CN108324239A - Portable intelligent optometry unit - Google Patents
Portable intelligent optometry unit Download PDFInfo
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- CN108324239A CN108324239A CN201810116578.1A CN201810116578A CN108324239A CN 108324239 A CN108324239 A CN 108324239A CN 201810116578 A CN201810116578 A CN 201810116578A CN 108324239 A CN108324239 A CN 108324239A
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- 230000004438 eyesight Effects 0.000 claims abstract description 53
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- 238000012545 processing Methods 0.000 claims abstract description 41
- 238000005259 measurement Methods 0.000 claims description 79
- 230000007246 mechanism Effects 0.000 claims description 17
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- 208000001491 myopia Diseases 0.000 abstract description 22
- 230000004379 myopia Effects 0.000 abstract description 17
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- 201000010041 presbyopia Diseases 0.000 description 2
- 208000014733 refractive error Diseases 0.000 description 2
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Classifications
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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
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/103—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
-
- 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
- A61B3/0016—Operational features thereof
- A61B3/0041—Operational features thereof characterised by display arrangements
-
- 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
- A61B3/0083—Apparatus for testing the eyes; Instruments for examining the eyes provided with means for patient positioning
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Ophthalmology & Optometry (AREA)
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- Heart & Thoracic Surgery (AREA)
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Abstract
The invention discloses a kind of portable intelligent optometry units, including shell, it is provided in shell for showing the intelligent terminal for measuring pattern and loosening pattern, for changing the mechanical adjustment component for measuring the optical lens module of optical path between pattern and human eye, relative distance and position for changing optical lens module in equipment and for the signal processing component to measured value progress analyzing processing;The signal output end of the input terminal connection mechanical adjustment component of the signal processing component, the controlled end of the output end connection intelligent terminal of signal processing component;The control terminal of the mechanical adjustment component is fixedly connected with the device in optical lens module.The present invention can whenever and wherever possible measure the diopter of eyes and eyesight by simple operations, the variation tendency of all measured values in certain period of time can be also shown by the display screen of intelligent terminal, facilitate measured to assess and predict own eyesight situation, good result is played to the prevention of juvenile shortsightedness.
Description
Technical field
The present invention relates to optical devices technologies field, especially a kind of optometry units for detecting human eyesight state.
Background technology
The vision system of human eye is made of cornea, aqueous humor, crystalline lens, vitreum, retina and optic nerve etc..Into eyes
Light through eyes dioptric system refraction after focus on retina, after the cellula visualis on retina experiences light, will regard
Feel that information is transmitted to visual cortex, forms vision after processing.The axiallength of normal eye is about 24mm, and refractive power is about
60D, wherein cornea account for 75% or so of full refraction of eye degree, are most important dioptric parts.Crystalline lens itself has elasticity, can
Under the traction action of ciliary muscle and suspensorium, changes surface curvature, change its refractive power, realize the adjusting work(of human eye vision
Can, reach and clearly regards object.Under normal condition, when crystalline lens loosens completely, the directional light that unlimited distance comes is just in view
It is focused at film, eyes in this case are emmetropia.When eyes are completely in relaxation state, the refractive power of eyes is called eye
In the static refraction power of eyeball, but in daily life, such as fine work and study, object in the position closer apart from eyes,
The diverging light that object is sent out can focus on behind retina, need eyes to change its refractive status and be presented on the picture of object and regard
On nethike embrane, this human eye is called the adjusting of eyes, the shape by changing the phenomenon that refractive power of eyes is to see near objects clearly
The refractive power of eyes is called the dynamic refraction power of eyes under state.Myopia there are static refraction ability exception is can only be by light
Before line focus to retina, and farsightedness can only be focused light rays at after retina, and the both the above defects of vision are known as ball
Surface aberration;If ophthalmic refractive system is variant in different meridianal radius of curvature, the dioptric on eyes different directions is caused
Power is different, and image can not be accurately focused to a bit, but two focal lines of formation or multifocal line, the situation are known as astigmatism, is eyes
Cylindrical aberration;Drawbacks described above is referred to as the ametropia of eyes.Also a kind of defect is known as presbyopia, Crack cause be with
The growth at age, lens ages are hardened the decrease with ciliary muscle muscular strength, and the adjustable range of eyes is made to become smaller, and occur closely regarding
The phenomenon of object difficulty is the normal physiological phenomena that human vision occurs with age growth.The myopia of eyes, long sight, astigmatism with
And the optical defects such as presbyopia can be compensated by wear corrective lens, positive lens(Convergence)For compensating long sight aberration,
Negative lens(Diverging)For compensating near-sighted aberration.
Most common vision system problem is the ametropia problem such as myopia, long sight, astigmatism in daily life.Wherein
Especially the influence with myopia to people is maximum, and with the rapid development of society, the near-sighted illness rate of people increases year by year.Its reason is related to
Ethnic group factor, inherent cause, education system, exam-oriented education factor, close eye factor, dysontogenesis factor, growth
Imbalance factor, environmental factor and unscientific control method, product and measure etc., the presence of above-mentioned composite factor causes closely
It remains high depending on incidence, especially children and youth.Currently, national governments and eye have generally been accepted closely depending on light fitness guru
Depending on prevention and control it should be emphasized that the policy puted prevention first, such as 2016, China national health and Family Planning Committee are " about adding
It is distinctly claimed emphasis early detection in the instruction of strong children and youth myopia prevention and control ", to take effective prevention measure
Prevent the generation of myopia.
