CN106264441A - A kind of novel myopia degree tester and application process - Google Patents
A kind of novel myopia degree tester and application process Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient
- A61B3/028—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters
- A61B3/0285—Phoropters
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient
- A61B3/028—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters
- A61B3/032—Devices for presenting test symbols or characters, e.g. test chart projectors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient
- A61B3/028—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters
- A61B3/04—Trial frames; Sets of lenses for use therewith
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H5/00—Exercisers for the eyes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/12—Driving means
- A61H2201/1207—Driving means with electric or magnetic drive
- A61H2201/123—Linear drive
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/16—Physical interface with patient
- A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
- A61H2201/1604—Head
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/16—Physical interface with patient
- A61H2201/1657—Movement of interface, i.e. force application means
- A61H2201/168—Movement of interface, i.e. force application means not moving
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Abstract
The present invention relates to protection device and application process technical field, more specifically, relate to a kind of novel myopia degree tester, what described tester included that order installs can shading or the controlled eclipser of printing opacity, binocular eyepiece, imaging lens group, display screen, described imaging lens group is provided with the mobile device for moving imaging lens group, described tester also includes that electronic control module, described electronic control module all electrically connect with controlled eclipser, display screen and mobile device；Described tester also includes according to the signal of interactive device and the comparative result of display screen signal, imaging lens group being moved control according to observed icon the interactive device that sends signal, described electronic control module for user.The setting of the present invention, avoid manually not stopping to change eyeglass and optometrist does not stop to inquire client to change sighting target image, improve the efficiency of test, reduce the labor intensity of optometrist, avoid the occurrence of eyeglass lens power to occur with the unmatched situation of eyesight status, improve test effect, reduce the risk accelerating myopia, it is achieved that test the purpose of myopia degree quick, intelligently.
Description
Technical field
The present invention relates to protection device and application process technical field, survey more particularly, to a kind of novel myopia degree
Examination instrument and application process.
Background technology
The visual problems that myopia, hypermetropia, pseudomyopia, stravismus and amblyopia Deng Shi China resident are common, 2012 according to statistics
In more than 5 years old total population of China, myopia and the number of patients about 500,000,000 of hypermetropia, wherein total number of patients of myopia is left 4.5 hundred million
Right.
In order to wear suitable glasses, it is necessary to carry out the test of myopia degree.Many optician's shops are designed with myopia now
Number of degrees tester, but these testers need manually not stop to change eyeglass, adjust the number of degrees to see；Also need to user with
Interaction is not stopped, in order to optometrist changes sighting target image between optometrist；These processes cause the overlong time that myopia degree detects,
Inefficiency, and the labor intensity of optometrist is excessive, easily occurs that eyeglass lens power occurs with the unmatched situation of eyesight status, shadow
Ring test effect, improve the risk accelerating myopia.The most how to design the instrument that can test myopia degree quick, intelligently
And the problem that using method is intended to solve.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of novel myopia degree tester, it is to avoid people
Work does not stop to change eyeglass and optometrist does not stop to inquire client to change sighting target image, and improve the efficiency of test, minimizing is tested
The labor intensity of light teacher, it is to avoid occur that eyeglass lens power occurs with the unmatched situation of eyesight status, improves test effect, reduces
Accelerate the risk of myopia, it is achieved that test the purpose of myopia degree quick, intelligently.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
Thering is provided a kind of novel myopia degree tester, what described tester included that order installs can shading or printing opacity controlled
Eclipser, binocular eyepiece, imaging lens group, display screen, described imaging lens group is provided with for moving imaging lens group
Mobile device, described tester also includes electronic control module, described electronic control module all with controlled eclipser, display screen
And mobile device electrical connection；Described tester also includes for user according to observed icon the interactive device that sends signal, institute
State electronic control module imaging lens group to be moved with the comparative result of display screen signal according to the signal of interactive device
Control.
