CN204352004U - Novel light brush therapeutic instrument - Google Patents
Novel light brush therapeutic instrument Download PDFInfo
- Publication number
- CN204352004U CN204352004U CN201420401156.6U CN201420401156U CN204352004U CN 204352004 U CN204352004 U CN 204352004U CN 201420401156 U CN201420401156 U CN 201420401156U CN 204352004 U CN204352004 U CN 204352004U
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- therapeutic instrument
- coil
- novel light
- control circuit
- light brush
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Abstract
This utility model provides a kind of novel light brush therapeutic instrument, it comprises the coil of blue color filter, polaroid, magnetic rotation element, eyepiece, control circuit and the connection control circuit set gradually, this magnetic rotation element is arranged in coil magnetic field, this control circuit is connected with the coil two ends producing magnetic field respectively by control signal wire, and export periodicity control current signal to coil two ends, incident illumination is incident by blue color filter, polarized light is obtained via polaroid, then via magnetic rotation element, then from eyepiece outgoing.This novel light brush therapeutic instrument structure is simple, cost is low, noise is little, light and handy nimble, failure rate is low, and control accuracy is high.
Description
Technical field
This utility model relates to optical field, refers in particular to a kind of novel light brush therapeutic instrument being applied to ophthalmology amblyopia treatment.
Background technology
The physiological principle of light brush therapeutic instrument is based on moment extra large fourth grignard brush effect.Moment, extra large fourth grignard brush effect referred to that the immediate vicinity in this eye fixation direction can continue the image seeing similar high speed propeller when a therapist eye watch blue high light attentively by the polaroid that a piece rotates.Extra large fourth grignard brush effect instantaneously, we are referred to as light brush effect.Light brush effect only appears on central fovea of macula, because the central fovea of macula region that to be ocular vision the most responsive.Patient watches an image like brush or propeller attentively from the eyepiece of light brush therapeutic instrument, this effect only comes across the most responsive macula retinae district of vision, activating macula area pyramidal cell, making paracentral fixation move to center recess gradually by watching light brush attentively, thus raising vision, reach healing object.The therapeutic equipments that principle makes accordingly is exactly light brush therapeutic instrument.The treatment of light brush had both been applicable to the treatment of eyes paracentral fixation amblyopia, was also applicable to the treatment that eyes abnormal retinal is corresponding.
Light brush effect in traditional light brush therapeutic instrument be use mechanical mechanism rotate one be placed in white light source after the blue-tinted transparent disk posting polaroid realize.This kind of light brush therapeutic instrument often produces larger noise because using motor, and simultaneously because using motion, structure is very complicated, and also heavier, cost of manufacture is high, and instrument imaging control accuracy is poor, and the fault rate of instrument is higher.
Therefore, provide that a kind of structure is simple, cost is low, control accuracy is high, failure rate is low, noise are little, lightly nimble novel light brush therapeutic instrument is real in necessary.
Summary of the invention
The purpose of this utility model is to provide that a kind of structure is simple, noise is little, lightly nimble novel light brush therapeutic instrument.
For realizing this utility model object, provide following technical scheme:
This utility model provides a kind of novel light brush therapeutic instrument, it comprises the blue color filter set gradually, polaroid, magnetic rotation element, eyepiece, control circuit, and the coil of connection control circuit, this magnetic rotation element is arranged in coil magnetic field, this control circuit is connected with the coil two ends producing magnetic field respectively by control signal wire, and export periodicity control current signal to coil two ends, incident illumination is incident by blue color filter, polarized light is obtained via polaroid, then via magnetic rotation element, this magnetic rotation element controls polarized light generation deflection according to periodically controlling current signal, again from eyepiece outgoing, the polarization direction of the polarized light exported can rotate or swing in the angular range of setting under the effect of described control current signal.
This utility model light brush therapeutic instrument carrys out rotatory polarization sheet to realize traditional light brush therapeutic instrument of optically-active compared with adopting mechanical mechanism in prior art, structure is simpler, heavy frame for movement is not had to become more lightly nimble, magnetic rotation element is utilized to carry out control deflection to the polarization direction of the polarized light exported through polaroid, it is the optical rotation phenomenon that make use of polarized light cleverly, the thinking orientation broken traditions, creative thinking and outstanding substantive distinguishing features, and avoid the heaviness of traditional mechanical structure, noise is large, the shortcomings such as fault rate is high, this utility model light brush therapeutic instrument structure is simple, cost is low, noise is little, lightly nimble, failure rate is low, and, utilize magnetic rotation element, the control current signal more easy flexible modulation relatively of its control circuit, and control accuracy is high, therefore, this utility model has significant progress.
