CN109847193A - Portable visual acuity protective device - Google Patents
Portable visual acuity protective device Download PDFInfo
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- CN109847193A CN109847193A CN201910014530.4A CN201910014530A CN109847193A CN 109847193 A CN109847193 A CN 109847193A CN 201910014530 A CN201910014530 A CN 201910014530A CN 109847193 A CN109847193 A CN 109847193A
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- light source
- laser light
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- visual acuity
- protective device
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Abstract
The present invention is suitable for sight protectio technical field.The present invention discloses a kind of portable visual acuity protective device, connect including main body and with main body and loads and unloads fixed part for stationary body, and the micropower laser light source of irradiation eyes and the control circuit of periodically control micropower laser light source work are equipped in the main body.When use, main body and mobile phone, books or computer are fixed by fixed part, after fixing, open power supply, control circuit controls micropower laser light source and periodically carries out micropower laser irradiation to eyes, eyeball is allowed to absorb micropower laser energy, it plays and promotes eyeball inside and lenticular blood circulation, to enhance crystalline lens self-regulation ability, the bad crystalline lens regulating power caused by eye habit and the tired eye of long-time is avoided to weaken, to play to eye health, pre- myopia prevention and the effect for improving eyesight.There is preferable rectification effect to myopia simultaneously.
Description
Technical field
The present invention relates to sight protectio technical field more particularly to a kind of portable visual acuity protective devices.
Background technique
Existing children and adolescents are in school work important period, with long between at the moment, generally occur within excess eye-using situation.Simultaneously
Electronic product such as smart phone, tablet computer etc. is powerful, and children and youth has also been attracted to like using and then increasing
Virgin, teenager is born with eye.
Hypometropia is mainly related with eye habit, wherein incorrect for a long time use eye, increases eyeball burden, influences eyeball
Blood circulation causes the crystalline lens automatic regulation function in eyeball to weaken, to generate myopia.It is few how children blueness is efficiently modified
Year is accustomed to eye, prevents and improve myopia, more and more urgently.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of portable visual acuity protective device, portable visual acuity protections
Device effective protection eyesight and can improve eyesight to avoid with asthenopia.
In order to solve the above technical problem, the present invention provides a kind of portable visual acuity protective device, which is protected
Protection unit includes main body and connect the fixed part for stationary body with main body, and the micropower that irradiation eyes are equipped in the main body swashs
The control circuit of radiant and periodically control micropower laser light source work.
It further says, the micropower laser light source includes about 650 nanometers of at least one wavelength of red laser, this is red
Color laser spot diameter is greater than 5mm.
It further says, the micropower laser light source power is less than 5 milliwatts.It further says, the fixed part includes
Fixed clamp member, movable clamping part part and making keep the elastic portion clamped between fixed clamp member and movable clamping part part
Part, and the shaft for rotating fixed clamp member and movable clamping part part.
Further say, be equipped in the main body battery being electrically connected with control circuit and micropower laser light source and with control
Circuit connection processed is the charging interface of battery charging.It further says, the main body is micro- equipped with control is connected to the control circuit
The selection control switch of power laser sources duty cycle.It further says, the main body is equipped with and connects to the control circuit control
The selection control switch of micropower laser light source working time length processed.It further says, the main body is equipped with and control electricity
The working station indicator of road connection.It further says, is equipped in the main body and connect wireless module with control circuit signal, lead to
Cross the terminal setting remote control operation for being equipped with APP software.
It further says, the fixed part includes that fixed sucker or gummed paper are bonded with display screen.
Further to say, the vision protection device further includes the distance detection unit connecting with control circuit signal, when
When distance detection unit senses that eye distance laser light source is less than preset value, the control of distance detection unit trigger control circuit is micro-
Power laser sources stop working.
It further says, the vision protection device further includes the prompt unit connected to the control circuit, when distance detects
When unit detects that eye distance laser light source is less than preset value, it is defeated that distance detection unit trigger control circuit controls prompt unit
It prompts out.
It further says, the fixed part includes the locking member for preventing children and youth from arbitrarily unloading the present apparatus.
