CN102961248B - A vision care instrument - Google Patents

Abstract

The invention relates to a vision care instrument, which includes a case, two optical lens barrels, an electric pulse output circuit, a light control circuit and a thermal power control circuit. The electric pulse signal is output, the light control circuit controls the flickering of the light-emitting elements in the optical lens barrel, and the thermal power control circuit controls the constant temperature electrode sheet to output constant heat. The vision care instrument of the present invention organically combines the three effects of electric stimulation, light stimulation and thermal massage to achieve fast elimination of visual fatigue, the effect is remarkable, and it is not easy to produce adaptability.

Description

A vision care instrument

technical field

The invention relates to a medical health product for physical therapy, in particular to a vision protection device.

Background technique

As modern life enters the era of high informationization, people's access to information is increasingly dependent on visual means. More than 70% of information enters the human brain through visual forms. The time and degree of eye use of people have doubled compared with the past. Eye fatigue and blurred vision is a troublesome problem for teenagers and seniors alike. Among teenagers, due to the increased academic burden, coupled with the popularization of computers, TVs and mobile phones in modern families, teenagers grow up in an environment with various light pollution, and visual fatigue has become the most common problem. If this fatigued state continues for a long time, it will lead to further deterioration of vision. In recent years, the number of teenagers who wear glasses is increasing exponentially, and the decline of eyesight of the elderly is also significantly accelerated.

Vision care instruments on the market now adopt a single physical therapy, which is prone to adaptability, and the effect of improving vision is gradually weakened.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a kind of eyesight care instrument that can eliminate eyesight fatigue quickly.

In order to achieve the above object, the technical solution provided by the present invention is: a vision care instrument, including a chassis, two optical lens barrels, an electric pulse output circuit, a light control circuit and a thermal power control circuit, the two optical lens barrels are arranged on On the chassis, the electric pulse circuit outputs electric pulse signals through the electrode sheets, the light control circuit controls the flickering of the light-emitting elements in the optical lens barrel, and the thermal power control circuit controls the constant temperature electrode sheets to output constant heat.

Further, the electric pulse output circuit includes a first single-chip microcomputer control unit, a frequency adjustment unit, a signal amplification unit and a signal strength adjustment unit, the electric pulse signal generated by the first single-chip microcomputer control unit is adjusted by the frequency adjustment unit, and then enters the signal amplification unit The signal is amplified, and then enters the intensity adjustment unit, and its intensity is adjusted by the signal intensity adjustment unit to output an electric pulse signal of appropriate frequency and intensity.

Further, the electrical pulse output circuit also includes a waveform selection unit, which is electrically connected to the first single-chip microcomputer, and used to select the waveform of the output electrical pulse signal.

Further, the light control circuit includes a second single-chip microcomputer control unit, a digital-to-analog conversion unit, an analog signal amplification unit, a light intensity adjustment unit, and a load unit. The digital signal of the flicker frequency generated by the second single-chip microcomputer control unit is passed through the digital signal. The analog conversion unit converts it into an analog signal, and then transmits it to the analog signal amplification unit for signal amplification, and then adjusts its intensity through the light intensity adjustment unit, and then outputs an electrical signal with a suitable flicker frequency through the load unit.

Further, the light control circuit also includes a flashing waveform selection unit connected to the second single-chip microcomputer control unit, for selecting the waveform of the output electric signal.

Further, the heat output circuit includes a power regulator and a constant temperature electrode sheet, and the power regulator is connected to the constant temperature electrode sheet to control the constant temperature electrode sheet to output constant heat.

The light-emitting element is an LED lamp capable of emitting a wavelength of 532nm.

Compared with the prior art, the present invention has the following positive effects: 1. The vision care instrument of the present invention will organically combine electrical stimulation, light stimulation and thermal effects to quickly achieve the effect of eliminating visual fatigue; 2. Users can choose Electric pulse currents of different frequencies and intensities, lights of different flickering frequencies and different degrees of heat are not easy to produce adaptability and can maintain good therapeutic effects; Promotion in remote areas and rural areas.