Early detection refer to since the Childhood, high-density acquisition and detection with the relevant data of vision health, not only
Children can be divided into without myopia, high-risk status, near-sighted 3 groups, but also the physiology refractive power of each age group can be obtained
With the matching factor relationship of each dioptric parameter under far visual acuity and each age group refractive status, to the predicting of myopia, do
Very crucial effect will be played by preventing and treating.
The main forms of above-mentioned eyesight high-risk status are pseudo-myopias, and near-sighted generation is shown as in early stage
Pseudo-myopia is reversible change, if it is possible to find in time and take effective prevention measure, so that it may with remove pseudo-myopia and
Restore eyesight, so if the children and youth stage that can be occurred frequently in myopia, multifrequency degree monitors the refractive power variation of eyes, just
The decline of eyesight can be found early, find pseudo-myopia in time and can take effective prevention measure, it is close to reducing to restore eyesight
Generation depending on eye is significant.
However, it is time-consuming and laborious to operate with the acquisition of vision health related data and the detection of ophthalmic refractive state,
What such as carried out only by E visual charts, almost without meaning;If accurately acquired, ophthalmologic hospital or outpatient service is needed to use
The instrument of Large expensive and complicated means carry out, and professional technician is needed to carry out language friendship with measured in detection process
Mutually, human and material resources cost is all very high, and is difficult suitable for the age is relatively low or personnel with dysaudia;In addition, the detection
Means are unfavorable for the frequent check and evaluation of eyesight, it is difficult to accomplish the not positive defect of ophthalmic refractive(It is especially near-sighted)Hair early
It is existing.
Invention content
The technical problem to be solved in the invention is to provide a kind of low-cost portable intelligent optometry unit, can popularize
Into each family, people is facilitated to measure the diopter and eyesight of eyes whenever and wherever possible.
In order to solve the above technical problems, the technical solution used in the present invention is as follows.
Portable intelligent optometry unit, including be worn on the shell on head, be provided in shell for show measure pattern and
Loosen pattern intelligent terminal, for changing measure the optical lens module of optical path between pattern and human eye, for changing
The mechanical adjustment component of relative distance and position of the optical lens module in equipment and for being carried out at analysis to measured value
The signal processing component of reason;The signal output end of the input terminal connection mechanical adjustment component of the signal processing component, at signal
Manage the controlled end of the output end connection intelligent terminal of component;In the control terminal and optical lens module of the mechanical adjustment component
Device is fixedly connected.
Above-mentioned portable intelligent optometry unit, the optical lens module include being disposed in parallel in shell for measuring interpupillary distance
Lens group, the eyesight measurement lens group for measuring uncorrected visual acuity are measured with the refractive power of refractive power and for stimulating eye
Eyeball loosens or nervous attachment lens group, the shell are symmetrically arranged with along central axis and correspond to the two of measured's right and left eyes respectively
A channel, the refractive power measures lens group and eyesight measurement lens group is disposed in parallel in a channel and refractive power is surveyed
Amount lens group and eyesight measurement lens group can move left and right under the drive of mechanical adjustment component in channel, and the auxiliary is saturating
Microscope group is fixed in another channel.
Above-mentioned portable intelligent optometry unit, the refractive power measure lens group including one piece for realizing to the measurement
The first concavees lens that pattern zooms in and out, one piece for changing measuring the first convex lens of visual range between pattern and measured
And it is measured for realizing each performance parameter of eyes and the crack piece parallel with intelligent terminal screen, first concavees lens lean on
Nearly intelligent terminal setting, crack piece are arranged close to the optical line terminal of measured's eyes, and the first convex lens is set to the first concavees lens
Between the piece of crack and close to the setting of crack piece.
Above-mentioned portable intelligent optometry unit, the crack piece include that the base with incident light selection function is arranged in shell
Plate, the position that measured's eyes are corresponded on substrate offer thang-kng hole.
Above-mentioned portable intelligent optometry unit, the thang-kng hole are that two cracks disposed in parallel seams or several groups are opposite small
Hole, the spacing between adjacent crack seam or adjacent apertures is 2.5 ± 2mm.
Above-mentioned portable intelligent optometry unit, the mechanical adjustment component include for changing refractive power measure lens group and
Eyesight measurement lens group shell left and right position lateral adjustment, for changing concavees lens in channel front and back position it is vertical
Input mechanism to regulating mechanism and for from the sighting target transformation directive to intelligent terminal input measurement pattern.
Above-mentioned portable intelligent optometry unit, the eyesight measurement lens group include two pieces for reducing mobile phone screen image
Second concavees lens and one piece of second convex lens of size and visual range for changing screen picture, second concavees lens are close
Intelligent terminal is arranged, and the second convex lens is arranged close to the optical line terminal of measured's eyes.
