JPH0730191U - Flasher light - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] To provide a flasher light that automatically emits light when it detects light from the headlight of a following vehicle and actively informs the following vehicle of its presence. An optical sensor 2 and a light emitting diode 7 provided in a direction of incident light of detection light of the optical sensor are provided, and the light emitting diode is blinked when light having a predetermined value or more is incident on the optical sensor. Further, the light emitting diode is blinked continuously for a predetermined time after the light having a predetermined value or more is incident on the optical sensor.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention is for mounting on the rear surface of a bicycle, cart, etc., or for detecting the light of the headlight when a pedestrian carries it at night and a succeeding vehicle approaches, to proactively notify the existence of a bicycle etc. It is about flasher lights.

[0002]

[Prior art]

 Conventionally, in order to prevent self-collision by a trailing vehicle such as a bicycle or cart on a night road, it is mounted on the rear surface of the bicycle or the like and diffuses light from the headlights of the trailing vehicle to notify the following vehicle of its presence. Such a reflector is known. However, such a reflector only reflects the light from the headlights and the amount of light is inconspicuous because it may be overlooked by the driver of the following vehicle, and the effect of preventing accidents is not certain. was there.

[0003]

[Problems to be solved by the device]

 The purpose of this invention is to improve the above-mentioned drawbacks of the prior art by providing a flasher light that automatically emits light when it detects light from a headlight of a following vehicle and actively informs the following vehicle of its presence. Is to provide.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the flasher light of the present invention comprises an optical sensor and a light emitting diode provided in the direction of incident light of the detection light of the optical sensor, and light of a predetermined value or more is incident on the optical sensor. At this time, the light emitting diode is made to blink. Further, the light emitting diode is made to blink for a predetermined time continuously after the light having a predetermined value or more is incident on the optical sensor.

[0005]

[Action]

 If the flasher light is attached to the rear surface of a bicycle or the like, the light emitting diode will blink when the light from the headlight is incident on the optical sensor for more than a specified value when a vehicle behind comes close to it, and the light emitting diode will move toward the headlight. By sending a blinking signal, the following vehicles are proactively informed of the existence of bicycles. Furthermore, after the light from the headlight is detected, the light emitting diode continues to blink for a predetermined time to ensure the display.

[0006]

【Example】

 A flasher light according to an embodiment of the present invention will be described with reference to the drawings. 1 is a block diagram thereof, and FIG. 2 is a front view thereof. An optical sensor 2 and a large number (for example, eight) of light emitting diodes 7 are provided on the front surface of the flasher light 1, and the surface thereof is covered with a plastic cover 8 having a cut for light scattering. Inside the flasher light 1, there are provided a comparator 3 connected to the optical sensor 2, a counter 4 that is activated by the output of the comparator 3 and operates for a predetermined time, an oscillator 5 that drives the counter 4, and a light emitting diode lighting drive circuit 6. ing.

An optical signal input to the optical sensor 2 is converted into a voltage, input to a comparator 3 and compared with a reference voltage, and when the voltage exceeds a reference voltage, a counter 4 is activated. The reference voltage is set appropriately by adjusting the variable resistance R in consideration of the distance to detect the following vehicle, the brightness of the headlight, and the like. The counter 4 counts the clock pulse from the oscillator 5 and creates a blinking signal for sequentially blinking the eight light emitting diodes, and this signal is input to the light emitting diode lighting drive circuit 6 to generate eight light emitting diodes. 7 is sequentially blinked. The operation of the counter 4 continues for 4 seconds (for example) and then stops.

Next, the operation will be described. When the following vehicle approaches and the light from the headlight is incident on the optical sensor 2, its output is input to the comparator 3 and compared with the reference voltage. When it is determined that the voltage is higher than that, the counter 4 is activated. The counter 4 outputs a blinking signal for 4 seconds, and the light emitting diode lighting drive circuit 6 sequentially blinks the eight light emitting diodes 7 in response to this signal and sends a blinking signal in the direction of the headlights to the succeeding vehicle such as a bicycle. The presence of. If the light from the headlight continues when the counter 4 is stopped, the same operation is repeated.

[0009]

[Effect of device]

 As described above, the flasher light of this invention blinks the light emitting diode to notify the following vehicle of the presence of light from the headlight of the following vehicle. It is possible to recognize and reliably prevent accidents, and it is possible to minimize the consumption of the battery by using the light emitting diode and operating only when the light of the headlight of the following vehicle is detected. Even if the incident light is instantaneous, it can be surely notified by blinking the light emitting diode continuously for a predetermined time.Because it is small and lightweight, it can be carried by pedestrians at night. In addition, it has a number of effects that it can also be used for confirming the position in the event of an accident.

[Brief description of drawings]

FIG. 1 is a block diagram of a flasher light according to an embodiment of the present invention.

[Figure 2] Front view

[Explanation of symbols]

1 Flasher light 2 Optical sensor 3
Comparator 4 Counter 5 Oscillator 6 Light emitting diode lighting drive circuit 7 Light emitting diode 8 Plastic cover

Claims (2)

[Scope of utility model registration request] 1. A light sensor and a light emitting diode provided in a direction of incident light of detection light of the light sensor, wherein the light emitting diode blinks when light of a predetermined value or more is incident on the light sensor. Flasher light to be. 2. The flasher light according to claim 1, wherein the light emitting diode is blinked continuously for a predetermined time after light having a predetermined value or more is incident on the optical sensor.