JP5426450B2 - Self-luminous gaze guidance mark - Google Patents

Description

  The present invention guides the driver's line of sight by turning on a plurality of light emitters, which are installed on the roadside or in a median strip, etc., composed of red LEDs and blue LEDs so as to blink at night. It relates to a self-luminous gaze guidance mark.

  Conventionally, as this kind of line-of-sight guidance device, what constitutes a plurality of luminous bodies from red LED and blue LED which make it blink alternately is known (for example, patent documents 1). This self-luminous gaze guidance mark is easy to recognize the shape of the gaze guidance mark, that is, a red LED that is excellent in shape recognition, and a blue LED that is easy to recognize the presence of the gaze guidance mark, that is, excellent in presence recognition. A plurality of such devices are arranged side by side, and the driver can easily see even at night or in dense fog.

JP 2002-201618 A

  However, in the above self-luminous line-of-sight guidance sign, the display surface provided with the LEDs is a rectangular plate, and a large number of LEDs are arranged, and the LED display surface is circular or the amount of LED used In the case where the amount is reduced, there is a problem in that it is preferably used with good visibility.

  The present invention solves the above-described problems, and an object of the present invention is to provide a self-luminous gaze guidance mark that can be used with good visibility in bad weather even when the light emitting body (LED) has a circular display surface. And

The self-luminous line-of-sight guidance mark according to the present invention is a self-luminous line-of-sight guidance mark composed of a red LED and a blue LED, in which a plurality of light emitters blink alternately,
One red LED is a central LED arranged at the center of the display surface of the light emitter,
A red LED and blue LED other than the central LED, respectively, while being used three or more, around a central LED, along the circumferential direction, a uniform, and, alternately, is disposed, further
Each of the red LED and the blue LED is covered with a transparent light source cover,
The light source cover part can diffuse the light at the time of light emission,
A convex meniscus lens-shaped lens part in which both the outer surface and the inner surface protrude forward on the front side of each of the red LED and the blue LED,
A cylindrical rib that surrounds each of the red LED and the blue LED and extends rearward from the outer peripheral edge of the lens unit;
It is characterized by being arranged .

  In the self-luminous line-of-sight guidance mark according to the present invention, a red LED is arranged at the center of the display surface of the illuminant, and a red LED and a blue LED alternate along the circumferential direction around the LED. Although blue LEDs are not arranged in the center of the display surface, three or more LEDs are arranged radially around the center LED, so there is a visual guidance indicator even in bad foggy weather You can secure recognition. On the contrary, a red LED that is easily noticeable is arranged in the center of the display surface, and three or more red LEDs are arranged around it, so that the number of red LEDs that are easily noticeable increases. Good visibility can be ensured not only during normal times but also during bad weather such as dense fog. Furthermore, the self-luminous line-of-sight guidance mark according to the present invention is such that three or more red LEDs and blue LEDs are evenly distributed along the circumferential direction around the center LED arranged at the center of the display surface. In the case where the display surface is circular and the display surface is circular, preferably around the central LED so that the display surface is similar to the display surface without a useless display area. A red LED and a blue LED can be disposed.

Therefore, the self-luminous gaze guidance mark according to the present invention can be used with good visibility in bad weather even when the display surface is circular.
Further, in the self-luminous line-of-sight guide according to the present invention, the lens unit is configured by a convex lens that diffuses LED light that is difficult to diffuse from the entire region of the lens unit, and further, as a meniscus lens, the lens unit Even in the vicinity of the outer peripheral edge, it is possible to suppress a decrease in luminance and diverge light, and it becomes easy to visually recognize the light of the LED not only from the front of the display surface but also from an oblique direction with respect to the display surface. That is, with such a configuration, as much as possible, bright brightness and a wide visual field range can be secured when red LEDs or blue LEDs emit light. Further, a transparent cylindrical rib is provided on the outer peripheral edge of the lens portion so as to wrap the LED, and the light that diverges around the LED is also reflected on the inner and outer peripheral surfaces of the rib, so that the lens portion Since it can radiate | emit from the side, it can be set as the aspect which light-emits LED from the whole lens part further.

  In addition, in the case where one or two red LEDs and blue LEDs are arranged around the central LED, each color LED emits light in a single character form, Since it is difficult to induce a circular image, it is not preferable when the display surface is circular.

  In the self-luminous line-of-sight guidance mark according to the present invention, the red LED and the blue LED arranged in the circumferential direction around the central LED are used if they are arranged in a single annular shape. A line of sight with a red-type LED and a blue-type LED of 70 to 100φ of a reflector type that is not self-luminous installed on the road or the like by reducing the number of red LEDs and blue LEDs by 3 or 4 excluding the central LED. It can be suitably used as a substitute for a guide mark. Incidentally, the reflection type gaze guidance mark stipulates that “the size is 70 to 100 mm in diameter” and, in principle, “to be installed on the left side” in the installation standards of the Japan Road Association.

  In addition, when red LEDs and blue LEDs are arranged evenly and alternately around the center LED, one red LED is not necessarily required if an annular image can be generated at the time of lighting. And blue LEDs need not be alternately arranged, for example, either one of them as a plurality of two or the like, and the red LEDs are alternately arranged so as to be repeatedly arranged along the circumferential direction. Blue LEDs are arranged, or both around the central LED along the circumferential direction so that the same number or a plurality of different numbers are repeatedly circulated evenly. Alternatively, a predetermined number of red LEDs and blue LEDs may be alternately arranged.

Further , in the self-luminous gaze guidance mark according to the present invention, the display surface of the gaze guidance mark is configured by providing a transparent front cover part in which a light source cover part is disposed, and a red system is provided behind the front cover part. It is desirable to dispose a reflective sheet capable of reflecting light from the front by causing the LED and the blue LED to protrude forward and having the front surface in contact with the rear end face of the rib.

