JP2009098421A - Guiding display board and guiding display lamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase visibility by displaying a pictogram and character information in white when providing guiding display using an afterglow that a light accumulating material emits. <P>SOLUTION: A light accumulation type guiding display board 16 is equipped with a milky-white half plate 22, which transmits light that the light accumulating material 24 emits to emit white light to the outside, outside the light accumulating material 24 which emits accumulated light energy as the afterglow. Consequently, the pictogram and character information can be displayed in white, and visibility from a distance in a dark place and visibility of the guiding display in the presence of smoke are improved to more securely guide sufferers for refuge, so that the survival rate of the sufferers can be increased. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a guidance display board that performs guidance display in a dark place, and a power-saving guidance indicator lamp that is lit at night using power charged by solar power generation or the like in the daytime.

  Japanese Patent Application Laid-Open No. 11-259024 (Patent Document 1) discloses a guidance device that stands up on land facing a road and displays the direction in which an evacuation site exists at the time of a disaster using characters and figures. Is disclosed.

  The guidance device described in Patent Document 1 includes a guidance display board on which pictograms indicating character information such as “evacuation location” and the evacuation direction, a solar panel that performs solar power generation, and electric power generated by solar power generation. A control box having a battery for storing electricity, an LED light source for illuminating the guide display board from the outside using the electric power stored in the battery, and the guide display in the upper center standing from the underground A pair of left and right leg portions that hold the plate and hold the control box and the LED light source at the upper end are provided.

  The display guide part is an aluminum composite panel that forms the shape of the display guide part from the inside toward the surface, and a phosphorescent material that accumulates light energy emitted by sunlight or an LED light source and emits the afterglow. And a top coat layer formed of a transparent paint and a light-shielding film for drawing letters and pictograms.

  In the daytime, solar panels are used to generate solar power, and pictograms and text information are drawn on the information display board with a light-shielding film to show evacuation directions and precautions, names of nearby medical institutions and their locations, firefighting. Instruct the passers-by, such as the police.

  On the other hand, at night, the LED light source is continuously turned on at night and the guidance display is performed. This continuous lighting is continuously lighted for 6 hours after sunset, which is a time zone with a lot of traffic. After the 6 hours of continuous lighting, the flashing control of lighting for 1 second and turning off for 2 seconds is continued until dawn, and guidance display is performed while preserving the power stored in the battery. And it turns off automatically at dawn.

By performing lighting control of such LED light sources, even if an earthquake, storm and flood damage, or other disaster occurs and the night power outage continues in a wide area, the guidance device can function as an evacuation guidance sign. I can do it.
Japanese Patent Laid-Open No. 11-259024

  Since the afterglow emitted from the phosphorescent material of the guide device described in Patent Document 1 is transmitted through the transparent topcoat layer, the passerby directly recognizes the emission color of the phosphorescent material as it is. The afterglow emission color emitted from the phosphorescent material is yellow green, blue, purple, etc. when an oxidation phosphorescent material having good durability is used, and is not white. Among them, yellow green, which is relatively excellent in visibility, is frequently used for guidance display at the time of disaster, but this color is yellow-green color, so the visibility is not good. In particular, the visibility when viewing the guidance display from a distance in a dark place and the visibility of the guidance display in a situation where smoke drifts are inferior.

  The present invention provides a guidance display board and a guidance display lamp that improve visibility by displaying white pictograms and character information when performing guidance display using afterglow emitted from a phosphorescent material in a dark place. The purpose is that.

  In order to achieve the above-mentioned object, the main structure of the guide display board according to the present invention is to store a part of the light energy emitted by the light source, and to store the light energy as the afterglow. A white plate that transmits the afterglow of the phosphorescent material and emits white light to the outside is provided.