Preferably, the waveform of control current signal that this control circuit exports is sawtooth waveforms, and the minima of this sawtooth waveforms and optically-active differential seat angle corresponding to maximum are the integral multiples of 180 degree.The polarized light polarization direction that sawtooth waveforms control current signal can control to export rotates.
Preferably, the waveform of the control current signal that this control circuit exports is the consecutive variations waveform such as triangular wave or sine wave, and the polarization direction that can control the polarized light exported swings in the angular range of setting.Preferably, the polarization direction controlling emergent light corresponding to the intermediate value of the signal minimum in current signal waveform each cycle and maximum is horizontal direction.Preferably, the control current signal minima in each cycle and optically-active differential seat angle corresponding to maximum are less than or equal to 180 degree as required.
Preferably, the rotary speed of the polarized light polarization direction of output changes with control signal dynamic change, can change speed of rotation by the time-varying characteristics controlling electric current.
Preferably, the swing speed of the polarized light polarization direction of output changes with control signal dynamic change, can change the swing speed exporting polarized light polarization direction by the time-varying characteristics controlling electric current.
Preferably, the amplitude of fluctuation of the polarized light polarization direction of output can change with the difference change of control current amplitude.
Preferably, this magnetic rotation element is the paramagnetic of high Verdet constant or inverse magnetic rotation glass.
The polarization direction of polaroid can pre-determine as required, and preferably, the polarization direction of this polaroid is chosen to be horizontal direction.
Contrast prior art, the present invention has the following advantages:
Light brush therapeutic instrument of the present invention compared with prior art structure more simply, more lightly nimble, cost is low, noise is little, light and handy nimble, failure rate is low, and control accuracy is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model light brush therapeutic instrument;
Fig. 2 is that in this utility model, hypotenuse is the cyclic control signal schematic diagram of the sawtooth waveforms that straight line rises;
The cyclic control signal schematic diagram of Fig. 3 to be hypotenuse be sawtooth waveforms of the curve that a kind of uphill process is accelerated first quick and back slow again;
The cyclic control signal schematic diagram of the sawtooth waveforms of the curve slowed down again soon after Fig. 4 to be hypotenuse be a kind of uphill process is first slow;
The cyclic control signal schematic diagram of Fig. 5 to be hypotenuse be sawtooth waveforms that straight line declines;
The cyclic control signal schematic diagram of Fig. 6 to be hypotenuse be sawtooth waveforms of the curve that a kind of process that declines is accelerated first quick and back slow again;
The cyclic control signal schematic diagram of the sawtooth waveforms of the curve slowed down again soon after Fig. 7 to be hypotenuse be a kind of process that declines is first slow;
The cyclic control signal schematic diagram of Fig. 8 to be hypotenuse be triangular wave of straight line;
Fig. 9 is the crest curve wave period property control signal schematic diagram parallel with time shaft with the tangent line of trough;
The curve property wave period control signal schematic diagram on Figure 10 to be crest and trough be all pinnacle.
Detailed description of the invention
Refer to Fig. 1, this utility model light brush therapeutic instrument comprises the blue color filter 100, polaroid 200, magnetic rotation element 300, eyepiece 400, control circuit 510, the coil 520 that set gradually, this control circuit 510 is connected with coil 520 two ends by control signal wire 600, this magnetic rotation element 300 is arranged in coil 520 magnetic field, and the control signal that control circuit 510 produces is applied to the electric current in the coil 520 producing magnetic field.Incident illumination is incident by blue color filter 100, obtains polarized light, then via magnetic rotation element 300, then from eyepiece 400 outgoing via polaroid 200.Polarized light produces deflection through this magnetic rotation element 300 rear polarizer direction, and the polarization direction of the polarized light of output can rotate or swing in the angular range of setting under the effect of described control current signal.The polarization direction of polaroid 200 can be previously determined to be horizontal direction as required.
In specific embodiment, this magnetic rotation element 300 can be the paramagnetic of high Verdet constant or inverse magnetic rotation glass etc.The polarization direction of polaroid can be chosen to be horizontal direction.
