JPH07312109A - Flashing device for decoration - Google Patents

Abstract

PURPOSE:To improve decoration effect by flashing plural light emitting diodes at a specified periodic cycle while changing brightness of them gradually by an adjusting circuit. CONSTITUTION:Oscillation waveforms of rectangular waves are obtained at a connection point A of NOT circuits 7, 8 inside an oscillation circuit 3. Because a Zener diode having specified current characteristics is used inside a brightness adjusting circuit 4 at a point B of a plus terminal of a capacitor C1, waveforms of triangular waves plus the Zener diode characteristics are obtained. Brightness of light emitting diodes 2 connected to this circuit 4 are thus changed to become bright gradually, and then become dark gradually, while they flash at a periodic cycle determined by the circuit 3. By changing a constant R1 of a resistor inside the circuit 3, the periodic cycle of oscillation can be changed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative blinking device which is provided with a plurality of light emitting diodes mounted on a curtain, a doll, a plant or the like to blink while gradually changing the brightness.

[0002]

2. Description of the Related Art Conventionally, there has been a device in which a plurality of small light bulbs connected by wiring are attached to a tree or a Christmas tree and blinked to be used for decoration.

[0003]

However, in such a blinking device, a small light bulb having a constant brightness is simply blinked, and it cannot be said that the effect is sufficiently produced.

An object of the present invention is to provide a decorative blinking device which has been proposed in order to solve the problems of the prior art and has a sufficient effect.

[0005]

To achieve this object, a decorative blinking device according to the present invention comprises a plurality of light emitting diodes, an oscillator circuit for controlling the blinking period of the light emitting diodes, and a plurality of the light emitting diodes. And a brightness adjusting circuit for gradually changing the brightness.

Further, in the present invention, the effect is produced by scattering the plurality of light emitting diodes in the curtain.

Further, in the present invention, the effect is produced by scattering the plurality of light emitting diodes in a chandelier.

Further, in the present invention, the effect is produced by interspersing the plurality of light emitting diodes with the costume of the doll.

Further, in the present invention, the effect is produced by scattering the plurality of light emitting diodes in the screen door.

Further, in the present invention, the effect is produced by interspersing the plurality of light emitting diodes with a plant tree.

Further, in the present invention, the effect is produced by scattering the plurality of light emitting diodes with goodwill.

Further, in the present invention, the effect is produced by scattering the plurality of light emitting diodes in an aquarium for ornamental fish.

Further, in the present invention, the effect is produced by interspersing the plurality of light emitting diodes in a wind chime.

[0014]

According to the above-mentioned structure, a plurality of light-emitting diodes studded with curtains or plants can be made to blink at a cycle determined by the oscillation circuit while gradually changing the brightness by the brightness adjustment circuit, Compared with the case of simply blinking a plurality of light emitting diodes, a staging effect can be produced.

[0015]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a decorative blinking device according to the present invention. In this figure, one light emitting block 1 comprises light emitting diodes 2, 2, ..., Oscillation circuit 3 and brightness adjusting circuit 4 connected in series. From the power supply circuit 5, a DC power supply Vcc for lighting the light emitting diodes and a DC power supply VD for circuit operation are supplied to the plurality of light emitting blocks 1.
Here, the oscillation circuit 3 controls the blinking cycle of the light emitting diode 2, and the brightness adjustment circuit 4 controls so that the brightness of the light emitting diode 2 gradually changes.

Next, specific circuits of the oscillation circuit 3 and the brightness adjusting circuit 4 which constitute one light emitting block 1 will be described with reference to FIG. In this figure, the oscillator circuit 3 comprises three knot circuits 6, 7, 8 and three resistors R1, R2, R3. A resistor R is connected in parallel to the knot circuits 6 and 7 connected in series.
2 is connected, and a series circuit of a knot circuit 8 and a resistor R1 is connected in series to these parallel circuits. A resistor R3 is connected in parallel to this series circuit.