Portable visual acuity protective device of the present invention connect the fixed part for stationary body including main body and with main body, should
The micropower laser light source of irradiation eyes and the control circuit of periodically control micropower laser light source work are equipped in main body.Make
Main body and mobile phone, books or computer are fixed by fixed part, allow micropower laser that can irradiate eyes of user by the used time.
After fixing, opens control switch or booted up by controls such as wireless remote control such as Bluetooth transmissions, micropower laser light
Source is big less than 5 milliwatts, laser spot diameter to about 650 nanometers of wavelength of eyes progress, power in control circuit control periodical
In the laser irradiation of 5mm, eyeball is allowed to absorb micropower laser energy, plays and promote eyeball inside and lenticular blood circulation,
And the lenticular self-regulation ability of enhancing, avoid being followed the string with asthenopia for a long time, thus effectively play eyesight health,
Pre- myopia prevention and the effect for improving eyesight, and have the preferable effect of correcting defects of vision to myopia.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the attached drawing in description illustrates only the present invention
Some embodiments, therefore be not construed as the restriction to range, for those of ordinary skill in the art, do not paying
Under the premise of creative work, it can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 is portable visual acuity protective device embodiment circuit structure schematic diagram.
Fig. 2 is portable visual acuity protective device example structure schematic diagram.
Fig. 3 is that portable visual acuity protective device is applied to mobile phone example structure schematic diagram.
Fig. 4 is that portable visual acuity protective device is applied to another angle schematic diagram of mobile phone embodiment.
Fig. 5 is that portable visual acuity protective device is applied to mobile phone embodiment side structure schematic view.
Fig. 6 is that portable visual acuity protective device is applied to mobile phone example structure schematic diagram.
Fig. 7 is that portable visual acuity protective device is applied to display screen example structure schematic diagram.
Fig. 8 is that portable visual acuity protective device is applied to display screen embodiment side structure schematic view.
Fig. 9 is that portable visual acuity protective device is applied to display screen embodiment positive structure diagram.
Figure 10 is that portable visual acuity protective device is applied to another example structure schematic diagram of display screen.
Figure 11 is that portable visual acuity protective device is applied to display screen embodiment side structure schematic view.
Figure 12 is another example structure schematic diagram of fixed part.
Figure 13 is the side structure schematic view of the fixed device of fixed part in Figure 12.
Figure 14 is that portable visual acuity protective device is applied to Telescopic base example structure schematic diagram.
Figure 15 is that portable visual acuity protective device is applied to reading stand example structure schematic diagram.
Figure 16 is that portable visual acuity protective device is applied to tablet computer protective sleeve example structure schematic diagram.
Below with reference to embodiment, and referring to attached drawing, the realization, the function and the advantages of the object of the present invention are made furtherly
It is bright.
Specific embodiment
In order to illustrate more clearly of technical solution of the present invention, combined with specific embodiments below and attached drawing is to power of the invention
Benefit requires to be described in further detail, it is to be understood that and the following drawings only illustrates certain embodiments of the present invention, because
This is not construed as the restriction to range, the modification of anyone limited times made within the scope of the invention as claimed, still
Within scope of the presently claimed invention.
It is to be appreciated that in the description of the present invention, it should be noted that the orientation of the instructions such as term " on ", "lower"
Or positional relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when the orientation usually put
Or positional relationship, it is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning
It must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In addition,
Term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
As shown in Figure 1, Figure 2 and Figure 3, the present invention provides a kind of portable visual acuity protective device embodiment.
The portable visual acuity protective device includes: main body 1 and connect the fixed part 3 for stationary body 1 with main body 1, should
The micropower laser light source 2 of irradiation eyes and the control circuit of periodically control micropower laser light source work are equipped in main body 1
1 '.
Specifically, 1 ' of control circuit includes controller MCU and peripheral circuit composition.The micropower laser light source
Can using one or more than one, the present embodiment is by taking two micropower laser light sources as an example, i.e. the first micropower laser light
2 ' of source 2 and the second micropower laser light source, which all uses about 650 nanometers of wavelength, power less than 5 milliwatts,
And laser spot diameter is greater than the laser of 5mm, especially red laser.By the micropower laser irradiation eyes for testing the wavelength
When, the blood circulation inside eyeball can be promoted very well.The power supply for control circuit 1 ' and power supply is equipped in the main body 1, such as
Battery 26.The power supply as needed can also power using with external power supply.