Above-mentioned portable intelligent optometry unit is provided with one piece of third for changing visual range in the attachment lens group
Convex lens, third concavees lens are arranged close to the shell end of measured's eyes.
Above-mentioned portable intelligent optometry unit, the signal processing component include data processor, for acquiring optical lens
The encoder of component variations state and displacement and communication module for sending from measurement result to intelligent terminal;The data
The signal end of the input terminal connection encoder of processor, the controlled end of the output end connection communication module of data processor.
As a result of above technical scheme, the invention technological progress is as follows.
The present invention can whenever and wherever possible measure the performance parameter of eyes by simple operations, can also pass through intelligence
Terminal shows the variation tendency of all measured values in certain period of time, facilitate measured to itself visual condition carry out assessment and
Prediction, finds the process changed by pseudo-myopia to true myopia, by the vision system in the pseudo-myopia stage in time
It is trained in time and achievees the purpose that restore emmetropia with intervention, the generation of true myopia is avoided, to the pre- of juvenile shortsightedness
It is anti-to play good result.
It is the configuration of the present invention is simple, easy to operate, of low cost, can wide popularization and application in the home environment, realize to family
The visual development situation of all members is detected in front yard.In addition, the present invention is in use without professional technique people
Member, only needs measured that can complete to measure;And measurement accuracy can match in excellence or beauty rafractive.
Description of the drawings
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is the optical schematic diagram of crack piece of the present invention;
Fig. 3 is another structural schematic diagram of crack piece of the present invention.
Wherein:1. shell, 111. refractive powers measurement lens group, 112. eyesight measurement lens groups, 113. attachment lens groups,
12. mechanical adjustment component, 13. crack pieces, 2. intelligent terminals, 211 first measure pattern, and 212. shielding patterns, 213. loosen figure
Case, 214. second measure pattern, 3. measured's eyes.
Specific implementation mode
Below in conjunction with specific embodiment, the present invention will be described in further detail.
A kind of portable intelligent optometry unit, including it is worn on the shell on head, intelligent terminal 2, optics are provided in shell
Lens subassembly, mechanical adjustment component 12 and signal processing component;The input terminal connection mechanical adjustment component of signal processing component
Signal output end, the controlled end of the output end connection intelligent terminal of signal processing component.Wherein, intelligent terminal is measured for showing
Pattern, shielding patterns loosen pattern and test result, and optical lens module is for changing the light measured between pattern and human eye
Ways for education diameter, mechanical adjustment component is for changing relative distance of the optical lens module in equipment and position, signal processing component
For carrying out analyzing processing to measured value.
Optical lens module include the refractive power that is disposed in parallel in shell measure lens group, eyesight measurement lens group and
Attachment lens group, wherein refractive power measure the measurement that lens group is used for interpupillary distance, refractive power, and eyesight measurement lens group is for naked
The measurement of eye vision, attachment lens group be used to stimulate other one eye eyeball loosen or it is nervous.In the present invention, shell is along central shaft
Line is symmetrically arranged with two channels for corresponding to measured's right and left eyes respectively, wherein refractive power measures lens group and eyesight measurement
Lens group is disposed in parallel in a channel, and refractive power measures lens group and eyesight measurement lens group can be in mechanical adjustment
It is moved left and right in channel under the drive of component;Attachment lens group is fixed in another channel.
During testing eyes, need to convert the figure shown in intelligent terminal according to the index of Eye testing
Case, the pattern that intelligent terminal is shown have measurement pattern(Such as 211,214 in Fig. 1), shielding patterns(Such as 212 in Fig. 1), loosen
Pattern(Such as 213 in Fig. 1).The test index of eyes mainly has:Interpupillary distance, refractive power and eyesight, wherein interpupillary distance include remote again
Interpupillary distance and nearly interpupillary distance;Refractive power includes static refraction power and dynamic refraction power, namely adjusts far point and adjust the test of near point;
Eyesight is often referred to the uncorrected visual acuity of eyes;The adjustable range and the amplitude of accommodation of eyes can be obtained by the above test index.
The static refraction ability of test eye(Adjust far point)When, using portable refractometer attachment lens group and bend
Light ability measures lens group, and two eyes that measured is corresponded on intelligent terminal show the first measurement pattern and loosen figure respectively
Case;When the adjusting near point and interpupillary distance of test eye, two eyes that measured is corresponded on intelligent terminal show the first survey respectively
Spirogram case and shielding patterns.
It measures and is arranged in pattern there are two opposite sighting target, the one eye eyeball for testing measured;Loosen pattern simulation
Unlimited distance is for making another eyes be in relaxation state;Shielding patterns are then used for the state that simulation eye is blocked.It is surveying
During examination, the light for measuring pattern enters measured's eyes after optical lens module deviation, in the view of measured's eyes
Film bottom is imaged, and the result of imaging is related with the health status of eyes.
Black and white or colour may be used in the display screen of intelligent terminal, and the intelligence with colorful display screen is selected in the present invention
It can terminal.It can also be natural views that loosen pattern, which can be geometric figure, can be still image can also be dynamic image,
Loosen preferred colored, with depth of field feature the static natural views of pattern in the present invention;Shielding patterns are ater background;The
One measure pattern be black background in two sighting targets being oppositely arranged, the present invention in sighting target preferably two red green items.
