CN202437088U - Adjustable double-eye pupil diameter measuring instrument - Google Patents
Adjustable double-eye pupil diameter measuring instrument Download PDFInfo
- Publication number
- CN202437088U CN202437088U CN2012200128533U CN201220012853U CN202437088U CN 202437088 U CN202437088 U CN 202437088U CN 2012200128533 U CN2012200128533 U CN 2012200128533U CN 201220012853 U CN201220012853 U CN 201220012853U CN 202437088 U CN202437088 U CN 202437088U
- Authority
- CN
- China
- Prior art keywords
- illumination
- measuring instrument
- binocular
- sighting target
- lens barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Eye Examination Apparatus (AREA)
Abstract
The utility model relates to an adjustable double-eye pupil diameter measuring instrument and belongs to the technical field of a medical instrument. The adjustable double-eye pupil diameter measuring instrument comprises a double-eye check lens cone, an infrared micro-camera device, an illumination device, a photoelectric induction device, a sighting target adjusting rod, a sighting target, an optical reflection refraction device, an illumination adjusting device and a computer. The adjustable double-eye pupil diameter measuring instrument can be used for measuring two eyes at the same time, digitally regulating the quantity of light entering into the eyes, adjusting the illumination intensity around the eyes, causing the corresponding change of the pupils and quantitatively obtaining the prospective illumination intensity, thereby being beneficial to the dynamic observation for the change in pupil diameter when different illuminations and illumination states are abruptly changed. The adjustable double-eye pupil diameter measuring instrument can adjust a distance between sighting targets so as to measure the change in pupil diameter under different sighting states.
Description
Technical field
This utility model belongs to technical field of medical instruments; Relate in particular to a kind of adjustable binocular PD measuring instrument; It is a kind of light power that can regulate around eyes; Observe PD changes under the different lighting conditions PD dynamic monitoring and analytical equipment, this measuring instrument can also be observed PD variation under the different adjustment state through regulating the distance of sighting target.
Background technology
The meaning that PD is measured: PD receives emotion, light, looks the influence of many factors such as thing state, and the generation of numerous disease is often with the change of PD or the variation of pupil mobility.The PD measuring instrument is a kind of equipment that PD is measured that is used for, diagnosis and the auxiliary diagnosis that is mainly used in ophthalmic diseases as: in the diagnosis of glaucoma, corpus ciliare choroideae inflammation, cataract, optic neuropathy and the evaluation of retinal function; Also be applied to the diagnosis of Neurology Department surgical diseases, like optic neuropathy, tractus opticus pathological changes, lateral geniculate body to pretectal area pathological changes, Horner syndrome etc.The situation of change of PD also can have influence on visual quality and ophthalmologic operation effect.Therefore the evaluation of PD measurement and mobility is an important inspection of ophthalmic diseases and department of neurology medical diagnosis on disease.
The method that PD is measured and monitored: the way that PD is measured is a lot, the method that can simply adopt ruler to measure, but the objectivity and the accuracy of this method are not good enough, and the situation of description pupil that can only be static.Along with the development of camera technique, part scholar measures after adopting camera technique that pupil is taken pictures again, has improved objectivity and the accuracy measured, but has been difficult to continuous record; In addition the variation of ambient lighting also greatly degree influence the accuracy that PD is measured, especially in dim environment, observe very difficulty of PD.Along with the later stage in last century, the innovation of far-infrared technique and digitizing technique makes us get into a New Times to the observation and the measurement of PD.The pupil that utilizes far-infrared technique can observe dim environment changes, and utilizes the situation of change that the digitized video technology can the continuous record PD, and utilizes analysis software to measure.But PD is not static constant, but along with influence, the especially ambient lighting of many-sided factors such as environment, emotion, adjusting, illumination, ocular movement, whole body function and adjustment state are difficult to control to the diameter influences of pupil.This makes the PD between the Different Individual change lack comparability, even if when agreeing that experimenter's different time is checked, because the intensity of illumination of environment is different, the measured value of PD and changing value also all lack comparability.PD valuator device has in the past been introduced the analytical technology of far infrared continuous measurement, but fine control is failed in the change of the adjusting power of ambient lighting.
Summary of the invention
The purpose of this utility model is, designs a kind of adjustable binocular PD measuring instrument, and this measuring instrument can be regulated intensity of illumination, observes different illumination and perhaps sets under the situation of illumination condition flip-flop, and continuous observation analysis is carried out in the variation of PD; This measuring instrument is looked the distance of thing target through adjusting, thereby the PD variation that difference is looked under the thing state is measured.
This utility model solves the technical scheme that its technical problem adopted:
A kind of adjustable binocular PD measuring instrument, this measuring instrument include binocular inspection lens barrel, infrared micro-camera device, luminaire, photo-electric sensing equipment, sighting target adjusting rod, sighting target, optical reflection refracting means, illumination adjustments equipment, computer;
Described binocular inspection lens barrel is relatively independent enclosed cavity;
Said infrared micro-camera device is arranged in the binocular inspection lens barrel, is connected with computer;
Said luminaire is arranged between two lens barrels, optical reflection refracting means side;
Said photo-electric sensing equipment is arranged at the eye examination position in binocular vision mirror hole, and links to each other with computer, links to each other with illumination adjustments equipment through computer, forms the illumination looped system;
Said sighting target adjusting rod places the top of measuring instrument; Said sighting target places an end of sighting target adjusting rod;
Said optical reflection refracting means is arranged between the binocular inspection lens barrel;
Said illumination adjustments equipment links to each other with computer with luminaire;
Said computer includes illumination monitoring and control module, digital image acquisition analysis module.