The control circuit 1' is made of controller MCU, and controller MCU includes single-chip microcontroller, and battery 26 is opened by power supply
It closes 4 to power to control circuit 1', by 5 trigger controller 1' of first switch, corresponding control journey is provided in 1 ' of the controller
Sequence, the control program be preset with periodically control the first micropower laser light source 2 and the second micropower laser light source 2' transmitting and
Shut-in time, corresponding indicator light 6 work.Electric energy is exported to the first micropower by 7 trigger control circuit 1' of second switch again
Laser light source 2 and the second micropower laser light source 2' are timed irradiation user's eyes, and corresponding indicator light 8 is lighted.The control
Circuit processed is additionally provided with for detecting between user's eyes and the first micropower laser light source 2 and the second micropower laser light source 2'
The range sensor 9 of distance, can be to avoid the too close eyes for influencing user of distance when using.
In use, the data of acquisition are transported to controller by range sensor 9, when this distance be less than set safety away from
From when, controller output signal control to prompt unit 10, including loudspeaker etc., the prompt that gives a warning makes the prompt unit 10
User's eye is too near to the first micropower laser light source 2 and the second micropower laser light source 2', while controller is immediately controlled the
One micropower laser light source 2 and the second micropower laser light source 2' stop working, to protect user's eyes not by laser hazard.
As needed all item controlleds of infra-red remote control control circuit 1' can also be carried out by infrared receiver 11.Infrared ray simultaneously
Remote controler plays the role of wireless key.When 26 low battery of battery, is charged by charging interface 12 or pass through charging
Interface 12 connects external power supply and powers to control circuit 1'.
As Figure 2-Figure 5, fixed part 3 first can be also possible to separated structure with 1 integral structure of main body when use,
If fixed part 3 is installed to the bottom of main body 1, locks screw 13 and main body 1 is fixed to above fixed part 3, open the bottom of main body 1
On power switch 4, control circuit 1' is powered, then mobile phone or tablet computer 23 are put into inside the clamping of fixed part 3, activity
Clamping part 3' regulates the tightness of clamping and mobile phone, the tight lock part 14 above locking clamping 3', then presses the control of first switch 5
Laser light source periodic duty, will adjust the duty cycle working time by selection of time switch is 10 minutes or 15 minutes to be
One period.The laser period, which can according to need, to be set, and corresponding indicator light 6 is lighted, then cell phone or plate electricity
Brain 23 after the safe distance of 30~40CM, presses laser alignment with hand to the distance of human body eye and laser light source 2 and 2'
Two switches 7, the first micropower laser light source 2 and the second micropower laser light source 2' start to work, and then adjust the first micropower
The laser that the angle of laser light source 2 emits left side laser light source 2 is to positive left eye, then adjusts the second micropower laser light source 2'
Angle make the laser of the right laser light source 2' transmitting to positive right eye, adjust separately the micropower laser light sources hair of left and right two
The laser penetrated all irradiates positive left and right eye, and irradiation time can be set to 30 seconds or 1 minute, which can basis
It is set, while control circuit starts timing, is previously switched off launch time first switch 5 when controller timing reaches
When 10 minutes set time or 15 minutes, control circuit starts to export electric energy to the first micropower laser light source 2 and the
Two micropower laser light source 2', the first micropower laser light source 2 and the second micropower laser light source 2' start to emit laser, are sent out
It penetrates laser to start to irradiate the eyes of user, allows the blood in the eyes eyeball of user to increase circulation, when Laser emission continues
Between the lasting transmitting in 30 seconds or 1 minute according to set by Laser emission second switch 7, when Laser emission persistently reaches setting value
Afterwards, control circuit 1', which is automatically stopped, provides electric energy to the first micropower laser light source 2 and the second micropower laser light source 2', and first
Micropower laser light source 2 and the second micropower laser light source 2' stop transmitting laser, and control circuit 1' completes a transmitting laser
Period, while control circuit 1' initially enters the timing in second transmitting laser period, and so on, control circuit 1' control the
One micropower laser light source 2 and the second micropower laser light source 2' timing and circulation transmitting laser irradiation cellie eyes,
Timing carries out micro- laser irradiation to user's eyes, allows the eyeball of user's eyes to absorb micropower laser energy, promotes eyeball
Internal and lenticular blood circulation, enhances lenticular self-regulation ability, avoids being followed the string with asthenopia for a long time,
To effectively play eyesight health, pre- myopia prevention and the effect for improving eyesight, and there is the preferable effect of correcting defects of vision to myopia.