For better understanding and implementation, the present invention will be described in detail below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is a schematic diagram of the appearance structure of the vision care instrument of the present invention.

Fig. 2 is a circuit frame diagram of the electric pulse output circuit of the vision care apparatus of the present invention.

Fig. 3 is a schematic circuit diagram of the electric pulse output circuit of the vision care instrument of the present invention.

Fig. 4 is a circuit frame diagram of the light control circuit of the vision care device of the present invention.

Fig. 5 is a schematic circuit diagram of the light control circuit of the vision care device of the present invention.

Detailed ways

Please refer to FIG. 1 , which is a schematic diagram of the appearance structure of the vision care device of the present invention. The vision care device of the present invention includes a chassis 10, two optical lens barrels 101, an electric pulse output circuit 20, a light control circuit 30 and a heat output circuit. Two optical lens barrels 101 are arranged on the front end of the chassis 10 to correspond to human eyes; the electric pulse output circuit 20, the light control circuit 30 and the heat output circuit are arranged in the accommodation space of the chassis 10, and the chassis 10 is provided with a power switch 11. Waveform selection button 12, flashing waveform selection button 13, frequency adjustment knob 14, amplitude adjustment knob 15, light intensity adjustment knob 16, heat adjustment knob 17, electric pulse output jack 18 and heat output jack 19.

Please refer to FIG. 2 and FIG. 3 at the same time, wherein FIG. 2 is a circuit frame diagram of the electric pulse output circuit 20 of the vision care instrument of the present invention, and FIG. 3 is a schematic circuit diagram shown in FIG. 2 . The electric pulse output circuit 20 includes a power supply voltage stabilizing unit 21 , a first single-chip microcomputer control unit 22 , a waveform selecting unit 23 , a frequency adjusting unit 24 , a signal amplifying unit 25 and a signal strength adjusting unit 26 . The power voltage stabilizing unit 21 provides stable power for the first single-chip microcomputer control unit 22 , the waveform selection unit 23 , the frequency adjustment unit 24 , and the signal amplifying unit 25 . The waveform selection unit 23 and the frequency adjustment unit 24 are respectively electrically connected to the first single-chip microcomputer control unit 22 . Through the control of the waveform selection unit 23, the first single-chip control unit 22 generates electric pulse signals of different frequencies. After the electric pulse signal is adjusted by the frequency adjustment unit 24, it enters the signal amplification unit 25 for signal amplification, and then enters the intensity adjustment. unit, adjust its strength through the signal strength adjustment unit 26, so as to output an electric pulse signal with a suitable frequency and strength.

Specifically, the first single-chip microcomputer control unit 22 includes a first single-chip microcomputer 221 and a first oscillation unit. The first single-chip microcomputer 221 generates electric pulse signals. In the present embodiment, the model of the first single-chip microcomputer 221 is STC 12C5202AD, which has the advantages of low energy consumption, high speed and good vibration resistance. The first oscillator unit is an auxiliary unit of the first single-chip microcomputer 221, which includes a first crystal oscillator 222, a first capacitor 223 and a second capacitor 224, and one end of the first capacitor 223 is connected to one end of the first crystal oscillator 222, and connected to connected to a pin of the first single-chip microcomputer 221, the second capacitor 224 is connected to the other end of the first crystal oscillator 222, and connected to another independent pin of the first single-chip microcomputer 221. The other ends of the first capacitor 223 and the second capacitor 224 are connected in series and grounded, and the first crystal oscillator 222 transmits the signal to the first microcontroller 221 . The first oscillator unit is connected to the first single-chip microcomputer 221 to provide timing for the first single-chip microcomputer 221 .