User utilizes controlled eclipser that eyes carry out shading or printing opacity, and the eyes of printing opacity side are observed by binocular eyepiece
The screen picture shown on the display screen after imaging lens group imaging, utilizes interactive device instruction to observe image, electronics
Control module controls controlled eclipser, display screen and moving structure as required, it is achieved optometry and eye care.
A kind of novel myopia degree tester of the present invention is provided with the controlled eclipser that eyes carry out shading or printing opacity, its
Electrically connect with electronic control module, can the controlled eclipser of Based Intelligent Control.Due to described electronic control module and controlled eclipser, show
Display screen curtain, moving structure all electrically connect so that electronic control module can control controlled eclipser, display screen the most intelligently
Curtain, moving structure, be changed as required, thus avoid manually not stopping changing eyeglass and optometrist do not stop to inquire client with
Just change sighting target image, improve the efficiency of test, reduce the labor intensity of optometrist, it is to avoid eyeglass lens power and vision shape occur
The unmatched situation of condition occurs, and improves test effect, reduces the risk accelerating myopia, it is achieved that test myopia quick, intelligently
The purpose of the number of degrees.And this apparatus structure is simple, easy to use, and low cost.
One of improving, described binocular eyepiece can be the eyepiece that some focal lengths are different, and described moving structure is motor.Described double
Mesh eyepiece can be the setting of the different eyepiece of some focal lengths, is owing to meeting the training area of ocular muscles, needs simulation
Myopia and hyperopia degree scope are relatively big, and the vision of different user has significant diversity, a kind of fixing imaging lens group
Collocation with eyepiece, it is difficult to meet the demand of all users, therefore, can by eyepiece according to the vision distributions without user,
Make the eyepiece of several focal length, allow each contain the user group of certain vision state range, to ensure that every kind of groups is at eye
Training area under health care state.It addition, described moving structure is the setting of motor, it is the length in order to limit light path, quickly
Realize the compact design of optometry and eye care instrument, utilize motor change display screen, imaging lens group and binocular eyepiece three it
Between distance, with realize display screen display sighting target image move before and after ocular imaging picture point and the change of axle multiplying power of hanging down.
Preferably, for reducing noise when motor movement, described motor is ultrasonic motor.
Preferably, described motor be display screen described in ultrasonic motor be black-and-white crystal screen.Setting of ultrasonic motor
Put is to reduce noise.Described display screen is the setting of black-and-white crystal screen, is due to the sighting target image needs on screen
Be contracted to be equivalent to the effects of viewing outside 5 meters, and the sighting target used by optometry be essentially the character of white gravoply, with black engraved characters or pattern (as
" E " or " C "), preferably black-and-white crystal screen, it is simple to improve picture element density.
Preferably, the reflecting mirror for extending light path it is provided with between described binocular eyepiece and imaging lens group.As preferably
Scheme, for reducing the process technology demand of eyeglass each to imaging lens group (such as the radius of curvature of lens, burnt footpath ratio, refractive index
Deng), reflecting mirror can be used to extend light path so that use the lenses composition imaging lens group of simpler easily system, in order to reduce
Cost.
Preferably, described imaging lens group is provided with achromatism eyeglass.Described imaging lens group is provided with achromatism eyeglass,
It it is the chromatic dispersion problem in order to solve imaging lens group.
Preferably, described reflecting mirror includes the first reflecting mirror and the second reflecting mirror, and described imaging lens group includes two parts,
Part imaging lens group is between described display screen and the first reflecting mirror, and another part imaging lens group is positioned at described binocular
Between eyepiece and the second reflecting mirror.Described imaging lens group includes that two parts, part imaging lens group are positioned at described display screen
And between the first reflecting mirror, another part imaging lens group is between described binocular eyepiece and the second reflecting mirror, and these are arranged
It is above-mentioned to add the extended pattern light path after reflecting mirror to coordinate, utilizes secondary imaging, will inside limited optical path length
Sighting target image down shown by display screen, to the angular resolution size of sighting target needed for optometry, meets the demand of optometry.