  Furthermore, it is preferable to use an acrylic milk half plate having a thickness of 0.7 to 1.5 (mm) as a material of the white plate, and a thickness of 1.5 to 2.5 (mm) as the phosphorescent material. It is preferable to use a sulfide-based phosphorescent material. Preferably, a protective transparent polycarbonate plate is disposed outside the white plate, and a pictogram coloring portion for guidance display is disposed outside the transparent polycarbonate plate.

  In order to achieve the above-mentioned object, the guidance indicator lamp according to the present invention uses a wide directional angle LED (Light Emitting Diode) having a directivity characteristic of emitted light of 90 ° or more as a light source for guidance display. The guide display board is disposed at a position 40 to 70 (mm) away from the light source.

  In addition, a solar panel that performs solar power generation during daytime sunshine, a battery that stores power generated by the solar panel, and a battery that stores power in a dark place such as at night. It is preferable to provide a controller that supplies electric power to the light source and further performs nighttime blinking control.

  Further, the guidance indicator lamp includes a vibration sensor for detecting an earthquake shake, and a controller that performs flashing control for an emergency with a short blinking cycle when the vibration sensor senses an earthquake shake. Is preferred.

  According to the display guide plate according to the present invention, for example, by arranging a white plate in front of a phosphorescent material that emits yellow-green light, it is possible to display guide displays such as pictograms and character information closer to white. It becomes. By displaying the guidance in white, visibility from a distance and visibility in a situation where smoke is drifting are improved, and in the event of an emergency such as an earthquake or fire, evacuation of the victim is more reliably performed. Can increase the survival rate of the victims.

  Further, by using an acrylic milk half plate having a thickness of 0.7 (mm) or more as the white plate material, the afterglow emitted by the phosphorescent material can be emitted closer to white. Furthermore, by using an acrylic milk half plate having a thickness of 1.5 (mm) or less as the white plate material, a predetermined amount of light can be secured and the brightness of the guide display plate can be increased. .

  Moreover, by using a sulfide-based phosphorescent material with a thickness of 1.5 to 2.5 (mm) as the material of the phosphorescent material, a predetermined amount of both the amount of afterglow and the amount of transmitted light emitted from the light source is secured. Thus, the brightness of the guidance display board can be increased.

  Moreover, it is preferable to arrange a transparent synthetic resin plate such as a transparent polycarbonate plate on the outside of the white plate to protect the white plate from an external environment such as wind and rain or ultraviolet rays. Further, in order to improve the visibility of the guidance display, it is preferable to arrange a pattern such as a pictogram coloring portion for guidance display on the outside of the transparent synthetic resin plate. Furthermore, it is preferable to form a guide display plate in which the phosphorescent material, the white plate, the synthetic resin plate, and the picture are integrated.

  Further, according to the guidance indicator lamp according to the present invention, a wide directional angle LED having a directivity characteristic of 90 ° or more is used as a light source for guidance display, and the guidance is provided at a position 40 to 70 (mm) away from the light source. By disposing the display board, it is possible to reduce the unevenness of the surface brightness of the display guide board when the light source is turned on and improve the visibility of the guide display. Further, light emitted from the plurality of light sources is diffused and transmitted inside the phosphorescent material and the white plate, and is emitted from the guide display plate. Therefore, it is possible to reduce and equalize the unevenness of the surface luminance caused by the arrangement of the light sources, and improve the visibility of the guidance display when the light sources are turned on.

  Also, when the surroundings are bright, solar power generation is performed using a solar panel, and the generated power is stored in the battery.When the surroundings become dark, the power stored in the battery is supplied to the LED light source. The flashing control for the night was performed. As a result, even if an earthquake, storm and flood damage, fire, or other disaster occurs and the power supply is cut off and the supply of commercial power is interrupted, the power consumption is low, so the evacuation guide sign is allowed to light for a long time. It becomes possible. In addition, the white display with high visibility and the blinking control that indicates that the guidance indicator lights are functioning normally can give a sense of security to the victims evacuating in the dark, so that they can evacuate calmly. Can help.