  In such a configuration, the light received on the display surface can be reflected even during twilight or daytime when the LED is not emitting light (or when the remaining amount of the power storage unit is zero), etc. Can be visually recognized. Furthermore, when the LED emits light, the light reflected through the reflection sheet can also be emitted from the lens unit side using the ribs of the light source cover unit, so that the LED is further illuminated from the entire lens unit. Can do.

Furthermore, in the self-luminous line-of-sight guidance mark according to the present invention, a control is provided in which a light emitter is provided on the front side, a power storage unit serving as a power source for the light emitter is provided on the rear side, and the light emitter is blinked at night. The foundation,
A solar cell that is generated by sunlight and charges the battery,
A case for storing the control board and the solar cell;
And configure
The case is provided with a front cover part, and is composed of two parts, a front case part that covers the light emitter, the reflection sheet, and the solar cell, and a rear case part on the rear side.
It is desirable that the front case portion and the rear case portion are joined with a packing interposed between them so that the inside of the case is in a watertight state, and a desiccant is disposed in the case.

  In such a configuration, the inside of the case is made watertight using packing, and a desiccant is further provided in the case. Therefore, even when water vapor is in the case when closing the case at the beginning of manufacture, the water vapor in the case is absorbed by the desiccant, and the water vapor for dew condensation is eliminated as much as possible when the temperature drops at night. Thus, condensation or fogging on the rear surface side (back surface side) of the front cover portion covering the light emitter (LED) can be suppressed, and visibility of the light emitter during light emission is not hindered. By the way, if condensation or fogging occurs on the rear side of the light source cover, the blue LED light is likely to be less visible than the red LED light. The dehumidification inside is suitable for a self-luminous gaze guidance mark provided with a blue LED. Of course, in this case, since the case maintains a watertight state using the packing, rainwater does not enter the case, and stable condensation and fogging on the rear side of the front cover portion covering the luminous body are prevented. Can be prevented.

Furthermore, in this case, the packing is provided with an extending portion extending from the outer peripheral edge of the front case portion and the rear case portion to the inside of the case,
While arranging the desiccant in the form of a sheet, the position of the extending part is regulated, and the rear side of the control board is arranged,
At least one of the packing and the desiccant presses the control base together with the power storage unit against the rear end face side of the rib of the front case part with a reflective sheet interposed when the front case part and the rear case part are coupled to each other In addition, in cooperation with the ribs of the front case part, it is configured to hold and hold,
Dispersing the power storage unit on the rear side of the control base so that the control base can be pressed to the front case without tilting it back and forth with respect to each rib when the front case and the rear case are connected to each other It is desirable to arrange them.

  In such a configuration, the sheet-like desiccant is disposed on the rear surface side of the control board in a plane shape parallel to the front cover portion covering the light emitter, so that moisture in the case can be accurately measured. Can absorb moisture. In such a configuration, the control base provided with the light emitter and the power storage unit does not have to be separately attached to the front case portion or the rear case portion of the case using screws or the like. It is possible to reduce the number of parts, man-hours, and cost to be attached. Furthermore, since the plurality of power storage bodies can press the control base toward the front case part without tilting the control board back and forth with respect to each rib, the light from each light emitter (LED) is stably supplied to the light source cover part. It can be made to radiate forward via.

Further, in the self-luminous line-of-sight guidance mark according to the present invention, a solar cell storage portion that stores the solar cell in the case,
Above the front cover part, it is formed in a bowl shape so as to protrude forward, and
The solar cell is disposed along a substantially horizontal direction, and the transparent upper surface cover portion covering the solar cell is inclined upward and downward so that rainwater can flow down the solar cell,
It is desirable to configure.

  In such a configuration, since the upper part of the front side of the light emitter is covered with the bowl-shaped solar cell storage portion, the front cover portion covering the light emitter can be prevented from being stained with rainwater, and even at twilight, The light of the light emitter can be made clear. Further, since the upper surface cover portion of the solar cell storage portion is inclined forward and it is difficult to store rainwater, the solar cell can immediately receive sunlight in the fine weather after rain.

  As described above, the self-luminous gaze guidance mark according to the present invention can be used with good visibility in bad weather even when the display surface of the illuminant is circular.

It is a front view of the self-luminous gaze guidance mark of one embodiment concerning the present invention. It is a rear view of the self-luminous gaze guidance mark of an embodiment. It is a top view of the self-luminous gaze guidance mark of an embodiment. It is a right view of the self-luminous line-of-sight guidance mark of an embodiment. It is sectional drawing of the self-light-emitting gaze guidance mark of embodiment, and respond | corresponds to the VV site | part of FIG. It is a rear view which shows the state which removed the rear side case part in the self-light-emitting gaze guidance mark of embodiment. It is a perspective view which shows the back side case part of embodiment, packing, and a sheet-like desiccant. It is a circuit diagram of the self-luminous line-of-sight guidance mark of an embodiment. It is a figure explaining the state at the time of the coupling | bonding of the case of the self-light-emitting gaze guidance mark of embodiment. It is a schematic front view which shows the self-light-emitting gaze guidance mark which changed arrangement | positioning and number of red type | system | group LED and blue type | system | group LED. Furthermore, it is a schematic front view which shows the display surface of the self-luminous gaze guidance mark which changed arrangement | positioning and number of red LED and blue LED.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 5, a self-luminous line-of-sight guide mark 1 according to an embodiment includes a plurality of light emitters 31, a power storage unit 35, The control board 39, the reflection sheet 44, the packing 25, the desiccant 27, the screw 29, and the case 3 surrounding the periphery are configured. The control board 39 is connected to the light emitter 31 and the power storage unit 35 so as to hold the light emitter 31 and the power storage unit 35, and also includes a constant voltage charging circuit 40, a day / night discrimination circuit 41, and a blinking control circuit 42. (See FIG. 8).