Preferably, described instrument for training also includes the support member of the head for fixing user, described support member and binocular mesh
Mirror lays respectively at the both sides of controlled eclipser and it is in relative position, and described support member is provided with the head for detecting user
The whether induction installation on setting position.The setting of support member, is the head in order to fix user, improves comfort,
Eyes are relatively fixed with the distance of eyepiece, while reducing fatigue, solve to cause screen to show because head rocks
Sighting target image moves before and after ocular imaging picture point.Design induction installation so that instrument is able to detect that user's head simultaneously
Whether on the position set, improve training and the effect of test.Preferably, described support member is the jaw for holding lower jaw
Torr.The setting of jaw torr is to be user-friendly to, and disposes a jaw torr in eye care instrument for training front, places lower jaw for user.Excellent
Selection of land, induction installation is sense of touch and light sensing switch, is so easy to quickly sense, and cost is relatively low.
Preferably, described interactive device is handle or rocking bar or button.Quickly interactive to record institute for the ease of user
Whether the sighting target direction seen, reach, with this interpretation user, the vision level that sighting target is corresponding, and described interactive device is handle or shakes
Bar or button.
Preferably, controlled eclipser it also is provided with between described binocular eyepiece and imaging lens group.
Preferably, described controlled eclipser is liquid crystal cell or shutter or roller shutter.It addition, controlled eclipser preferable one solely
The liquid crystal cell of vertical unit, by executing alive change, can realize quickly changing logical light, shading and center line fracture state.
Preferably, described electronic control module is provided with communication module, and available bluetooth, wifi, NFC, cable network etc. will
Refraction data reaches high in the clouds and analyzes the vision variable condition of user for doctor.
Preferably, for improving the contrast of viewing sighting target image, can be by the inside processing delustring stricture of vagina of optometry with eye care instrument
Or coating frosted is pitch-dark.
The present invention also provides for the application process of a kind of novel myopia degree tester, the concrete steps of described application process
For:
A. user utilizes controlled eclipser that eyes are carried out shading or printing opacity；
B. display screen random sequence display vision is the sighting target image of 5.0；
C. the eyes of printing opacity side observe sighting target image image after imaging lens group imaging by binocular eyepiece；
D. optometry and eye care person are by sighting target image observed by interactive device signal optometry and eye care person；
E. tester is made according to the signal icon of interactive device and being judged with or without the information seen clearly, sends signal；
If f. tester receives signal is " not seeing ", electronic control module controls mobile device and moves, and makes imaging saturating
Mirror group constantly changes position, and simulation constantly adjusts the effect of the eyeglass number of degrees, until user sees；
If g. tester receives signal is " seeing clearly ", electronic control module record is the most correct；And with size
Sighting target image occurs repeatedly and direction is random, and described sighting target image is continued the rate of being accurate in one's observation and is higher than certain ratio, then by user
The vision level that level is user of sighting target image now, the number of degrees of imaging lens group are the number of degrees of the eyes of printing opacity side；
If described sighting target image is continued the rate of being accurate in one's observation by user is less than certain ratio, then tester receives signal for " to see not
Clearly ", step f is continued executing with；
H. above-mentioned steps achieves the detection of the side hypometropia number of degrees；Then the shading to eyes of the controlled eclipser is converted
With printing opacity, complete the detection of the myopia degree of both sides eyes.