In the present invention, if the light that face is tested the measurement pattern of eyes is mould after optical lens module deviation
Unlimited distance is intended and has penetrated the light come, after which enters eyes, after the optical system of eyes before and after retina or its
A point can be focused into.When crystalline lens loosens completely, unlimited distance enters incoming directional light and is focused at retina just,
Eyes in this case are emmetropia;And it is then before focusing light rays at retina for myopia;Farsightedness is to gather light
After coke to retina.
When measuring the static refraction ability of eyes, the ciliary muscle of eyes can be made to loosen completely, controlling the adjusting of eyes makes
It can focus on position as far as possible.For the eyes of people when watching the target of different distance, eyes will produce influx and tune
Section, width concentrate around one point, as spokes on acis can make eyes automatically adjustment direction, so that eyes can generate binocular single vision;The adjusting of eyes can make ophthalmic refractive
The refractive power of system changes, and focuses on certain point, influences the static refraction ability measurement result of eyes.Therefore the present invention
In, when measuring the static refraction ability of eyes, right and left eyes correspond to different lens groups respectively.
Since the distance of intelligent terminal to eyes is determined by the size of shell, it is contemplated that the requirement being conveniently operated, shell
Size can not possibly it is long, the present invention is so that the visual range of eyes is changed using optical lens module, with realize pair
The test of each performance indicator of eyes.
In the present invention, the measurement of ophthalmic refractive ability is realized by Scheiner principles, and measured passes through crack on piece
Two fissure holes observation different colours measurement icon coincidence come realize measure.
When the refractive power of the vision system of measured's eyes is in abnormal state, i.e., first measures pattern through lens
When not falling on retina into the light of eyes convergence after group and crack piece, lens are adjusted by changing optics adjusting part
Group position in the housing changes on intelligent terminal first and measures the distance between two red green sighting targets in pattern, makes
The point of light focusing can forward or move backward in eyes, until it is focused at retina just.In this case, it is tested
The simulation far point d of person's eyes is the distance of eyes far point, and simulation far point d and lens group position in the housing and intelligence are eventually
The distance between two red green sighting targets are related in the upper first measurement pattern in end, and the present embodiment is only to consider red green sighting target spacing
Variation for simulation far point is illustrated, you can pass through on intelligent terminal first and measure two red greens in pattern
The extending line intersection point of line comes calculating simulation far point d, mould between sighting target is stitched corresponding two crack of crack on piece respectively
Quasi- far point apart from it and on screen in the first measurement pattern, the distance between red green item relationship is:
Wherein, a is the spacing of two crack of crack on piece seam, and m is crack piece at a distance from intelligent terminal, and c is the on intelligent terminal
One measures the distance between red green item in pattern, and t is eyes to the distance of crack piece, unit mm.Obtain the simulation of eyes
After far point, so that it may to obtain the refractive power P of eyes(Unit:Diopter).
Due to the distance t very littles of eyes to crack piece, much smaller than the distance of virtual point to eyes, so, t can ignore,
At this time:
It includes one piece of first concave lens, one piece of first convex lens and one piece of crack that refractive power in the present invention, which measures lens group,
Piece, the first concavees lens are arranged close to intelligent terminal, are zoomed in and out for realizing to the first measurement pattern;Crack piece is close to quilt
The optical line terminal of survey person's eyes is arranged;First convex lens is set between the first concavees lens and crack piece and is set close to crack piece
It sets, for changing the visual range measured between pattern and measured.
Said lens can be spherical mirror, cylindrical mirror, aspherical mirror, Fresnel Lenses;Certainly, by concavees lens and convex lens
The lens group of composition can be simple lens or cemented doublet.When for testing measured's eyes, tested eye is kept
Eyeball, crack piece, convex lens, concavees lens and intelligent terminal measure pattern and are on same optic biradial;Another eyes then with
Intelligent terminal shielding patterns are on same optic biradial.
Crack piece for realizing each performance parameter of eyes measurement, including be arranged in shell have incident light selection function
Substrate, the position that measured's eyes are corresponded on substrate offers thang-kng hole.Light-proof material making may be used in substrate,
Semi transparent material making may be used;Be provided with incident light selector on substrate, incident light selector be optical filter or
It is polarised light selection piece;Above-mentioned thang-kng hole can be straight line crack seam, aperture either array of orifices.
When the hole of crack on piece is two or more, show sighting target on screen light can by institute's hole, into
Enter eyes and generate multiple images, generates interference mutually, influence to measure.In the present embodiment, crack piece is selected in light-proof material system
Installation is to the selective optical filter of optical wavelength on the substrate of work, with the mutual crosstalk between elimination;And it is opened on optical filter
If two parallel crack crack structures, the spacing between two parallel cracks seams is corresponding to the pupil diameter of eyes, be 2.5 ±
2mm;The optical schematic diagram of crack piece is as shown in Figure 2.