The power supply voltage stabilizing unit 21 includes a three-terminal voltage regulator 211 , a first polarity capacitor 212 , a second polarity capacitor 214 and a first resistor 213 . The input end of the three-terminal voltage regulator 211 is connected to an external power supply, its output end stably outputs +5V voltage, and its common end is grounded. The three-terminal voltage regulator 211 performs step-down and voltage stabilization processing on the external power supply. In this embodiment, the model of the three-terminal regulator 211 is LM7805CT. The first polarity capacitor 212 is connected in series with the first resistor 213, and then connected in parallel with the second polarity capacitor 214, and one end thereof is connected to the output end of the three-terminal voltage regulator 211, and connected to the first microcontroller 221 One pin, the other end of which is connected to another pin of the first single-chip microcomputer 221.

The waveform selection unit 23 includes three waveform selection switches 231, one end of the three waveform selection switches 231 is connected in series and grounded, and the other end of each waveform selection switch 231 is respectively connected to the input end of the first single-chip microcomputer 221 independently, Each input end corresponds to a specific waveform signal on the first single-chip microcomputer 221 respectively. Further, each waveform selection switch 231 is an independent waveform selection button 12 on the chassis 10 . The waveform selection button 12 is a jog button. Press any waveform selection button 12 to close the corresponding waveform selection switch 231. It is set to close any waveform selection switch 231 of the unit and disconnect other waveform selection switches 231 at the same time. The waveform selection unit 23 provides the user with electrical pulse signals of three different waveforms for selection, and the user presses the waveform selection button 12 to select a corresponding electrical pulse signal.

The frequency adjustment unit 24 includes a third polarity capacitor 241 and a first variable resistor 242, one end of the third polarity capacitor 241 and the first variable resistor 242 is connected in series and grounded, and the third polarity capacitor The other end of 241 is connected with the adjusting end of the first variable resistor 242, and connected to a pin of the first single-chip microcomputer 221, and the other end of the first variable resistor 242 is connected with the three-terminal regulator 211 The output terminal is connected and connected to a pin of the first single-chip microcomputer 221. By adjusting the first variable resistor 242, the input voltage value of the pin can be changed between 0-5V, and the internal program of the microcontroller outputs electrical signals of different frequencies according to the voltage value of the pin; the output frequency varies with the input voltage The value changes linearly. The third polarity capacitor 241 plays the role of filtering the whole wave in this unit, and when the resistance value of the first variable resistor 242 changes, the frequency of the electric pulse signal outputted by it changes accordingly. The adjustment end of the first variable resistor 242 is matched with the frequency adjustment knob 14, and turning the frequency adjustment knob 14 can control the movement of the adjustment end of the first variable resistor 242 to change the resistance value of the first variable resistor 242 size, so as to achieve the purpose of adjusting the signal frequency.

The signal amplifying unit 25 includes a first transistor 251 , a second transistor 252 , a third transistor 253 and a transformer 254 . The base of the first triode 251 is connected to a pin of the first single chip microcomputer 221 after a resistor is connected in series; The output terminal is connected to and connected to a pin of the first microcontroller 221; the emitter of the first triode 251 is grounded. The base of the second triode 252 is connected to the collector of the first triode 251 after a resistor is connected in series, and at the same time, a resistor is connected in series to the emitter of the first triode 251 and grounded; The collector of the second transistor 252 is connected to the base of the third transistor 253 after being connected in series with a resistor; the emitter of the second transistor 252 is grounded. The base of the third triode 253 is connected to the input end of the three-terminal voltage regulator 211 after a resistor is connected in series; the collector of the third triode 253 is connected to the transformer 254; the third triode 253 The emitter of is connected to the input terminal of the three-terminal voltage regulator 211. After the signal is amplified by the first triode 251 , the second triode 252 and the third triode 253 , the signal is output to the signal strength adjustment unit 26 through the transformer 254 through transformer coupling.

The signal strength adjusting unit 26 includes a second variable resistor 261 , and the strength of the output electric pulse signal can be adjusted by changing the resistance value of the second variable resistor 261 . The adjustment end of the second variable resistor 261 is matched with the amplitude adjustment knob 15, and the rotation of the amplitude adjustment knob 15 can control the movement of the adjustment end of the second variable resistor 261 so as to change the resistance value of the second variable resistor 261 , and then achieve the purpose of adjusting the output intensity.

