JP2011184864A - Visual guidance device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a visual guidance device suitable for attachment to a side wall surface of a road and excellent in visibility. <P>SOLUTION: This visual guidance device 1 includes a case body 2, and an LED attachment plate 6 which is housed in the case body 2; the case body 2, which is provided with an optically-transparent protective cover 3 for covering the LED attachment plate 6, can be attached to a side wall surface of the road in such a manner that a rear surface is positioned along the side wall surface of the road; the protective cover 3 is formed in a horizontally long shape in a front view; a plurality of LEDs 60 are disposed on the LED attachment plate 6 in such a manner that an optical axis of each LED 60 is perpendicular to a plate surface of the LED attachment plate 6; the LED attachment plate 6 is disposed in an inclined manner so that one side edge 61, on the front side of the vehicle traveling on the rod along the side wall surface, of right and left side edges 62 and 61 can be positioned on a side further away from the rear surface 2a of the case body 2 than the other side edge 62; and the LEDs 60 emit light so that a wholly horizontally-long light-emitting surface can be formed on the protective cover 3. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a gaze guidance device that is installed on a side wall of a road, such as a side wall of a highway or a tunnel inner wall, and recognizes road alignment, road width, and the like, and in particular, a gaze using an LED (light emitting diode) as a light source. It relates to a guidance device.

  Since the LED has a long life and requires little replacement, the LED is used as a light source for a line-of-sight guidance device installed in a place where replacement is not easy, such as a side wall of a highway or an inner wall of a tunnel.

  For example, a delineator described in Patent Document 1 below is provided inside a casing, and is provided with a movable member that is rotatable about an axis along a vertical direction with respect to the mounting surface of the casing, and is supported by the movable member. A mounting plate having a plane along the plane, LEDs arranged on the plane of the mounting plate, and means for rotating the movable member from the outside of the casing, and rotating the movable member from the outside Thus, the irradiation direction of the LED can be adjusted to improve the visibility.

  Further, the line-of-sight guidance device described in Patent Document 2 is attached to a substrate so that the optical axis of the LED is parallel to the substrate, and a light-emitting device is formed. Is not matched, and the glare that road users feel is reduced.

  In addition, the line-of-sight guide lamp described in Patent Document 3 includes a light emitter including an LED and a housing that houses the light emitter and is covered with a transparent cover, and the light emitting surface of the light emitter is at a predetermined angle with respect to the housing. By improving the visibility, the visibility was improved.

  In addition, there exists a thing described in the following patent document 4 as an eyesight guidance apparatus by the applicant.

Japanese Utility Model Publication No. 4-37613 JP 2005-82984 A Japanese Patent Laid-Open No. 11-43908 Japanese Patent No. 3833517

  However, the delineator described in Patent Document 1 is configured so that the lower surface of the frame provided below the transparent resin glove is attached to the side wall of the road or the like (pages 4 to 9 of the same document). Line, see Fig. 1), and it is attached to the upper surface of the side wall of the road, which is not suitable for mounting on the wall of a high-speed highway soundproof wall or the inner wall of a tunnel. there were. Moreover, since the optical axis of LED is parallel to a board | substrate, the visual guidance apparatus of the said patent document 2 had the problem that visibility was bad when seen from the driver | operator of a vehicle, and it was hard to be visually recognized linearly. Furthermore, the line-of-sight guide lamp described in Patent Document 3 has a problem in that the light-emitting surface is vertically elongated, so that the visibility when viewed from the driver of the vehicle is poor and it is difficult to see linearly.

  The present invention solves the above-described problems, and is suitable for mounting on the side wall surface of a road including the wall surface of a soundproof wall of a highway and the inner wall surface of a tunnel, and is also viewed from the driver of the vehicle. It is an object of the present invention to provide a line-of-sight guidance device that is excellent in visibility and can be visually recognized linearly by a driver when a plurality of the lines are arranged side by side.

