CN205006859U - Two mesh pupils comprehensive testing system of setting a camera - Google Patents
Two mesh pupils comprehensive testing system of setting a camera Download PDFInfo
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- CN205006859U CN205006859U CN201520145990.8U CN201520145990U CN205006859U CN 205006859 U CN205006859 U CN 205006859U CN 201520145990 U CN201520145990 U CN 201520145990U CN 205006859 U CN205006859 U CN 205006859U
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Abstract
The utility model discloses a two mesh pupils comprehensive testing system of setting a camera, this system include two mesh pupil check out test set imaging system of gripping formula and pupil pursuit measured module, wherein, imaging system contains two infrared camera, two infrared source of illumination, two thorns laser source, gripping formula equipment and singlechips, and infrared camera, source of illumination, thorn laser source, singlechip integration are inside gripping formula equipment, and camera and light source are connected with the singlechip, are responsible for the control of signal and the input/output of data by the singlechip, it is integrated in the singlechip that measured module is tracked to the pupil, tracks the measurement to the image of singlechip collection to carry out analysis processes to measuring result, still include the removal seat of forming a complete set with the handle, this system's suitability is strong, can be applied to occasions such as first aid, field, and application prospect is huge.
Description
Technical field
This utility model belongs to field of visual inspection, be specifically related to a kind of binocular pupil to light comprehensive detection system, comprise thermal camera, infrared illumination source, stimulating light source, grasping type device, measure display device, Single-chip Controlling, data processing and control module and pupil tracing measuring system module, be suitable for the medical applications of Clinical Ophthalmology, neurosurgery, psychiatric section and association area thereof.
Background technology
When human eye is subject to photostimulation, contracted pupil, is called pupillary light reflex.The sphincter pupillae of the parasympathetic innervation that the contraction of pupil is moved in nerve by eye completes, and the expansion of pupil is completed by the dilator pupillae of sympathetic innervation, and both coordinate to restrict each other at maincenter mutually, thus realizes complicated pupillary light reflex and control.The reflection of homonymy claims direct light reflex, and offside contracted pupil claims consensual reflex.Central regulation damages and luminous reflectance will be caused to weaken or disappear.
The diameter of normal pupil is 2.5-4.5 millimeter, rounded, and both sides pupil waits greatly substantially, and difference is generally no more than 0.5 millimeter, and luminous reflectance is sensitive.Everyone pupil size affects, in different size by factors such as age, physiological status, dioptric, external environments.Pupil diameter is as more than 6 millimeters or be less than 2 millimeters for abnormal; Both sides anisocoria, especially blunt with light emission or disappear time be pathologic.In normal person, child's pupil is comparatively large, and old man is less.Contracted pupil in bed, becoming again large after waking up, is physiological phenomenon.Can contracted pupil be caused when some drugs is poisoning, as organophosphor, barbital Lou, the derivant of morphine and Opium etc. poisoning.Some mental symptom, as anxiety, terrified, pain etc. can cause platycoria; Atropine, cocaine and creotoxin are poisoning etc. also can cause platycoria; The shape of pupil, size and luminous reflectance can be affected, as the pathological changes such as cornea, iris during eye local patholoic change.Therefore clinically according to above-mentioned characteristic, even pupillary light reflex equipment is used to carry out examination relevant disease in treating narcotic addiction field in Clinical Ophthalmology, neurosurgery, psychiatric section.
With assembling light during pupillary light reflex equipment inspection, irradiating in the middle of aiming at two, observing luminous reflectance, light source is shifted to respectively bilateral pupil central authorities, observe direct reflection and the indirect light reflex of pupil, pupil under light illumination again, cause aperture to diminish, be called direct light reflex.As another eye of illumination, the pupil of non-illumination eye causes and reduces, and is called indirect light reflex.Directly and indirect reference all disappear, see deep coma or homonymy oculomotorius is impaired; Direct light reflex disappears, and indirect light reflex exists, and sees ION impaired; Therefore binocular is necessary to optical reflectance measurements.
Pupillary light reflex has incubation period, namely from photostimulation to pupil start react interval.Coma patient performance is blunt, and incubation period is longer, and stimulates sensitive time too short, and pupillary light reflex phenomenon is not obvious, therefore needs to extend light stimulation time for degree of depth coma patient.
