CN104490359B - For the mancarried device of juvenile's Vision screening - Google Patents
For the mancarried device of juvenile's Vision screening Download PDFInfo
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- CN104490359B CN104490359B CN201510023960.4A CN201510023960A CN104490359B CN 104490359 B CN104490359 B CN 104490359B CN 201510023960 A CN201510023960 A CN 201510023960A CN 104490359 B CN104490359 B CN 104490359B
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Abstract
The present invention relates to a kind of mancarried device for juvenile's Vision screening, this device comprise from left to right with optical axis install successively for visualized operation and testing result display display module, for obtain detected image carry out analyzing and processing image analysis processing module, comprise tight shot and imageing sensor, for the image collection module of system imaging and provide the light source module of detection light source and fixation light source for examinee's eyes, wherein, described light source module is made up of the light source mainboard coaxially assembled and light barrier.Light source module of the present invention adopts direct manner, structure is simple, be easy to realize, avoid the decline of the certainty of measurement that veiling glare causes, meanwhile, the mode that light source module adopts infrared light and visible ray to combine, visible ray is used for causing examinee to note, infrared light is used for visual ability and detects, and the juvenile lower for mating capability or mentally defective person design, reduce metrical error.
Description
Technical field
The invention belongs to ophthalmic medical equipment technical field, what relate to is a kind of mancarried device for juvenile's Vision screening.
Background technology
Eyes are the most important sensory organ of human body, and the external information that people receive about more than 80% is obtained by eyes.In recent years, the ratio of eyesight abnormality crowd raises year by year, especially in children population, occurs that the phenomenon of visual problems is more widespread.And if early stage visual performance dysplasia can not check rectification in time, the visual problems with all one's life will be caused, bring the dual injury of physiology and soul to the child in growing up, and the aspects such as entering a higher school after likely having influence on, employment.Therefore, carry out juvenile's Vision screening, to there being the timely interventional therapy of the patient of early vision obstacle, to each family and the whole society significant.
There is eyesight exam method at present and be divided into subjective optometry method and the large class of objective optometry two.Subjective optometry method leans on the conscious vision ability of examinee to a kind of inspection method of the character and intensity of anomaly of determining refractive status.Be generally under pupil keeps naturalness, trial lens be placed on patient at the moment, decide ametropic character and the optimal correcting lens number of degrees according to the quality of the Subjective visual acuity of patient.This method is easy to learn, convenient operation, but determines that the refractive error of patient consumes a large amount of time and efforts by changing trial lens frequently, is not suitable for carrying out large-scale Vision screening.
Objective optometry is the method that doctor operates the refractive status of comprehensive optometry instrument to examinee and judges.This method detection speed is fast, but needs examinee to watch the target of machine intimate all the time attentively, and same being difficult to adapts to the not high juvenile's detection of mating capability.In addition, the general volume of this kind equipment is comparatively large, expensive, and needs certain operating experience, therefore can not be used for large-scale Vision screening.
Patent CN103930015 describes a kind of checkout gear adopting beam splitter, as shown in Figure 1, comprise display module 1, image analysis processing module 2, image collection module 3, the Lights section 4, the array of source virtual image 5, beam splitter 6, adopt the array of source 7 of beam splitter device, optical axis 8 and examinee's eyes 9, in the Lights section of this device, its array of source 7 is arranged on bottom of device, the beam splitter 6 of one piece from the horizontal by 45 ° is had above light source, array of source launches infrared light and visible ray is shone to examinee's eyes 9 by beam splitter reflection, infrared light is used for detecting, visible ray is used for causing examinee to note, the light-transmissive beam splitter of returning in examinee's fundus reflex is received by image capture module.The shortcoming of this kind of device is that beam splitter can introduce the virtual image and veiling glare, makes the contrast of image reduce and have a strong impact on picture quality, and the precision detected is reduced greatly, such device complex structure simultaneously, volume is large, and debug process is more loaded down with trivial details, system cost is higher, is not suitable for industrial-scale production.