  Further, as shown in FIGS. 1 and 5, the control base 39 has a disk shape corresponding to the circular display surface (front surface) 10 a of the light emitter (LED) 31 in the line-of-sight guide 1, and each light emitter 31 is moved forward. Each light emitter 31 is held on the front surface 39a side so as to protrude, and each power storage unit 35 is held on the rear surface 39b side so that each power storage unit 35 protrudes rearward. Each power storage unit 35 is used in a substantially cylindrical shape and is distributed in a point-symmetric manner so that six power storage units 35 are used and are equally arranged vertically and horizontally on the rear surface 39b side of the control base 39. (See FIG. 6). In the case of the embodiment, four power storage units 35 are arranged side by side along the left-right direction with the axial direction along the up-down direction, and one power storage unit 35 is placed on the top and bottom of each of the power storage units 35 in the left-right direction. Arranged along the direction. Further, the control base 39 is provided with an insertion hole 39c through which a mounting boss 20 described later is inserted.

  The constant voltage charging circuit 40 is operated to charge each power storage unit (electric double layer capacitor in the embodiment) 35 with an electromotive force generated by the solar cell 37 at a predetermined voltage, and the day / night discrimination circuit 41 is a solar cell. If the signal is from a day / night discrimination sensor (not shown) such as a sensor for detecting an electromotive force 37 or a phototransistor, the signal is output to the blinking control circuit 42 at night. The blinking control circuit 42 causes the light emitter 31 to blink at a predetermined interval. In the case of the embodiment, the blinking control circuit 42 blinks red LEDs 32 and blue LEDs 33 (described later) of the light emitter 31 alternately (360 times / minute). In other words, the red LED 32 and the blue LED 33 blink alternately at 180 times / minute.

  In the embodiment, the light emitter 31 is composed of five red LEDs 32 and four blue LEDs 33. One red LED 32 is arranged at the center of the disk-shaped control board 39, and is arranged at a radial position shifted by 45 ° from the upper, lower, left and right arrangement positions around the center LED 32c. Are arranged radially in the vertical and horizontal directions around the central LED 32c. That is, the four red LEDs 32 and the four blue LEDs 33 excluding the central LED 32c are alternately made equal along the circumferential direction with the central LED 32c as the center (45 ° centering on the central LED 32c). They are arranged in a single ring shape. The disk-shaped reflection sheet 44 and the front cover portion 11 on the front side thereof have a diameter D0 (see FIG. 1) of about 100φ.

  Further, as the red LED 32, a red LED having a peak wavelength of 623 nm, a yellow LED having a peak wavelength of 590 nm, or an LED that emits red light having a wavelength therebetween can be used. As the blue LED 33, a blue LED having a peak wavelength of 470 nm, a blue-green LED having a peak wavelength of 490 nm, or a device emitting blue light having a wavelength therebetween can be used.

  The case 3 includes an upper storage portion (solar cell storage portion) 4 in which the solar cells 37 are stored, and a lower storage portion 8 on the lower side. The lower storage portion 8 includes a disc-shaped main body portion 10 that covers the control base 39 and a trapezoidal plate-shaped connection portion 9 that connects the main body portion 10 and the upper storage portion 4.

  The main body 10 is formed in a disc shape having the front surface 10 a as the display surface of the light emitter 31. And in the main-body part 10, the control base | substrate 39 holding the light-emitting body 31 and the electrical storage body 35 has the front surface 39a along the vertical direction, and each light-emitting body 31 faces the front surface 10a side. Are arranged. A transparent front cover portion 11 that covers the light emitter 31 is disposed on the front surface 10 a that covers the control base 39 of the main body portion 10.

  As shown in FIGS. 1 and 5, the front cover portion 11 is formed with a light source cover portion 12 for diffusing emitted light corresponding to each of the red LED 32 and the blue LED 33 of each light emitter 31. Yes. Each light source cover portion 12 includes a lens portion 13 and a rib 14. The lens unit 13 is formed in a convex meniscus lens shape in which both the outer side surface 13a and the inner side surface 13b protrude forward on the front side of each light emitter 31 (each of the red LED 32 and the blue LED 33). (See FIG. 5). Incidentally, in the case of the embodiment, both the outer side surface 13a and the inner side surface 13b of the lens portion 13 have an arc surface with a radius R of 8.1 mm. The rib 14 has a cylindrical shape that surrounds each of the light emitters 31, surrounds each of the red LEDs 32 and the blue LEDs 33, and extends rearward from the outer peripheral edge 13 c of the lens portion 13. The rear end surface 14a of each rib 14 is in contact with the front surface 39a of the control board 39 with a reflection sheet 44 interposed therebetween. The rib 14 is disposed on the outer peripheral side of the outer edge 13aa so as to surround the outer edge 13aa (outer peripheral edge 13c) of the outer surface 13a, extends rearward, has a thickness dimension t of 1.5 mm, and a length dimension L. 10 mm. The diameter D1 (see FIG. 1) of the outer edge 13aa is 15φ.

  The reflection sheet 44 reflects the received light when receiving light from a vehicle headlight or the like. In the embodiment, the reflection sheet 44 is a prism-type yellow high-intensity reflection sheet provided with prism grooves. Each light emitter 31 is provided with a through-hole 44b, and the light emitter 31 is protruded from each through-hole 44b so as to be disposed in the entire area of the control base 39 on the front surface 39a side. Further, the reflection sheet 44 is also formed with an insertion hole 44c through which a mounting boss 20 described later is inserted.