Tradition pupil detection mode mainly contains electroretinogram, visual evoked potential and electro-oculogram etc.; Pupillometer is mainly totally enclosed type inspection box; Portable inspection equipment mainly contains hand-held pupil lamp, pocket lamp etc.The shortcoming of existing checkout facility and method is:
(1) measure content, precision limited: hand-held pupil lamp, pocket lamp etc. cannot to the size of pupil and objective to luminous reflectance situation, quantitatively, accurately measure, comprising cannot to the measurement of luminous reflectance incubation period, pupil contraction speed etc.;
(2) portability is poor: instrument for examining pupil equipment volume is comparatively large, heavier, and needs to be placed on smooth environment, is not suitable for using in the wild;
(3) detected object is limited: existing equipment, and stimulating light source stimulation time is fixed, and can not check disease, as severe coma patient for special sufferer;
(4) operation not convenient, be subject to interference caused by subjective factors: traditional instrument for examining pupil equipment, a lot of test link needs artificial participation, manually-operated diversity and subjective judgment all may cause test inaccurate, and require that the fitness of experimenter is very high, can bring sticky feeling to experimenter;
(5) poor real: the collected by camera frame frequency of existing pupil detection equipment is lower, pupillometry software poor real, therefore certainty of measurement is limited;
(6) operating efficiency is limited: the inspection of binocular pupillary light reflex do not supported by existing portable equipment, cannot the patient of examination indirect light reflex exception;
(7) measurement result is not directly perceived: existing pupillary light reflex equipment provides measurement result parameter, nothing change curve intuitively.
For the above-mentioned shortcoming of legacy equipment, inventor designs a kind of binocular pupillary light reflex tracking system.
Utility model content
For overcoming deficiency of the prior art, this utility model have developed a kind of binocular pupil to light comprehensive detection system, comprises thermal camera, infrared illumination source, stimulating light source, grip device, display device, single-chip data processing and control module and pupil tracing measurement module.The stimulating light source temporal mode of this equipment is adjustable, supports binocular pupillometry, and portable devices is strong, and pupil tracing measuring system arithmetic accuracy is high, real-time, improves device measuring precision.
Wherein, it is inner that thermal camera, light source and single-chip data processing module are integrated in grasping type device, and display module is installed on outside grasping type device; Pupil tracing measurement module is applied to single-chip data processing module, and obtain camera image input by single-chip microcomputer, pupil tracing measurement module tracing computation, single-chip microcomputer exports display screen or other terminal to by wireless WIFI or bluetooth; Infrared illumination source, stimulating light source are by grasping type device by single-chip microcomputer processing controls, and the button namely on grasping type device, by the button on grasping type device, selects the different source stimulating time to measure;
Wherein, the software of pupil tracing measurement module is by design multiple step format region adaptivity sub-pix track algorithm, while raising pupil tracking accuracy, also the following calculation algorithm time is made to be reduced to original 1/20 even lower, greatly improve the time resolution of pupil tracking process, better can meet the current demand of clinical high-precision high-speed pupil tracing.Concrete grammar is intensity profile for eye image and noise behavior, propose the automatic threshold segmentation algorithm based on human eye pupil gray feature, achieve the intercepting of coarse positioning to pupil center and pupil region, avoid the impact of the chaff interferences such as hot spot, eyelash, eyelid.According to the result after coarse positioning, remove the bright spot that pupil intraoral illumination light source produces, automatic threshold calculates again, judge to calculate pupil barycenter, limit next frame pupil position and pupil region fast according to this centroid position, accelerate detection speed, the real-time positioning realizing pupil is followed the trail of.The Measurement Algorithm real-time of pupil tracing measuring system is high, and capture continuous print pupil image, collecting sample is many, achieves high-precision pupil tracing and detects.
In addition, according to the analysis of data collected measurement result under different stimulated condition, design analysis scheme, according to test experiments and clinical practice test, analyzes the standard reference frame obtaining a set of pupillary light reflex parameter, and exports diagnosis report.Directly can be presented at body carries on display screen, can also be stored, compress technique completes the mutual of portable or wearable device and terminal by the Radio Transmission Technology such as bluetooth, ZigBee, Wifi and wired connection mode by data.