Mechanical adjustment component is used to drive each device and crack piece in lens group to change the position in shell, to realize
The change of ray traveling optical paths.Mechanical adjustment component includes lateral adjustment, longitudinal adjusting mechanism and input mechanism, wherein laterally
Regulating mechanism measures the left and right position of lens group and eyesight measurement lens group in shell, longitudinally adjust for changing refractive power
Front and back position of the mechanism for changing concavees lens in channel, input mechanism are used for regarding into intelligent terminal input measurement pattern
Mark transformation directive.The preferred button of structure, knob and the gear-driven mechanical structure of mechanical adjustment component.
The preferably automated control mode of lateral adjustment and longitudinal adjusting mechanism in mechanical adjustment component may be used also certainly
Think that manual manipulation mode, input mechanism select manual-operating mechanism.But the either automatic control mode still side of manually controlling
The modes such as light sensation conduction, electronics conduction or Information Conduction all can be used to realize lens in portable refractometer, crack piece in formula
The synchronous variation for measuring icon in pattern of Hole and intelligent terminal.
In the present invention, mechanical adjustment component, measured and signal processing component three cooperation measure state really
Recognize.
In another embodiment of the invention, crack piece uses liquid crystal light phase modulator, i.e., in lighttight glass
On substrate, the array of orifices of regular arrangement, as shown in figure 3, being filled with liquid crystal material in array of orifices, liquid crystal material is adding outside
Under the control of electric field, to generating phase-modulation by its light, it can enough pass through the orifice region to control light.For adopting
With the embodiment of liquid crystal light phase modulator, corresponding mechanical rotation structure is not needed.
Attachment lens group is located at another eyes, including one piece of third convex lens;Third convex lens is against measured's eye
The shell end of eyeball is arranged, can be with for making what measured watched intelligent terminal screen display to loosen pattern or shielding patterns
For simple lens or lens group, lens can select simple lens, balsaming lens, non-spherical lens or Fresnel Lenses etc..
Signal processing component of the present invention includes data processor, for acquiring optical lens group variable condition and displacement
The encoder of amount and for intelligent terminal send measurement result communication module;The input terminal of the data processor connects
The signal end of encoder, the controlled end of the output end connection communication module of data processor.
Measured changes the position of related device in the housing in optical lens module by operating mechanical adjustment component,
In device moving process in optical lens module, when measured's eyes disclosure satisfy that the requirement of setting, measured triggers letter
Number processing component, signal processing component record the position of related device and calculating in current optical lens subassembly according to trigger signal
Corresponding performance parameter;After the completion of measured's Eye testing, signal processing component can measure the straight of value by intelligent terminal
See display.
Due to the setting of regulating mechanism in above-mentioned optical lens module, when the device of lens group is in shell on front-rear direction
When linear displacement occurs, the visual range between measurement pattern and tested eyes on intelligent terminal can also change,
When calculating, optical lens module can be equivalent to the simple lens that focal length is f, simulate the distance d and on screen two of far point at this time
The relationship of the distance between a sighting target c is:
Wherein, l be optical lens module between the piece of crack at a distance from, when the equivalent focal length of optical lens module, that is, do not have
Have a lens, and lens between the piece of crack at a distance fromWhen, distance d is:
As it can be seen that refractive power is the function of distance between two sighting target of red green item on intelligent terminal, it can be by changing on intelligent terminal
Distance between two sighting target of red green item measures the diopter of eyes.
More than, by changing the spacing measured on intelligent terminal in pattern between two red green sighting targets, to realize quilt
The refractive power measurement of survey person's eyes.If the cornea of eyes causes eyes not Tongfang different meridianal radius of curvature are variant
When upward refractive power difference, image can not be then correctly focused on retina, which is known as astigmatism, be the cylinder picture of eyes
Difference;The weighting that eyes with spherical aberration and cylindrical aberration can simply be expressed as spherical aberration S and cylindrical aberration C is asked
With:
Wherein, weighting coefficientIt is related with the axle position A of eyes:,To measure the meridian of astigmatism
Line angle degree.In the embodiment of the present invention, the rotation for rotating in a vertical plane crack piece is may also include in mechanical adjustment component
Turn regulating mechanism, is surveyed in the rotation angle of perpendicular and intelligent terminal by rotation regulating mechanism to be adjusted in synchronism crack piece
Sighting target chooses the mesh that is measured to eyes of different angle meridian in the rotation angle of perpendicular to realize in spirogram case
, to obtain the spherical aberration S, cylindrical aberration C and axle position A of eyes.In another embodiment of the invention, crack piece uses liquid
When brilliant light phase modulation device, different angle is realized by controlling the display pattern of array of orifices pair in liquid crystal phase modulator
The measurement of lower diopter.
In addition, measuring lens group and attachment lens group by refractive power, measured or so is corresponded in intelligent terminal screen
Eye shows that different first measure under pattern and shielding patterns state respectively, can be existed by adjusting the lens group that refractive power measures
Left and right position in shell carries out the measurement of measured's eyes interpupillary distance.Interpupillary distance includes remote interpupillary distance and nearly interpupillary distance.
