JP2000051167A - Photo-stimulator for electroencephalograph and photo- stimulation of electroencephalograph - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a photo-stimulator in a simple structure and enable a blinking pattern in full color to be outputted by equipping a luminescence control unit to execute switching on or off control of a switch unit and lighting on/off control of each LED systems by an LED luminescence unit. SOLUTION: When a desired key is selected from red, blue, and green keys on an operation panels 50a and a lighting on key is depressed, CPU 10 outputs a connection request of a switch equipped on a red LED system to a switch unit 60. The switch is turned on to light on a luminescence unit 70. When a lighting off key on the operation panel 50a is depressed, the red LED is lit off. The selection of red, blue, and green keys is not limited to one key but also it is allowed to select plural keys so as to depress lighting on keys. Consequently, when all of red, blue, and green keys are selected and lighting on keys are depressed, white light is to be outputted from the luminescence unit 70.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an optical stimulator for an electroencephalograph and an optical stimulus method for the electroencephalograph.

[0002]

2. Description of the Related Art Conventionally, as this kind of photostimulation device, FIG.
The following are known. In FIG.
Reference numeral 4 denotes a mechanism for generating a flash stimulus, which performs a process of giving light to an actual subject, and performs a process for providing a trigger coil 105 and a xenon tube 10.
6 is comprised. The xenon tube 106 is a kind of discharge tube and emits flash light. Trigger coil 10
Reference numeral 5 denotes a coil for converting a control signal into a high frequency and a high voltage, and performs an operation of guiding a flash to the xenon tube 106.
The trigger controller 103 turns ON / OFF the trigger coil 105.
A control process for inputting an OFF signal is executed. The stimulation pulse generation circuit 102 generates a pulse based on the control signal output from the stimulation pulse control circuit 101.

A stimulus pulse control circuit 101 generates a control signal for a stimulus pulse generation circuit 102. The power supply unit 107 includes a control power supply unit 108 and a discharge voltage power supply unit 10.
9 to supply power to each circuit and the like. Specifically, the control power supply unit 108 is connected to the stimulation pulse control circuit 10.
1. A control power supply is supplied to the stimulus pulse generation circuit 102 and the trigger circuit 103. The discharging power supply unit 109 supplies a discharging voltage power supply to the charging unit 110. The charging unit 110 performs an operation of storing energy sufficient for the xenon tube 106 to perform discharging.

In the above configuration, xenon gas is usually kept in an insulated state inside the xenon tube 106. The charging unit 110 is supplied with power of several hundred volts from the discharging voltage power supply unit 109, and stores sufficient energy for the xenon tube 106 to discharge. At this time, the inside of the xenon tube 106 is still insulated. And
A control signal is output from the stimulation pulse control circuit 101 and a light emission pulse is output from the stimulation pulse generation circuit 102 to perform light stimulation. Based on this light emission pulse, the trigger control unit 103 turns on / off a voltage of several hundred volts to the trigger coil 105, and the trigger coil 105 converts the high frequency energy suitable for the xenon tube 106 to a high voltage energy of several kvolts. Let it be converted. The xenon gas inside the xenon tube 106 is broken down by this high frequency and high voltage, and a sudden discharge occurs in the xenon tube 106. As a result, the energy stored in the charging unit 110 becomes light energy and instantaneously emits strong light.

In the electroencephalograph photostimulator disclosed in Japanese Patent Application Laid-Open No. 5-15600, sound waveforms for generating light and sound are recorded on four tracks of a cassette tape with strong and weak recordings. A program of at least five types of generated patterns is recorded, and a four-track audio waveform is simultaneously reproduced by a four-track cassette deck.
The sound is reproduced and output from the headphones while controlling the blinking of.

[0006]

The above-mentioned conventional optical stimulator for an electroencephalograph has the following problems. In the former case, the use of a xenon tube causes a problem in that the device configuration becomes large-scale, and the device is easily damaged by mechanical vibration. In addition, in the latter, not only is it limited to the blinking control of the LED dependent on the audio waveform, but also because the red and green LEDs are used,
There is a problem that full-color light cannot be output.

