CN108324239A - Portable intelligent optometry unit - Google Patents

Portable intelligent optometry unit Download PDF

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Publication number
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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China
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eyes
lens
measured
lens group
intelligent terminal
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CN201810116578.1A
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CN108324239B (en
Inventor
袁静
王倩
焦辉广
王兴昌
曲文龙
焦虹霖
刘世凯
张冬华
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Shenzhen Vision Stick Medical Technology Co ltd
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Tengu Health Science And Technology (shenzhen) Co Ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/103Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/0016Operational features thereof
    • A61B3/0041Operational features thereof characterised by display arrangements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/0083Apparatus 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)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Eye Examination Apparatus (AREA)

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

Portable intelligent optometry unit
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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