Use the present invention that can also measure pattern in intelligent terminal by switching and realize measured's uncorrected visual acuity for E sighting targets
Measurement.The standard of standard GB/T -11533-2011 regulation distant visions checks that distance is d=5m, and the present invention utilizes high-resolution
Intelligent terminal show that E sighting targets, the size minimum of single sighting target can reachPixel, by changing in shell
The position of device realizes that its visual range is placed into the purpose of distant place by the while of amplifying sighting target in optical lens module, with reality
Present mancarried device clinical practice measures the uncorrected visual acuity of eyes.
When measuring the uncorrected visual acuity of eyes, the attachment lens group and eyesight measurement lens group of portable refractometer, intelligence are used
Two eyes that measured is corresponded in energy terminal show the second measurement pattern and shielding patterns respectively, and second measures pattern as " E "
Font sighting target pattern.
Eyesight measurement lens group is used to measure the uncorrected visual acuity of measured, including from as far as being closely successively set in inspection section
Two piece of second concave lens and one piece of second convex lens, wherein the second concavees lens are arranged close to intelligent terminal, and the second convex lens leans on
The optical line terminal setting of nearly measured's eyes.
The embodiment of the present invention is used for the eyesight measurement lens group that uncorrected visual acuity measures, and passes through each device in eyesight measurement lens group
The optical transform of part transforms to the E sighting targets pattern opposite visual range with tester's eyes on screen at gauged distance 5m.
Then the size for changing E sighting targets by signal processing component, until measured cannot see clearly the side of occurred sighting targets more than half
Until, trigger signal processing component, signal processing component is synchronized to intelligent terminal, and intelligent terminal can record measured eyes
Naked eyesight.
Lens in each lens group of the present invention influence to be imaged to avoid forming aberration and spherical aberration during use
Sighting target display effect afterwards causes " E " word sighting target to deform or the phenomenon that edge blurry occur, the identification of sighting target is made to be deteriorated, this
The lens of invention are preferably with the good balsaming lens for eliminating aberration effect and with the aspherical of good aplanasia effect
Lens, when specifically used, can all using balsaming lens either all using non-spherical lens or using balsaming lens with
The combination of non-spherical lens or ordinary lens.
The following detailed description of the present invention for testing the interpupillary distance of measured's eyes and the implementation process of adjusting force.
One, interpupillary distance measures
In the measurement process of remote interpupillary distance, after the simple eye remote interpupillary distance measurement that left and right eye can be used, the two, which is added, obtains vision system
Remote interpupillary distance.
Before remote interpupillary distance measures, measured's one eye eyeball is sheltered from first, first carries out the measurement of another eyes monocular interpupillary distance,
Eyes being measured in the present embodiment, lens group being measured by refractive power, in addition one eye eyeball passes through attachment lens group, viewing intelligence
Terminal intelligent terminal.Intelligent terminal side, which is shielding patterns, the other side is shown has the first of red green sighting target to measure pattern
To realize that interpupillary distance measures.When measurement, refractive power is adjusted by lateral adjustment and measures left and right position of the lens group in shell
The sighting target on thang-kng hole, lens group and intelligent terminal for setting to ensure measured's eye pupil, crack on piece is one straight
Line, i.e. measured's eyes are it can clearly be seen that sighting target on intelligent terminal, refractive power measure the mistake that lens group moves back and forth
Sighting target in journey in the first measurement pattern follows crack piece synchronizing moving;Then, signal processing component is calculated according to measurement data
Go out simple eye remote interpupillary distance, then the data of measurement are transferred to by intelligent terminal by wirelessly or non-wirelessly mode and are shown.Then, it turns round
The corresponding lens group of right and left eyes, using same method, the simple eye remote interpupillary distance for carrying out another eyes measures.Finally, signal processing
The monocular interpupillary distance of two eyes is added to obtain the remote interpupillary distance of measured's eyes by component.
Measurement data described above refers to the distance that refractive power measures that lens group moves left and right in shell, according to this
Distance can calculate refractive power and measure lens group to the distance between casing center axis, as be tested the simple eye pupil of eyes
Away from.
In the present invention, refractive power, which measures the distance that lens group moves left and right in shell, can also use displacement identification device
It is acquired, slide-wire rheostat etc. may be used in displacement identification device, and the displacement of measurement is transferred at signal by displacement identification device
Reason component is handled, and the calculating of simple eye remote interpupillary distance is carried out.
Certainly, refractive power measure the distance that is moved left and right in shell of lens group can also use light sensation conduction pattern into
Row acquisition, light sensation conduction pattern are that intelligent terminal coordinates realization jointly with signal processing component.Such structure is by signal
It manages the light that component starts intelligent terminal into line raster to scan, the scanning signal that intelligent terminal is sent out can be from the side of shell at the uniform velocity
Ground is moved to the other side, when being moved on shell the light sensitive component for corresponding to lens centre, the electricity in trigger signal processing component
Road, circuit trigger signal is fed back to intelligent terminal by synchronous signal processing component, after intelligent terminal receives signal, stops light
Scanning, and simple eye remote pupil is calculated by the distance to the distance between portable instrument central axis in recording lamp optical scanning halt
Away from.