  The line-of-sight guidance device of the present invention includes a case body and one or more LED mounting plates accommodated in the case body, and the case body includes a light-transmitting cover portion that covers the LED mounting plate. The rear surface is configured to be attachable to the side wall surface so as to be along the side wall surface of the road, the cover portion has a horizontally long shape when viewed from the front, and the LED mounting plate includes a plurality of LEDs. The LED mounting plate is arranged so that the optical axis is perpendicular to the plate surface of the LED mounting plate, and the LED mounting plate is a front side for a vehicle traveling on the road along the side wall surface of the left and right side edges. The one side edge which becomes becomes inclined so that it is located on the side farther from the rear surface of the case body than the other side edge, and the plurality of LEDs emit light, so that the whole on the cover part As a feature, a horizontally long light emitting surface is formed. That.

  According to this, since the case body of the line-of-sight guidance device can be attached to the side wall surface so that the rear surface is along the side wall surface of the road, the road body including the wall surface of the soundproof wall of the expressway and the inner wall surface of the tunnel, etc. It is suitable for attachment to the side wall surface. The LED mounting plate travels on the road along the side wall surface of the left and right side edges to which the line-of-sight guidance device is attached (that is, travels in the lane where the line-of-sight guidance device is provided). Since one side edge is inclined so as to be located on the side farther from the rear surface of the case body than the other side edge, it is easy for the driver of the lane in which the line-of-sight guidance device is provided to easily see the LED light. Dazzling is reduced for drivers in the opposite lane. Furthermore, since the LED has a horizontally long light emitting surface as a whole on the cover portion, and light is emitted from the horizontally long light emitting surface to the upstream side of the road, it is easy to see linearly from the driver's perspective, It is possible to guide the line of sight well.

  Here, on the inner surface of the cover portion, there is a light refracting portion that refracts the optical axis of each LED in the same direction as the optical axis is inclined from the direction perpendicular to the rear surface by the inclination of the LED mounting plate. It is preferable to be provided.

  According to this, the light of each LED is further directed toward the driver by being refracted by the light refracting portion, and thus visibility is improved.

  And it is preferable that the said LED mounting board in which only red LED was arrange | positioned, and the said LED mounting board in which only blue LED was arrange | positioned side by side.

  According to this, even when the visibility is poor due to dense fog or the like, the visibility is excellent.

  Furthermore, it is preferable that the red LED and the blue LED are configured to blink alternately.

  According to this, the driver's attention can be drawn by blinking, and the visibility is further improved.

  Moreover, it is preferable that the said cover part is milky white.

  According to this, while being able to reduce the glare which a driver | operator feels, when LED is not light-emitting, it becomes difficult to see the inside of an apparatus, and it will also be excellent in appearance.

  The line-of-sight guidance device of the present invention is suitable for mounting on the side wall surface of the road including the wall surface of the soundproof wall of the expressway and the inner wall surface of the tunnel, and is also highly visible when viewed from the driver of the vehicle. It is excellent, and when a plurality of line-of-sight guidance devices are arranged in parallel, the line-of-sight is visually recognized by the driver, and the line-of-sight can be guided well.

1 is a perspective view of a line-of-sight guidance device according to a first embodiment of the present invention. It is a front view of the same gaze guidance device. It is the perspective view which displayed the principal part inside the same gaze guidance apparatus by the broken line. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3 in which the inside of the control unit is omitted. FIG. 5 is a cross-sectional view taken along line VV in FIG. 3 with the inside of the control unit omitted. It is a block diagram which shows the circuit structure of the same gaze guidance apparatus. It is a top view of the state which installed the same gaze guidance apparatus in the side wall surface of a road. It is a figure which shows the state which attached the same gaze guidance apparatus to the curve. It is a cross-sectional view of the line-of-sight guidance device according to the second embodiment of the present invention. It is a figure of the right curve for demonstrating the refraction angle of LED. It is a block diagram which shows the circuit structure of the modification of a gaze guidance apparatus.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a first embodiment of the invention will be described with reference to the drawings.

  As shown in FIGS. 1 and 3, the line-of-sight guidance device 1 includes a horizontally long case body 2 and two LED substrates (corresponding to LED mounting plates) 6 housed inside the case body 2. .