The present invention has been made in view of the above problems, and has as its object to provide a light stimulator for an electroencephalograph that has a simple configuration and can output a full-color blinking pattern.

[0008]

According to a first aspect of the present invention, there is provided a light emitting device comprising: a plurality of light emitting elements having LEDs of three primary colors of red, green, and blue light; And an LED light emitting unit that connects adjacent LEDs of the same color in the same direction to form an LED system of the same color, and executes a predetermined current flowing through the LED system of the same color connected by the light emitting unit. A switch unit having a switch to perform
A light emitting control unit is provided for executing on / off control of the switch of the switch unit and for controlling turning on / off of an LED in each LED system by the LED light emitting unit.

[0009] In the invention according to claim 1 configured as described above, the light emitting element has LEDs of three primary colors of red, green, and blue light. In the light emitting unit, the light emitting elements are arranged in a matrix, and adjacent LEDs of the same color in the same direction are connected to each other to form an LED system of the same color. The switch unit is connected to the same color LE connected by the light emitting unit.
A switch for turning on and off a predetermined current flowing through the D system; and the light emission control unit executes switch on / off control of the switch unit, and the LED in each LED system is controlled by the LED light emitting unit.
The control of turning on or off of is executed. That is, red,
By controlling the light emission and extinction of the three primary colors of green and blue LEDs from the light emission control unit via the switch unit, a full-color light output can be executed.

[0010] The invention according to claim 2 is based on claim 1.
In the optical stimulator for an electroencephalograph described in 1 above, the LED light emitting unit includes a resistance unit having a predetermined resistance value at a start end of the LED system to which a current is applied, and each of the LEs.
The configuration is such that the value of the current flowing through the D system is suppressed. In the invention according to claim 2 configured as described above, the LED light-emitting unit includes a resistance unit having a predetermined resistance value at a starting end to which the current of each LED system is applied, and detects a current value flowing through each LED system. Suppress.

Further, according to a third aspect of the present invention, in the optical stimulating device for an electroencephalograph according to any one of the first and second aspects, the light emission control unit is connected to each light emitting element. The switch unit is configured to include a light emitting element switch for turning on and off the current applied to each light emitting element. In the invention according to claim 3 configured as described above, the light emission control unit is connected not only to the LED system but also to each light emitting element. Thus, the light emitting element can be turned on independently. Further, by providing a light emitting element switch for turning on and off the current applied to the light emitting element in the switch unit, it is possible to easily control the turning on and off of the light.

According to a fourth aspect of the present invention, in the optical stimulator for an electroencephalograph according to any one of the first to third aspects, the light emission control unit switches each switch of the switch unit at a predetermined cycle. To turn on and off, and to control the blinking of the LED of the light emitting element. In the invention according to claim 4 configured as described above, the light emission control unit turns on / off each switch of the switch unit at a predetermined cycle, and performs blink control of the LED of the light emitting element.

According to a fifth aspect of the present invention, in the optical stimulator for an electroencephalograph according to any one of the first to fourth aspects, the light emitting element is a switch of a predetermined LED system of the switch unit. When the incoming current is applied, only the LEDs on the LED system, to which the current is applied by the light emitting element switch, are turned on or off. In the invention according to claim 5 configured as described above, when a predetermined LED system switch of the switch unit is turned on and a current is applied, the light emitting element is an LED array on the LED system and the light emitting element is Only the LED to which the current is applied by the element switch is turned on or blinks.

As described above, a plurality of light emitting elements having LEDs of three primary colors of red, green, and blue light, the light emitting elements are arranged in a matrix, and LEDs of the same color adjacent in the same direction are connected. An LED light emitting unit, a switch unit including a switch for turning on and off a predetermined current to the red, green, and blue LEDs connected by the light emitting unit; and performing switch on / off control of the switch unit. LED
It is easy to understand that the light stimulation method of the electroencephalograph provided with the light emission control unit that controls the lighting or extinguishing of the same color in each row by the light emitting unit does not need to be limited to the actual device and can also function as the method. it can.