Incorporated by reference to consulting Fig. 2 ~ 10, if need the blue polarized light polarization direction exported to rotate, the waveform being applied to the control electric current at coil 520 two ends can be the sawtooth waveforms of Changing Pattern as Suo Shi one of Fig. 2-Fig. 7.The minima in sawtooth current each cycle and optically-active differential seat angle corresponding to maximum are 180 degree, and the optical direction that Fig. 2-Fig. 4 is corresponding is contrary with optical direction corresponding to Fig. 5-Fig. 7.Speed of rotation can change with the change of control power frequency, and the speed of rotation that different current waveform is corresponding can be at the uniform velocity or the speed change of a certain rule.This waveform corresponding relation is relevant with the characteristic of coil 520 with magnetic rotation element 300, and after the structure of magnetic rotation element 300 and coil 520 and light path are fixed, the waveform that at the uniform velocity corresponding waveform is corresponding with other Changing Patterns just can be decided.
If need the blue polarized light polarization direction exported to swing, the waveform being applied to the control electric current on coil 520 is the triangular wave of Changing Pattern as Suo Shi one of Fig. 8-Figure 10 or the consecutive variations waveform such as sinusoidal wave, the polarization direction of the current minimum in each cycle and emergent light corresponding to the intermediate value of maximum is horizontal direction, and the current minimum in each cycle and optically-active differential seat angle corresponding to maximum are less than or equal to 180 degree as required.The swing speed of the blue polarized light polarization direction exported can change with the change of control power frequency, and the amplitude of fluctuation of the blue polarized light polarization direction of output can change with the difference change of control current amplitude.
The foregoing is only preferred embodiment of the present utility model, protection domain of the present utility model is not limited thereto, and anyly all belongs within this utility model protection domain based on the equivalent transformation in technical solutions of the utility model.
Claims (7)
1. a novel light brush therapeutic instrument, it is characterized in that, it comprises the coil of blue color filter, polaroid, magnetic rotation element, eyepiece, control circuit and the connection control circuit set gradually, this magnetic rotation element is arranged in coil magnetic field, this control circuit is connected with the coil two ends producing magnetic field respectively by control signal wire, and export periodicity control current signal to coil two ends, incident illumination is incident by blue color filter, polarized light is obtained via polaroid, then via magnetic rotation element, then from eyepiece outgoing.
2. novel light brush therapeutic instrument as claimed in claim 1, is characterized in that, the waveform of control current signal that this control circuit exports is sawtooth waveforms, and the minima of this sawtooth waveforms and optically-active differential seat angle corresponding to maximum are the integral multiples of 180 degree.
3. novel light brush therapeutic instrument as claimed in claim 1, is characterized in that, the waveform of the control current signal that this control circuit exports is triangular wave or sinusoidal wave consecutive variations waveform.
4. novel light brush therapeutic instrument as claimed in claim 3, is characterized in that, the polarization direction controlling emergent light corresponding to the intermediate value of the signal minimum in current signal waveform each cycle and maximum is horizontal direction.
5. the novel light brush therapeutic instrument as described in claim 3 or 4, is characterized in that, the control current signal minima in each cycle and optically-active differential seat angle corresponding to maximum are less than or equal to 180 degree.
6. novel light brush therapeutic instrument as claimed in claim 1, is characterized in that, this magnetic rotation element is the paramagnetic of high Verdet constant or inverse magnetic rotation glass.
7. novel light brush therapeutic instrument as claimed in claim 1, it is characterized in that, the polarization direction of this polaroid is chosen to be horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420401156.6U CN204352004U (en) | 2014-07-18 | 2014-07-18 | Novel light brush therapeutic instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420401156.6U CN204352004U (en) | 2014-07-18 | 2014-07-18 | Novel light brush therapeutic instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204352004U true CN204352004U (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420401156.6U Active CN204352004U (en) | 2014-07-18 | 2014-07-18 | Novel light brush therapeutic instrument |
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| CN (1) | CN204352004U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113812919A (en) * | 2021-04-26 | 2021-12-21 | 长春理工大学 | Yellow spot testing device and method based on polarization perception space-time sensitivity |
-
2014
- 2014-07-18 CN CN201420401156.6U patent/CN204352004U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113812919A (en) * | 2021-04-26 | 2021-12-21 | 长春理工大学 | Yellow spot testing device and method based on polarization perception space-time sensitivity |
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| GR01 | Patent grant |