Following optometry step is also included after completing myopia degree test:
I. user utilizes controlled eclipser that eyes are carried out shading or printing opacity；
J. display screen random sequence display vision is the sighting target image of twenty-twenty vision；
K. the controlled eclipser state of electronic control module control shading side eyes switches to center line crack light transmission state；
L. user watches observation sighting target image figure after imaging lens group imaging at controlled eclipser center line crack
Picture；By sighting target image observed by interactive device signal optometry and eye care person；
It is slowly rotating the center line fissure direction of controlled eclipser the most clockwise or counterclockwise；
If after n. user's rotation center line crack is more than A angle, user is by interactive device signal optometry and eye care person
Observed sighting target image, according to input signal, electronic control module judges that the definition of twice observation is consistent with fuzziness,
Electronic control module judges that the astigmatism of eyes of user less than certain number of degrees or does not has astigmatism；If user is illustrated by interactive device
After sighting target image observed by optometry and eye care person, electronic control module judges the direction in certain center line crack according to input signal
Lower sighting target definition is higher than other direction, then electronic control module judges that the direction in center line crack is astigmatism direction, and records
The best vision of eyes of user, then rotation center line fissure direction B angle, electronic control module records eyes of user again
Best vision, the astigmatism degree that vision difference is eyes of user of two center line fissure directions；
O. above-mentioned steps achieves the detection of side eyes astigmatism degree；Then convert controlled eclipser state, complete two
The astigmatism test of branch hole eyeball.
Preferably, described A angle is 360 degree, and B angle is 90 degree.
Compared with prior art, the invention has the beneficial effects as follows:
A kind of novel myopia degree tester of the present invention and application process, be provided with eyes are carried out shading or printing opacity can
Controlling eclipser, it electrically connects with electronic control module, can the controlled eclipser of Based Intelligent Control.Due to described electronic control module with can
Control eclipser, display screen, moving structure all electrically connect so that electronic control module can control controlled screening the most intelligently
Optical screen, display screen, moving structure, be changed as required, thus avoids manually not stopping changing eyeglass and optometrist not
Stopping inquiring client to change sighting target image, improve the efficiency of test, reduce the labor intensity of optometrist, it is to avoid glasses occur
The number of degrees occur with the unmatched situation of eyesight status, improve test effect, reduce the risk accelerating myopia, it is achieved that quickly intelligence
The purpose of energy ground test myopia degree.And this apparatus structure is simple, easy to use, and low cost.
Accompanying drawing explanation
Fig. 1 is the structural representation not adding reflecting mirror of the novel optometry of embodiment 1 and eye care instrument for training.
Fig. 2 is the structural representation after the addition reflecting mirror of the novel optometry of embodiment 1 and eye care instrument for training.
Fig. 3 is the structural representation after the addition reflecting mirror of embodiment 2 type optometry and eye care instrument for training.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is further illustrated.Wherein, being merely cited for property of accompanying drawing illustrates,
Represent is only schematic diagram, rather than pictorial diagram, it is impossible to it is interpreted as the restriction to this patent；In order to the reality of the present invention is better described
Executing example, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product；To those skilled in the art
For, in accompanying drawing, some known features and explanation thereof may be omitted and be will be understood by.
The corresponding same or analogous parts of same or analogous label in the accompanying drawing of the embodiment of the present invention；Retouching in the present invention
In stating, it is to be understood that if having term " on ", D score, the orientation of the instruction such as "left", "right" or position relationship be for based on accompanying drawing
Shown orientation or position relationship, be for only for ease of the description present invention and simplify description rather than instruction or imply indication
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore position relationship described in accompanying drawing
Term being merely cited for property explanation, it is impossible to be interpreted as the restriction to this patent, for the ordinary skill in the art, can
To understand the concrete meaning of above-mentioned term as the case may be.
Embodiment 1
As Fig. 1 to 2 show a kind of novel myopia degree tester of the present invention and the first embodiment of application process, described
Tester include order install can shading or the controlled eclipser 1 of printing opacity, binocular eyepiece 2, imaging lens group 4, display screen
3, described imaging lens group 4 is provided with the mobile device 6 for moving imaging lens group 4, and described tester also includes electronics control
Molding block 5, described electronic control module 5 all electrically connects with controlled eclipser 1, display screen 3 and mobile device 6；Described test
Instrument also includes filling according to interaction according to observed icon the interactive device that sends signal, described electronic control module 5 for user
The signal put moves control with the comparative result of display screen signal to imaging lens group 4.