  In addition, when an earthquake shake is detected, flashing control for emergency with a short flashing cycle is performed, so it is possible to alert the victims in the dark and more reliably guide evacuation. it can.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a guide display board and a guide indicator lamp according to the present invention will be described below based on examples shown in the accompanying drawings.
FIG. 1 is an external view showing an embodiment in which a guide indicator lamp to which a guide display board according to the present invention is applied is installed on an upper portion of a support column that supports a “wide area evacuation site guide map”.

  As shown in FIG. 1, the guidance indicator lamp 10 is installed, for example, at the upper end of a support column 8 that is erected and fixed on the ground to ensure visibility from a relatively long distance. In the embodiment shown in FIG. 1, a pictogram indicating the direction of the wide area evacuation area and the distance to the wide area evacuation area are provided at the upper end of the support column 8 that supports the “wide area evacuation area guide map” representing the relationship between the current position and the evacuation area. A guidance indicator lamp 10 is provided which indicates character information for notifying the user.

  In general, pictograms and character information are displayed in white on a green background. In this case, during sunlight, the light source arranged inside the guidance indicator 10 is turned off, but by reflecting the irradiation light received from the outside such as sunlight, a pictogram drawn in white on a green background Character information is displayed.

FIG. 2 is an external view of the guidance indicator lamp 10 that emits light at night or during a disaster.
In dark places such as the new moon at night or in disasters where the lights do not turn on due to a power failure, the light source arranged inside the guide indicator 10 flashes, and the lighting light or phosphorescent material of the light source is A white pictogram and white character information can be displayed by the afterglow emitted.

  The guidance indicator lamp 10 is provided with a battery for storing electric power generated by the solar panel during daytime sunshine or electric power obtained from a commercial power source. The light source is caused to emit light using the electric power stored in. Thereby, it is possible to continue light emission even when the supply of energy from the outside is interrupted.

  Furthermore, to reduce the size of the battery and make the guide indicator 10 itself compact, it is possible to drive the LED for 15 hours or more continuously as a night light by using an LED with low power consumption as a light source and by controlling blinking. I have to. In order to satisfy the function as the guidance indicator lamp 10 while performing the blinking control of the light source, the pictogram and the character information portion must continue to emit light even while the light source is turned off. Therefore, in a state where the light source is turned on, a part of the light energy emitted by the light source is accumulated, and while the light source is turned off, a phosphorescent material that emits the accumulated light energy as an afterglow, It is provided inside the guidance indicator lamp 10.

The structure of the guide indicator lamp 10 will be described with reference to FIGS.
FIG. 3 is a front view of the guidance indicator lamp 10 according to the present invention, and is a diagram showing a cross section of the lower right portion so that the arrangement of the light sources can be seen. 4 is a side view of the guidance indicator lamp 10, and is a cross-sectional view taken along the line IV-IV shown in FIG.

  As shown in FIG. 3 and FIG. 4, on the front surface of the housing 12 in the guidance indicator lamp 10, a pictogram indicating the evacuation direction, character information for notifying that the evacuation site is a “wide area evacuation site”, and The display board 16 (guidance display board) which drew the character information which notifies the distance to a "wide area refuge place" is provided. In the embodiment shown in FIG. 3, the surface of the display plate 16 is made of a transparent polycarbonate 20 (transparent synthetic resin plate) that transmits white light and, for example, green light is transmitted to display pictograms and character information. It consists of a pictogram coloring section 18 (picture) for drawing as a picture.

  A solar panel 14 that generates electric power for causing the display plate 16 to emit light at night or in an emergency is disposed on the upper surface of the housing 12 of the guide indicator lamp 10 where the sunlight is efficiently irradiated. Note that the lower surface of the housing 12 is fastened to the upper end of the support column 8.

