CN108478187A - A kind of eyesight detection device based on eccentricity cycles principle - Google Patents
A kind of eyesight detection device based on eccentricity cycles principle Download PDFInfo
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- CN108478187A CN108478187A CN201810418460.4A CN201810418460A CN108478187A CN 108478187 A CN108478187 A CN 108478187A CN 201810418460 A CN201810418460 A CN 201810418460A CN 108478187 A CN108478187 A CN 108478187A
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- 238000001514 detection method Methods 0.000 title claims abstract description 33
- 230000004438 eyesight Effects 0.000 title claims abstract description 25
- 238000012360 testing method Methods 0.000 claims abstract description 18
- 238000010191 image analysis Methods 0.000 claims abstract description 4
- 210000001747 pupil Anatomy 0.000 claims description 26
- 230000003287 optical effect Effects 0.000 claims description 16
- 239000011521 glass Substances 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 9
- 230000013011 mating Effects 0.000 claims description 6
- 235000002911 Salvia sclarea Nutrition 0.000 claims description 5
- 244000182022 Salvia sclarea Species 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 210000000481 breast Anatomy 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 210000001508 eye Anatomy 0.000 description 32
- 238000010586 diagram Methods 0.000 description 4
- 210000005252 bulbus oculi Anatomy 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008034 disappearance Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 201000009487 Amblyopia Diseases 0.000 description 1
- 208000010415 Low Vision Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 208000030533 eye disease Diseases 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000004303 low vision Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- 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
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/12—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
-
- 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
- A61B3/14—Arrangements specially adapted for eye photography
Abstract
The invention discloses a kind of eyesight detection devices based on eccentricity cycles principle, belong to ophthalmic medical field.Its detection process is taken pictures such as photography, and eyesight detection of taking pictures can be carried out at 1 meter of measured.Including outside display system, internal refraction system and integral control circuit system；It is electrical connected between three, the interface button by operating the display system being connected with integral control circuit system controls refraction system and carries out eccentricity cycles to person under test；Image analysis is carried out to shooting result by circuit system again, completes optometry process；For the present invention compared with existing conventional vision detection device, it is light, efficient, quick, objective to have the advantages that, without measured height cooperation and it is easy to operate, be suitable for any group.
Description
Technical field
The invention belongs to ophthalmic medical fields, specifically design it is a kind of based on eccentricity cycles principle eyesight detection set
It is standby.
Background technology
It is the most basic content of test near and distance that human eye diopter, which tests (i.e. optometry),.A large amount of with rafractive popularize
With the fast development of optometry technology, occur some inevitable problems in the application.A wherein critically important problem
It is that rafractive generally requires one generated in human eye sighting instrument simulation target image, this test is on condition that make at eyeball
In tight state, this is difficult to the capacity of self-regulation of control human eye, measures the eyesight come at this time and is inaccurate, repeatability
It is poor.Therefore, how to allow human eye to be in nature relaxed state, be the important ring for improving eyesight testing accuracy.
The light channel structure of existing rafractive is generally more complicated, and optical component is more, the stabilization of optical system
Property with repeatability it is poorer, the cost of production and processing is also higher；And detection device build is big and process takes cumbersome, need
The higher conformability of measured is wanted, is not suitable for the not high group of the fitnesss such as infant, in ophthalmology disease, amblyopia in children is
Very common eye diseases check very the early vision of children so designing the low vision drop equipment of a fitness
It is important.
Invention content
The purpose of the invention is to overcome the deficiencies in the prior art, propose a kind of regarding based on eccentricity cycles principle
Power detection device, the equipment have many advantages, such as it is light it is portable, optometry processing efficient is quick；It is all brought greatly to doctor and patient
It is convenient, reduce the pain and intense strain of patient, eyeball is made to be in relaxed state during optometry；And it is suitable for each year
Age section crowd；Light path is simpler than traditional optometry unit, improves optical system stability, reduces production cost.