When the power switch 11 is turned on, the external power supply is connected with the circuit between the electric pulse output circuit 20, and the power supply voltage stabilizing unit 21 is a first single-chip microcomputer control unit 22, a waveform selection unit 23, a frequency adjustment unit 24, and a signal amplification unit 25 Provide stable voltage. Close any waveform selection switch 231 to select a waveform, connect the circuit, the first single-chip microcomputer 221 outputs the electric pulse signal of the corresponding waveform, and the frequency of the electric pulse signal is adjusted by the frequency adjustment unit 24, and then the signal is amplified After the signal is amplified by the unit 25 and regulated by the signal strength adjustment unit 26, the electric pulse signal suitable for stimulating the acupoints of the human body is output from the electrode sheet 181 through the electric pulse output jack 18 and the wire. When in use, the electrode sheet 181 is closely attached to the temple of the human body, and the electric pulse current is applied to the temple. The waveform generated by the electric pulse output circuit 20 has a better effect on improving eyesight, is less prone to electrical adaptation, and keeps eyesight longer.

Please refer to FIG. 4 and FIG. 5 at the same time, wherein FIG. 4 is a circuit frame diagram of the light control circuit 30 of the vision care device of the present invention, and FIG. 5 is a circuit schematic diagram shown in FIG. 4 . The light control circuit 30 includes a flicker waveform selection unit 31 , a second microcontroller control unit 32 , a digital-to-analog conversion unit 33 , an analog signal amplification unit 34 , a light intensity adjustment unit 35 and a load unit 36 . The flicker waveform selection unit 31 and the digital-to-analog conversion unit 33 are respectively connected with the second single-chip control unit 32, and the waveform is selected by the flicker waveform selection unit 31, so that the second single-chip control unit 32 produces the digital signal of the flicker frequency, the digital signal It is converted into an analog signal by the digital-to-analog conversion unit 33 , and then sent to the analog signal amplifying unit 34 for signal amplification, and then the intensity is adjusted by the light intensity adjusting unit 35 , and an electrical signal with a suitable flicker frequency is output through the load unit 36 .

Specifically, the second single-chip microcomputer control unit 32 includes a second single-chip microcomputer 321 and a second vibrating unit. One pin of the second single-chip microcomputer 321 is connected to the positive pole of the external power supply in series, and the other independent pin is grounded, which is used for generating digital signals. In this embodiment, the model of the second single-chip microcomputer 321 of the light control circuit 30 is AT89S52, which has the advantages of low energy consumption and high performance. The second oscillator unit is an auxiliary unit of the second single-chip microcomputer 321, including a second crystal oscillator 322, a third capacitor 323 and a fourth capacitor 324, one end of the third capacitor 323 is connected to one end of the second crystal oscillator 322, and connected to connected to a pin of the second single-chip microcomputer 321, the fourth capacitor 324 is connected to the other end of the second crystal oscillator 322, and connected to another independent pin of the second single-chip microcomputer 321. The other ends of the third capacitor 323 and the fourth capacitor 324 are connected in series and grounded, and the second crystal oscillator 322 transmits the signal to the second microcontroller 321 . The second oscillating unit is connected to the second single-chip microcomputer 321 to provide timing for the second single-chip microcomputer 321 .

The flicker waveform selection unit 31 includes three flicker waveform selection switches 311, one end of the three flicker waveform selection switches 311 is connected in series and grounded, and the other end of each flicker waveform selection switch 311 is respectively connected to an independent second single-chip microcomputer 321 Input terminals, each input terminal corresponds to a specific flashing waveform signal on the second single-chip microcomputer 321 respectively. Each blinking waveform selection switch 311 is an independent blinking waveform selection button 13 on the chassis 10 . The flickering waveform selection button 13 is a jog button. Press any flickering waveform selection button 13 to close the corresponding flickering waveform selection switch 311, and set it to close any flickering waveform selection switch 311 of the unit while disconnecting other flickering waveform selections. Switch 311. The blinking waveform selection unit 31 provides the user with three digital signals of different waveforms for selection, and the user presses the blinking waveform selection button 13 to select the corresponding digital signal.