  The front cover unit 11 is provided with a flat smooth portion 16 around the light source cover unit 12.

  The upper storage portion (solar cell storage portion) 4 is formed in a rectangular plate shape substantially in the horizontal direction, and is inclined to the front lower side with the upper surface 4a side toward the front end 4b side. And the upper accommodating part 4 is formed in the bowl shape which protrudes ahead from the upper direction of the connection part 9 so that the front may be covered from the upper direction of the front cover part 11 which covers the light-emitting body 31 in the lower accommodating part 8. FIG. Further, the upper storage portion 4 arranges the solar cells 37 along the horizontal direction, and the transparent upper surface cover portion 5 covering the solar cells 37 is lowered forward so that rainwater can flow down above the solar cells 37. It is inclined to.

  The case 3 includes a front case portion 18 on the front surface side and a rear case portion 22 on the rear surface side. In the case of the embodiment, the rear case portion 22 is made of a flat metal plate such as aluminum, and a mounting tool 24 for installing the self-luminous line-of-sight guide 1 on a predetermined road is provided on the rear surface. Is formed. Further, the rear case portion 22 is formed with an attachment hole 23 for coupling with the front case portion 18.

  The front case part 18 forms the whole area except for the rear side of the upper storage part 4 and the lower storage part 8 described above. In the case of the embodiment, the front case part 18 is made of a synthetic resin such as transparent polycarbonate. Further, the front case portion 18 is provided with a plurality of mounting bosses 20 for coupling with the rear case portion 22, and the outer peripheral edge 22a of the rear case portion 22 is fitted to the outer peripheral edge. A peripheral assembly seat 19 that is recessed with a step is formed. The mounting bosses 20 are formed at a total of six locations, four locations on the periphery of the main body portion 10 near the red LED 32 on the outer peripheral edge side, and two locations near the left and right ends of the upper storage portion 4. Arranged inside the seat 19. Then, when the rear case portion 22 is coupled to the front case portion 18, screws 29 are screwed into the respective attachment bosses 20 through the attachment holes 23 of the rear case portion 22. At the time of the screwing, the outer peripheral edge 22a of the rear case portion 22 is fitted to the peripheral assembly seat 19 of the front case portion 18 with the outer peripheral edge 25a of the packing 25 interposed therebetween, so that the inside of the case 3 is inside. A watertight state will be secured. The four mounting bosses 20 of the main body 10 are inserted into the insertion holes 39c of the control base 39, and regulate the movement of the control base 39 in the vertical and horizontal directions, thereby positioning the control base 39 with high accuracy. Also plays.

  The control base 39 is protruded from the front surface 39a by positioning these mounting bosses 20 in the vertical and horizontal directions and by positioning in the front-rear direction by contact with the rear end surface 14a of the rib 14 with the reflection sheet 44 interposed therebetween. The light emitting part 31a of each light emitting body (LED) 31 can be accurately arranged at the focal position of the lens unit 13.

  Further, in the front case portion 18, a portion other than the transparent upper surface cover portion 5 and the front cover portion 11 is externally formed as an opaque portion 21 provided with wrinkles so that the inside cannot be seen. It is configured so that it cannot be seen.

  The packing 25 is made of rubber or synthetic resin that can ensure sealing performance. In the case of the embodiment, the packing 25 has a plate shape in which the outer peripheral edge 25 a has the same shape as the outer peripheral edge 22 a of the rear case part 22, and includes an extending part 25 c extending from the outer peripheral edge 25 a to the inside of the case 3. Configured. Similar to the rear case portion 22, the packing 25 has an attachment hole 25 b that allows the screw 29 to pass therethrough. Incidentally, when the front case 18 and the rear case 22 are coupled, the packing 25 presses the outer peripheral edge 25a against the peripheral assembly seat 19 and the outer peripheral edge 22a of the rear case 22, and around the screw 29. In addition, since the peripheral edge of the mounting hole 25b is brought into pressure contact with the mounting boss 20 and the rear case portion 22, the inside of the case 3 can be stably and watertight.

  The extending portion 25c of the packing 25 extends to the vicinity of the power storage unit 35 and is provided with vertical and horizontal bar-shaped, that is, a cross-shaped storage hole 25d.

  The desiccant 27 is formed in a cross-shaped sheet shape so as to be prevented from being displaced in the vertical and horizontal directions and to be stored while being regulated in the storage hole 25d. This sheet-like desiccant 27 is formed into a sheet shape by adding silica gel, calcium chloride or the like to a resin sheet or non-woven fabric, and has some elasticity. Then, the sheet-like desiccant 27 is positioned in the extending portion 25c of the packing 25 when the front case portion 18 and the rear case portion 22 are coupled in a state of being accommodated in the accommodation hole portion 25d of the packing 25. Thus, the control board 39 is disposed on the rear surface 39b side. Furthermore, in the embodiment, at this time, the sheet-like desiccant 27 presses the control base 39 together with the power storage unit 35 toward the rear end surface 14a side of the rib 14 of the front case portion 18 with the reflective sheet 44 interposed therebetween. In cooperation with the front case portion 18, the structure is held and held. At this time, the power storage bodies 35 arranged evenly distributed vertically and horizontally on the rear surface 39b side of the control base 39 do not tilt the control base 39 forward and backward with respect to the ribs 14, and the front case portion 18 is pressed against the rib 14 side.