  The case body 2 is made of polycarbonate and has a horizontally long semi-cylindrical protective cover (corresponding to a cover portion) whose rear side is opened and left and right sides are closed, and a rear opening 30 of the protective cover 3 (FIG. 4). The cover 5 is made up of a horizontally long rectangular back cover 4 that closes (see FIG. 4), and aluminum frames 5 and 5 fitted to both left and right ends of the protective cover 3. The protective cover 3 has a horizontally long shape (here, a horizontally long rectangular shape) in a front view. The horizontally long shape refers to a shape having a longer horizontal length (maximum length when there are a plurality of lengths) than a vertical length (maximum length when there are a plurality of lengths).

  Although the protective cover 3 is made of transparent polycarbonate, the inner surface (the surface on the inner side of the case body 2) is shot blasted, and further, an irregular reflection sheet (not shown) is attached to form an irregular reflection surface that irregularly reflects light. It is milky white that transmits light. The irregular reflection surface can also be formed by an inorganic acid corrosion treatment or the like. The horizontal length of the protective cover 3 is 50 cm in this embodiment. From the point of showing light linearly, the gaze guidance device 1 is advantageous to be long, but if it is too long, it becomes difficult to follow the side wall surface of the curved portion of the road. Therefore, the lateral length of the protective cover 3 is preferably 40 to 60 cm. The entire line-of-sight guidance device 1 is not so long and can be easily mounted even on a curved portion of a road, so that the workability is good, the LED boards 6 and 6 and the control box 10 described later are easy to fit, and the lightness is linear. It is because it can be shown to.

  As shown in FIG. 5, the protective cover 3 has a thick portion 31 in which screw holes are formed in each of the center portion and the left and right end portions. The back cover 4 is screwed to the protective cover 3 with screws 9 using the screw holes of the thick portions 31. As shown in FIG. 4, the back cover 4 is screwed to the frames 5 and 5 with screws 7.

  Each frame 5 includes a base portion 55 whose rear surface is parallel to the rear surface of the back cover 4, and a substantially semicircular protective cover fitting portion 51 protruding forward from the base portion 55. The edge 53 forming the arc of the joint portion 51 protrudes leftward from the right frame 5 and rightward from the left frame 5. Then, the protective cover fitting portions 51 of the left and right frames 5 are fitted on the left and right ends of the protective cover 3, respectively. Each protective cover fitting portion 51 has a through-hole 52 through which a power cable is inserted, and the protective cover fitting portions 51 of the left and right frames 5 are also attached to the left and right side wall portions 32 of the protective cover 3. A through hole 33 into which the power cable is inserted is formed at a position overlapping the through hole 52 when fitted to the left and right ends, respectively. Concave portions 56 are respectively formed at the upper and lower end portions of the base portion 55, and bolts are inserted into the recessed portions 56 and attached to the side wall surface of the road. It can be attached to the side wall surface. In addition, the side wall surface of a road means the road side surface in the side wall (including a guardrail) of a road.

  As shown in FIGS. 3 and 4, the LED boards 6 and 6 are arranged side by side with the control unit 10 disposed in the center part inside the case body 2, and are covered with the protective cover 3. Each LED board 6 has a horizontally long rectangular shape, and a plurality of LEDs 60 are attached such that the optical axis of each LED 60 is perpendicular to the plate surface 63 of the LED board 6. The plurality of LEDs 60 attached to each LED substrate 6 are arranged so as to form a horizontally long shape (here, a horizontally long rectangular shape) as a whole (that is, the whole of the plurality of LEDs 60 attached).

  Note that the LEDs 60 on each LED substrate 6 may be arranged so that the light emitting surface formed on the protective cover 3 by the entire LED 60 on each LED substrate 6 is horizontally long even if it is not horizontally long as a whole. That's fine. In this embodiment, since the directivity angle of each LED 60 is 30 °, the range of light emitted from each LED substrate 6 is a horizontal range unless refraction and irregular reflection at the protective cover 3 are taken into consideration. It is indicated by a two-dot chain line in FIG. 4, and a vertical range is a range indicated by the two-dot chain line in FIG. Therefore, as shown by a two-dot chain line in FIG. 2, a horizontally long light emitting surface A is formed on the protective cover 3 by the LED 60 on each LED substrate 6. The ratio of the sum of the lateral lengths of the two light emitting surfaces A to the lateral length (50 cm) of the protective cover 3 is about 0.75. The light emitting surface A has a horizontally long rectangular shape (rectangular shape) in FIG. 2, but the light from each LED 60 is refracted and irregularly reflected by the protective cover 3, and therefore actually from the rectangular portion shown in FIG. 2. The range is wide and the boundaries are not clear.