The digital-to-analog conversion unit 33 includes a digital-to-analog conversion integrated chip 331. In this embodiment, the model of the digital-to-analog conversion integrated chip 331 is DAC0832LCN, which has the advantages of low price, simple interface, and easy conversion control. The data input line of the digital-to-analog conversion integrated chip 331 is connected to the output end of the second single-chip microcomputer 321 . The data latch of the digital-to-analog conversion integrated chip 331 allows the control signal input line to be connected in series with the chip select signal input line to be connected to the positive pole of the power supply. The data latch write strobe input line of the DAC integrated chip 331 , its DAC register strobe input line and its data transmission control signal input line are connected in series and grounded. The reference voltage input line of the digital-to-analog conversion integrated chip 331 is connected in series with the power supply input end and connected to the positive pole of the power supply. The analog signal ground of the digital-to-analog conversion integrated chip 331 is connected in series with the digital signal ground and grounded.

The analog signal amplifying unit 34 includes an operational amplifier 341, which is externally connected to a 12V voltage. The input terminal of the operational amplifier 341 is connected to the current output terminal of the digital-to-analog conversion integrated chip 331, and the output terminal of the operational amplifier 341 is connected to the digital-to-analog conversion integrated chip 331. The feedback signal input line is connected. In this embodiment, the model of the operational amplifier 341 is LM741CN.

The light intensity adjustment unit 35 includes a third variable resistor 351, one end of the third variable resistor 351 is connected to the output end of the operational amplifier 341, and the other end of the third variable resistor 351 is connected to the digital-to-analog converter. The analog signal ground of the integrated chip 331 is connected to the ground, and the adjustment terminal of the third variable resistor 351 is connected to the load unit 36 . The output intensity can be adjusted by changing the resistance value of the third variable resistor 351 , and when the resistance value of the third variable resistor 351 changes, the intensity of the electrical signal output by it changes accordingly. The adjustment end of the third variable resistor 351 is matched with the light intensity adjustment knob 16, and turning the light intensity adjustment knob 16 can control the movement of the adjustment end of the third variable resistor 351 to change the resistance of the third variable resistor 351. The value changes to adjust the intensity of the light source.

The load unit 36 includes at least one light-emitting element 361, one end of each light-emitting element 361 is connected in series and connected to the adjustment end of the third variable resistor 351, and the other end is connected to the analog signal ground of the digital-to-analog conversion integrated chip 331 and grounded. The light emitting element 361 is disposed in the optical lens barrel 101 and is located at one end of the optical lens barrel 101 connected to the chassis 10 , and the other end of the optical lens barrel 101 is provided with a convex lens 102 . The optical lens barrel 101 is not connected to the chassis 10 , and the light of the light emitting element 361 is confined in the optical lens barrel 101 . In this embodiment, the light emitting element 361 is an LED lamp capable of emitting a wavelength of 532nm.

When the power switch 11 is closed, the circuit between the external power supply and the light control circuit 30 is connected. Close any flicker waveform selection switch 311 to select a flicker waveform, connect the circuit, and the second single-chip microcomputer 321 outputs the corresponding digital signal, and the digital signal is converted into an analog signal by the digital-to-analog conversion unit 33 and sent to the analog signal amplifying unit 34, After the analog signal is amplified by the analog signal amplifying unit 34 , and then adjusted by the light intensity adjusting unit 35 , the light emitting element 361 of the load unit 36 emits flashing green light with a suitable stimulation intensity. The convex lens 102 focuses the green light to act on human eyes. The light control circuit 30 uses low-intensity flashing green light to stimulate eyeballs, activate visual cells, and have an obvious effect of relieving visual fatigue.