Specifically, described binocular eyepiece 2 can be the eyepiece that some focal lengths are different, and described moving structure 6 is motor.Described double
Mesh eyepiece 2 can be the setting of the different eyepiece of some focal lengths, is owing to meeting the training area of ocular muscles, needs simulation
Myopia and hyperopia degree scope are relatively big, and the vision of different user has significant diversity, a kind of fixing imaging lens group 4
Collocation with binocular eyepiece 2, it is difficult to meet the demand of all users, therefore, can be by eyepiece according to the vision state without user
Distribution, makes the eyepiece of several focal length, allows each contain the user group of certain vision state range, to ensure every kind of groups
Training area under eye care state.It addition, described moving structure 6 is the setting of motor, it is the length in order to limit light path,
Quickly realize the compact design of optometry and eye care instrument, utilize motor to change display screen 3, imaging lens group 4 and binocular eyepiece 2
Distance between three, shows that sighting target image moves and hang down axle multiplying power before and after ocular imaging picture point realizing display screen 3
Change.Furthermore it is preferred that for reducing noise when motor movement, described motor is ultrasonic motor.
Wherein, described imaging lens group 4 is provided with achromatism eyeglass.Described imaging lens group 4 is provided with achromatism eyeglass,
It it is the chromatic dispersion problem in order to solve imaging lens group 4.
It addition, be provided with the reflecting mirror 7 for extending light path between binocular eyepiece 2 and imaging lens group 4.
Wherein, instrument for training also includes the support member 8 of the head for fixing user, support member 8 and binocular eyepiece 2 position respectively
In the both sides of controlled eclipser 1 and its be in relative position, whether described support member 8 is provided with the head for detecting user and exists
Induction installation on setting position.The setting of support member 8, is the head in order to fix user, improves comfort so that double
Eye is relatively fixed with the distance of binocular eyepiece 2, while reducing fatigue, solves to cause screen to show because head rocks and regards
Logo image moves before and after ocular imaging picture point.Design induction installation so that instrument is able to detect that user's head is simultaneously
No on the position set, improve training and the effect of test.Preferably, induction installation is sense of touch and light sensing switch, so
It is easy to quickly sense, and cost is relatively low.
Wherein, in the present embodiment, support member 8 is the jaw torr for holding lower jaw, and display screen 3 is black-and-white crystal screen.
The setting of jaw torr is to be user-friendly to, and disposes a jaw torr in eye care instrument for training front, places lower jaw for user.Display screen
Curtain 3 is the setting of black-and-white crystal screen, is owing to the sighting target image on screen needs to be contracted to be equivalent to the effect of viewing outside 5 meters
Really, and the sighting target used by optometry is essentially character or the pattern (such as " E " or " C ") of white gravoply, with black engraved characters, preferably black-and-white crystal screen,
It is easy to improve picture element density.
It addition, interactive device is handle or rocking bar or button.Quickly interactive so that what record was seen for the ease of user
Whether sighting target direction, reach, with this interpretation user, the vision level that sighting target is corresponding, described interactive device be handle or rocking bar or by
Button.
Wherein, controlled eclipser 1 is liquid crystal cell or shutter or roller shutter.In the present embodiment, preferable one of controlled eclipser 1
The liquid crystal cell of separate unit, by executing alive change, can realize quickly changing logical light, shading and center line fracture state.