Sighting target in the present embodiment uses two parallel red green items, and aberration is larger and brighter, for measured
For, it is readily discernible.And after measuring simple eye remote interpupillary distance, the comparison of right and left eyes interpupillary distance can be also carried out, to determine measured
With the presence or absence of strabismus state.
When measuring the nearly interpupillary distance of eyes, by changing, two red green sighting target centers are inclined in measurement pattern on intelligent terminal
With a distance from optical axis, to carry out the measurement of nearly interpupillary distance.For example, use the reading myopia that people are commonly used away from for 33cm, then
The distance for deviateing optical axis by adjusting two red green sighting targets can adjust measured's eyes and measure the simulation between pattern
Sighting distance is 33cm.
At this point, using simple eye measurement method, i.e., one eye eyeball corresponds to the shielding patterns on intelligent terminal, is tested eyes pair
First on intelligent terminal is answered to measure pattern.By crack piece in lateral adjustment adjusting refractive power measurement lens group in shell
Internal left and right position, until eyes see that measuring sighting target understands and become clear by the fissure hole of crack piece, stop operation and by
Lower acknowledgement key, the circuit in trigger signal processing component, signal processing component calculate the simple eye nearly interpupillary distance of tested eyes.So
Afterwards, the corresponding lens group of right and left eyes of turning round carries out the simple eye nearly interpupillary distance measurement of another eyes using same method.Finally, believe
The monocular interpupillary distance of two eyes is added to obtain the nearly interpupillary distance of measured's eyes by number processing component.The present invention uses bionic human face arc
The mask of degree ensures equipment fitting measured's face, and should keep during measurement eyes relative to equipment position not
It can move left and right, to ensure the accuracy measured.
Adjusting force measures
By the dynamic refraction power for measuring measured's eyes(Adjust near point)With static refraction power(Adjust far point)To calculate
The adjustable range of eyes, adjustable range are length unit, unit cm;It simultaneously can also be according to the refractive power and tune for adjusting near point
The amplitude of accommodation of the power computation eyes of far point is saved, the amplitude of accommodation is the unit of refractive power, and unit is diopter, that is, logical
Adjusting force on Chang Yiyi.
The measurement of adjusting force is to measure lens group and attachment lens group by refractive power to realize measurement.
1, static refraction power(Adjust far point)It measures
Static refraction power(Adjust far point)Measurement be based on carrying out under eyes relaxation state, that is, first have to carry out eyes conjunction
Picture.After measured wears the present invention, controlled in the housing by adjusting the position of eyes and the crack piece of portable refractometer
Picture is closed in position on direction to realize eyes, i.e. two eyes penetrate that refractive power measures lens group and attachment lens group is seen respectively
It is shown as loosening the image that pattern and the first measurement pattern are combined into one on to intelligent terminal.Realize that eyes are closed as after, measured
Eyes become and be in relaxation state, i.e., the measurement of far point is conveniently adjusted in visual unlimited distance.
Under eyes relaxation state, changes the pattern shown on intelligent terminal, make the intelligent terminal corresponding to one eye eyeball
Side, which is shown, loosens pattern, and the intelligent terminal other side display corresponding to measured eyes measures pattern.It is inputted by adjusting
Mechanism makes the spacing in the first measurement pattern between red green item be gradually reduced, and watches on intelligent terminal and surveying when tested eyes
When red green item coincidence in spirogram case becomes yellow, stop adjustment, and trigger signal processing component, signal processing component root
The distance moved to red green center according to red bar or green bar calculates the adjusting far point value d of measured eyesFar, according to dFar
Calculate the refractive power P for adjusting far pointFar。
2, dynamic refraction power(Adjust near point)It measures
When adjusting near point measurement, passes through and change front and back position of the concavees lens in shell in refractive power measurement lens group, simulation
The sighting distance of eyes to intelligent terminal display pattern changes;The pattern that measured's eyes are seen can become clear by fuzzy, move always
Until the sighting target that measured's eyes are seen fogs again.At this point, changing the spacing between red green item, until measured's eye
When the coincidence of red green item is yellow in eyeball viewing measurement pattern, stops operation and confirm, the electricity in trigger signal processing component
Road, signal processing component send a signal to intelligent terminal, red under distance and the distance that intelligent terminal is moved according to concavees lens
The spacing of green sighting target calculates the adjusting near point value d of measured eyesClosely, according to dCloselyCalculate the refractive power P for adjusting near point.
The adjusting force of single eyes, i.e., the adjusting of single eyes are can be obtained by adjusting near point and adjusting the measurement of far point
Range(dFar-dClosely)And the amplitude of accommodation of single eyes(PClosely-PFar).
Three, uncorrected visual acuity measures
The measurement of uncorrected visual acuity using in portable intelligent optometry unit eyesight measurement lens group and attachment lens group realize.
At this point, using simple eye measurement method, i.e., one eye eyeball corresponds to the shielding patterns on intelligent terminal, is tested eyes pair
Second on intelligent terminal is answered to measure pattern.Left and right position of the eyesight measurement lens group in shell is adjusted by lateral adjustment
It sets, until the E sighting targets on eyes, eyesight measurement lens group and intelligent terminal on the second measurement figure are in same optical axis, you can
Carry out the measurement of monocular vision.