Device described by patent WO2014020013 as shown in Figure 2, comprise display module 1, image analysis processing module 2, image collection module 3, optical axis 8, examinee's eyes 9 and light source module 10, the light source of this device light source module is M shape arrangement, use only the insensitive infrared band light emitting diode of human eye.For subjective consciousness, the comparatively strong and examinee with mating capability can detect this kind of device smoothly.Because the juvenile of less than 6 years old does not possess stronger mating capability, the very difficult testing requirement according to device is with good attitude and the horizontal compounding practice person of fixation, and the detection carried out in this case can exist very big error.Therefore, the inapplicable crowd poor to mating capabilities such as juvenile or mentally defective persons of this device carries out the detection of visual ability.
It is simple that the present invention is intended to develop a kind of structure, system cost low and be applicable to the visual of the poor examinee of mating capability can force checking device.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of mancarried device for juvenile's Vision screening is provided.
The present invention solves its technical problem and takes following technical scheme to realize:
A kind of mancarried device for juvenile's Vision screening, this device comprise from left to right with optical axis install successively for visualized operation and testing result display display module, for obtain detected image carry out analyzing and processing image analysis processing module, comprise tight shot and imageing sensor, for the image collection module of system imaging and provide the light source module of detection light source and fixation light source for examinee's eyes
Wherein, described light source module is made up of the light source mainboard coaxially assembled and light barrier;
Described light source mainboard comprises circuit board further, circuit board central authorities are shaped with circular hollow hole, in hollow hole, equally distributed radial brace summer converges at the center of circle, described brace summer is used for fixing central infrared light LED, multiple infrared light LED that disperses is centered by central infrared light LED, radially in emitting shape, arrangement is arranged on the circuit board outside hollow hole, and adjacent transmission direction interval angles is 60 °, is dispersing concentric circles installation visible LED on the circuit board between infrared light LED array;
Described light barrier is overall is light-proof material making, through hole is had in the center of described light barrier, installation infrared optical filter on through hole, the central source through hole mated with central infrared light LED light source is had at the center of infrared fileter, simultaneously, light barrier is shaped with and light source mainboard disperses infrared light LED and visible LED light source position is corresponding, the light source through holes of size coupling.
And the effective radius of tight shot matches in described circuit board central, circular hollow hole radius and image collection module.
And the infrared filtering chip size that described light barrier center through hole is installed is identical with circuit board central, circular hollow hole radius size.
And on described circuit board, brace summer is arranged on the separated time direction, angle of dispersing infrared light LED adjacent transmission direction, and each brace summer interval angles is 60 °, circumferentially has 6.
And described light source module, centered by central infrared light LED, with optical axis alignment, ensures coaxially to install with image collection module.
And, light barrier is provided with range finder module, described range finder module comprises infrared distance measurement element or supersonic sounding element, and range finder module confirms the operating distance of current light barrier and examinee's eyes, and the output of range finder module is connected with the data input of image analysis processing module.
And the visible LED that on described circuit board, concentric circles is installed is substituted by visible ray paster LED, meanwhile, relative to the position of visible ray paster LED on light barrier, is provided with one and makes guide-lighting ring flat-plate by transparent material.
And, be provided with in image collection module side and comprise bluetooth component or WIFI parts or wireless transport module that both have concurrently, the processing result image being input as the output of image analysis processing module of described wireless transport module, the object output of wireless transport module is matched handset, or for the server of interconnection network.
Advantage of the present invention and good effect are:
1, light source module of the present invention adopts direct-injection type, and structure is simple, is easy to realize, avoids the decline of the certainty of measurement that veiling glare causes.
2, light source module of the present invention adopts the mode that infrared light and visible ray combine, visible ray is used for causing examinee to note, human eye is insensitive for infrared light simultaneously, and detect for visual ability, the juvenile lower for mating capability or mentally defective person reduce metrical error.
3, volume of the present invention is little, lightweight, and full-automatic operation, without the need to any use experience, is applicable to large-scale Vision screening and uses.Testing result by being wirelessly transmitted to client server, can complete automatization's housekeeping of mass data, for large data statistics provides convenient.
Accompanying drawing explanation
Fig. 1 is the apparatus structure schematic diagram adopting beam splitter in prior art;
Fig. 2 is the apparatus structure schematic diagram not adopting visible light source in prior art;
Fig. 3 is apparatus of the present invention structural representations;
Fig. 4 is the assembly structure schematic diagram of light source module in Fig. 3;
Fig. 5 is the right view of light source mainboard in Fig. 4;
Fig. 6 is the right view of light barrier in Fig. 4;
Fig. 7 is the structural representation after Fig. 6 adopts guide-lighting ring flat-plate.