  Inside the housing 12 are a plurality of LEDs 30 (light sources) that irradiate the display plate 16 with light from the back, an LED substrate 28 to which the plurality of LEDs 30 are attached, and the power generated by the solar panel during daylight sunshine. Are stored, a vibration sensor 34 that senses an earthquake, and a controller 32 that performs charge control of the battery 36, lighting control of the LEDs 30, judgment of occurrence of an earthquake, and other control. A bottom plate 13 that holds the LED substrate 28 and covers the back surface of the housing 12 is attached to the back surface of the housing 12.

Next, the laminated structure of the display plate 16 of the guidance indicator lamp 10 will be described with reference to FIG.
The display panel 16 accumulates a part of the light energy emitted by the LEDs 30 from the inside of the guide indicator lamp 10 toward the surface, and a phosphorescent material 24 that emits the accumulated light energy as afterglow, and a phosphorescent material 24. A white milk half plate 22 that transmits the afterglow of light and emits it outside, a transparent polycarbonate 20 that protects the white milk half plate 22 and the phosphorescent material 24 from the external environment, and a pictogram coloring unit 18 that draws pictograms and character information It has.

  As the phosphorescent material 24, for example, a material obtained by pulverizing an oxidized phosphorescent material which is a long-term stable material and molding it into a plate shape can be used. The thickness of the phosphorescent material 24 is about 1.5 to 2.5 (mm) in order to ensure the amount of afterglow emitted by the phosphorescent material 24 itself while transmitting the light emitted by the LED 30. Is preferred.

  The luminous color of the phosphorescent material 24 may be relatively bright yellow green. Conventionally, since the afterglow of yellow green emitted from the phosphorescent material 24 is directly transmitted to the outside, it is difficult to see pictograms and character information.

  In the present invention, the white milk half plate 22 is disposed outside the phosphorescent material 24 to make the transmitted light close to white. Thus, by displaying the pictogram and the character information in white, the visibility of the pictogram and the character information can be enhanced both when the LED 30 is turned on and when the phosphorescent material 24 is emitted with afterglow. In particular, since the visibility from a distance can be improved, it is possible to more reliably guide the victim in an emergency. Moreover, even if there is a power outage in an underpass or a subway passage, and smoke is drifting due to the occurrence of a fire, the victim can be more reliably guided.

  The white milk half plate 22 is preferably made of an acrylic material having excellent translucency and strength. The thickness of the white milk half plate 22 is 0.7 to 1. in order to make the transmitted light close to white while maintaining the amount of transmitted light. It is preferable to use a thickness of about 5 (mm). Moreover, it is preferable to mix a diffusing agent into the white milk half plate 24.

  Since the polycarbonate 20 arranged on the front side of the white milk half plate 22 is used for the purpose of protecting the display board 16, a material having a thickness of about 2 (mm) subjected to weathering treatment is used. And in order to ensure the light quantity of the transmitted light used for a guidance display, it is preferable to use a synthetic resin board etc. with high transparency. Even if a polycarbonate material close to white is used instead of the white milk half plate 22, the amount of transmitted light is reduced, so it is difficult to improve the visibility of pictograms and character information. For the pictogram coloring portion 18 on the surface of the display board 16, for example, a cutting sheet material that transmits green may be used. Further, the phosphorescent material 24, the white milk half plate 22, the polycarbonate 20, and the pictogram coloring portion 18 may be configured to be separated from each other or may be configured to be in close contact with each other.

Next, the arrangement of the light sources of the guidance indicator lamp 10 will be described with reference to FIGS.
In order to make the surface brightness of the display panel 16 uniform and make it easy to see the guidance display, the LED 30 having a wide directivity angle θ is used as the light source. If the directivity angle θ is narrow, the arrangement of the LEDs 30 must be made dense, and the number of LEDs 30 needs to be increased. Increasing the number of LEDs 30 inevitably increases the power consumption during lighting, necessitating the use of a larger battery or solar panel, leading to the problem that the guide indicator 10 becomes larger and the price increases. . Therefore, it is good to use LED30 which has 90 degrees or more of directivity angles (theta) as a light source of the guidance indicator lamp 10. FIG. Preferably, an LED 30 having a directivity angle θ of about 110 ° may be used.