  Each LED substrate 6 is fixed to an aluminum substrate mount 8 disposed inside the case body 2 via a support member 83. As shown in FIGS. 3 and 4, each board mount 8 is formed such that the right end portion 80 is formed in an L shape in a plan view and protrudes forward from a position along the back cover 4, and the left end portion 81 is A horizontally long rectangular shape that is formed along the back cover 4 and is inclined so that the right edge is positioned on the side farther from the rear surface of the case body 2 than the left edge, between the right end 80 and the left end 81. An inclined surface 82 is provided. And each LED board 6 is fixed to the board | substrate mount 8 with the supporting member 83 so that it may become parallel to the inclined surface 82, and the right side edge 61 was separated from the rear surface 2a of the case body 2 rather than the left side edge 62. It is inclined and arranged so as to be located on the side (that is, the distance between the right edge 61 and the rear surface 2a is longer than the distance between the left edge 62 and the rear surface 2a). The angle θ formed by each LED substrate 6 and the rear surface 2a is 11 ° in the present embodiment.

  If the right LED board 6 is represented as an LED board 6R and the left LED board 6 is represented as an LED board 6L, the LEDs 60 arranged on the LED board 6R are all red LEDs 60 and arranged on the LED board 6L. The LEDs 60 are all blue LEDs 60. The LED boards 6R and 6L are connected to the control unit 10, and the control unit 10 controls the LEDs 60 on the LED board 6R and the LEDs 60 on the LED board 6L to blink alternately. That is, the red LED 60 and the blue LED 60 blink alternately.

  As shown in FIG. 6, the control unit 10 includes a day / night discrimination circuit 11 and a blinking control circuit 12 connected to the day / night discrimination circuit 11. The day / night discrimination circuit 11 is connected to a power source 13 provided outside the line-of-sight guidance device 1, and the blinking control circuit 12 is connected to each LED (light emitting body) 60 to indicate that it is nighttime from the day / night discrimination circuit 11. When the determination signal is input, the blinking control circuit 12 causes the LED 60 on the LED board 6R and the LED 60 on the LED board 6L to blink alternately. The blinking control circuit 12 is connected to a bad vision sensor 14 provided outside the line-of-sight guidance device 1. The bad vision sensor 14 detects poor visibility (bad vision) in the same manner as the fog detector described in Patent Document 4 and outputs a detection signal to the blinking control circuit 12. The blinking control circuit 12 raises the light emission intensity of each LED 60 and makes each LED 60 shine strongly when the detection signal of the bad visibility is input from the bad vision sensor 14.

  As shown in FIG. 7, normally, a plurality of line-of-sight guidance devices 1 are arranged side by side. For this reason, usually, electricity is supplied from one power source 13 to the plurality of visual guidance devices 1, and one bad vision sensor 14 is installed for the plurality of visual guidance devices 1, and the bad vision sensor is provided. 14, a detection signal is input to the blinking control circuit 12 of each gaze guidance device 1.

  As shown in FIG. 7, the line-of-sight guidance device 1 configured as described above is attached to the side wall surfaces 104 a and 105 a of the roads 101 and 102 with bolts that are inserted into the concave portions 56 of the base portion 55. Specifically, the roads 101 and 102 are provided across the center line 103, and a side wall 104 is erected along the road 101 and a side wall 105 is erected along the road 102. A plurality of line-of-sight guidance devices 1 are juxtaposed along the length direction of the roads 101 and 102 (the vertical direction in FIG. 7) on the side wall surface 104a of the side wall 104 and the side wall surface 105a of the side wall 105, respectively. In each gaze guidance device 1, the red LED 60 on the LED board 6 </ b> R and the blue LED 60 on the LED board 6 </ b> L blink alternately at night. When the field of view is poor due to fog or the like, the LED 60 emits light strongly.