The present invention by a kind of eyesight detection device technical solution based on eccentricity cycles principle it is as follows：
A kind of eyesight detection device based on eccentricity cycles principle, detection process are taken pictures such as photography, can be apart from quilt
Eyesight detection of taking pictures is carried out at 1 meter of survey person.Including external structure and internal structure, the external structure is touch screen display screen, with
The internal structure is electrical connected；The internal structure includes refraction system and integral control circuit system；
The refraction system includes protective glass, light source board, even mating plate, spectroscope, optical filter, phtographic lens and photosensitive
Camera, the light source board are located at below spectroscope at 80mm and with spectroscope at 45 inclinations angle, after phtographic lens is located at spectroscope
At 45 degree of inclinations angle at square 40mm and with spectroscope；The even mating plate is placed on light source board；The optical filter is located at camera lens
Head front；The photosensitive camera is located at phtographic lens rear, for receiving shooting eye pupil image；Before protective glass is located at spectroscope
Side, protective glass shield to internal refraction system and circuit system；
The light that the light source board is sent out is reflected through the spectroscope, and the light of injection exists to person under test's eye pupil through eye pupil
Eyeground is at defocused image (abnormal eyes), and the light that fundus image diffusing reflection goes out is projected by pupil again, in the far point being conjugated with eyeground
It being imaged on face, which part light is transmitted using the spectroscope, is passed through diaphragm, optical filter, is received by phtographic lens, at
As on the photosensitive camera；Optical filter is located in front of pick-up lens, and photosensitive camera is located at phtographic lens rear, is clapped for receiving
Take the photograph eye pupil image.
The integral control circuit processing analyzes the eye pupil image of shooting to calculate human eye diopter, the eye pupil image of shooting
Image analysis is carried out by the centralized control circuit system, obtains parameter needed for optometry, then measured is analyzed by calculating
Human eye optometry information, acquired results are presented in touch display screen.
The pick-up lens can take face subregion, centralized control circuit system by display screen prompt optometry away from
From deviation, hold eyesight detection device and carry out appropriate adjusting, eyes are clearly captured, photosensitive cameras capture to clear eye
The moment of pupil, light source board emit near infrared detection light source according to given mode, and eccentric photography is carried out to human eye.
Further：Light source on the light source board is the regular hexagon light source arrangement with the center difference length of side, light source point
Not Wei each regular hexagon vertex and a central point, on each side of vertex and central point line, with the lamp etc. of same size
Away from arrangement, six regions between vertex and each side of central point line, with the inverted Y-shaped symmetrical same specification light of equidistant arrangement
Source.
Further：The lamp on the hexagon vertex, central point and the unified specification on line is that wavelength is
The common near-infrared luminous diode of 850nm；It is the visible light emitting diode of different colours in six regions.Described can
Light-exposed diode will select highlighted visible light emitting diode, and in this way in eccentricity cycles, person under test's pupil of human is
Moment becomes larger due to the disappearance of visible light for meeting, obtains more accurate measurement result.
Further：During carrying out optometry to person under test, it is seen that light and three, center near-infrared light source are always
Flicker, when phtographic lens being waited for capture clear eye pupil, it is seen that light disappears, and one, bosom near-infrared lamp perseverance is bright, on same one side
On near-infrared light source using origin as symmetric points, outside in, according to counterclockwise two-by-two symmetrically carry out light on and off.
Further：Spectroscopical reflecting surface can anti-all wave bands light, the light source of light source board reaches inspection through reflection
Region is surveyed, the projection wave band of transmission plane is the near-infrared light source of 850nm, and photographic camera is made to receive the eye pupil of reflection near infrared light
Information.
Further：Relative position between the spectroscope, light source board and phtographic lens three, light source board center exist
The corresponding point on spectroscope has the eccentricity of 5mm to corresponding point with phtographic lens optical axis on spectroscope, realizes person under test's human eye
Eccentricity cycles.
Further：The phtographic lens selects infrared fixed-focus telephoto lens, can take the person under test apart from 1 meter of equipment
Eye pupil, preferably end visible light, prevent influence of other stray lights to shooting effect.
The advantages of eyesight detection device and detection method that the present invention is announced and good effect have：
1. this vision drop equipment of invention can carry out photography optometry at 1 meter of person under test's human eye, make doctor and trouble
Person maintains certain safe distance, reduces the pain and intense strain of patient, makes eyeball during optometry in relaxation
State will not cause the appropriateness of human eye to adjust, can obtain preferable measuring state；And the group not high suitable for fitness
Body, optometry process is easily quick, is suitable for all age group crowd.
2. the common led light emitting diodes that the light source of the present invention uses, at low cost, and small on human eye influence, can survey safely
Light.
3. optical system of the present invention is simple, so small, facilitate it is portable, it is easy to operate understandable.