The beneficial effect of measuring system of the present utility model is:
(1) grasping type or Wearable device portability by force, can be applicable to the occasion that the natural conditions such as first aid, ward, even field are poor;
(2) measurement result is accurate, directly perceived, can promptly show on a display screen;
(3) grasping type handle is detachable, and equipment body can be used as the core component of Wearable device, is fixed on separately operating board or is fixed on it experimenter;
(4) support binocular pupillometry, direct and indirect pupillary light reflex measurement result can be obtained;
(5) equipment flexibility ratio is high, supports wireless or wired by measurement result output data terminal, meets measurement result memory requirement;
(6) stability of measurement result is high, and grasping type or Wearable structure ensure that equipment and eyes phase position are stablized, and ensure that pupil image quality and measurement result precision;
(7) photic stimulator of measurement device stimulates spectrum, stimulus intensity, stimulus waveform and stimulation time to arrange as required, meets the demand of clinical multiple indication and special environment;
(8) pupil tracing Survey Software algorithm adopts multiple step format region adaptivity sub-pix tracking, and tracking accuracy is high, when equal calculated performance, effectively improves pupil tracking frame per second and tracking accuracy;
(9) measurement device comprises display device, not only shows pupil image, measurement result parameter, additionally provides pupil change curve intuitively, convenient operation person observation analysis;
(10) software system is by test experiments and clinical practice test, provides the standard reference frame of a set of pupillary light reflex parameter.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of description, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present utility model.Detailed description of the invention of the present utility model is provided in detail by following examples and accompanying drawing thereof.This utility model many places are only described the part making improvement, and other undeclared parts can realize by the state of the art, that is undeclared part is by existing techniques in realizing, is not described in detail at this.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining this utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is system structure schematic diagram of the present utility model.
Fig. 2 is surface structure schematic diagram of the present utility model.
Fig. 3 is pupil tracing measurement module structural representation of the present utility model.
Description of reference numerals:
1: shift knob; 2: stimulating light source knob; 3: pupil tracing button; 4: display screen; 5: grasping type device; 6,7: by location; 8,9: soft bumper ring; 10: single-chip microcomputer; 11: power supply; 12,13: infrared camera; 14,15: infrared illumination source; 16,17: stimulating light source.
Detailed description of the invention
Below in conjunction with drawings and Examples, technology implementation process of the present utility model is described further.
Embodiment 1:
The present embodiment illustrates system architecture of the present utility model.
By reference to the accompanying drawings 1, it is system structure schematic diagram of the present utility model, and system comprises grasping type binocular pupil detection apparatus imaging system and pupil tracing measurement module.Wherein, imaging system comprises two infrared cameras, two infrared illumination source, two stimulating light sources, grasping type equipment and single-chip microcomputers, infrared camera, lighting source, stimulating light source, single-chip microcomputer are integrated in grasping type device interior, camera is connected with single-chip microcomputer with light source, is responsible for the control of signal and the input and output of data by single-chip microcomputer; Pupil tracing measurement module is integrated in single-chip microcomputer, carries out tracking and measures, and carry out analyzing and processing to measurement result to the image of single-chip microcomputer collection, finally shows carrying on screen, also exports terminal to by wireless (as WIFI, bluetooth) or wired connection.
The lighting source of grasping type binocular pupil detection apparatus imaging system inside can be near infrared illumination source, near infrared illumination source by Single-chip Controlling, for imaging provides stable lighting environment; The spectrum of stimulating light source, brightness, stimulation time are changed by Operation system setting, as: stimulating light source selects green glow, brightness 1000mcd, stimulation time 400ms;
Measurement result display device is embedded on grasping type device, supports the display of pupil image and measurement result.
The output of pupil tracing measurement module supported data and the output of measurement report, export other terminal to by result, so that further inventory analysis.
By reference to the accompanying drawings 1, extraneous control inputs and record storage, report generation etc., also can be completed by the computer with memorizer.
Embodiment 2:
The present embodiment carries out on the basis of aforesaid embodiment 1, with previous embodiment 1 unlike, the surface structure of the present embodiment to this utility model system is described in detail.
By reference to the accompanying drawings 2, it is a kind of surface structure schematic diagram of the present utility model, comprises front view respectively, (Fig. 2 a) and top view (Fig. 2 b) for rearview.
This utility model is a kind of grasping type measurement device, comprises infrared camera 12,13 in grasping type equipment, and two cameras are independently directly controlled by single-chip microcomputer separately, complete image acquisition respectively, and are finally connected with pupil tracing measurement module; 2a by reference to the accompanying drawings, grasping type equipment top is measurement section, and bottom is handle.