The brightness adjusting circuit 4 comprises transistors 9 and 10 in Darlington connection, a capacitor C1, two resistors R4 and R5, and a Zener diode 11. The anode side of the light emitting diodes 2 connected in series is the power supply circuit 5
This light-emitting diode 2 is connected to the DC power source Vcc from
The cathode side of is connected to the collectors of Darlington-connected transistors 9 and 10. The base of the transistor 9 is connected to the output terminal of the oscillation circuit 3 and one end of the capacitor C1. The other end of this capacitor C1 is grounded. Also, the transistor 10
A series circuit of a resistor R4 and a Zener diode 11 is connected between the emitter of the resistor and the ground. The DC power supply VD from the power supply circuit 5 is connected to the connection point between the resistor R4 and the Zener diode 11 via the resistor R5. Here, as the Zener diode 11, a Zener diode 11 having a current characteristic as shown by a1 in FIG. 3 in which the current does not rise rapidly even when the reverse voltage is increased to the Zener voltage VZ is used. a2 shows the current characteristic of a normal Zener diode.

With such a circuit configuration, a rectangular oscillation waveform as shown in FIG. 4A is obtained at the point A of the knot circuits 7 and 8 in the oscillation circuit 3. In addition, at the point B of the positive terminal of the capacitor C1, since the zener diode 11 having the current characteristic as shown by a1 in FIG. 3 is used in the brightness adjusting circuit 4, the characteristic of this zener diode 11 is triangular wave. The waveform is added to obtain a waveform as shown in FIG. As a result, the light emitting diodes 2, 2, ... Connected to the brightness adjusting circuit 4 change in brightness such that they gradually become brighter and then gradually darker, and blink at a cycle determined by the oscillation circuit 3. .

Here, the oscillation period can be changed by changing the constant R1 of the resistance in the oscillation circuit 3. Further, as shown in FIGS. 5A and 5B, the duty ratio of oscillation can be changed by connecting the series circuit of the diode 12 and the resistor R6 in parallel to the resistor R1. Further, by removing the resistor R5 in the brightness adjusting circuit 4, the time when the light emitting diode 2 is off can be eliminated.

Next, another embodiment shown in FIG. 6 will be described. In this embodiment, the brightness of the plurality of light emitting diodes 2, 2, ... Connected to the driver 15 by the microcomputer 13 is gradually changed based on a program stored in a ROM (read only memory) 14. , Blinking is controlled. FIG. 7 shows an output waveform for driving the light emitting diode 2. Here, the microcomputer 13 constitutes an oscillation circuit and a brightness adjustment circuit.

Next, an application example of the decorative blinking device according to the present invention will be described. First, in the example shown in FIG. 8, this decorative blinking device is applied to the curtain 16. In this example, the connection cables 17 are woven according to the warp yarns and the weft yarns, and the plurality of light emitting diodes 2 are at random scattered throughout the curtain. The controller 18 includes a power supply circuit, an oscillation circuit, and a brightness adjustment circuit, and controls the plurality of light emitting blocks 1. The connector 19 of the cable extending from the controller 18 is connected to the connector 20 attached to the lower side of the curtain 16. In this way, by arranging the light emitting diode 2 on the curtain 16 and causing it to blink while gradually changing the brightness, an indoor landscape can be produced. Moreover, the curtain 16 can be reinforced by weaving the connection cable 17 into the curtain 16.

Next, an application example shown in FIG. 9 will be described. In this example, a plurality of light emitting diodes 2 are embedded in the glass beads 22 of the chandelier 21.

Next, in the application example shown in FIG. 10, the doll 2
A plurality of light emitting diodes 2 are attached to clothes such as clothes 3 and hats.

Next, in the application example shown in FIG. 11, a plurality of light emitting diodes 2 are interspersed with a screen door 24 made of aluminum sash, and a coolness can be produced on a summer night.

Next, an application example shown in FIG. 12 will be described.
In this example, a plurality of green light emitting diodes 2
It is a studded object that can create a landscape of fireflies perched on a tree.