  Then, as shown in FIGS. 9A to 9C, the solar cell 37, the reflection is made while the parts are connected to each other with a predetermined lead wire (not shown) in the upper housing portion 4 and the lower housing portion 8 in the front case portion 18. The control base 39 in which the sheet 44, the light emitter 31 and the power storage unit 35 are assembled is disposed, and the packing 25 containing the sheet-like desiccant 27 is placed thereon, and the rear case portion 22 is further placed thereon. If the screws 29 are screwed onto the mounting bosses 20 through the mounting holes 23 and 25b, the front case portion 18 and the rear case portion 22 can be coupled to ensure water tightness and form the case 3. If the case 3 is formed, the self-luminous line-of-sight guide 1 of the embodiment can be manufactured, and then disposed on a predetermined road.

  In the self-luminous line-of-sight guide 1 of this embodiment, the red LED 32 and the blue LED 33 are alternately blinked by the daytime / night discrimination circuit 41 using the power storage unit 35 as a power source at night. In the self-luminous line-of-sight guidance mark 1, one red LED 32 serves as a central LED 32 c disposed at the center of the front surface 10 a of the main body 10 serving as a circular display surface of the light emitting body (LED) 31. The red LED 32 and the blue LED 33 are arranged equally and alternately along the circumferential direction with the center LED 32c as the center. Therefore, in the self-luminous gaze guidance mark 1 according to the embodiment, the red LED 32 excellent in shape recognition and the blue LED 33 excellent in presence recognition are driven on a road in bad weather such as fog or rain. It is possible for a driver to visually recognize it well.

  By the way, Table 1 shows a result of comparison between the line-of-sight guide mark 1 of the embodiment and a comparative example in which the arrangement and the number of the red LEDs 32 and the blue LEDs 33 are changed by the paired comparison method.

なお、表１や図１０に示すように、Ａ（視線誘導標Ａ）は、中央に赤色系ＬＥＤ３２を設けて、その周囲に５個の青色系ＬＥＤ３３を設けて、交互に、点滅させたものである。Ｂ（視線誘導標Ｂ）では、視線誘導標Ａと逆の構成であって、中央に青色系ＬＥＤ３３を設けて、その周囲に５個の赤色系ＬＥＤ３２を設けて、交互に、点滅させたものである。

In addition, as shown in Table 1 and FIG. 10, A (Gaze guidance mark A) is provided with a red LED 32 in the center and five blue LEDs 33 around it, and alternately blinking. It is. B (line-of-sight guide mark B) has a configuration opposite to that of line-of-sight guide mark A, and is provided with a blue LED 33 in the center and five red LEDs 32 around it, and alternately blinks. It is.

  C (line-of-sight guidance mark C) is provided with a red LED 32 in the center, and three red LEDs 32 and blue LEDs 33 are alternately and alternately arranged around the red LED 32 and the blue LED 33. And are blinking alternately. D (line-of-sight guidance mark D) has a configuration opposite to that of the line-of-sight guidance mark C, and a blue LED 33 is provided in the center, and three red LEDs 32 and blue LEDs 33 are alternately and alternately arranged around the LED. The red LED 32 and the blue LED 33 are alternately blinked by being disposed.

  E (line-of-sight guide mark E) is the same as the line-of-sight guide mark 1 of the embodiment, and a red LED 32 is provided at the center, and four red LEDs 32 and blue LEDs 33 are alternately arranged around the LED. The red LED 32 and the blue LED 33 are alternately blinked. F (line-of-sight guidance mark F) has a configuration opposite to that of the line-of-sight guidance mark E, and a blue LED 33 is provided at the center, and four red LEDs 32 and blue LEDs 33 are alternately arranged around the LED. The red LED 32 and the blue LED 33 are alternately blinked by being disposed.

  In addition, each of the line-of-sight guidance marks A to F was a 100φ type, and was tested at an indoor test site that is 40 m away from the subject and installed at a height of 90 cm and can be in the same state as at night. The blinking of the red LED 32 and the blue LED 33 is 360 times / minute as in the embodiment.

  Furthermore, the test is performed in normal time and in dense fog, and the numerical values of 1 to 9 in the evaluation are based on the following criteria.

1: Both are conspicuous as much as 3: The front is slightly more prominent than the rear 5: The front is more prominent than the rear 7: The front is much more prominent than the rear 9: The front is rear In Table 1, weights are calculated and described using a predetermined calculation formula of the paired comparison method based on this evaluation.

  As can be seen from Table 1, when attention is paid to the weight for comparison of visibility, the line-of-sight guides A, B, and D in which a small number of light emitters (LEDs) are used and the red LED 32 is not arranged in the center are used. Is not weighted. On the other hand, weights are concentrated on the line-of-sight guidance marks E and F using nine LEDs, and the line-of-sight guidance marks E and F are conspicuous. With regard to the amount of LED used, there is no difference between the six and seven line-of-sight guides A to D unless the red LED 32 is arranged at the center. Moreover, in the usage-amount of LED, regarding the line-of-sight guidance marks C-F, there is a large difference between 7 and 9. Furthermore, in the color arrangement, if the red LED 32 is arranged at the center and the red LED 32 is more than the blue LED 33 as a whole, it will be conspicuous. In particular, in the line-of-sight guides C and E, fog is generated. It seems to be effective even in bad weather.

  That is, a red LED 32c is arranged at the center of the display surface 10a of the light emitter (LED) 31, and three or more red LEDs 32 and blue LEDs 33 are alternately arranged along the circumferential direction around the red LED 32c. If the blue LED 33 is not arranged in the center of the display surface 10a, three or more blue LEDs 33 are arranged radially around the central LED 32c. 1 and the conspicuous red LED 32 is arranged in the center of the display surface 10a and three or more red LEDs 32 are arranged around the red LED 32. It can be seen that the number of LEDs 32 is increased, and the total number of LEDs can be ensured at least in normal weather as well as in bad weather such as dense fog.