In equipment, installation infrared lighting source 14,15, is opened by Single-chip Controlling, is arranged on the side of camera, the front of eyes, ensures that infrared illumination source drops on pupil inside in the bright spot that inside ofeye is formed, in order to avoid affect pupillometry precision;
Install stimulating light source 16,17 in equipment, stimulating light source is arranged on the opposite side of camera, just to eyes, by the stimulation time of the button control opening and closing on pupil tracing measurement module or equipment and stimulating light source.
Display screen 4 is installed, display screen display pupillometry software input picture, measurement result and measurement result change curve above the measurement section of equipment; This display screen, towards personnel such as doctors, is convenient to observe.
The handle position inside of equipment is provided with single-chip microcomputer 10 and power supply 11, single-chip microcomputer provides the running environment of pupil tracing Survey Software, be responsible for the input and output of camera control and collection, be responsible for the signal input of various light source, be responsible for the display driver etc. of display screen, be connected with infrared camera, light source, display screen with data wire by control line.Power supply 11 provides power supply to camera and single-chip microcomputer, also can be other light sources and provides power supply, and power supply supports alternating current charging, easy to use.
There is button 1,2,3 on the left of display screen and right side, and 1 is facility switching button, and 2 is stimulating light source knob, and 3 is pupil tracing button, and wherein stimulating light source knob and pupil tracing button respectively install one group about display screen, facilitate right-hand man all can operate.
System structure of the present utility model is light, small and exquisite, and user only need open facility switching, holds equipment handle, equipment is placed on person under inspection at the moment, there is pupil image in screen to be shown, press trace button and can start to measure, measurement result is presented on screen.User also can regulate the illumination of the time of stimulating light source and lighting source then to carry out tracking for different patient and measure.After having checked, result can be sent to other terminal, as printer, print audit report.
Embodiment 3:
The present embodiment carries out on the basis of aforesaid embodiment 1 or 2, carries out further perfect with previous embodiment unlike, the present embodiment to grasping type equipment.
Binocular pupillary light reflex tracking system comprises grasping type equipment, described grasping type equipment top is measurement section, bottom is handle, measurement section, handle all with built-in space, for installation infrared camera, infrared illumination source, single-chip microcomputer, stimulating light source, power supply; The handle position inside of grasping type equipment is provided with single-chip microcomputer and power supply; The measurement section front side surface of grasping type equipment is embedded with display screen, and display screen is connected with single-chip microcomputer; Display screen bottom right side has shift knob, and on the left of display screen and right side has stimulating light source knob, pupil tracing button respectively, and wherein stimulating light source knob and pupil tracing button respectively install one group about display screen; On rear side of the measurement section of grasping type equipment, embedded two are subject to inspection position, are soft bumper ring by examining around position; Each by above inspection position, the measurement section of grasping type equipment is provided with infrared camera, infrared illumination source, stimulating light source near the position of end face; Two cameras separate connection single-chip microcomputer separately; Two infrared illumination source are connected to single-chip microcomputer; Power supply is connected to infrared camera, single-chip microcomputer, infrared illumination source, infrared camera, stimulating light source.
In described system, device connects employing data wire.
Further, described system is also circumscribed with computer, printer.
Further, described system also comprises wireless signal transmission end.
Further, described grasping type equipment is furnished with packing crates, and arrange the foam pad of hollow in packing crates, space that hollow space is formed is slightly larger than grasping type equipment.
Further, a supporting frame used with described grasping type coordinative composition of equipments is also comprised.
Further, the roller of more than 3 and 3 is furnished with bottom described supporting frame.
Embodiment 4:
The present embodiment carries out on the basis of aforesaid embodiment 1 or 2 or 3, with previous embodiment unlike, stronger design has been done in the suitability of the present embodiment to grasping type equipment.
In order to make the suitability of grasping type equipment stronger, make following design.
Described handle is arranged charging inlet and statistical conversion port; Described handle is rectangle or square stiff shell, in each side of handle, has the salient line (sword) of vertical up/down perforation.
Described handle has supporting Mobile base, and Mobile base is configured to: comprise base, and base is rectangular, and respectively there is 1 spiral regulating device base corner, and spiral regulating device realizes the lifting at each angle, and heave amplitude is ± 20mm.Each spiral regulating device bottom is soft rubber pad, for anti-skidding and buffering.
