JPH0446989Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The invention is designed to enable other vehicles to see the vehicle.
The present invention relates to a reflective display device for a vehicle that reflects external incident light.

[Conventional technology]

2. Description of the Related Art Triangular display boards equipped with reflectors that are installed on roads, etc. to reflect the headlights of other vehicles have been well known in order to make the display visible when stopped on roads, etc. There are also hazard lights that flash for the same purpose.

[The problem that the idea aims to solve]

However, the former does not have a blinking function, and the latter cannot be used if the lamp is damaged due to an accident or the power supply becomes defective.

In view of these points, an object of the present invention is to provide a reflective display device for a vehicle that flashes and reflects externally incident light.

[Means to solve the problem]

In order to achieve this objective, the present invention places a solar panel and a reflector whose surface is covered with a light shutter whose opening/closing is controlled by an electrical signal on a base installed on a horizontal surface in a vertical direction. In addition to being juxtaposed, an optical shutter control circuit is attached which generates the periodic switching electric signal and supplies it to the optical shutter by being powered by a solar cell.

[Effect]

When external light enters the solar panel, the optical shutter control circuit is supplied with power and periodically generates an opening/closing electrical signal. As a result, the optical shutter performs opening and closing operations, and the reflector periodically reflects incident external light and reflects blinking light.

[Example of idea]

1 to 3 show a reflector device according to an embodiment of the present invention.

In FIG. 1, a reflective display device 10 has solar battery panels 12, 12a arranged on both sides of a support plate 11a vertically erected on a disc-shaped base 11 containing a built-in magnet 16. and a liquid crystal plate 13 as a light shutter on the surface,
Reflectors 14 and 14a covered by 13a are arranged and configured. The reflector is, for example, a yellow colored rectangular reflex reflector. An optical shutter control circuit 15 shown in FIG. 2 is housed in a space 11b formed in the middle of the support plate 11a.

In the figure, when head lamp light from another vehicle enters either of the solar panels 12, 12a, a power supply voltage is generated, and the light shutter control circuit 15 is powered by this power supply voltage and turns on and off at the normal hazard lamp cycle. Generates an off-pulse switching electrical signal. This opening/closing electrical signal is transmitted to both liquid crystal panels 1
3 and 13a to periodically induce translucency and haze.

The method of use and operation of the reflective display device 10 configured as described above is as follows.

Usually, as shown in FIG. 3, for example, the package is attracted and placed on the package tray 2 with one of its surfaces facing backwards using a magnet. Solar panel 12 and reflector 1 facing backward at night
4 is illuminated by the headlamp of a following vehicle, the light shutter control circuit 15 starts operating with the power supply voltage generated by the solar panel 12. Then, the liquid crystal plates 13, 13a are periodically opened and closed, and the headlamp light is reflected from the reflector 14 as a blinking light. In other words, the hazard function can be activated when a following vehicle approaches. Note that this reflective display device 10 may be stored in a location other than the package tray 2.

During an emergency stop, the base 11 is installed on the roof 3, for example, as shown in FIG. As a result, a warning is given to a following vehicle approaching from the front or rear by flashing reflection from the corresponding reflecting plates 14, 14a.

In the above-mentioned embodiment, the optical shutter control circuit 15
Two may be provided exclusively for both solar cell panels 12, 12a and liquid crystal plates 13, 13a. The reflector and the solar panel can be single-sided or polygonal, or they can also be cylindrical. As the light shutter, instead of liquid crystal, it is also possible to use a ceramic type light shutter which similarly becomes transparent and hazy when a voltage is applied.

[Effect of idea]

As described above, according to the present invention, when a vehicle stops due to an accident or the like at night, the visibility effect is improved by using the hazard lamp in common. It can also be used as a substitute when hazard lights cannot be used. Since it uses solar cells, it blinks without requiring power supply maintenance. It can also be used as a mascot, and various configurations can be considered with consideration to design.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of a reflective display device for a vehicle according to an embodiment of the present invention, Fig. 2 is a diagram showing the configuration of a circuit portion of the same embodiment, and Fig. 3 is a usage state of the reflective display device of the same embodiment. FIG. 11... Base, 12, 12a... Solar panel, 13, 13a... Light shutter, 14, 14a
...Reflector, 15... Optical shutter control circuit.

Claims (1)

[Claim for Utility Model Registration] A solar panel and a reflector whose surface is covered with a light shutter whose opening and closing are controlled by an electrical signal are arranged vertically on a base installed on a horizontal surface, and A reflective display device for a vehicle, comprising an optical shutter control circuit that is supplied with power by the solar cell to generate the periodic electrical switching signal and supplies the electrical signal to the optical shutter.