  According to the line-of-sight guidance device 1, each LED 60 is mounted such that the optical axis is perpendicular to the plate surfaces of the LED boards 6R and 6L. The LED boards 6R and 6L have the right edge 61 more than the left edge 62. Since it is inclined so as to be located on the side away from the rear surface 2a (that is, closer to the center of the roads 101 and 102), it is attached to the side wall surface 104a as indicated by a two-dot chain line arrow L1 in FIG. The optical axis of the LED 60 of the line-of-sight guidance device 1 is inclined from the direction perpendicular to the side wall surface 104a to the upstream side of the road 101 (the lower side in FIG. 7), and the LED 60 of the line-of-sight guidance device 1 attached to the side wall surface 105a. The optical axis is inclined to the upstream side of the road 102 (upper side in FIG. 7) from the direction perpendicular to the side wall surface 105a. For this reason, the light from the line-of-sight guidance device 1 attached to the side wall surface 104a is easily visible to the driver of the vehicle (automobile) 106 traveling on the road 101 along the side wall surface 104a. The arrow L1 represents the optical axis of the LED 60 at the center of the LED substrates 6R and 6L, and irregular reflection / refraction at the protective cover 6 is not taken into consideration.

  And since LED60 on LED board 6R, 6L is each arrange | positioned so that the horizontally long light emission surface A may be made | formed on the protective cover 3, the visual guidance apparatus 1 as a whole in the longitudinal direction of a road It emits horizontally long along. That is, light is emitted from the horizontally elongated light emitting surface A toward the upstream side of the roads 101 and 102 (that is, the side facing the driver), so that the light is linearly viewed from the driver's line of sight. It is visible, the shape of the road is easy to understand, and the line of sight can be guided well. The gaze guidance device 1 has a lateral length of 50 cm, which is not so long. However, since the LED board 6 is tilted to incline the direction of light, the driver is linear even if the lateral length is about 50 cm. Will be visible.

  FIG. 8 shows a state in which the line-of-sight guidance device 1 is installed at a predetermined interval from a straight road to a curve. As can be seen from this figure, it is installed on the straight road when viewed from the driver of the vehicle V. Since the line-of-sight guidance device 1 (1a to 1c in FIG. 8) appears to be closely spaced, it looks linear. Since the line of the line-of-sight guidance device 1 arranged on the curve can be seen following the linear light, the driver's line of sight can be smoothly guided to the curve, and the line of sight can be guided well.

  Further, since the light from the line-of-sight guidance device 1 attached to the side wall surface 104a is inclined to the downstream side of the road 102 in the opposite lane, the driver of the vehicle 107 traveling on the road 102 feels dazzling. It will not be allowed. Similarly, the light from the line-of-sight guidance device 1 attached to the side wall surface 105a is easily recognized linearly by the driver of the vehicle 107 traveling on the road 102 along the side wall surface 105a, and the road 101 in the opposite lane. For the driver of the vehicle 106 who is traveling, the glare is not felt.

  In addition, since the light from each LED 60 is diffusely reflected and diffused on the inner surface of the protective cover 3 and passes through the protective cover 3, the directivity angle of each LED 60 is narrow. It emits light and has excellent visibility, and the glare for the driver in the lane on the side where the line-of-sight guidance device 1 is provided is also reduced. And since the protective cover 3 is milky white, when LED60 is not light-emitting, it becomes difficult to see the inside of the visual guidance apparatus 1, and the appearance is also excellent.

  Further, as described in Patent Document 4, in a situation where visibility is poor, such as nighttime dense fog, the blue LED has excellent presence recognition and the red LED has excellent shape recognition. The LED board 6R on which the LED is disposed and the LED board 6L on which the blue LED 60 is disposed are arranged side by side so that each LED 60 emits light. Can be recognized with a high degree of recognition, and the line of sight can be guided well. Since the red LED 60 and the blue LED 60 are alternately blinked, the driver's eyes are easily attracted and the visibility is further improved.