In use, when the eye of user is too near to the first micropower laser light source 2 and the second micropower laser
When light source 2 ", range sensor 9 detects eye close to signal, this signal is sent to control circuit 1' by range sensor 9, control
Circuit 1' processed stops providing electric energy to the first micropower laser light source 2 and the second micropower laser light source 2', and the first micropower swashs
Radiant 2 and the second micropower laser light source 2' stop transmitting laser at once, at the same control circuit 1' export at once electric signal to
Voice unit (VU) 10, voice unit (VU) 10, which gives a warning, prompts user closely to see the mobile phone or tablet personal computer display screen,
Avoid user's eyes closely be irradiated with a laser caused injury, while also force user correct in time eye and mobile phone or
The safe distance of person's tablet personal computer display screen, holding are accomplished good to be accustomed to eye.
After tight lock part 14 is unclamped, movable clamping part 3' is removed along sliding slot 15 and loosens clamping, take out mobile phone or flat
Plate computer stirs the power supply that power switch 4 closes the present apparatus, stops using the present apparatus.
Since the eyes of user are always irradiated with a laser, the power switch portion of the being fixed locking of present apparatus bottom is touched not
Arrive, cannot power off privately, thus force user must the irradiation of timing stimulated light, therefore can psychologically generate bored laser
Irradiation, can gradually reduce using mobile phone or tablet computer and online computing or play games, and be allowed to the more time to be used in and learn
In habit or sports, rule of gradually making the life better forms good living habit, reduces eyes by mobile phone screen and plate
The injury of computer and computer screen, various aspects reduce the burden of eyes, to reach the eyesight for improving children and youth, subtract significantly
The virgin teen-age myopia ratio of juvenile, provides the good talent for the prosperity and development of motherland.
The fixed part can be set to adjustable structure, and as shown in Figure 3-Figure 5, main body 1 is fixed to solid by screw 13
Determine in portion 3, movable clamping part 3' is moved away into suitable position along sliding slot 15, mobile phone or tablet computer 23 are put into clamping
In portion 3, then movable clamping part 3' along sliding slot 15 by mobile phone or plate electricity 23 clamp, then tighten tight lock part 14, lead
Perhaps tablet computer 23 fixes to clamp and can begin to use apparatus of the present invention can be according to mobile phone or tablet computer for body 1 and mobile phone
23 size needs to carry out laterally or erects direction to fix to clamp, and working principle and application method are similar to the above,
No longer illustrate.
Shown in Fig. 6, for adjustable fixed part is applied to mobile phone or tablet computer, specific fixation procedure is no longer
It repeats.
Another fixed part embodiment is provided as shown in Figure 7 and Figure 8 for the present invention.The main body 1 is fixed to by screw 13
On clip slot 17, turns on tight lock part 14 and clip slot 17 is inserted on tablet computer or display screen 24 to suitable position, then locking
Portion 14 by tablet computer perhaps display screen 24 lock main body 1 and tablet computer or display screen 24 it is fixed after can start to make
With apparatus of the present invention, user's eyesight is protected, working principle and application method are similar to the above, no longer illustrate.
Fig. 9 is the effect picture that fixation portions is applied to tablet computer and display screen, and specific fixation procedure is no longer
It repeats.