By the optical transform of each device in eyesight measurement lens group, on intelligent terminal screen second is measured the E in figure
Sighting target is transformed to relative to the visual range of tester's eyes at gauged distance 5m.Then E sighting targets are converted by input mechanism
Size, until measured cannot see clearly the direction of occurred sighting targets more than half, trigger signal processing component, signal processing
For component synchronization to intelligent terminal, intelligent terminal can record the uncorrected visual acuity of measured's eyes.
Four, vision assessment
The present invention can be tested come comprehensive descision by the static refraction force data, dynamic refraction force data and uncorrected visual acuity of measurement
Whether the eye state of person is in pseudo-myopia state.Specific judgment method is as follows.
If the static refraction power of measured is less than or equal to zero and more than or equal to -1.0, uncorrected visual acuity less than normal value, tune
Section amplitude is less than standard adjustment amplitude size, then can tentatively judge that measured is in pseudo-myopia state;If measured's is quiet
State refractive power is less than or equal to zero, uncorrected visual acuity and is equal to or less than standard adjustment amplitude size less than normal value, the amplitude of accommodation, then may be used
Tentatively judge that measured is in true myopia state;If the refractive power of measured is between -0.25 ~+0.25, uncorrected visual acuity just
Often, then it can tentatively judge that measured's eye state is normal.
The present invention can also judge all measured values of measured in certain period of time by signal processing component analysis summary
Variation tendency, and shown by intelligent terminal, facilitate measured to assess and predict own eyesight situation, sends out in time
The process now changed by pseudo-myopia to true myopia.
Claims (9)
1. portable intelligent optometry unit, it is characterised in that:Shell including being worn on head is provided in shell and is surveyed for showing
Spirogram case and loosen pattern intelligent terminal, for changing measure the optical lens module of optical path between pattern and human eye,
For changing relative distance and position of the optical lens module in equipment mechanical adjustment component and for measured value into
The signal processing component of row analyzing processing;The signal output of the input terminal connection mechanical adjustment component of the signal processing component
End, the controlled end of the output end connection intelligent terminal of signal processing component;The control terminal and optical lens of the mechanical adjustment component
Device in mirror assembly is fixedly connected.
2. portable intelligent optometry unit according to claim 1, it is characterised in that:The optical lens module includes arranged side by side
Refractive power for measuring interpupillary distance and refractive power is set in shell and measures lens group, the eyesight for measuring uncorrected visual acuity
It measures lens group and eyes loosens or nervous attachment lens group, the shell are symmetrically arranged with along central axis for stimulating
Two channels of measured's right and left eyes are corresponded to respectively, and the refractive power measures lens group and eyesight measurement lens group is set up in parallel
In a channel and refractive power measure lens group and eyesight measurement lens group can under the drive of mechanical adjustment component
It is moved left and right in channel, the attachment lens group is fixed in another channel.
3. portable intelligent optometry unit according to claim 2, it is characterised in that:The refractive power measures lens group packet
One piece is included for realizing the first concavees lens zoomed in and out to the measurement pattern, one piece for changing measurement pattern and measured
Between visual range the first convex lens and measured for realizing each performance parameter of eyes and parallel with intelligent terminal screen
Crack piece, first concavees lens are arranged close to intelligent terminal, and crack piece is arranged close to the optical line terminal of measured's eyes, the
One convex lens is set between the first concavees lens and crack piece and close to the setting of crack piece.
4. portable intelligent optometry unit according to claim 3, it is characterised in that:The crack piece includes being arranged in shell
The interior substrate with incident light selection function, the position that measured's eyes are corresponded on substrate offer thang-kng hole.
5. portable intelligent optometry unit according to claim 4, it is characterised in that:The thang-kng hole is two and parallel sets
The crack seam set or several groups of opposite apertures, the spacing between adjacent crack seam or adjacent apertures is 2.5 ± 2mm.
6. portable intelligent optometry unit according to claim 3, it is characterised in that:The mechanical adjustment component includes being used for
Change refractive power measure lens group and eyesight measurement lens group in the lateral adjustment of shell left and right position, for changing recessed
Lens in channel the longitudinal adjusting mechanism of front and back position and for into intelligent terminal input measurement pattern sighting target transformation
The input mechanism of instruction.
7. portable intelligent optometry unit according to claim 2, it is characterised in that:The eyesight measurement lens group includes two
Block is used to reduce the second concavees lens and one piece of size and visual range second for changing screen picture of mobile phone screen image
Convex lens, second concavees lens are arranged close to intelligent terminal, and the second convex lens is arranged close to the optical line terminal of measured's eyes.
8. portable intelligent optometry unit according to claim 2, it is characterised in that:It is provided with one in the attachment lens group
Block is for changing the third convex lens of visual range, shell end setting of the third concavees lens close to measured's eyes.
9. portable intelligent optometry unit according to claim 1, it is characterised in that:The signal processing component includes data
Processor, the encoder for acquiring optical lens module variable condition and displacement and for intelligent terminal send measure
As a result communication module;The signal end of the input terminal connection encoder of the data processor, the output end of data processor connect
Connect the controlled end of communication module.
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