JPH0227465Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Field> The present invention relates to lighting equipment such as desk lamps and fluorescent lamps.

<Prior Art> In conventional lighting equipment, if the lighting equipment is turned off at bedtime, the lighting equipment does not function at all until the next time the lighting equipment is turned on. Therefore, lighting equipment was only useful when the lights were on.

<Purpose> The present invention aims to provide a lighting fixture that can be used for other purposes and can also be used to confirm whether the light is off by attaching a sound generating device to the fixture body.

<Example> Hereinafter, an example of the present invention will be described based on the drawings. First, the first embodiment of the present invention shown in FIGS. 1 and 2 will be explained. This includes a device main body 1, a switch 3 for turning on and off a light 2, a sound generating device 4 for generating sound, and the above-mentioned device. The apparatus includes a control device 5 that turns on the sound generating device 4 when the switch 3 is turned off.

As shown in FIG. 1, the control device 5 includes a light amount detection circuit 6 that turns on when the amount of light falls below a set value.
, a switch detection circuit 7 that detects the OFF operation of the switch 3, and an AND gate 8 that outputs an H signal in response to the ON signals of the light amount detection circuit 6 and the switch detection circuit 7. The light amount detection circuit 6
consists of a comparator 9, a resistor R1 and a phototransistor Tr1 connected to the positive input terminal side of the comparator 9, and resistors R2, R3 and a semi-fixed resistor VR1 connected to the negative input terminal side of the comparator 9, Phototransistor Tr
1 is installed on the surface of the appliance body 1 to detect the illuminance in the room and increase the resistance as the room gets darker. In addition, the switch detection circuit 7
is ON- in conjunction with resistor R4 and power switch 3.
A single shot IC4 that inputs the partial pressure value with the switch SW to turn off, and the single shot IC4.
It consists of a capacitor C1 and a resistor R5, which are connected to output an H signal for a certain period of time.

The voice generating device 4 is composed of a voice synthesis circuit IC1 that generates a predetermined pulse signal based on the output signal of the AND gate 8, and a speaker SP that outputs the pulse signal of the voice synthesis circuit IC1 via an amplifier AMP. be done. In this embodiment, the sound generated by the sound generating device 4 is a synthesized sound such as "Good night", for example.

In the above configuration, when the room becomes dark, the resistance of the phototransistor Tr1 increases, and when the potential of the positive input terminal of the comparator 9 exceeds the potential preset by the resistors R2, R3 and the semi-fixed resistor VR, the comparator 9 The output becomes H level.

On the other hand, when the switch SW linked to the switch 3 of the electric light 2 such as a fluorescent light is turned off, a single shot is activated.
The input terminal of IC4 becomes H level, and the output remains H for a certain period of time determined by capacitor C1 and resistor R5.
becomes.

Then, when both outputs become H at the same time (that is, when the fluorescent light is turned off and it becomes dark), the output of AND gate 8 becomes H, and the voice synthesis circuit IC
The start terminal of No. 1 becomes H, and an audio signal is output from the output terminal, passes through the amplifier AMP, and becomes a voice "Good night" from the speaker SP (a melody may also be used).

Note that the output of the single shot IC 4 is adjusted so that it becomes L by the time the voice is finished, so the voice will not be repeated more than once.

FIG. 3 shows a second embodiment of the present invention, in which the light intensity increasing circuit 6 includes a resistor R1 and a half resistor VR.
2 and a Schmitt buffer IC 5 into which the partial pressure value of cadmium sulfide CdS is input. In addition, the switch detection circuit 7 connects the resistor R4 and the switch.
Capacitor C2 and resistor R connected between SW
It is composed of a differential circuit 7A based on 6. The other configurations are the same as those of the first embodiment.

In the above configuration, when the room becomes dark, the resistance of cadmium sulfide CdS increases, and the
The input terminal of IC5 becomes H level, and the output also becomes H level. On the other hand, when the switch SW is turned off, the potential at point A in Fig. 3 changes from L to H, and the capacitor C2
A pulse with a constant width appears at point B through a differentiating circuit 7A composed of a resistor R6 and a resistor R6. Thereafter, as in the first embodiment, the AND gate 8 outputs an H signal and a voice is produced in the same manner.

In this way, when the lights are turned off at night, the "good night" sound is generated, so you can sleep comfortably. Furthermore, when the present invention is applied to a lighting device other than a bedside stand, it is possible to confirm whether the light has been turned off by generating a sound.

It should be noted that the present invention is not limited to the above embodiments, and it goes without saying that many modifications and changes can be made to the above embodiments within the scope of the present invention.

<Effects> As is clear from the above explanation, the present invention has a switch detection circuit that detects the OFF operation of a light switch, and a switch detection circuit that detects the OFF operation of a light switch.
With the operating sound generation device, it is possible to generate sounds such as "good night" only when the lights are off.

Moreover, in this case, a light amount detection circuit is provided that turns on when the light amount falls below a set value, and the sound generator is operated only by the output of both this and the ON signal of the switch detection circuit. "Good night" when it's bright, such as during the day
The system does not generate contradictory sounds such as noise, etc., and only generates the sound when it is dark, such as at night, so you can sleep comfortably, and it has excellent effects such as being able to confirm that the lights are turned off by the sound generation. .

[Brief explanation of the drawing]

Fig. 1 is a circuit diagram of a control device for a lighting equipment showing a first embodiment of the present invention, Fig. 2 is an external perspective view of the lighting equipment, and Fig. 3 is a control device for a lighting equipment showing a second embodiment of the invention. FIG. 3 is a circuit diagram of the device. 1: Appliance body, 2: Electric light, 3: Switch, 4:
Sound generator, 5: Control device, 6: Light amount detection circuit, 7: Switch detection circuit, 8: AND gate,
9: Comparator.

Claims (1)

[Scope of utility model registration request] There is a switch on the main body of the fixture that turns the light on and off,
a sound generating device that generates sound and the switch;
a control device that turns on the sound generating device by turning it off; the control device includes a light amount detection circuit that turns on when the amount of light falls below a set value;
A lighting device comprising: a switch detection circuit that detects the OFF operation of the switch; and an AND gate that outputs an H signal in response to ON signals from the light amount detection circuit and the switch detection circuit to operate a sound generator. utensils.