The heat output circuit includes a power regulator (not shown in the figure), which is connected to an external power supply in series. By changing the temperature control terminal of the power regulator, its output power can be changed, and the output heat will also change accordingly. The temperature control end of the power regulator (not shown in the figure) is matched with the heat adjustment knob 17, and the heat adjustment knob 17 can be turned to control the output of the power regulator (not shown in the figure) so as to change the heat output of the constant temperature electrode sheet 191, and then To achieve the purpose of adjusting the output intensity.

When the power switch 11 is closed, the circuit between the external power supply and the heat output circuit is connected, and after being regulated by the power regulator (not shown in the figure), the appropriate power is output. 191 outputs heat suitable for massaging the acupoints of the human body. When in use, the constant temperature electrode piece 191 is closely attached to the Fengchi acupoint of the human body. Apply heat to the Fengchi point. The heat output circuit outputs heat to massage the Fengchi acupoint on the back of the neck. Fengchi acupoint is an acupoint that has a great impact on the visual system. It can refresh the mind and effectively relieve visual fatigue.

Compared with the prior art, the vision care device of the present invention organically combines the three effects of electrical stimulation, light stimulation and thermal massage: using electric pulses to activate the visual function areas of the brain; using low-intensity green light to stimulate the eyeballs, Activate the visual cells; then massage the Fengchi point on the back of the neck through the electric heating pad. The three effects act on the human body at the same time, quickly eliminate visual fatigue, the effect is obvious, and the curative effect is more durable. Moreover, the waveform, frequency and intensity of the electric pulse can be adjusted, the frequency and light intensity of the green light flicker can be adjusted, and the heat can be adjusted, so that the human body is not easy to adapt, and long-term use still has good curative effect. The invention is compact and easy to operate, is suitable for use in families, and is also convenient for popularization in remote areas and rural areas.

The above description is only a preferred embodiment of the present invention, and its structure is not limited to the shapes listed above. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in this document. within the scope of protection of the invention.

Claims (6)

1. a sight health apparatus, it is characterized in that: comprise cabinet, two optical tubess, electric pulse output circuit, light-operated circuit and thermal power control circuits, these two optical tubess are arranged on cabinet, this electrical pulse circuit is by electrode slice output electric pulse signal, the flicker of the light-emitting component in this this optical tubes of light-operated circuit control, thermal power control circuit control constant temperature electrode slice is exported constant heat; This thermal power control circuit comprises power governor and constant temperature electrode slice, and this power governor is connected with described constant temperature electrode slice, exports constant heat to control this constant temperature electrode slice.

2. sight health apparatus as claimed in claim 1, it is characterized in that: this electric pulse output circuit comprises the first Single-chip Controlling unit, frequency adjustment unit, signal amplification unit and signal intensity regulon, after this electric impulse signal that this first Single-chip Controlling unit produces regulates by frequency adjustment unit, entering signal amplifying unit carries out signal amplification, then enter intensity adjustments unit, by signal intensity regulon, its intensity is regulated, to export the electric impulse signal of proper frequency and intensity.

3. sight health apparatus as claimed in claim 2, is characterized in that: this electric pulse output circuit also comprises waveform selected cell, it is electrically connected with the first single-chip microcomputer, in order to select the waveform of output electric pulse signal.

4. sight health apparatus as described in claim 1 or 2 or 3, it is characterized in that: this light-operated circuit comprises second singlechip control unit, D/A conversion unit, analogue signal amplifying unit, light intensity regulating unit and load unit, the digital signal of the flicker frequency that this second singlechip control unit produces, this digital signal is converted to analogue signal by D/A conversion unit, then be sent to analogue signal amplifying unit and carry out signal amplification, after its intensity being regulated by light intensity regulating unit again, export the signal of telecommunication of suitable flicker frequency by load unit.

5. sight health apparatus according to claim 4, is characterized in that: this light-operated circuit also comprises the flicker waveform selected cell being connected with this second singlechip control unit, in order to select the waveform of output electrical signals.

6. sight health apparatus as claimed in claim 1, is characterized in that: described light-emitting component is to send the LED lamp that wavelength is 532nm.