  Therefore, in the self-luminous gaze guidance mark 1 of the embodiment, the driver traveling on the road can be favorably visually recognized during bad weather such as fog or rain.

  Furthermore, in the self-luminous line-of-sight guidance mark 1 of the embodiment, the four red LEDs 32 and the blue LEDs 33 are evenly distributed along the circumferential direction around the central LED 32c disposed at the center of the display surface 10a. In addition, when the display surface 10a has a circular shape, the center LED 32c preferably has a configuration similar to the display surface 10a without using a wasteful display area. Around the periphery, a red LED 32 and a blue LED 33 can be arranged.

  Therefore, the self-luminous gaze guidance mark 1 of the embodiment can be used with good visibility in bad weather even if the display surface 10a is circular.

  In the embodiment, the red LED 32 is provided at the center, and four red LEDs 32 and blue LEDs 33 are alternately and alternately arranged around the red LED 32. As described above, a red LED 32 is provided in the center, and three red LEDs 32 and blue LEDs 33 are alternately and alternately arranged around the periphery, or a red LED 32 is provided in the center and the periphery thereof. Alternatively, five or more red LEDs 32 and blue LEDs 33 may be disposed alternately and evenly.

  Further, in the embodiment, the red LEDs 32 and the blue LEDs 33 are alternately and evenly arranged around the central LED 32c in a single annular shape along the circumferential direction. The red LEDs 32 and the blue LEDs 33 may be arranged alternately and evenly in a double or triple manner. For example, like the line-of-sight guidance signs G and H shown in FIG. 11, three red LEDs 32 and three blue LEDs 32 are arranged in the first annular portion C1 close to the center LED 32c as a double ring centering on the center LED 32c. The red LEDs 32 and the blue LEDs 33 may be arranged alternately and evenly in the second annular portion C2 around them. In addition, the difference between the line-of-sight guidance marks G and H is that the first annular portion C1 is arranged so as to be shifted by an angle of 30 °.

  However, as in the embodiment, if the single LED is used as a single layer, the number of red LEDs 32 and blue LEDs 33 to be used can be reduced to 9 or less, such as 3 or 4 except for the central LED 32c. In addition, it can be suitably used as a substitute for a line-of-sight guidance sign of 70 to 100φ of a reflector type that is not self-luminous installed on the road.

  Note that when the red LED 32 and the blue LED 33 are arranged evenly and alternately around the central LED 32c as the center, as long as an annular image can be generated at the time of lighting, it is not necessarily limited to 1 as in the embodiment. The red LEDs 32 and the blue LEDs 33 do not have to be alternately arranged. For example, one of the red LEDs 32 and the blue LEDs 33 may be repeatedly arranged along the circumferential direction equally as two or more. The red LED 32 and the blue LED 33 are alternately arranged, or the same number or a plurality of different numbers are repeatedly circulated evenly around the central LED 32c. Alternatively, a predetermined number of red LEDs 32 and blue LEDs 33 may be alternately arranged along the circumferential direction.

  Further, in the self-luminous line-of-sight guidance mark 1 of the embodiment, the red LED 32 and the blue LED are each covered with a transparent light source cover part 12, so that the light source cover part 12 can diffuse light at the time of light emission. Each includes a predetermined lens portion 13 and a cylindrical rib 14. The lens unit 13 has a convex meniscus lens shape in which both the outer side surface 13a and the inner side surface 13b protrude forward on the front side of each of the red LED 32 and the blue LED 33, and the rib 14 includes the red LED 32 and the red LED 32. Each of the blue LEDs 33 is surrounded by a cylindrical shape extending inward from the outer peripheral edge of the lens unit 13.

  Therefore, the lens unit 13 is configured by a convex lens that diffuses light of the LEDs 32 and 33 that are difficult to diffuse from the entire region of the lens unit 13, and further, as a meniscus lens, also in the vicinity of the outer peripheral edge 13c of the lens unit 13. In addition, it is possible to suppress a decrease in luminance and diverge light, and it becomes easy to visually recognize the light of the LEDs 32 and 33 not only from the front surface of the display surface 10a but also from an oblique direction with respect to the display surface 10a. That is, with such a configuration, it is possible to secure the bright brightness and the wide visual field range of the red LED 32 and the blue LED 33 as much as possible. Further, a transparent cylindrical rib 14 is provided on the outer peripheral edge 13 c of the lens portion 13 so as to wrap the LEDs 32, 33, and the light that diverges around the LEDs 32, 33 is also the inner peripheral surface of the rib 14. 14b and the outer peripheral surface 14c are reflected (see FIG. 5), and can be emitted from the lens unit 13 side, so that the LEDs 32 and 33 can be further illuminated from the entire lens unit 13. In the case of the embodiment, the outer peripheral surface 14c of the rear half of the rib 14 in the front-rear direction is formed with a texture that irregularly reflects the light of the LEDs 32 and 33. Further, using the irregular reflection of the texture, It becomes possible to increase the luminance of the LEDs 32 and 33 emitted from the lens unit 13.

  In the embodiment, the case where the diameter D1 to the outer peripheral edge 13c (outer edge 13aa) of the lens unit 13 is set to about 15φ has been described. However, if the entire region of the lens unit 13 having a convex meniscus lens shape can be illuminated, the lens The diameter dimension D1 of the portion 13 may be appropriately set within a range of 10 to 20φ. Of course, in the line-of-sight guide having such a configuration, it is preferable that six or eight LEDs 32 and 33 are alternately arranged in an annular shape around the center LED 32c on the display surface 10a of about 70 to 100φ. In addition, the visibility from the driver can be ensured. Incidentally, if the lens portion 13 has a diameter D1 of less than 10φ, it is difficult to diffuse the light of the LED 31, and conversely if the lens portion 13 has a diameter D1 of more than 20φ, the brightness of the LED 31 decreases. Inviting, it is not preferable, and the diameter dimension D1 of the lens portion 13 is desirably within a range of 10 to 20φ.