It addition, the present invention also provides for the application process of a kind of novel myopia degree tester,
A. user utilizes controlled eclipser 1 that eyes are carried out shading or printing opacity；
B. display screen 3 random sequence display vision is the sighting target image of 5.0；
C. the eyes of printing opacity side observe sighting target image image after imaging lens group 4 imaging by binocular eyepiece 2；
D. optometry and eye care person are by sighting target image observed by interactive device signal optometry and eye care person；
E. tester is made according to the signal icon of interactive device and being judged with or without the information seen clearly, sends signal；
If f. tester receives signal is " not seeing ", electronic control module 5 controls mobile device 6 and moves, and makes imaging
Battery of lens 4 constantly changes position, and simulation constantly adjusts the effect of the eyeglass number of degrees, until user sees；
If g. tester receives signal is " seeing clearly ", electronic control module 5 records the most correct；And with size
Sighting target image occurs repeatedly and direction is random, and described sighting target image is continued the rate of being accurate in one's observation and is higher than certain ratio, then by user
The vision level that level is user of sighting target image now, the number of degrees of imaging lens group 4 are the number of degrees of the eyes of printing opacity side；
If described sighting target image is continued the rate of being accurate in one's observation by user is less than certain ratio, then tester receives signal for " to see not
Clearly ", step f is continued executing with；
H. above-mentioned steps achieves the detection of the side hypometropia number of degrees；Then the screening to eyes of the controlled eclipser 1 is converted
Light and printing opacity, complete the detection of the myopia degree of both sides eyes.
Following optometry step is also included after completing myopia degree test:
I. user utilizes controlled eclipser 1 that eyes are carried out shading or printing opacity；
J. display screen 3 random sequence display vision is the sighting target image of twenty-twenty vision；
K. electronic control module 5 controls controlled eclipser 1 state of shading side eyes and switches to center line crack printing opacity shape
State；
L. user watches observation sighting target image at controlled eclipser 1 center line crack after imaging lens group 4 imaging
Image；By sighting target image observed by interactive device signal optometry and eye care person；
It is slowly rotating the center line fissure direction of controlled eclipser 1 the most clockwise or counterclockwise；
If after n. user's rotation center line crack is more than A angle, user is by interactive device signal optometry and eye care person
Observed sighting target image, according to input signal, electronic control module 5 judges that the definition of twice observation is consistent with fuzziness,
Electronic control module 5 judges that the astigmatism of eyes of user less than certain number of degrees or does not has astigmatism；If user is shown by interactive device
After sighting target image observed by meaning optometry and eye care person, electronic control module 5 judges certain center line crack according to input signal
Under direction, sighting target definition is higher than other direction, then electronic control module 5 judges that the direction in center line crack is astigmatism direction, and note
The best vision of the lower eyes of user of record, then rotation center line fissure direction B angle, electronic control module 5 records user again
The best vision of eyes, the astigmatism degree that vision difference is eyes of user of two center line fissure directions；
O. above-mentioned steps achieves the detection of side eyes astigmatism degree；Then convert controlled eclipser 1 state, complete two
The astigmatism test of branch hole eyeball.
Wherein, described A angle is 360 degree, and B angle is 90 degree.
Detailed step is as follows:
Myopia degree examination state:
Lower jaw is put in jaw torr by user, and eyes are near the front of optometry Yu eye care instrument binocular eyepiece 2, and in jaw torr
Support the preferable steady statue of lower maintenance.Now, imaging lens group 4 will be moved to for normal visual acuity person (with vision 5.0 for mark
Accurate) for, for the position of zero diopter state.
Now, first allow controlled eclipser 1 printing opacity that left eye is corresponding, controlled eclipser 1 shading that right eye is corresponding, check left eye
Vision.Display screen 3 random sequence display vision is the sighting target image of 5.0, after user sees sighting target, regards according to whether can see clearly
It is marked on interactive device and operates.If user can see sighting target, on interactive device, just directly input (opening of sighting target
Mouthful) direction (as by corresponding button, or rocking bar, handle being flapped toward fixed-direction etc.)；If user's input error number reaches certain
Probability, eye refractometer judges user " fail to see clearly ".
As eye refractometer judge user as " failing to see clearly ", then imaging lens group 4 changes position, and simulation increases eyeglass degree
The effect of number, allows spectators again watch sighting target.This process will repeat, and be continuously increased the number of degrees, until the positive exact figures of user's input reach
To the ratio passed through, these number of degrees are the number of degrees of left vision.