Description of the drawings
Fig. 1 is apparatus of the present invention structural schematic diagram
Fig. 2 is refraction system structural schematic diagram
Fig. 3 is light source plate structure schematic diagram
Fig. 4 is even sheet structure schematic diagram
Specific implementation mode
In order to make technical problems, technical solutions and advantages to be solved be more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
The present invention says a kind of eyesight detection device based on eccentricity cycles principle of proposition, system structure such as Fig. 1 institutes
Show, detection process is taken pictures such as photography, and eyesight detection of taking pictures can be carried out at 1 meter of measured.Including external structure display screen 1
And the internal structure 2 being electrically connected with external structure display screen 1, wherein internal structure includes refraction system 3, integral control circuit
System 4, refraction system 3 include protective glass 5, light source board 6, even mating plate 7, spectroscope 8, optical filter 9, phtographic lens 10 and photosensitive
Camera 11.
The external structure display screen 1 of the present invention, internal refraction system 4 and integral control circuit system 3, electricity between three
Property be connected, pick-up lens can take face subregion, and centralized control circuit system passes through display screen and prompts optometry distance
Deviation holds eyesight detection device and carries out appropriate adjusting, clearly captured to eyes, photosensitive cameras capture to clear eye pupil
Moment, light source board emit near infrared detection light source according to given mode, and the eye pupil image that eccentric photography shooting is carried out to human eye is logical
It crosses the integral control circuit system and carries out image analysis, obtain parameter needed for optometry, then measured people is analyzed by calculating
Eye optometry information, acquired results are presented on appearance display screen.
Light source board 6 is located at below spectroscope at 80mm and with spectroscope 8 into 45 inclinations angle, phtographic lens 10 in the present invention
At 45 degree of inclinations angle at 8 rear 40mm of spectroscope and with spectroscope 8；Between spectroscope, light source board and phtographic lens three
Position place have strict standard, the relative position between three directly affects the interpretation of result of optometry, light source board center
The corresponding point on spectroscope has the eccentricity of 5mm to corresponding point with phtographic lens optical axis on spectroscope, realizes to person under test
The eccentricity cycles of human eye.
As shown in Fig. 2, the principle of photography optometry is that the light that light source board 6 is sent out is reflected through the spectroscope, the light of injection
To person under test's eye pupil, through eye pupil on eyeground at defocused image (abnormal eyes), the light that fundus image diffusing reflection goes out passes through pupil again
It projects, is imaged on the far point face being conjugated with eyeground, wherein illumination region, the common light in far point face and camera lens diaphragm receiving area
Line is transmitted using the spectroscope 8, is passed through diaphragm, optical filter 9, is received by phtographic lens 10, image in the photosensitive phase
On machine 11；Optical filter 9 is located at 10 front of pick-up lens, and photosensitive camera 11 is located at 10 rear of phtographic lens, for receiving shooting eye
Pupil image.
Wherein protective glass 5 is located at 8 front of spectroscope, and protective glass 5 plays internal refraction system and circuit system and protects
Shield acts on, and completely cuts off the interference of external environmental factor.
Light source board 6 as shown in Figure 3, lamp bank cloth are the regular hexagon light source arrangement with the center difference length of side, light source difference
It is equidistant with the lamp of same size on each side of vertex and central point line for each regular hexagon vertex and a central point
Arrangement, six regions between vertex and each side of central point line, with the inverted Y-shaped symmetrical same specification light source of equidistant arrangement.
Wherein, it is the common close red of 850nm that the lamp of the unified specification on hexagon vertex, central point and line, which is wavelength,
UV light-emitting diode 12, near infrared light is not absorbed by human eye, is detection light source；It is the visible light of different colours in six regions
Light emitting diode 13, in order to guide or attract person under test.
Wherein, it is seen that light-emitting diode 13 will select highlighted type, be the person under test because in this way in eccentricity cycles
Pupil of human just can moment becomes larger due to the disappearance of visible light, obtain more accurate measurement result.
Light source arrangement as shown in Figure 3, during carrying out optometry to person under test, it is seen that light and three, center near-infrared
Light source flickers always, when phtographic lens being waited for capture clear eye pupil, it is seen that and light disappears, and one, bosom near-infrared lamp perseverance is bright,
Near-infrared light source on same one side is using origin as symmetric points, outside in, bright according to counterclockwise symmetrically carrying out two-by-two
It goes out.
As shown in figure 4, even mating plate 7 is placed on light source board 6, there is even light action to light source, in the corresponding position of near infrared light
The hole for getting corresponding size is set, in order to not influence the intensity of detection light source.