Be la m at submounts, base is connected by slide rail, slide block with la m, coordinates the first handwheel, the first leading screw realizes la m horizontal cross back and forth movement on base;
Be top plate above la m, la m is connected by slide rail, slide block with top plate, by the second handwheel, the second leading screw, realizes the longitudinal back and forth movement of top plate level on la m;
At the end face of top plate, be welded with erection column, erection column bottom welding is on top plate, erection column top hollow, be formed with rectangle or square plug space, plug each side, space, with the groove of vertical up/down perforation, is with reeded plug space and handle suitable, realizes handle and slides in plug space and combine tight.
Further, a rectangle steel disc is stretched out at erection column upper position, rectangle steel disc horizontal positioned, be fixed on erection column by welding manner, the wide 1-2cm of rectangle steel disc, long 3-8cm, it screw of spinning in and out can support the first levelling tube that a horizontal cross places by two, be used to indicate level.By described screw, realize the calibration to levelling tube.Similar, on top plate, level is longitudinally provided with the second level pipe.
Further, salient line, groove are suitable, and can be semicircle, circular arc or triangle, length or the degree of depth be 5-55cm.
Further, described handle casing and erection column are that hard material is made, and can be 304 steel, also can be aluminium alloys.
Further, salient line, groove surfaces apply a small amount of lubricating oil.
Further, before measuring, handle is inserted plug space, by the spiral regulating device on adjusting base, make the first levelling tube and the second level pipe bubble between two parties, then regulate the first handwheel, the second handwheel, make grasping type equipment be in person under inspection's dead ahead, and then the spiral regulating device on adjusting base, make the first levelling tube and the second level pipe bubble placed in the middle.Person under inspection detects near grasping type equipment.
Further, regulate for realizing vertical height, make following design: erection column entirety is hollow structure, be formed with rectangle or square plug space, plug side, three, space is with the groove of vertical up/down perforation, at opposite side, vertically through fluting is set, slotting position level inserts a screw, one end that this screw stretches into erection column is semicircle spheroid, one end that this screw stretches out erection column comprises screw adjusting nut, the screens of screw on erection column can be realized by screwing adjusting nut, thus stop the downslide of handle in hollow structure, by this screw, realize the adjustment of handle being inserted to height and position.
Need to illustrate time, when to handle height and position seated regulate after, still need to make the first levelling tube and the second level pipe bubble placed in the middle.
Further, there is annular knurl on described screw adjusting nut surface, and knurl depth is 1mm.
Embodiment 5:
The present embodiment carries out on the basis of aforesaid embodiment 1 or 2 or 3 or 4, with previous embodiment unlike, the present embodiment designs pupil tracing measurement module.
By reference to the accompanying drawings 3, it is pupil tracing measurement module schematic diagram of the present utility model, after system module input pupil image, pupil threshold value is calculated by the threshold calculation module 01 based on pupil gray feature, based on pupil threshold value, fuzzy location Calculation is carried out by the fuzzy locating module of pupil barycenter 02 pair of pupil barycenter, draw the rough barycenter of pupil, the effectiveness of pupil barycenter is verified by pupil barycenter authentication module 03, if invalid, then follow the trail of failure, otherwise predict that pupil tracking module 04 predicts pupil region by pupil region, accurately pupil is located in estimation range, namely the accurate locating module of pupil barycenter 05 obtains accurate pupil center-of-mass coordinate, pupil barycenter is verified by pupil barycenter authentication module 06, if invalid, failure, otherwise enter pupil diameter computing module 07 and draw pupil diameter, namely a two field picture has been followed the trail of.All picture charge patterns in time to be detected complete, the analysis module of pupil tracing measurement module will draw measurement result to pupil data analyzing and processing, such as the parameter such as reaction of pupil to light incubation period, pupil contraction speed, pupil contraction ratio, then can analyze the state of an illness of testee further for measurement parameter.
It should be noted that, if want to draw pupil diameter change curve, need at least one pupil of continuous detecting to shake the cycle, to make data precision reliable.
