JPH0249678Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Technical Field This invention relates to a volume-responsive lighting device that selectively blinks a plurality of lamps in response to input from a microphone.

(b) Prior art and its disadvantages There is a lighting device that is used in audio equipment and the like and responds to the volume. These are designed so that the lighting changes depending on the volume of the sound collected by the microphone. Conventional volume-responsive lighting devices include multiple lamps, where only a single lamp among the lamps lights up for the lowest volume, and all lamps light up for the highest volume. In addition, for volume values having intermediate values, the volume is divided into a single level or a plurality of levels, and the number of lamps to be lit is increased or decreased according to the level. However, with the conventional volume-responsive lighting devices described above, changes in volume can only be expressed by increases and decreases in light intensity. The disadvantage is that it cannot be changed.

(c) Purpose of the invention In view of the above-mentioned drawbacks of the conventional technology, the purpose of this invention is to provide a system that allows you to select either the amount of illumination light or the illumination image depending on the change in volume, and the response of illumination light to volume. It is an object of the present invention to provide a volume-responsive lighting device capable of creating different atmospheres and expanding the range of use by changing the volume.

(d) Structure and effect of the invention This invention includes a plurality of volume response means that respond to input from a microphone at least at three levels of volume: low, medium, high and medium, and high and high, and each volume. a switch means for selecting one of the plurality of lamps connected to the reaction means and the plurality of volume reaction means according to a predetermined rule when the plurality of volume reaction means react simultaneously, and enabling the selected volume reaction means; The present invention is characterized by comprising a switching means for selecting whether to enable the switch means or to disable the switch means and to enable all the responsive sound volume response means.

By configuring as described above, according to this invention, the amount of illumination light can be changed by increasing or decreasing the number of lit lamps according to changes in volume, or
Alternatively, you can choose to change the lighting image by lighting only the lamps that correspond to each level of volume, and you can create different atmospheres by selecting the reaction of the lighting light to the volume. , and its range of use can be expanded.

(e) Embodiment The figure is a circuit diagram of a volume lighting device that is an embodiment of this invention.

The electrical signal from the microphone 1 is amplified by an amplifier 2 and input to attenuators 3-5. Each of these attenuators attenuates by the same dB and outputs in response to the input to the microphone in three levels: low, medium, high and medium, and high and high. Microphone 1
The output of the attenuator to which the electric signal is input is input to the lamps 7 to 9 via the lamp drive IC. 1st
A transistor Q is connected between the attenuator 3 and the second attenuator 4.
1 is connected, and the second attenuator 4 and the third attenuator 5
A transistor Q2 is connected between them. The collector of transistor Q4 is commonly connected to the emitters of transistors Q1 and Q2. Further, the base of the transistor Q4 is connected to the collector of the transistor Q3, and the switch SW1 is connected to the base of the transistor Q3.

With the above-described configuration, an electric signal outputted from the microphone 1 according to the collected sound volume is amplified in width by the amplifier 2 and inputted to the first attenuator 3. When the electrical signal input to the first attenuator 3 is less than the amount of attenuation by the attenuators 3 and 4, that is, when the microphone 1 collects a small sound volume, no output appears at the second attenuator 4. Only the output of the first attenuator 3 appears. When the electrical signal input to the first attenuator 3 is larger than the total attenuation of the attenuators 3 and 4 and smaller than the total attenuation of the first to third attenuators, that is, the microphone 1
When a medium-volume sound is collected, no output appears at the third attenuator 5, and only outputs from the first attenuator 3 and the second attenuator 4 appear. At this time, the output from the second attenuator 4 turns on the transistor Q1, and the output of the first attenuator 3 is short-circuited. Therefore, the second
Only the output of the attenuator 4 is input to the lamp drive IC 6, and only the lamp 8 is lit.

Furthermore, if the electrical signal input to the first attenuator 3 is larger than the total attenuation amount by the first attenuator 3 to the third attenuator 5, that is, when the microphone 1 collects a large sound volume, the attenuator Output appears in all 3 to 5. However, as mentioned above, the output of the second attenuator 4 turns on the transistor Q1 and the first
The output of the attenuator is short-circuited, and similarly, the output of the third attenuator 5 turns on the transistor Q2, and the output of the second attenuator 4 is also short-circuited. Therefore, the output of only the third attenuator 5 is input to the lamp drive IC 6, and only the lamp 9 is lit.

When the switch SW1 is turned on, the power supply voltage V2 is input to the transistor Q3, turning it on and turning off the transistor Q4. At this time, transistors Q1 and Q2 connected to transistor Q4 are also turned off, so the second
The output of the first attenuator 3 is no longer short-circuited by the output of the attenuator 4, and the output of the second attenuator 4 is no longer short-circuited by the output of the third attenuator 5. Therefore, if the microphone 1 collects a medium volume sound when the switch SW1 is turned on, the first attenuator 3 and the second attenuator
The output of the attenuator 4 is input to the lamp drive IC 6,
Lamps 7 and 8 are lit. Also, when the microphone 1 collects a large sound, all outputs of the first attenuator 3, second attenuator 4, and third attenuator 5 are input to the lamp drive IC 6, and all of the lamps 7 to 9 are Light.

As a result of the above-mentioned action, when switch SW1 is off, only the lamps corresponding to the level of the sound volume collected by microphone 1 are lit, and when switch SW1 is on, the volume level of the sound collected by microphone 1 is lit. The number of lamps lit increases or decreases according to the change. Therefore, by turning the switch SW1 on and off, it is possible to select either to change the amount of illumination light or to change the illumination image depending on the volume.

In the above configuration, the attenuators 3 to 5 correspond to the volume response means of this invention, and the transistors Q1 and Q2 connected between the attenuators 3 to 5 and the lamp drive IC correspond to the switch means, and the switch SW
1 and transistors Q3 and Q connected to it
4 corresponds to the switching means.

Note that it is also possible to reduce the amount of attenuation of each attenuator to increase the number of divisions between the maximum volume and the minimum volume, and to arrange a corresponding number of lamps. Further, a plurality of lamps can be provided for each level of volume.

[Brief explanation of the drawing]

The figure is a circuit diagram of a volume-responsive lighting device that is an embodiment of this invention. 1... Microphone, 3-4... Attenuator, 7
~9...Lamp.

Claims (1)

[Scope of utility model registration request] at least small for the input of the microphone,
When a plurality of volume response means each respond to three levels of volume: medium, high and medium, and high and high, a plurality of lamps connected to each volume response means, and a plurality of volume response means react simultaneously. A switch means for selecting one of them according to a predetermined rule and enabling the selected volume response means, and a switch means for enabling this switch means or disabling the switch means and for all reacted A volume responsive lighting device comprising: switching means for selecting whether to enable the volume responsive means;