Spectroscope 8 in refraction system, reflecting surface can anti-all wave bands light, the light source of light source board reaches detection through reflection
The projection wave band in region, transmission plane is the near-infrared light source of 850nm, and photographic camera is made to receive the eye pupil letter of reflection near infrared light
Breath.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to the brief elaboration present invention's
Content is simultaneously implemented according to this, can not limit the scope of the invention.The equivalent change that all Spirit Essences according to the present invention are done
Change or modification should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of eyesight detection device based on eccentricity cycles principle comprising external structure and internal structure, it is described outer
Portion's structure is touch screen display screen, is electrical connected with the internal structure, it is characterised in that：The internal structure includes refraction system
With integral control circuit system；
The refraction system includes protective glass, light source board, even mating plate, spectroscope, optical filter, phtographic lens and photosensitive phase
Machine, the light source board are located at below spectroscope at 80mm and with spectroscope into 45 inclinations angle, and phtographic lens is located at spectroscope rear
At 45 degree of inclinations angle at 40mm and with spectroscope；The even mating plate is placed on light source board；The optical filter is located at pick-up lens
Front；The photosensitive camera is located at phtographic lens rear, for receiving shooting eye pupil image；Before protective glass is located at spectroscope
Side, protective glass shield to internal refraction system and circuit system；
The integral control circuit processing analyzes the eye pupil image of shooting to calculate human eye diopter, and the eye pupil image of shooting passes through
The centralized control circuit system carries out image analysis, obtains parameter needed for optometry, then analyze measured's human eye by calculating
Optometry information, acquired results are presented in touch display screen.
2. a kind of eyesight detection device based on eccentricity cycles principle as described in claim 1, which is characterized in that described
Light source on light source board is to arrange with the regular hexagon light source of the center difference length of side, light source be respectively each regular hexagon vertex and
One central point, vertex are equidistantly arranged on each side of central point line with the lamp of same size, vertex and central point line
Each side between six regions, with the inverted Y-shaped symmetrical same specification light source of equidistant arrangement.
3. a kind of eyesight detection device based on eccentricity cycles principle as claimed in claim 2, which is characterized in that described
Hexagon vertex, central point and the unified specification on line lamp be common near-infrared luminous two pole that wavelength is 850nm
Pipe；It is the visible light emitting diode of different colours in six regions.
4. a kind of eyesight detection device based on eccentricity cycles principle as claimed in claim 3, which is characterized in that right
During person under test carries out optometry, it is seen that light and three, center near-infrared light source flicker always, and phtographic lens is waited for capture
When clear eye pupil, it is seen that light disappears, and one, bosom near-infrared lamp perseverance is bright, and the near-infrared light source on same one side is pair with origin
Claim point, outside in, according to counterclockwise symmetrically progress light on and off two-by-two.
5. a kind of eyesight detection device based on eccentricity cycles principle as described in claim 1, which is characterized in that described
Spectroscopical reflecting surface can anti-all wave bands light, the light source of light source board reaches detection zone, the projection wave of transmission plane through reflection
Section is the near-infrared light source of 850nm, and photographic camera is made to receive the eye pupil information of reflection near infrared light.
6. a kind of eyesight detection device based on eccentricity cycles principle as described in claim 1, which is characterized in that described
Relative position between spectroscope, light source board and phtographic lens three, light source board center on spectroscope corresponding point with take the photograph
Shadow camera lens optical axis corresponding point on spectroscope has the eccentricity of 5mm, realizes the eccentricity cycles of person under test's human eye.
7. a kind of eyesight detection device based on eccentricity cycles principle as described in claim 1, which is characterized in that described
Phtographic lens selects infrared fixed-focus telephoto lens.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810418460.4A CN108478187A (en) | 2018-05-04 | 2018-05-04 | A kind of eyesight detection device based on eccentricity cycles principle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810418460.4A CN108478187A (en) | 2018-05-04 | 2018-05-04 | A kind of eyesight detection device based on eccentricity cycles principle |
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| CN108478187A true CN108478187A (en) | 2018-09-04 |
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| CN201810418460.4A Pending CN108478187A (en) | 2018-05-04 | 2018-05-04 | A kind of eyesight detection device based on eccentricity cycles principle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110522408A (en) * | 2019-07-25 | 2019-12-03 | 北京爱诺斯科技有限公司 | A kind of eye eyesight based on eccentricity cycles technology judges system and method |
| CN110575134A (en) * | 2019-07-25 | 2019-12-17 | 北京爱诺斯科技有限公司 | method for calculating myopia degree based on eccentric photography |
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