  Next, a line-of-sight guidance device 1B that is a second embodiment of the present invention will be described. In addition, the same code | symbol is attached | subjected about the same component as 1st Embodiment, and the description is abbreviate | omitted suitably.

  As shown in FIG. 9, in the line-of-sight guidance device 1 </ b> B of the second embodiment, a plurality of light refracting portions 34 that refract the optical axis of the LED 60 are integrally formed on the inner surface of the protective cover 3. Each light refracting portion 34 projects inwardly into the protective cover 3 in a semicircular shape along the circumferential direction of the curved surface portion from the upper surface of the protective cover 3 to the lower surface through the front surface to the lower surface. It has a triangular shape. Further, no irregular reflection sheet is provided on the inner surface of the protective cover 3. Other than these, the visual guidance device 1B is configured in the same manner as the visual guidance device 1.

  Then, the optical axis of each LED 60 is refracted by each light refracting section 34 as shown by a two-dot chain line in FIG. The direction of refraction is the same as the direction in which the optical axis of each LED 60 is inclined from the direction perpendicular to the rear surface 2a of the case body 2 (the direction indicated by the arrow Y in FIG. 9) by inclining each LED substrate 6. It is. That is, the light is refracted toward the upstream side of the road where the line-of-sight guidance device 1B is provided. In the line-of-sight guidance device 1B, the optical axis of each LED 60 is inclined by 25 ° from the direction parallel to the rear surface 2a by each light refracting section 34. That is, α = 25 ° in FIG.

  The inclination angle α of the optical axis of each LED 60 with respect to a direction parallel to the rear surface 2a (that is, a direction along the side wall surface, which is a tangential direction of the side wall surface in the curve) is preferably 5 to 25 °. . FIG. 10 shows the optical axis of the LED 60 with a two-dot chain line when the line-of-sight guidance device 1B is arranged at points P1 and P2 on the left wall surface of the portion that enters the right curve from the straight road. As in the embodiment, when α is 25 °, the optical axis from the point P1 is indicated by a two-dot chain line L2, the optical axis from the point P2 is indicated by a two-dot chain line L3, and when α is 5 °, the point P1. The optical axis from is indicated by a two-dot chain line L4, and the optical axis from the point P2 is indicated by a two-dot chain line L5. This is because, considering that the directivity angle of the LED 60 is 30 °, the light can be visually recognized from a position sufficiently far before the curve if the inclination angle α is in the range of 5 to 25 °.

  If the LED substrate 6 is formed in a horizontally long shape in order to form the horizontally long light emitting surface A, the large inclination of the LED substrate 6 itself increases the width W (see FIG. 9) of the case body 2 in the front-rear direction. Although it is difficult, according to the line-of-sight guidance device 1B, the optical axis of each LED 60 is at a larger angle than the angle inclined by the inclination of each LED substrate 6 without greatly inclining the LED substrate 6 itself. Since it inclines toward the upstream side of the road, it is possible to improve the visibility for the driver while keeping the line-of-sight guidance device 1B compact.

  That is, according to the line-of-sight guidance device 1B, as indicated by the one-dot chain line L2 in FIG. 7, the optical axis of the LED 60 is refracted toward the vehicles 106 and 107, so that the visibility for the driver can be improved.

  In each of the above embodiments, an external power source is used. However, as shown in FIG. 11, the line-of-sight guidance devices 1 and 1B may be of a self-luminous type including a solar cell 17 that generates power by sunlight. In the example shown in FIG. 11, the control unit 10 of the line-of-sight guidance device 1 includes a day / night discrimination circuit 11, a blinking control circuit 12 connected to the day / night discrimination circuit 11, and a constant voltage charging circuit 15 connected to the solar cell 17. And a power storage unit 16 that is connected to the constant voltage charging circuit 15 and stores the electric power generated by the solar cell 17. The day / night discrimination circuit 11 is connected to the solar cell 17 to detect the electromotive voltage of the solar cell 17 to discriminate day and night, and the blinking control circuit 12 is connected to each LED 60 to connect the day / night discrimination circuit 11 to the night. When the determination signal to the effect is input, each LED 60 is caused to emit light by the electric power of the power storage unit 16. The blinking control circuit 12 is connected to a bad vision sensor 14 provided outside the line-of-sight guidance device 1. When the solar cell 17 is provided in the line-of-sight guidance device 1, for example, the solar cell 17 emits sunlight such that a part of the upper surface of the protective cover 3 is transparent and the solar cell 17 is disposed immediately below the transparent surface. The structure is easy to receive.