  Furthermore, in the embodiment, the display surface 10a of the line-of-sight guide 1 is configured by providing a transparent front cover part 11 in which a light source cover part 12 is disposed, and a red LED 32 and a rear side of the front cover part 11 A reflection sheet 44 that projects the blue LED 33 forward and has the front surface 44a in contact with the rear end surface 14a of the rib 14 to reflect light from the front is disposed. Therefore, in the line-of-sight guide 1 of the embodiment, the light received by the display surface 10a can be reflected even in the daytime when the LEDs 32 and 33 are not emitting light, and the driver can visually recognize the line-of-sight guide 1. Can do. Further, when the LEDs 32 and 33 emit light, the light reflected through the reflection sheet 44 can also be emitted from the lens unit 13 side using the inner peripheral surface 14b and the outer peripheral surface 14c of the rib 14 of the light source cover unit 12. The LED 32 and 33 can be made to emit light from the entire lens unit 13.

  In addition, in the reflective sheet 44 of embodiment, although the yellow thing was illustrated, what is colored in various colors, such as white, orange, and also red, blue, green, etc. can be used other than that.

  Furthermore, in the self-luminous line-of-sight guidance mark 1 of the embodiment, the light emitter 31 is provided on the front surface 39a side, the power storage body 35 serving as the power source of the light emitter 31 is provided on the rear surface 39b side, and the light emitter 31 blinks at night. A control base 39 that is controlled so as to cause the solar battery 37 to be charged by the sunlight and charged in the power storage unit 35, and a case 3 that houses the control base 39 and the solar battery 37. . The case 3 includes the front cover portion 11 and includes the front case portion 18 that covers the light emitter 31, the reflection sheet 44, and the solar cell 37, and the rear case portion 22 on the rear side. The front case portion 18 and the rear case portion 22 are combined with the packing 25 interposed therebetween so that the inside of the case 3 is watertight, and the desiccant 27 is disposed in the case 3. ing.

  That is, in the self-luminous line-of-sight guidance mark 1 of the embodiment, the inside of the case 3 is made watertight using the packing 25, and the desiccant 27 is further arranged in the case 3. Therefore, when closing the case 3 at the beginning of manufacture, even if water vapor is contained in the case 3, the water vapor in the case 3 is absorbed by the desiccant 27 and is condensed when the temperature is lowered at night. Water vapor is eliminated as much as possible, so that dew condensation and fogging on the rear surface 11a side (back surface side) of the front cover portion 11 covering the light emitter (LED) 31 can be suppressed, and visibility of the light emitter 31 during light emission is not hindered. By the way, if condensation or fogging occurs on the rear surface (inner side surface) 13b side of the light source cover part 12, the light of the blue LED 33 can easily reduce the visibility compared to the light of the red LED 32. Such dehumidification in the case 3 with the desiccant 27 is suitable for the self-luminous line-of-sight guidance mark 1 provided with the blue LEDs 33. Of course, in this case, since the case 3 maintains the watertight state using the packing 25, rainwater does not enter the case 3, and the rear surface 11a of the front cover part 11 covering the light emitter 31 stably. Condensation on the side can be prevented.

  Further, in the embodiment, the packing 25 is provided with an extending portion 25c extending from the outer peripheral edge 22a of the front case portion 18 and the rear case portion 22 to the inside of the case 3, and the desiccant 27 is arranged in a sheet shape. In addition, the position of the extended portion 25c is restricted, and the control base 39 is disposed on the rear surface 39b side. Then, at least one of the packing 25 and the desiccant 27 (in the case of the embodiment, the desiccant 27) has the reflective sheet 44 interposed between the front case part 18 and the rear case part 22 to store the electricity. The control base 39 together with the body 35 is pressed against the rear end face 14a side of the rib 14 of the front case portion 18, and is held and held in cooperation with the rib 14 of the front case portion 18. Further, each power storage unit 35 can be pressed toward the front case portion 18 without tilting the control base 39 forward or backward with respect to each rib 14 when the front case portion 18 and the rear case portion 22 are coupled to each other. The control board 39 is evenly arranged on the rear surface 39b side.

  Therefore, in the embodiment, the sheet-like desiccant 27 is disposed on the rear surface 39b side of the control base 39 in a plane shape parallel to the front cover portion 11 that covers the light emitter 31. The moisture inside can be absorbed accurately. In such a configuration, the control base 39 provided with the light emitter 31 and the power storage unit 35 may not be attached to the front case portion 18 and the rear case portion 22 of the case 3 separately using screws or the like. The number of parts, man-hours, and cost for attaching the control base 39 to the case 3 can be reduced. Further, since the plurality of power storage bodies 35 can press the control base 39 toward the front case portion 18 without tilting the control base 39 back and forth with respect to the ribs 14, the light of each light emitting body (LED) 31 is stabilized. Thus, the light can be emitted forward through the light source cover 12.

  In the case of the embodiment, since the front surface 39a of the control base 39 and the front surface 44a of the reflection sheet 44 have fine irregularities, the area between the lens portion 13 on the inner peripheral side of the rib 14 and the reflection sheet 44 is If the area is damp, the desiccant 27 will absorb moisture.