Therefore, the invention according to claim 6 is directed to a red,
A plurality of light emitting elements having LEDs of three primary colors of green and blue light, an LED light emitting unit for arranging the light emitting elements in a matrix and connecting LEDs of the same color adjacent in the same direction, and A switch unit having a switch for turning on and off a predetermined current to the connected red, green, and blue LEDs; and performing a switch on / off control of the switch unit. In a light stimulation method for an electroencephalograph provided with a light emission control unit for performing control of turning on or off, a step of generating a predetermined control signal for turning on, off, and blinking in the light emission control unit, and inputting the control signal Performing a switch on / off operation of the switch unit; and a switch of the switch unit. Each LED of the light emitting element in which the light-emitting unit comprises lights accordance switching on and off, off, it is constituted comprising the step of flashing. That is, there is no difference that the method is not necessarily limited to a substantial device and is effective as a method.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a photostimulator for an electroencephalograph according to an embodiment of the present invention. In the figure, the electroencephalograph photostimulator 10 includes a light emitting element C1, a light emitting unit C2, and a switch unit C3.
And a light emission control unit C4. The light emitting element C1 includes a red LED C1a and a green LED C1b.
And blue LEdC1c, and can emit light when a current is applied. In the light emitting unit C2, the light emitting elements C1 are arranged in a matrix, and the respective color LEDs of the adjacent light emitting elements C1 are connected, that is, connected in each column element of the matrix for each color.
Form a lineage.

In this embodiment, the LED system C2a
Indicates a red LED system, and the LED system C2b indicates a green L
The LED system C2c is blue L
The ED system is shown. Further, in order to turn on / off the current applied to each system, the light emitting unit C
2, a switch unit C3 having a switch corresponding to each of the LED systems C2a to C2c. The terminals of this switch unit C3 are red, green, and blue.
It has two terminals and is connected to the light emission control unit C4 for each color. The light emission control unit C4 can execute control for turning on / off the switch of the switch unit C3 for each color, and can execute only a single color. It is also possible to execute the control of turning on / off the switch of the switch unit C3 in order to simultaneously light a plurality of colors.

In this embodiment, the light emitting element C
1 are arranged in a matrix, and the red,
Although a configuration in which the LED systems C2a to C2c are formed by connecting green and blue respectively is adopted, it is needless to say that the present invention is not limited to this configuration. For example, the light-emitting control unit C4 may be connected to each light-emitting element C1 to directly control the light-emitting element C1. Of course, at this time, the red, green and blue LEDs of the light emitting element C1
May be turned on at the same time, or may be turned on for each LED. Of course, between each light-emitting element C1 and the light-emission control unit C4, the ON /
A configuration via a switch unit that can be turned off may be used.

In this embodiment, the light-emitting unit C2 and the switch unit C3 are directly connected. However, the light-emitting unit C2 and the switch unit C3 are obviously connected according to the allowable current of the LED of the light-emitting element C1. Between them, a resistor having a predetermined resistance value may be provided for each LED system to suppress the current value flowing into the light emitting unit C2.

FIG. 2 is a block diagram showing a specific configuration of the electroencephalograph optical stimulator. In the figure, a CPU 10 is connected to a ROM 20 and an HD
D30, power supply circuit 40, input / output circuit 50, and RO
A program for realizing each function of the electroencephalograph optical stimulator stored in the M20 or the HDD 30 can be read and executed. Also, a switch unit 60 is connected to the input / output circuit 50, and a switch signal is output from the CPU 10 to the input / output circuit 50 so that the switch unit
The ON / OFF control of a plurality of switches provided in 0 can be performed. Therefore, the CPU 10 controls the light emission control unit C
4 is constituted.

The switch unit 60 includes a power supply 80
And a predetermined power is supplied from the switch unit 60, and the supplied power is supplied to the light emitting unit 70 connected to the switch unit 60 according to ON / OFF of a switch of the switch unit 60. This light emitting unit 7
Reference numeral 0 denotes a plurality of light emitting elements each of which is formed by a set of red, green, and blue LEDs, and the LEDs provided in the light emitting elements emit light by the power supplied to the light emitting unit 70 described above. The power supply 80 is supplied to the electroencephalograph optical stimulator via the power supply circuit 40, and the electroencephalograph optical stimulator is operable. In addition, LED of light emitting element
Is controlled according to an operation from an operation panel 50a connected to the input / output circuit 50.