  As shown in FIG. 3, the LEDs 30 are preferably arranged so as to be staggered when viewed from the front to make the brightness of the display panel 16 uniform. In the embodiment shown in FIGS. 3 and 4, the directivity angle θ is set to about 110 °, and the height from the LED 30 to the phosphorescent material 24 is set to about 40 to 70 (mm), whereby the amount of light applied to the display board 16 is set. Is uniform.

  Further, since the white milk half plate 22 is arranged, the light emitted from the display board 16 is diffused before being emitted, so that the unevenness of the surface brightness of the display board 16 is further reduced. In addition, the external shape of the housing | casing 12 is a magnitude | size of planar view 300 (mm) x 300 (mm), and thickness is about 80 (mm). The LED 30 has 25 balls arranged in a range of about 230 (mm) × 230 (mm).

  Next, the display state of the display board 16 of the guidance indicator lamp 10 in the daytime and at night will be described.

  FIG. 5 is a diagram illustrating a display state of the display plate 16 at the time of turning on the light source at night or in the daytime. On the other hand, FIG. 6 is a diagram showing a situation in which pictograms and character information are displayed by the afterglow emitted from the phosphorescent material 24 when the light source is turned off at night.

  During the daytime when the surroundings of the guidance indicator lamp 10 are bright, the display unit 16 displays pictograms and character information by reflected light. Therefore, in the embodiment shown in FIG. 5, the pictogram coloring part 18 of the display board 16 reflects green, and the polycarbonate 20 part reflects white which is the color of the white milk half board 24 to draw pictograms and character information. Yes.

  When the guidance indicator lamp 10 is dark at night and the LED 30 that is blinking is lit, the display unit 16 displays pictograms and character information by transmitting the light emitted by the LED 30. To do. Also in this case, as shown in FIG. 5, the pictogram coloring portion 18 of the display panel 16 transmits green with low luminance, and the portion of the polycarbonate 20 transmits white. At this time, the phosphorescent material 24 accumulates a part of the light energy emitted by the LED 30.

  Moreover, when LED30 which is performing blink control is light-extinguished, the phosphorescent material 24 emits afterglow and displays a pictogram and character information (refer FIG. 6). At this time, the afterglow emitted by the phosphorescent material 24 is extremely weak compared to the light emitted by the LED 30, so that the pictogram coloring portion 18 emits extremely low-brightness green, and the polycarbonate 20 portion has a low-brightness white color. The pictogram and character information are displayed.

  At this time, even if the light emitted from the phosphorescent material 24 is yellow-green, it becomes a color close to white after passing through the white milk half plate 22 arranged outside the phosphorescent material 24, and white from the transparent polycarbonate 20 portion. It emits light of a color close to. Therefore, the visibility of pictograms and character information can be improved as compared with the conventional method in which yellow-green afterglow is emitted as it is for guidance display.

Next, a change state of the light emission amount when the blinking control of the light source is performed in the guidance indicator lamp 10 will be described with reference to FIGS.
FIG. 7 is a diagram showing the relationship between the time and the amount of light emitted when the blinking control for nighttime is performed during normal daytime and nighttime. FIG. 8 is a diagram showing the relationship between the time and the amount of light emitted when emergency flashing control is performed in an emergency such as after an earthquake or fire.

  As shown in FIG. 7, since the LED 30 is turned off during the daytime, the pictogram and character information of the display board 16 are displayed by reflecting the light around the guidance indicator lamp 10. When the surroundings become dark due to sunset or the like, for example, when the current flowing through a photocell such as a phototransistor provided for brightness detection decreases, the controller 32 determines that it has shifted to nighttime, and at time t1 shown in FIG. Then, blinking control of the LED 30 is started. Note that the time can also be used as a criterion for determining that it is nighttime.