Detailed description of the invention
Be further described the invention process below in conjunction with accompanying drawing, following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of mancarried device for juvenile's Vision screening, as shown in Figure 3, this device comprise from left to right with optical axis 8 install successively for visualized operation and testing result display display module 1, for obtain detected image carry out analyzing and processing image analysis processing module 2, comprise tight shot and imageing sensor, for the image collection module 3 of system imaging and provide the light source module 11 of detection light source and fixation light source for examinee's eyes 9, innovative point of the present invention is:
Wherein, as shown in Figure 4, described light source module is made up of the light source mainboard 14 coaxially assembled and light barrier 15, as shown in Figure 5, described light source mainboard comprises circuit board 16 further, circuit board central authorities are shaped with circular hollow hole 20, in hollow hole, equally distributed radial brace summer 22 converges at the center of circle, described brace summer is used for fixing central infrared light LED21, power to central infrared light LED for wire of arranging simultaneously, multiple infrared light LED17 that disperses is centered by central infrared light LED, radially in emitting shape, arrangement is arranged on the circuit board outside hollow hole, each transmit direction there is N, what N >=3 arranged at equal intervals disperses infrared light LED, adjacent transmission direction interval angles is 60 °, have 6 groups vertically, the array dispersing infrared light LED composition is used as the detection light source of apparatus of the present invention, at close hollow hole outer ledge, dispersing concentric circles installation visible LED 18 on the circuit board between infrared light LED array, the array of visible LED composition is used as the fixation light source of apparatus of the present invention,
In specific embodiment of the invention, in described circular hollow hole radius and image collection module, the effective radius of tight shot matches, and avoids the reduction of the excessive or too small device performance caused of circular hollow hole.
In specific embodiment of the invention, described brace summer is arranged on the separated time direction, angle of dispersing infrared light LED adjacent transmission direction, and each brace summer interval angles is 60 °, circumferentially has 6.
In specific embodiment of the invention, be shaped with the circuit board screwing through hole 19 for fixed light source mainboard and light barrier on circuit boards.
In specific embodiment of the invention, described light source module, centered by central infrared light LED, with optical axis alignment, ensures coaxial with image collection module.
Wherein, as shown in Figure 6, described light barrier is overall is light-proof material making, light for stopping central authorities and dispersing infrared light LED and visible LED radiation enters image collection module, avoid veiling glare to cause interference to received signal light, affect picture quality, certainty of measurement is declined.Through hole is had in the center of described light barrier, installation infrared optical filter 25 on through hole, infrared fileter radius is identical with circuit board central, circular hollow hole radius, for stopping external environment visible ray, only allow infrared light to enter image collection module, reduce the interference of veiling glare further.Light barrier is shaped with and light source mainboard is dispersed infrared light LED and light source through holes 24 corresponding to visible LED light source position, light source through holes size matches with the size of dispersing infrared light LED and visible LED light source, meanwhile, the central source through hole 26 mated with central infrared light LED light source is had at the center of infrared fileter.
In specific embodiment of the invention, as shown in Figure 6, light barrier has the light barrier screwing through hole 23 that main on-board circuitry plate bolt lead to the hole site matches with light source.
In specific embodiment of the invention, as shown in Figure 6, light barrier is provided with range finder module 13, described range finder module comprises infrared distance measurement element or supersonic sounding element, for confirming the operating distance of current light barrier and examinee's eyes, the output of range finder module is connected with the data input of image analysis processing module, judges work at present distance whether conformance with standard by image analysis processing module analysis.
In specific embodiment of the invention, as shown in Figure 7, the another kind of implementation of light source module, the visible LED that on described circuit board, concentric circles is installed is substituted by visible ray paster LED 27, its position is still positioned at the interval region in the adjacent transmission direction of dispersing infrared light LED array, on the circle being the center of circle with central infrared light LED, simultaneously, relative to the position of visible ray paster LED on light barrier, be shaped with a guide-lighting ring flat-plate 28, guide-lighting ring flat-plate is made by transparent material, and carried out frosting treatment, it is more even that its advantage is to make the visible radiation distribution as fixation light source, the possible stimulation that visible ray direct projection causes human eye is reduced while causing examinee to note, make apparatus of the present invention certainty of measurement higher, the scope of application is wider.