Specifically, on the operation panel 50a,
Select the desired key from among the “Red”, “Blue”, and “Green” keys,
When the "lighting" key is depressed, the CPU 10 outputs a connection request for a switch provided in the red LED system to the switch unit 60, and when the switch is turned on, the red LED of the light emitting unit 70 is turned on. And
When the "light off" key is pressed down from the operation panel 50a, the red LED turns off. The selection of the "red", "blue", and "green" keys is not limited to one key, and a plurality of keys may be selected and the "lighting" key may be depressed. Therefore, select all of the “red”, “blue”, and “green” keys,
When the “lighting” key is depressed, white light is output from the light emitting unit 70.

In this embodiment, "red", "blue", "green"
The key is equipped with one each, but of course,
The configuration is not limited to such a configuration, and a configuration is adopted in which “red”, “blue”, and “green” keys are provided for each of the red, blue, and green LEDs included in each light-emitting element, and each of the keys is selected. It may be something. At this time, it is possible to output mixed color and multicolor light from the light emitting unit 70.

FIG. 3 shows an LED executed by the CPU 10.
The processing content of the lighting process is shown by a flowchart. When the "lighting" key on the operation panel 50a is depressed, a lighting request is input via the input / output circuit 50 (step S100). Then, similarly, the color information selected on the operation panel 50a is obtained (step S10).
5). The switch of the switch unit 60 is turned on according to the color information (step S110). For example, when the “red” key is selected, the switch unit 60 is connected to the light emitting unit 70 and turns on a switch corresponding to the input red LED system. Then, the light emitting unit 70 lights up in red (step S115). This lighting is continued until the "light-out" key on the operation panel 50a is depressed.
When the “light-out” key of 0a is depressed, the input / output circuit 50
(Step S120), and a predetermined switch of the switch unit 60 is turned off (step S125). As a result, in the above-described example, the red LED is turned off.

Next, the contents of the LED blinking process executed by the CPU 10 are shown in the flowchart of FIG. When the "flashing" key on the operation panel 50a is pressed, a flashing request is input via the input / output circuit 50 (step S20).
0). Then, similarly, the color information selected on the operation panel 50a is obtained (step S205), and the blinking cycle set on the operation panel 50a is obtained (step S210). The switch of the switch unit 60 is turned on according to the color information (step S215). For example, when the "red" key is selected, the switch unit 60 is connected to the light emitting unit 70 and turns on a switch corresponding to the input red LED system. Then, the light emitting unit 70
Lights in red. Then, it is determined whether or not the blink cycle acquired in step S210 has elapsed (step S220). If not, the light is continuously turned on. If the blinking period has elapsed, O
The switch set to N is turned off (step S22).
5). Then, it is determined whether or not the blink cycle acquired in step S210 has elapsed (step S230). If not, the light is continuously turned off. If the blinking period has elapsed, it is determined whether the "light-out" key has been pressed down on the operation panel 50a (step S235). "Off"
If the key has not been depressed, the process returns to step S215, and a predetermined switch of the switch unit 60 is turned on. If it is detected in step S235 that the "light-out" key has been pressed, the blinking process ends.

Next, the operation of this embodiment configured as described above will be described. The user of the electroencephalograph photostimulator uses the operation panel 50a to select a color to be emitted by the light emitting unit 70 from among "red", "green", and "blue" keys. When the "lighting" key is depressed, the LED of the selected color is turned on, and light stimulation can be performed (steps S100 to S115). To end the light stimulation, press the "light off" key. Push down (step S120
To S125). When performing light stimulation by blinking,
Similarly, a desired color to be blinked is selected, a desired period is set, and a light blink is executed by depressing a “blink” key (steps S200 to S23).
5).

As described above, by illuminating or blinking the light emitting unit 70 composed of the three primary colors of red, green and blue light, it becomes possible to execute full-color light stimulation. Further, since it is possible to light or blink an arbitrary LED alone, it is possible to realize mixed color and multi-color light emission. Furthermore, since the above-mentioned lighting or blinking light emission can be executed by selecting or operating a predetermined key on the operation panel 50a, operability can be improved.

