JPS58127971A - Label - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] This invention is made of transparent plastic.

The present invention also relates to signs such as traffic signs using flexible round rod-shaped light guides.

Signs using light guides have recently been studied as an alternative to conventional signs whose display surfaces are coated with nighttime paint, and the present invention is one proposal in this regard.

Figure 1 shows the basic configuration of this invention, (1)
is a front plate formed using transparent plate glass or plastic, and (2) is a round rod-shaped light guide formed by one drive, which is formed from transparent plastic;
and has flexibility. And Dora) If the characters mentioned later.

It is the smallest unit of a symbol or figure (picture).

One end of the light guide is fixed to the back side of the front plate (1), and the other end is located at the light generating device (3).

That is, the light generating device 3) includes a light source (for example, a halogen lamp) (4) and a reflector (R]l1FLIjCTOR) (5) that reflects the light emitted from this light source (4).
The other end of the light guide (2) is located at the focal point of the reflector (5).

Therefore, when the light source (4) is turned on by power from the power source (6), the light enters from the other end of the light guide (2) and reaches one end.

FIG. 2 shows an example of a case where required display is performed based on the configuration shown in FIG. 1, and FIG. 2 shows a traffic sign.

By the way, in the case of traffic signs, one sign indicates the road condition (
Depending on traffic jams, accidents, snowfall, construction work, etc., it may be necessary to change the displayed content and thereby change the course of the vehicle (9) or close the road.

Conventionally, in such cases, people have replaced the signs with other signs or put up instruction boards with expiration dates, but replacing, arranging, and removing them takes time and effort.

This invention proposes a sign suitable for such a case, and FIG. 3 shows an example thereof. In Figure 3, (ri is the front plate, (2-1) -= (2-n) is the light guide, (3) is the light generator, (4) is the light source, (5) is the reflector, (e )Fi lightning source* (7-1)-(7-n) are optical switches, which are installed in the middle of each light guide.
Selection is controlled individually by a selection circuit (8). (9)
is a road condition monitoring sensor, and this sensor (9) detects the road condition.9 For example, if you want to know the amount of traffic congestion, you can use an ultrasonic sensor; Depending on the signal, the selection circuit (8) selectively controls the optical switch to change the display content to another one. In other words, 9 Normally, for example, the odd-numbered light switch is ON (the even-numbered light switch is OFF at this time), and a display indicating that 0 traffic is possible (the so-called normal display) is displayed.1 For example, in the case of snowfall, the even-numbered light switch The display changes to respond to changes in road conditions, such as displaying "Road Closed" using a dot made by a light guide that corresponds to a light switch.

That is, here, the display content by the odd-numbered light guide,
If there is a difference between the contents displayed by the even-numbered light guides, it is possible to change the contents displayed by the signal from the sensor.

Therefore, a single sign can display a plurality of different display contents, and the effort of preparing another sign can be saved.

Note that in the above explanation, odd-numbered and even-numbered light guides are used separately depending on the time of day, but there are various divisions, and it goes without saying that the combination of dots differs depending on the displayed content. According to this invention (according to this invention), one sign can display different display contents depending on the road condition, and i
The scope of use of am can be expanded.

By the way, as in this invention, the above-mentioned light guide.

Signs that combine a light source and a 9-sided envelope consume less power than conventional signs that use a light source and a 0 display mask (representing the shape of displayed characters, etc.). Illusory image that occurs when no electricity is applied (a phenomenon in which conventional signs appear as if they are lit due to the reflection of sunlight on the display mask surface, even though the light source is not lit under bright heavy rainfall) This makes it an extremely easy-to-read sign for drivers and others.

[Brief explanation of the drawing]

FIG. 1 is a diagram for explaining the basic configuration of this invention,
FIG. 2 is a diagram showing an example of display contents. FIG. 3 is a diagram showing an embodiment of the sign according to the present invention, in which (l) is a front plate, (2) is a light guide, and (4) is a light source. (51F1 reflector, (6) is a power supply, (7) is an optical switch, (8) is a selection circuit, and (9) is a sensor. In addition, the same or equivalent parts in Figure 9 are indicated with the same symbols. Agent: Shin Kuzuno −

Claims (1)

[Claims] A plurality of dots are formed by positioning one end of a plurality of round bar-shaped light guides made of transparent plastic and having flexibility on one side of a front plate made of transparent plate glass or plastic, A light switch controlled by a required sensor for monitoring road conditions is provided between one end and the other end of the light guide, and the other end of the light guide is a light generating device consisting of a light source and a reflector (RIFLlliCTOR). is positioned at the focal point of the reflector, and is configured to reflect light generated from the light source by the reflector and enter it from the other end of the light guide, and guide the incident light to one end of the light guide. A sign characterized in that the normal display is changed to a display corresponding to changes in road conditions detected by the sensor by controlling a light switch based on a detection signal from the sensor.