In specific embodiment of the invention, as shown in Figure 1, be provided with in image collection module side and comprise bluetooth component or WIFI parts or wireless transport module 12 that both have concurrently, the processing result image being input as the output of image analysis processing module of described wireless transport module, the object output of wireless transport module is corollary equipment, as applied mobile phone, or for interconnection network server, carry out data sharing operations.
The work process of apparatus of the present invention is as follows:
Examinee can select a kind of more comfortable attitude, and operator starts the instruction detected by display module input, the testing process that device will enter automatically.Visible LED starts random flicker, and runs through whole testing process to detecting end.Its objective is the attention in order to attract examinee, making on its middle section being primarily focused on the light source module of apparatus of the present invention, the region namely near optical axis.This mode can improve its fixation ability of examinee, namely improves the cooperate degree of examinee to a certain extent, reduces because of the measurement error that examinee's head rocks or direction of fixation changes and causes.It is advantageous that and also can obtain reliable measurement result for juvenile or mentally defective person, greatly extend the scope of application of apparatus of the present invention.The visible ray of flicker can also reduce examinee's eyes because watching the visible light source of Chang Liang attentively the Diopter accommodation that causes, avoid bringing measurement error.Central authorities infrared light LED lights, and in the middle part of adjustment apparatus of the present invention optical axis alignment bridge of the nose, i.e. eyes line point midway, now occurs the image of examinee's eyes and be positioned at picture zone line in display module.Range finder module, by the front and back position of assist operator adjusting device, makes the distance between device and measured meet the requirement of the operating distance of regulation; Now display module will there will be the image of examinee's eyes clearly.The bright pupil of fundus reflex illumination, wherein only have infrared portions can enter image collection module by infrared fileter, therefore image analysis processing module carries out identifying processing to the image collected, and can draw the testing results such as examinee's pupil diameter, interpupillary distance, direction of fixation.The infrared light LED departing from optical axis lights excitation one by one according to the order preset, according to geometric optical theory, pupil luminance distribution response and infrared light LED to depart from optical axis degree relevant with examinee's dioptric degree, a series of pupil response images corresponding with excitation that therefore can obtain, therefrom draw examinee's refractive status by image analysis processing module by a series of image processing algorithm.
Examinee can be evaluated according to above obtained testing result and whether there is the visual problems such as ametropia, anisometropia, stravismus, amblyopia.Testing result can be sent to client server by wireless transport module, realizes data sharing, is convenient to the head of a family or medical institutions enforcement understanding examinee vision condition, is convenient to carry out large data statistic analysis simultaneously.Apparatus of the present invention structure is simple, is easy to realize, and volume is little, is easy to carry, and testing process is automatic, and 1-2 can complete detection in second.
Above-described embodiment only for technical conceive of the present invention and feature are described, its object is to concise and to the point elaboration content of the present invention and implements according to this, can not limit the scope of the invention.The equivalence change that all spirit according to the present invention are done or modification all should be encompassed within protection scope of the present invention.
Claims (8)
1. the mancarried device for juvenile's Vision screening, this device comprise install successively with optical axis from left to right the display module for visualized operation and testing result display, for obtain detected image and carry out analyzing and processing image analysis processing module, comprise tight shot and imageing sensor, for the image collection module of system imaging and provide the light source module of detection light source and fixation light source for examinee's eyes, it is characterized in that:
Wherein, described light source module is made up of the light source mainboard coaxially assembled and light barrier;
Described light source mainboard comprises circuit board further, circuit board central authorities are shaped with circular hollow hole, in hollow hole, equally distributed radial brace summer converges at the center of circle, described brace summer is used for fixing central infrared light LED, multiple infrared light LED that disperses is centered by central infrared light LED, radially in emitting shape, arrangement is arranged on the circuit board outside hollow hole, and adjacent transmission direction interval angles is 60 °, is dispersing concentric circles installation visible LED on the circuit board between infrared light LED array;
Described light barrier is overall is light-proof material making, through hole is had in the center of described light barrier, installation infrared optical filter on through hole, the central source through hole mated with central infrared light LED light source is had at the center of infrared fileter, meanwhile, light barrier is shaped with and the light source through holes of light source mainboard being dispersed infrared light LED and visible LED light source position is corresponding, size is mated.