Figure 10 and Figure 11 show fixed part another kind embodiment, and sucker 18 passes through angle adjustable interconnecting piece 18' and main body 1
It fixes, sucker 18 is pressed in tablet computer or the suitable position of display screen sucks can begin to use apparatus of the present invention, it can
The angle of interconnecting piece 18' is adjusted as needed, so that laser light source 2 and 2' and user's eyes reach best irradiating angle, this
Embodiment is suitble to by the attached suction of main body 1 in any plane, such as desktop, wall, door, vanity mirror, dressing table, bookshelf, television set
Etc. on the object for having plane, apparatus of the present invention can be used whenever and wherever possible by playing, and protect user's eyesight, this embodiment application
Extensively, working principle and application method are similar to the above, no longer illustrate.
It is as shown in Figure 12 and Figure 13 fixed part another kind embodiment, main body 1 is fixed to stationary gripping part by screw 13
On 19, movable clamping part 20 is opened up into suitable angle, then get in tablet computer or the suitable position of display screen 24 folder,
Movable clamping part 20 is unclamped again, the tension generated using spring 21 is clamped tablet computer or display screen 24, main body 1
It can begin to use apparatus of the present invention can be according to tablet computer or display after perhaps display screen 24 fixes to clamp with tablet computer
The size of screen 24 needs to carry out laterally or erects direction to fix to clamp, working principle and application method and above-mentioned class
Seemingly, it no longer illustrates.
Figure 14 show the another embodiment of fixed part, and main body 1 is fixed to angle adjustable and Liftable by screw 13
Pedestal 16 on, then apparatus of the present invention are placed on workbench, students' work platform etc. table top, are adjusted as needed to suitable
Angle and height so that laser light source 2 and 2' and user's eyes reach best irradiating angle, this embodiment be suitble to school,
It is used on the desktop of office, Classroom etc. or on workbench, and playing can use the present invention to fill whenever and wherever possible
It sets, protects user's eyesight, this embodiment is widely used, and working principle and application method are similar to the above, no longer illustrate.
Vision protection device as shown in figure 15 is applied to reading stand embodiment, and main body 1 is fixed to reading stand by screw 13
On 22, then apparatus of the present invention are placed on workbench, students' work platform etc. table top, this embodiment be suitble to school, office,
It is used on the desktop of Classroom etc. or on workbench, and playing whenever and wherever possible can be using apparatus of the present invention, protection
User's eyesight, this embodiment are widely used, and working principle and application method are similar to the above, are no longer illustrated.
Vision protection device as shown in figure 16 is applied to the protective case embodiment of mobile phone or tablet computer, the portable view
It tries hard to keep protection unit, main body 1 is directly bonded on mobile phone perhaps can also be with mobile phone or tablet computer on tablet computer protective sleeve 25
Protective case 25 directlys adopt integral structure design and integral type assembling, carries out laterally or erects direction as needed and mutually tie
Close, play it is convenient protect user's eyesight succinctly using apparatus of the present invention, this embodiment is widely used, and working principle and is made
It is similar to the above with method, no longer illustrate.
The main body 1 of apparatus of the present invention has many fixing means, and according to circumstances, it is also not necessary to fixed parts 3 to use main body 1
It is suitable that gummed paper or glue are directly bonded on mobile phone, tablet computer, display screen, television set, workbench, metope, mirror etc.
Position, play it is convenient protect user's eyesight succinctly using apparatus of the present invention, this embodiment is widely used, working principle and
Application method is similar to the above, no longer illustrates.
In the above-described embodiments, it is equipped with the wireless module connected to the control circuit in the main body 1, which includes
It sets bluetooth, WIFI or other radio connections and terminal setting connects, may be implemented remotely to control vision protection device work
Make, for example, when being arranged using mobile phone or computer as terminal, the installation APP program on mobile phone or computer, by straight handpiece or
APP program is configured and operates vision protection device on computer, and can acquire data and real time monitoring behaviour in service,
Working principle and application method are similar to the above, no longer illustrate.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features, and these are modified or replace
It changes, and also departs from the spirit and scope of the technical scheme of various embodiments of the present invention the essence of corresponding technical solution.
Claims (10)
1. portable visual acuity protective device connect the fixed part for stationary body including main body and with main body, sets in the main body
There are the micropower laser light source of irradiation eyes and the control circuit of periodically control micropower laser light source work.
2. portable visual acuity protective device according to claim 1, it is characterised in that: the micropower laser light source includes
The red laser that about 650 nanometers of at least one wavelength, the red laser spot diameter are greater than 5mm.
