light source module includes a first light source module for road surface drawing and a second light source module that forms a light distribution pattern for a high beam whose shape can be changed. Lamp unit.   2. The road surface drawing according to claim 1, wherein each of the plurality of light source units includes an LED light emitting element for road surface drawing and an LED light emitting element that forms a light distribution pattern for high beam whose shape can be changed. Lamp unit. The optical member is
It is configured as a rotating reflector with a reflective surface that is formed to be rotatable around the rotation center axis.
The reflective surface is
In the horizontal cross section of the rotating reflector, the angle of the reflecting surface with respect to the incident axis of the incident light to the reflecting surface is formed to change in the rotating direction of the reflecting surface,
The road surface drawing lamp unit according to any one of claims 1 to 3, wherein light incident on the reflection surface is incident on a position shifted in a radial direction from a rotation center axis of the reflection surface.