In the embodiment, a total of nine dispersed ribs 14 have a structure in which the reflection base 44 is interposed to support and support the control base 39, and the main body portion 10 is formed by the rigidity of the cylindrical ribs 14. The rigidity of the gaze guidance mark 1 can be increased. ,
Furthermore, although the case where the electrical storage body 35 was pressed by the desiccant 27 was shown in the embodiment, the electrical storage body 35 is pressed by the packing 25 when the case 3 is coupled, or the desiccant 27 and the packing 25 are used in combination. The power storage unit 35 may be pressed.

  Furthermore, in the embodiment, the solar cell storage portion (upper storage portion) 4 that stores the solar cell 37 in the case 3 is formed in a bowl shape so as to protrude forward above the front cover portion 11. The solar cell 37 is disposed along a substantially horizontal direction, and the transparent upper surface cover portion 5 that covers the solar cell 37 is tilted forward and downward so that rainwater can flow over the solar cell 37, It is composed. Therefore, in the embodiment, since the upper part of the front surface side of the light emitter 31 is covered with the bowl-shaped upper storage portion 4, the front cover portion 11 covering the light emitter 31 can be prevented from being stained with rainwater, and Even in twilight, the light of the light emitter 31 can be made clear. Further, since the upper surface cover portion 5 of the upper storage portion 4 is inclined forward and it is difficult to store rainwater, the solar cell 37 immediately receives sunlight in the fine weather after the rain, Can be charged.

  In addition, although the case where the electromotive force of the solar cell 37 was utilized for the power supply which light-emits the light-emitting body (LED) 31 in embodiment, the light-emitting body 31 using a commercial power supply or the power supply of a wind power generation was shown. May be emitted.

  Moreover, although the case where the display surface 10a of the light emitting body (LED) 31 was circular was shown in the embodiment, the external shape of the display surface 10a is elliptical, triangular, or square depending on the installation location. You may change into polygonal shapes, such as.

1 ... Spontaneous gaze guidance mark,
3 ... Case,
4 ... (solar cell storage) upper storage,
5. Top cover part,
10a (display surface) front surface,
11 ... Front cover part,
12: Light source cover,
13 ... Lens part,
13a ... outer surface,
13b ... inside surface,
14 ... ribs,
14a ... rear end surface,
18 ... front case part,
22 ... rear case part,
25 ... packing,
25c ... Extension part,
27 ... (sheet-like) desiccant,
31 ... illuminant,
32 ... Red LED,
32c ... Central LED,
33 ... Blue LED,
35 ... Accumulator,
37 ... solar cell,
39 ... Control infrastructure,
44: Reflective sheet.

Claims (6)

A plurality of light emitters are self-luminous line-of-sight guidance signs each composed of a red LED and a blue LED flashing alternately,
One red LED is a central LED arranged at the center of the display surface of the light emitter,
Three or more of the red LED and the blue LED other than the central LED are used, respectively, and are arranged equally and alternately around the central LED along the circumferential direction. And further
Each of the red LED and the blue LED is covered with a transparent light source cover,
The light source cover part can diffuse light at the time of light emission,
A convex meniscus lens-shaped lens part in which both the outer surface and the inner surface protrude forward on the front side of each of the red LED and the blue LED,
A cylindrical rib that surrounds each of the red LED and the blue LED and extends rearward from the outer peripheral edge of the lens unit;
Self-luminous delineator, characterized in that it is constituted by arranging the.   The self-luminous line-of-sight guidance according to claim 1, wherein the red LED and the blue LED arranged in the circumferential direction around the central LED are arranged in a single annular shape. Mark. The display surface of the line-of-sight guidance mark is configured by providing a transparent front cover portion in which the light source cover portion is disposed,
A reflection sheet capable of reflecting light from the front by projecting the red LED and the blue LED forward and causing the front surface to abut the rear end surface of the rib behind the front cover. The self-luminous line-of-sight guidance mark according to claim 1 or 2 , wherein A control base for providing the light emitter on the front side, providing a power storage unit as a power source for the light emitter on the rear side, and controlling the light emitter to blink at night;
A solar cell that is generated by sunlight and charges the power storage unit;
A case for housing the control board and the solar cell;
And configured with
The case has the front cover part, and is composed of two parts, a front case part that covers the light emitter, the reflection sheet, and the solar cell, and a rear case part on the rear side.
The front case portion and the rear case portion are joined with a packing interposed between the case and a watertight state, and a desiccant is disposed in the case. The self-luminous line-of-sight guidance mark according to claim 3 . The packing includes an extending portion extending from the outer peripheral edge of the front case portion and the rear case portion to the inside of the case,
While the desiccant is disposed in a sheet shape, the position of the desiccant is regulated by the extended portion, and is disposed on the rear surface side of the control base,
When at least one of the packing and the desiccant is coupled to the front case portion and the rear case portion, the control sheet is placed together with the power storage unit with the reflective sheet interposed between the front case portion and the rear case portion. The rib is pressed against the rear end surface side, and in cooperation with the rib of the front case portion, is held and held,
The power storage unit can be pressed to the front case portion side without tilting the control base back and forth with respect to the ribs when the front case portion and the rear case portion are coupled to each other. The self-luminous gaze guidance mark according to claim 4 , wherein the self-luminous line-of-sight guidance mark is distributed on the rear side of the base. A solar cell storage unit for storing the solar cell in the case,
Above the front cover part, it is formed in a bowl shape so as to protrude forward, and
The solar cell is disposed along a substantially horizontal direction, and a transparent upper surface cover portion covering the solar cell is inclined upward and downward so that rainwater can flow over the solar cell,
The self-luminous line-of-sight guidance mark according to claim 4 or 5 , wherein the self-luminous line-of-sight guidance mark is configured.

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