This utility model improves prior art, therefore used for reference prior art in implementation process, as space is limited, is not described in detail prior art part; The NM technology part of every this utility model, all can adopt existing techniques in realizing.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. a binocular pupil is to light comprehensive detection system, it is characterized in that: system comprises grasping type equipment, described grasping type equipment top is measurement section, bottom is handle, measurement section, handle all with built-in space, for installation infrared camera, infrared illumination source, single-chip microcomputer, stimulating light source, power supply; The handle position inside of grasping type equipment is provided with single-chip microcomputer and power supply; The measurement section front side surface of grasping type equipment is embedded with display screen, and display screen is connected with single-chip microcomputer; Display screen bottom right side has shift knob, and on the left of display screen and right side has stimulating light source knob, pupil tracing button respectively, and wherein stimulating light source knob and pupil tracing button respectively install one group about display screen; On rear side of the measurement section of grasping type equipment, embedded two are subject to inspection position, are soft bumper ring by examining around position; Each by above inspection position, the measurement section of grasping type equipment is provided with infrared camera, infrared illumination source, stimulating light source near the position of end face; Two infrared cameras separate connection single-chip microcomputer separately; Two infrared illumination source are connected to single-chip microcomputer; Power supply is connected to infrared camera, single-chip microcomputer, infrared illumination source, stimulating light source; In described system, device connects employing data wire; Described system also comprises the Mobile base suitable with handle.
2. binocular pupil according to claim 1 is to light comprehensive detection system, it is characterized in that: described handle is rectangle or square stiff shell, in each side of handle, has the salient line of vertical up/down perforation and/or protruding sword; Described handle has supporting Mobile base, and Mobile base is configured to: comprise base, and base is rectangular, and respectively there is 1 spiral regulating device base corner, and heave amplitude is ± 20mm; Each spiral regulating device bottom is soft rubber pad; Be la m at submounts, base is connected by slide rail, slide block with la m, is combined with the first handwheel, the first leading screw; Be top plate above la m, la m is connected by slide rail, slide block with top plate, is combined with the second handwheel, the second leading screw; At the end face of top plate, be welded with erection column, erection column bottom welding is on top plate, erection column top hollow, be formed with rectangle or square plug space, plug each side, space, with the groove of vertical up/down perforation, is with reeded plug space and handle suitable, realizes handle and slides in plug space and combine tight.
3. binocular pupil according to claim 2 is to light comprehensive detection system, it is characterized in that: stretch out a rectangle steel disc at erection column upper position, rectangle steel disc horizontal positioned, be fixed on erection column by welding manner, the wide 1-2cm of rectangle steel disc, long 3-8cm, it screw of spinning in and out can support the first levelling tube that a horizontal cross places by two; Same, on top plate, level is longitudinally provided with the second level pipe.
4. binocular pupil according to claim 3 is to light comprehensive detection system, it is characterized in that: salient line, groove are suitable, and be semicircle, circular arc or triangle, length or the degree of depth are 5-55cm.
5. binocular pupil according to claim 4 is to light comprehensive detection system, it is characterized in that: described handle casing and erection column are that hard material is made, and hard material is 304 steel or aluminium alloy.
6. binocular pupil according to claim 5 is to light comprehensive detection system, it is characterized in that: salient line, groove surfaces apply a small amount of lubricating oil.
7. the binocular pupil according to any one of claim 2-6 is to light comprehensive detection system, it is characterized in that: erection column entirety is hollow structure, be formed with rectangle or square plug space, plug side, three, space is with the groove of vertical up/down perforation, in another side, arrange vertically through fluting, slotting position level inserts a screw, one end that this screw stretches into erection column is semicircle spheroid, and one end that this screw stretches out erection column comprises screw adjusting nut.
8. binocular pupil according to claim 7 is to light comprehensive detection system, it is characterized in that: there is annular knurl on described screw adjusting nut surface, and knurl depth is 1mm.
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| CN107536598A (en) * | 2016-06-29 | 2018-01-05 | 沈阳新松机器人自动化股份有限公司 | Binocular vision pupil positioning method and relevant device |
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| US9918629B2 (en) | 2014-02-11 | 2018-03-20 | Welch Allyn, Inc. | Fundus imaging system |
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| CN107536598A (en) * | 2016-06-29 | 2018-01-05 | 沈阳新松机器人自动化股份有限公司 | Binocular vision pupil positioning method and relevant device |
| US10602926B2 (en) | 2016-09-29 | 2020-03-31 | Welch Allyn, Inc. | Through focus retinal image capturing |
| US11172817B2 (en) | 2016-09-30 | 2021-11-16 | Welch Allyn, Inc. | Fundus image capture system |
| US10285589B2 (en) | 2016-09-30 | 2019-05-14 | Welch Allyn, Inc. | Fundus image capture system |
| US11096574B2 (en) | 2018-05-24 | 2021-08-24 | Welch Allyn, Inc. | Retinal image capturing |
| US11779209B2 (en) | 2018-05-24 | 2023-10-10 | Welch Allyn, Inc. | Retinal image capturing |
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