  In each of the above embodiments, the LED board 6 is arranged on the side farther from the rear surface 2a than the left edge 62, depending on the case where the line-of-sight guidance devices 1 and 1B are provided on the left side of the lane. For example, when the gaze guidance device 1 is attached to the side wall provided on the right side of the lane on an expressway or the like in which the up lane and the down lane are provided separately, the left edge 62 is the right edge. It inclines so that it may be arrange | positioned rather than the rear surface 2a rather than 61. FIG. That is, the LED board 6 has one side edge which is the front side for the vehicle traveling on the road along the side wall surface on which the line-of-sight guidance devices 1 and 1B are provided, on the left and right side edges 61 and 62. What is necessary is just to incline and arrange | position so that it may be located in the side away from the rear surface 2a rather than the side edge.

  Further, the horizontally long shape is not limited to a horizontally long rectangular shape, but also includes a horizontally long elliptical shape, and the shape formed by the LEDs 60 on the LED substrate 6 as a whole may be a horizontally long arrow shape or a horizontally long triangle shape. Further, a plurality of LED groups (for example, LED groups in which nine LEDs 60 are arranged in a square shape in three rows and columns) are provided on one LED substrate 6 at intervals. The arrangement of the LEDs 60 can be appropriately changed, for example, by forming a horizontally long light emitting surface A on the protective cover 3 as a whole.

  Moreover, it is good also as providing the 3 or more LED board 6 in one gaze guidance apparatus 1 and 1B. For example, a total of four LED boards 6 are arranged in parallel on the left and right sides of the control unit 10, the red LED 60 is provided on the two right LED boards 6, and the blue LED is provided on the two left LED boards 6. The LED 60 may be disposed, or the LED substrate 6 on which the red LED 60 is disposed and the LED substrate 6 on which the blue LED 60 is disposed may be alternately disposed. Conversely, only one LED substrate 6 may be provided in one line-of-sight guidance device 1.

A ... Light emitting surface 1, 1B ... Gaze guidance device 2 ... Case body 2a ... Rear surface 3 ... Protective cover (cover part)
34 ... Light refraction part 6 ... LED mounting plate (LED substrate)
60 ... LED
61 ... Right edge (one edge)
62 ... Left side edge (other side edge)

Claims (5)

A case body and one or more LED mounting plates accommodated in the case body,
The case body has a light-transmitting cover portion that covers the LED mounting plate, and is configured to be attachable to the side wall surface such that the rear surface is along the side wall surface of the road,
The cover portion has a horizontally long shape in a front view,
In the LED mounting plate, a plurality of LEDs are arranged such that the optical axis of each LED is perpendicular to the plate surface of the LED mounting plate,
In the LED mounting plate, one of the left and right side edges, which is the front side for a vehicle traveling on the road along the side wall surface, is on the side farther from the rear surface of the case body than the other side edge. Placed so as to be inclined,
When the plurality of LEDs emit light, a horizontally long light emitting surface is formed on the cover portion as a whole.   A light refracting portion is provided on the inner surface of the cover portion to refract the optical axis of each LED in the same direction as the optical axis is inclined from the direction perpendicular to the rear surface by the inclination of the LED mounting plate. The line-of-sight guidance device according to claim 1.   3. The LED mounting plate in which only red LEDs are disposed and the LED mounting plate in which only blue LEDs are disposed are arranged side by side. Gaze guidance device.   The line-of-sight guidance device according to claim 3, wherein the red LED and the blue LED are alternately blinked.   The line-of-sight guidance device according to claim 1, wherein the cover portion is milky white.

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