3. portable visual acuity protective device according to claim 2, it is characterised in that: the micropower laser light source power
Less than 5 milliwatts.
4. portable visual acuity protective device according to claim 1, it is characterised in that: the fixed part includes fixed clamp
Component, movable clamping part part and making keep the elastomeric element clamped between fixed clamp member and movable clamping part part, and make
The shaft of fixed clamp member and the rotation of movable clamping part part.
5. portable visual acuity protective device according to claim 1, it is characterised in that: be equipped in the main body and control electricity
The battery and connect to the control circuit the charging interface for battery charging that road and micropower laser light source are electrically connected.
6. portable visual acuity protective device according to claim 1, it is characterised in that: the main body is equipped with and control electricity
Road connection controls the selection control switch of micropower laser light source duty cycle and connects to the control circuit control micropower laser
The selection control switch of light source working length of time.
7. portable visual acuity protective device according to claim 1, it is characterised in that: be equipped in the main body and control electricity
Road signal connects wireless module, and remote control operation is arranged by being equipped with APP software terminal.
8. portable visual acuity protective device according to claim 1, it is characterised in that: the fixed part includes and display screen
It is bonded fixed sucker or gummed paper.
9. portable visual acuity protective device according to claim 1, it is characterised in that: the vision protection device further includes
The distance detection unit connecting with control circuit signal is preset when distance detection unit senses that eye distance laser light source is less than
When value, distance detection unit trigger control circuit control micropower laser light source stops working.
10. portable visual acuity protective device according to claim 9, it is characterised in that: the vision protection device also wraps
The prompt unit connected to the control circuit is included, when distance detection unit senses that eye distance laser light source is less than preset value,
Distance detection unit trigger control circuit controls prompt unit output prompt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910014530.4A CN109847193A (en) | 2019-01-08 | 2019-01-08 | Portable visual acuity protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910014530.4A CN109847193A (en) | 2019-01-08 | 2019-01-08 | Portable visual acuity protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109847193A true CN109847193A (en) | 2019-06-07 |
Family
ID=66894048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910014530.4A Pending CN109847193A (en) | 2019-01-08 | 2019-01-08 | Portable visual acuity protective device |
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| Country | Link |
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| CN (1) | CN109847193A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233922A (en) * | 2019-07-10 | 2019-09-13 | 深圳不虚科技有限公司 | Eyeshield holder |
| CN111929897A (en) * | 2020-07-24 | 2020-11-13 | 光朗(海南)生物科技有限责任公司 | VR equipment for ciliary muscle exercise |
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| CN204592788U (en) * | 2015-04-14 | 2015-08-26 | 黄汉森 | A kind of new clamp clamping mobile phone, panel computer |
| CN105321303A (en) * | 2014-08-04 | 2016-02-10 | 卢锦欣 | Book holder for eyesight protection |
| CN205121413U (en) * | 2015-05-14 | 2016-03-30 | 杨伟煜 | Cell -phone or dull and stereotyped anchor clamps |
| CN106657479A (en) * | 2017-02-07 | 2017-05-10 | 苏州宣嘉光电科技有限公司 | Smartphone vision care device and vision care method thereof |
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| CN202838634U (en) * | 2012-10-22 | 2013-03-27 | 浙江理工大学 | Eyesight protective device |
| CN204062348U (en) * | 2014-08-04 | 2014-12-31 | 陈玺 | A kind of support for mobile phone, panel computer |
| CN105321303A (en) * | 2014-08-04 | 2016-02-10 | 卢锦欣 | Book holder for eyesight protection |
| CN204592788U (en) * | 2015-04-14 | 2015-08-26 | 黄汉森 | A kind of new clamp clamping mobile phone, panel computer |
| CN205121413U (en) * | 2015-05-14 | 2016-03-30 | 杨伟煜 | Cell -phone or dull and stereotyped anchor clamps |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111929897A (en) * | 2020-07-24 | 2020-11-13 | 光朗(海南)生物科技有限责任公司 | VR equipment for ciliary muscle exercise |
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Application publication date: 20190607 |