  During normal nighttime, the LED 30 is turned on during Ton (= t2-t1), and the LED 30 is turned off during Toff (= t3-t2). For example, the lighting cycle is set to 20 (sec), with the lighting time Ton = 2 (sec) and the extinguishing time Toff = 18 (sec).

When the LED 30 is turned on, it has a luminance of about 170 (cd / m ² ), and can alert a passerby or a victim. Further, immediately after the LED 30 is turned off, there is a luminance of about 5.25 (cd / m ² ), and it is possible to continue displaying the evacuation direction and cautions.

In the guidance indicator lamp 10 according to the present invention, the luminance of 3.35 (cd / m ² ) is maintained even after about 18 (sec) has elapsed since the LED 30 was turned off. In addition, since it is said that the minimum brightness | luminance required for a disaster victim to visually recognize a guidance display is generally 1 (cd / m < ² >) or more, sufficient brightness is obtained. In addition, in the guidance indicator lamp 10 according to the present invention, the luminance of 1.73 (cd / m ² ) is maintained even after 80 (sec) has elapsed after the LED 30 is turned off, and 150 (sec) has elapsed. Even so, the luminance of 1.1 (cd / m ² ) is maintained. Therefore, in the guidance indicator lamp 10 according to the present invention, it is possible to further extend the extinguishing time Toff to reduce the power consumption of the guidance indicator lamp 10.

On the other hand, in an emergency, as shown in FIG. 8, the lighting cycle of the guidance indicator lamp 10 is set short to alert the victim. For example, when an earthquake occurs and the vibration sensor 34 senses a predetermined shake, or when a power failure occurs in an underground passage due to some factor, the controller 32 determines that it is an emergency and the lighting cycle of the LED 30 Performs blinking control that shortens. In the embodiment shown in FIG. 8, after detecting an earthquake at time t10 (sec), the LED 30 is turned on for TEon (= t11-t10), and the LED 30 is turned off for TEoff (= t12-t11). . For example, the lighting time TEon = 2 (sec) and the extinguishing time TEoff = 4 (sec) are set. The luminance when the LED 30 is turned on is about 170 (cd / m ² ), which is the same as the luminance shown in FIG. 7, and the luminance immediately after the LED 30 is turned off is about 5.25 (cd / m ² ). When TEoff = 4 (sec) or so, the next lighting is performed with almost no decrease in luminance. By shortening the lighting cycle, it is possible to raise the alert of the victim. In addition, the lighting cycle in normal times and emergency is not limited to the embodiment shown in FIGS. 7 and 8, and can be extended or shortened as appropriate.

Next, the power consumption of the guidance indicator lamp 10 according to the present invention will be described.
For example, suppose that 25 white LEDs 30 having a directivity angle θ = 110 °, a luminous intensity of 1400 (mcd), and a forward voltage of 3.3 (V) are used as a light source, and a current of 10 (mA) is supplied to each when lighting. . In this case, the current consumption at the time of lighting is about 250 mA, and it is 0.85 (W) at the time of lighting including the power consumption of the current limiting resistor of the LED 30. When the blinking control is further performed and (lighting time Ton: extinguishing time Toff) = (1: 9), the average is 0.085 (W), and even when the blinking control is performed for 14 hours, the LED 30 The work for lighting is about 1.19 (Wh).

  When the structure shown in FIG. 3 and FIG. 4 is adopted as the guide indicator lamp 10, if the LED 30 having a high luminous intensity is adopted or the LED 30 having a narrow directivity angle θ is adopted, the bright part of one LED bulb is used. However, it can be seen through from the front of the display board 16. When unevenness occurs in the surface brightness in this way, the visibility of pictograms and character information is reduced. Therefore, it is preferable to use the LED 30 with an appropriate luminous intensity and a wide directivity angle θ.

  As described above, the small-sized solar panel 14 having a maximum output of 1.2 (W) can be used by configuring the guide indicator lamp 10 so that the power consumption is reduced, and the battery 36 is also 2.4. A capacity of about (V), 4000 (mAh) is sufficient. Therefore, it is possible to provide a small, light and inexpensive guide indicator lamp 10.