[0028]

As described above, the present invention can provide a photostimulator for an electroencephalograph that has a simple configuration and can output a full-color blinking pattern. Further, according to the second aspect of the present invention, since the driving current of the LED can be appropriately reduced, L
The life of the ED can be extended. Further, according to the third aspect of the invention, it is possible to execute the control of the light emitting element alone.

Further, according to the invention of claim 4,
Not only lighting control but also blinking control can be executed. Furthermore, according to the invention according to claim 5, by controlling the current flowing through the LED system by the switch unit and combining the control of the light emitting element alone,
Complex blinking control or pattern output can be performed. Furthermore, according to the invention of claim 6, it is possible to provide a light stimulation method for an electroencephalograph that has a simple configuration and is capable of outputting a full-color blinking pattern.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a photostimulator for an electroencephalograph according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a specific configuration of the electroencephalograph optical stimulation device.

FIG. 3 is a diagram illustrating an L executed by a CPU 10 of the electroencephalograph photostimulator.
It is a flowchart which shows the processing content of ED lighting processing.

FIG. 4 is a diagram showing an L executed by a CPU 10 of the electroencephalograph optical stimulator.
It is a flowchart which shows the processing content of ED blinking processing.

FIG. 5 is a block diagram showing a configuration of a conventional electroencephalograph optical stimulator.

[Explanation of symbols]

 C1 Light emitting element C1a Red LED C1b Green LED C1c Blue LED C2 Light emitting unit C2a Red LED system C2b Green LED system C2c Blue LED system C3 Switch unit C4 Light emission control unit

Claims (6)

[Claims] 1. An LED of three primary colors of red, green and blue light
A plurality of light emitting elements having the same color, and the light emitting elements are arranged in a matrix, and LEDs of the same color that are adjacent to each other in the same direction are connected to each other.
An LED light emitting unit forming an ED system; a switch unit including a switch for turning on and off a predetermined current flowing through the LED system of the same color connected by the light emitting unit; and performing a switch on / off control of the switch unit. A light emission control unit for controlling the lighting or extinguishing of the LED in each LED system by the LED light emitting unit. 2. The electrostimulator for an electroencephalograph according to claim 1, wherein the LED light-emitting unit includes a resistance unit having a predetermined resistance value at a start end to which a current of each LED system is applied. An optical stimulator for an electroencephalograph characterized by suppressing a current value flowing through the device. 3. The electrostimulator for electroencephalography according to claim 1, wherein the light emission control unit is connected to each light emitting element, and the switch unit is connected to each light emission element. An optical stimulator for an electroencephalograph, comprising a light emitting element switch for turning on and off a current applied to an element. 4. The electroencephalograph light stimulator according to claim 1, wherein the light emission control unit turns on and off each switch of the switch unit at a predetermined cycle, and controls the light emission of the light emission element. L
An optical stimulator for an electroencephalograph characterized by controlling blinking of an ED. 5. The electrostimulator for an electroencephalograph according to claim 1, wherein the light emitting element is a predetermined LED of the switch unit.
When the system switch is turned on and current is applied, this LED
An optical stimulator for an electroencephalograph, characterized in that only the LEDs on the system, to which current is applied by the light emitting element switch, are turned on or off. 6. An LED of three primary colors of red, green, and blue light.
And a plurality of light-emitting elements having the same color, and the light-emitting elements are arranged in a matrix and LEDs of the same color adjacent in the same direction
, A switch unit including a switch for turning on and off a predetermined current to the red, green, and blue LEDs connected by the light emitting unit, and a switch on / off control of the switch unit. And a light stimulation method for an electroencephalograph provided with a light emission control unit that controls the same color to be turned on or off in each column by the LED light emission unit. Generating a signal; inputting the control signal to switch on and off the switch unit; turning on and off the LEDs of the light emitting elements included in the light emitting unit according to the switch on and off of the switch unit. Flashing the electroencephalograph. Law.