When user inputs sighting target direction, the direction that interpretation user is inputted by electronic control module and the actual side of sighting target
To, if both direction is consistent, then record is correct once.Will appear from for several times (direction is random) with the sighting target of size, and add up use
The family accuracy to sighting target interpretation, if accuracy is higher than certain proportion, it will be considered that user's vision reaches the level that sighting target is corresponding.
Otherwise, then it is assumed that it is target correspondence level that vision fails arrival, is considered as " failing to see clearly ", will enter above-mentioned " failing to see clearly " stream
Journey works.
The state of the controlled eclipser that exchange images of left and right eyes is corresponding, checks right vision.
Embodiment 2
It is illustrated in figure 3 the present invention based on light beam orbit angular momentum demodulating equipment and the second embodiment of application process thereof,
The present embodiment is similar with embodiment one, and institute's difference is, described tester includes the first reflecting mirror 71 and the second reflecting mirror
72, imaging lens group 4 includes two parts, part imaging lens group 4 between described display screen 3 and the first reflecting mirror 71,
Another part imaging lens group 4 is between described binocular eyepiece 2 and the second reflecting mirror 72.Imaging lens group 4 includes two parts,
Part imaging lens group 4 is between described display screen 3 and the first reflecting mirror 71, and another part imaging lens group 4 is positioned at institute
Stating between binocular eyepiece 2 and the second reflecting mirror 72, these are disposed to the extended pattern light after coordinating above-mentioned addition reflecting mirror
Road, utilizes secondary imaging, by needed for the sighting target image down shown by display screen 3 to optometry inside limited optical path length
The angular resolution size of sighting target, meets the demand of optometry.
Embodiment 3
As Fig. 1 to 2 show the present invention based on light beam orbit angular momentum demodulating equipment and the 3rd enforcement of application process thereof
Example, the present embodiment is similar with embodiment one, and institute's difference is, being provided with second between binocular eyepiece 2 and imaging lens group 4 can
Control eclipser 1.
Obviously, the above embodiment of the present invention is only for clearly demonstrating example of the present invention, and is not right
The restriction of embodiments of the present invention.For those of ordinary skill in the field, the most also may be used
To make other changes in different forms.Here without also cannot all of embodiment be given exhaustive.All at this
Any amendment, equivalent and the improvement etc. made within the spirit of invention and principle, should be included in the claims in the present invention
Protection domain within.
Claims (10)
1. a novel myopia degree tester, it is characterised in that described tester include order install can shading or printing opacity
Controlled eclipser (1), binocular eyepiece (2), imaging lens group (4), display screen (3), described imaging lens group (4) is provided with
For moving the mobile device (6) of imaging lens group (4), described tester also includes electronic control module (5), described electronics control
Molding block (5) all electrically connects with controlled eclipser (1), display screen (3), mobile device (6)；Described tester also include for
Family according to observed icon the interactive device that sends signal, described electronic control module (5) according to the signal of interactive device with
The comparative result of display screen signal moves control to imaging lens group (4).
The most novel myopia degree tester, it is characterised in that described binocular eyepiece (2) can be some
The eyepiece that focal length is different, described moving structure (6) is motor.
The most novel myopia degree tester, it is characterised in that described motor is ultrasonic motor, institute
Stating display screen (3) is black-and-white crystal screen.
Novel myopia degree tester the most according to claim 1, it is characterised in that described binocular eyepiece (2) and imaging
The reflecting mirror (7) for extending light path it is provided with between battery of lens (4).
Novel myopia degree tester the most according to claim 1, it is characterised in that described tester includes the first reflection
Mirror (71) and the second reflecting mirror (72), it is described that described imaging lens group (4) includes that two parts, part imaging lens group (4) are positioned at
Between display screen (3) and the first reflecting mirror (71), it is anti-with second that another part imaging lens group is positioned at described binocular eyepiece (2)
Penetrate between mirror (72)；Utilize twice imaging, imaging lens group (4) by the sighting target image down shown by display screen (3) to testing
The resolution size of sighting target needed for light.