  The guidance indicator lamp according to the present invention is disposed in streets such as parks, subways that are dark in the event of a power failure, and underground streets, and in the event of a night emergency or when a power failure occurs, evacuation guidance for the victims and various guidance Can be used for display. In addition, according to the guidance indicator lamp according to the present invention, even when the phosphorescent material emits afterglow, it is possible to perform guidance display by emitting white light, so even from a distance in the dark. In addition, guidance display can be performed more effectively even in a place where some smoke is drifting.

It is a figure showing the usage example which installed the guidance indicator lamp to which the guidance display board which concerns on this invention was applied in the upper part of the support | pillar which supports a "wide area evacuation site guide map". It is a figure which shows the condition where the guidance indicator lamp is light-emitting at night or at the time of a disaster. It is a front view of the guidance indicator lamp which concerns on this invention, and is the figure which took the cross section so that arrangement | positioning of a light source can be seen about the lower right part. It is a side view of a guidance indicator lamp, and is IV-IV arrow sectional drawing shown in FIG. It is a figure which shows the display condition of the display board at the time of the light source lighting at night, or daytime. It is a figure which shows the condition which is the time of the light source extinction at night, and is displaying the pictogram and character information by the afterglow which the phosphorescent material light-emits. It is a figure which shows the relationship between time and the light-emission quantity at the time of performing the blink control for nighttime in the daytime and nighttime at normal time. It is a figure which shows the relationship between time and the amount of light emission at the time of performing blink control for emergencys in emergency, such as after the occurrence of an earthquake and the occurrence of a fire.

Explanation of symbols

8 Support column 10 Guide indicator lamp 12 Case 13 Bottom plate 14 Solar panel 16 Display plate (Guide display plate)
18 Pictogram coloring section (pattern)
20 Polycarbonate (transparent synthetic resin plate)
22 White milk plate (white plate))
24 phosphorescent material 28 LED substrate 30 LED
32 Controller 34 Vibration sensor 36 Battery

Claims (9)

A phosphorescent material that accumulates part of the light energy emitted by the light source and emits the accumulated light energy as afterglow,
A white plate that transmits the afterglow of the phosphorescent material and emits white light to the outside;
A guidance display board characterized by comprising:   The guidance display board according to claim 1, wherein an acrylic milk half plate having a thickness of 0.7 to 1.5 (mm) is used as a material of the white board.   The guide display board according to claim 1 or 2, wherein a sulfide-based phosphorescent material having a thickness of 1.5 to 2.5 (mm) is used as the phosphorescent material. A protective transparent synthetic resin plate is disposed outside the white plate,
The guidance display board according to any one of claims 1 to 3, wherein a picture for guidance display is arranged outside the transparent transparent synthetic resin board. The transparent synthetic resin plate is a transparent polycarbonate plate,
The guide display board according to claim 4, wherein the guide display pattern is a pictogram coloring portion.   The guide display board according to claim 4 or 5, wherein the phosphorescent material, the white plate, the synthetic resin plate, and the pattern are integrally formed. A wide directivity LED (Light Emitting Diode) having a directivity characteristic of emitted light of 90 ° or more is used as a light source for guidance display.
A guide indicator lamp according to any one of claims 1 to 6, wherein the display guide plate according to any one of claims 1 to 6 is applied at a position 40 to 70 (mm) away from the light source. Solar panels that generate solar power during daylight hours,
A battery for storing electric power generated by the solar panel;
A controller that supplies power stored in the battery to the light source in a dark place such as at night, and further performs blinking control for night time;
The guidance indicator lamp according to claim 7, further comprising: A vibration sensor that senses the shaking of the earthquake,
A controller that performs flashing control for an emergency with a short flashing cycle when the vibration sensor senses an earthquake shake;
The guidance indicator lamp according to claim 8, further comprising:

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