Next, in the application example shown in FIG. 13, a plurality of light emitting diodes 2 are scattered on the goodwill 26 so that a landscape of the room can be produced.

Next, an application example shown in FIG. 27 will be described.
In this example, rocks 28 and pebbles 2 in the aquarium 27 for ornamental fish
9, a plurality of light emitting diodes 2 are attached to the grass 30 and the like, and the aquarium 27 placed indoors can be produced with rich decoration.

Next, in the application example shown in FIG.
A plurality of light emitting diodes 2 are attached to 1 so that coolness can be produced on a summer night.

[0029]

As described above, according to the present invention, a plurality of light emitting diodes are scattered on a curtain, a plant, or the like,
Since these light emitting diodes are made to blink while gradually changing the brightness, there is an effect that the effect of producing a landscape in the room can be sufficiently produced as compared with the conventional case.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a decorative blinking device according to the present invention.

FIG. 2 is a circuit diagram showing a specific circuit configuration of the decorative blinking device of FIG.

FIG. 3 is a characteristic diagram showing current characteristics of a Zener diode used in the decorative blinking device.

FIG. 4A is a waveform diagram showing an output waveform of an oscillation circuit which constitutes the decorative blinking device, and FIG. 4B is a waveform diagram showing an operation of a brightness adjusting circuit.

FIG. 5 is a circuit diagram showing a modified example of a part of the oscillation circuit.

FIG. 6 is a block diagram showing a decorative blinking device of another embodiment.

7 is a waveform diagram showing operation waveforms of the microcomputer in FIG.

FIG. 8 is a diagram showing an example in which the decorative blinking device is applied to a curtain.

FIG. 9 is a diagram showing an example in which the decorative blinking device is applied to a chandelier.

FIG. 10 is a diagram showing an example in which the decorative blinking device is applied to a doll.

FIG. 11 is a diagram showing an example in which the decorative blinking device is applied to a screen door.

FIG. 12 is a diagram showing an example in which the decorative blinking device is applied to a planting tree.

FIG. 13 is a diagram showing an example in which the decorative blinking device is applied to goodwill.

FIG. 14 is a diagram showing an example in which the decorative blinking device is applied to an aquarium for ornamental fish.

FIG. 15 is a diagram showing an example in which the decorative blinking device is applied to a wind chime.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 light emitting block 2 light emitting diode 3 oscillation circuit 4 brightness adjusting circuit 5 power supply circuit 13 microcomputer 14 ROM 15 driver 16 curtain 21 chandelier 22 glass beads 23 doll 24 mesh door 25 garden tree 26 goodwill 27 water tank for ornamental fish 31 wind bell

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display location G08B 5/36 B H01L 33/00 JN // F21P 1/02 Z

Claims (9)

[Claims] 1. A decoration comprising a plurality of light emitting diodes, an oscillation circuit for controlling a blinking period of the light emitting diodes, and a brightness adjusting circuit for gradually changing the brightness of the plurality of light emitting diodes. Flashing device. 2. The blinking device for decoration according to claim 1, wherein the plurality of light emitting diodes are studded in a curtain. 3. The decorative blinking device according to claim 1, wherein the plurality of light emitting diodes are studded in a chandelier. 4. The decorative blinking device according to claim 1, wherein the plurality of light emitting diodes are studded in a doll's costume. 5. The decorative blinking device according to claim 1, wherein the plurality of light emitting diodes are studded in a screen door. 6. The decorative blinking device according to claim 1, wherein the plurality of light emitting diodes are studded with a plant tree. 7. The decorative blinking device according to claim 1, wherein the plurality of light emitting diodes are studded with goodwill. 8. The decorative blinking device according to claim 1, wherein the plurality of light emitting diodes are scattered in an aquarium for ornamental fish. 9. The decorative blinking device according to claim 1, wherein the plurality of light emitting diodes are studded in a wind chime.