Novel myopia degree tester the most according to claim 1, it is characterised in that described tester also includes for solid
Determining the support member (8) of the head of user, described support member (8) and binocular eyepiece (2) lay respectively at the both sides of controlled eclipser (1)
And it is in relative position, described support member (8) is provided with the sensing whether on setting position of the head for detecting user
Device.
Novel myopia degree tester the most according to claim 1, it is characterised in that described binocular eyepiece (2) and imaging
Also being provided with controlled eclipser (1) between battery of lens (4), described controlled eclipser (1) is liquid crystal cell or shutter or roller shutter.
8. the application process according to myopia degree tester novel described in any one of claim 1 to 7, it is characterised in that
Concretely comprising the following steps of described application process:
A. by controlled eclipser (1), eyes are carried out shading or printing opacity action；
B. display screen (3) random sequence display vision is the sighting target image of a standard degrees；
C. the eyes of printing opacity side observe sighting target image image after imaging lens group (4) imaging by binocular eyepiece (2)；
D. user by interactive device illustrate observed by sighting target image；
E. tester is made according to the signal icon of interactive device and being judged with or without the information seen clearly, sends signal；
If f. tester receives signal is " not seeing ", it is mobile that electronic control module (5) controls mobile device (6), makes imaging
Battery of lens (4) constantly changes position, and simulation constantly adjusts the effect of the eyeglass number of degrees, until user sees；
If g. tester receives signal is " seeing clearly ", electronic control module (5) record is the most correct；And regarding with size
Logo image occurs repeatedly and direction is random, and described sighting target image is continued the rate of being accurate in one's observation higher than certain ratio by user, then this
Time the vision level that level is user of sighting target image, the number of degrees of the eyes that the number of degrees are printing opacity side of imaging lens group (4)；
If described sighting target image is continued the rate of being accurate in one's observation by user is less than certain ratio, then tester receives signal for " to see not
Clearly ", step f is continued executing with；
H. above-mentioned steps achieves the detection of the side hypometropia number of degrees；Then the controlled eclipser (1) shading to eyes is converted
With printing opacity, complete the detection of the myopia degree of both sides eyes.
The application process of novel myopia degree tester the most according to claim 8, it is characterised in that complete myopia degree
Count and after testing, also include following optometry step:
I. user utilizes controlled eclipser (1) that eyes are carried out shading or printing opacity；
J. display screen (3) random sequence display vision is the sighting target image of twenty-twenty vision；
K. controlled eclipser (1) state of electronic control module (5) control shading side eyes switches to center line crack printing opacity shape
State；
L. user watches observation sighting target image at controlled eclipser (1) center line crack after imaging lens group (4) imaging
Image；By sighting target image observed by interactive device signal optometry and eye care person；
It is slowly rotating the center line fissure direction of controlled eclipser (1) the most clockwise or counterclockwise；
If after n. user's rotation center line crack is more than A angle, user is by the observed sighting target image of interactive device signal, electronics
According to input signal, control module (5) judges that the definition of twice observation is consistent with fuzziness, electronic control module (5) is sentenced
The astigmatism of disconnected eyes of user less than certain number of degrees or does not has astigmatism；If user is by the observed sighting target image of interactive device signal
After, electronic control module (5) judges that according to input signal under the direction in certain center line crack, sighting target definition is higher than other direction,
Then electronic control module (5) judges that the direction in center line crack is astigmatism direction, and records the best vision of eyes of user, then
Rotation center line fissure direction B angle, electronic control module (5) records the best vision of eyes of user again, and two center lines split
The astigmatism degree that vision difference is eyes of user in gap direction；
O. above-mentioned steps achieves the detection of side eyes astigmatism degree；Then convert controlled eclipser (1) state, complete both sides
The astigmatism test of eyes.
The application process of novel myopia degree tester the most according to claim 9, it is characterised in that described A angle is
360 degree, B angle is 90 degree.
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