2. the mancarried device for juvenile's Vision screening according to claim 1, is characterized in that: in described circuit board central, circular hollow hole radius and image collection module, the effective radius of tight shot matches.
3. the mancarried device for juvenile's Vision screening according to claim 1, is characterized in that: the infrared filtering chip size that described light barrier center through hole is installed is identical with circuit board central, circular hollow hole radius size.
4. the mancarried device for juvenile's Vision screening according to claim 1, it is characterized in that: on described circuit board, brace summer is arranged on the separated time direction, angle of dispersing infrared light LED adjacent transmission direction, each brace summer interval angles is 60 °, circumferentially has 6.
5. the mancarried device for juvenile's Vision screening according to claim 1, is characterized in that: described light source module, centered by central infrared light LED, with optical axis alignment, ensures coaxially to install with image collection module.
6. the mancarried device for juvenile's Vision screening according to claim 1, it is characterized in that: on light barrier, range finder module is installed, described range finder module comprises infrared distance measurement element or supersonic sounding element, range finder module confirms the operating distance of current light barrier and examinee's eyes, and the output of range finder module is connected with the data input of image analysis processing module.
7. the mancarried device for juvenile's Vision screening according to claim 1, it is characterized in that: the visible LED that on described circuit board, concentric circles is installed is substituted by visible ray paster LED, meanwhile, light barrier is provided with one relative to the position of visible ray paster LED and makes guide-lighting ring flat-plate by transparent material.
8. the mancarried device for juvenile's Vision screening according to claim 1, it is characterized in that: be provided with in image collection module side and comprise bluetooth component or WIFI parts or wireless transport module that both have concurrently, the processing result image being input as the output of image analysis processing module of described wireless transport module, the object output of wireless transport module is matched handset or the server for interconnection network.
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102412525B1 (en) * | 2016-07-25 | 2022-06-23 | 매직 립, 인코포레이티드 | Optical Field Processor System |
| CN106580244A (en) * | 2016-11-22 | 2017-04-26 | 上海美沃精密仪器股份有限公司 | Portable infrared eccentric photorefraction system |
| CN107184178A (en) * | 2017-06-26 | 2017-09-22 | 廖亮举 | A kind of hand-held vision drop instrument of intelligent portable and optometry method |
| CN107890336B (en) * | 2017-12-05 | 2020-10-27 | 中南大学 | Diopter detecting system based on intelligent handheld device |
| CN107951464B (en) * | 2017-12-17 | 2021-05-28 | 苏州润创软件技术有限公司 | Vision detection system and method |
| CN109758111A (en) * | 2019-02-28 | 2019-05-17 | 重明鸟(苏州)智能技术有限公司 | A kind of portable visual acuity disease screening instrument based on AI artificial intelligence platform |
| CN110251073B (en) * | 2019-07-18 | 2024-01-30 | 南京览视医疗科技有限公司 | Diagnostic device for intelligently screening strabismus and diopter |
| CN110840393A (en) * | 2019-12-18 | 2020-02-28 | 天津市索维电子技术有限公司 | Refractive examination device and method applied to self-service medical treatment |
| CN111067476A (en) * | 2020-01-08 | 2020-04-28 | 上海美沃精密仪器股份有限公司 | Portable infrared eccentric photography optometry system |
| CN113907699A (en) * | 2021-11-12 | 2022-01-11 | 长沙安视康医疗科技有限公司 | Vision measuring device and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3703310B2 (en) * | 1997-05-30 | 2005-10-05 | 株式会社ニデック | Hand-held ophthalmic device |
| JP3679331B2 (en) * | 2001-01-25 | 2005-08-03 | 株式会社エクスプローラ | Refractive correction device |
| CN201404199Y (en) * | 2009-02-27 | 2010-02-17 | 深圳职业技术学院 | Retinoscopy device provided with screen display function |
| US8727534B2 (en) * | 2011-01-24 | 2014-05-20 | Huvitz Co., Ltd. | Automatic refracto-keratometer |
| CN104161495B (en) * | 2014-08-25 | 2016-08-31 | 苏州四海通仪器有限公司 | Examination of visual acuity prediction means |
| CN204410779U (en) * | 2015-01-19 | 2015-06-24 | 天津市索维电子技术有限公司 | A kind of mancarried device for juvenile's Vision screening |
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