One end of said binocular inspection lens barrel is provided with binocular vision mirror hole, and its other end is provided with corresponding image sight glass hole; Binocular vision mirror hole is processed by soft rubber cushion, with the around eyes skin attachement, forms airtight cavity.
Said luminaire adopts the LED illuminating lamp.
Said photo-electric sensing equipment is annular illumination meter.
Said sighting target is E word visual acuity chart or child's an image visual acuity chart.
This utility model is compared the beneficial effect that prior art reaches:
1, can measure simultaneously by eyes; Can carry out the amount of light that the digitized regulation and control get into ophthalmic; Regulate the partial intensity of illumination of around eyes; Cause the respective change of pupil, and can be quantitative the intensity of illumination of acquisition expection, thereby help dynamic PD variation when observing different illuminations and changing suddenly with illumination condition;
2. can regulate the distance of looking the thing target, thereby the PD variation that difference is looked under the thing state is measured.These two kinds of improvement to understand under the different light, under the different adjustment state, the sound attitude of PD changes and has very great help.
Description of drawings
Fig. 1 is that the structure of this utility model connects sketch map;
Fig. 2 is this utility model illumination regulation and control sketch map;
Fig. 3 is this utility model PD dynamic monitoring sketch map.
The specific embodiment
Referring to Fig. 1; A kind of adjustable binocular PD measuring instrument, this measuring instrument include 1 binocular inspection lens barrel, 2 infrared micro-camera devices, 3 luminaires, 4 photo-electric sensing equipments, 5 sighting target adjusting rods, 6 sighting targets, 7 optical reflection refracting means, 8 illumination adjustments equipment, 9 computers, 10 binocular vision mirror holes, 11 image sight glass holes.
Binocular inspection lens barrel light to external world forms local the isolation, helps forming relatively independent enclosed space, for the distribution and the adjusting of illuminating ray provides condition; Binocular inspection lens barrel one end is provided with binocular vision mirror hole, and the other end is provided with corresponding image observation port; Binocular vision mirror hole is processed by soft rubber cushion, can well with the around eyes skin attachement, form airtight cavity; The image observation port is positioned at the image side, and the passage open of light is to observe extraneous sighting target.
Infrared micro-camera device is positioned in the binocular inspection lens barrel, adopts infrared eye that eyes are made a video recording simultaneously, can illumination observe with the PD variation under the dark state; Image to pupil is taken continuously: 100 times/second, the image that obtains reaches computer system, carries out inventory analysis.
Luminaire adopts the stable LED illuminating lamp of illumination condition, is placed between two lens barrels optical reflection refracting means one side;
Photo-electric sensing equipment is annular illumination meter; Be arranged at the eye examination position in binocular vision mirror hole, measure the illumination at eyes position of living in, the numerical value of surveying links to each other with computer system; Link to each other with the adjusting device of illumination through computer system, form the illumination looped system.
The sighting target adjusting rod places the top of measuring instrument, and the length of sighting target bar is 1 meter, can regulate the sighting target distance in 1 meter scope continuously, thereby observes the pupil situation of regulating when changing.
The sighting target that is used for binocular vision places an end of sighting target adjusting rod, can place E word visual acuity chart or child's image visual acuity chart.
The optical reflection refracting means is positioned between the binocular inspection lens barrel, by in light uniform distribution to the binocular inspection lens barrel of optical fibers with illumination, forms relatively independent lighting space through spectroscope;
The illumination adjustments device is connected to computer system through the adjusting to resistance, changes the magnitude of current of illuminator, controls illuminance.
Computer system is the main hardware equipment of PD image viewing, processing, analysis, storage, comprises illumination monitoring and control module, digital image acquisition analysis module;
Illumination monitoring and control module: thus the ambient lighting situation that changes in the lens barrel is regulated in the brightness of illumination equipment light source, further changes the amount of light that gets into eye pupil; On the other hand through illumination meter monitoring illumination change; Signal feedback is arrived computer processing system; Can regulate lens barrel illumination that acquisition needs like different brackets illumination such as 0.1lux, 1lux, 10lux, set in the lens barrel illumination change as: 1500lux moment is reduced to 0.1lux with illumination;
The digital image acquisition analysis module: take continuously and measure through PD, analysis programme calculates, pupil of both eyes level footpath, vertical diameter, pupil area, pupil change curve, pupil contraction and diastolic time, pupil contraction and relaxation rate etc.
Referring to Fig. 2, illumination regulation and control sketch map, the light that the luminaire light source sends gets into the binocular vision lens barrel through light reflected refraction device; Illumination meter in the binocular vision lens barrel monitors illumination change; Send signal to computer and carry out the illumination regulation and control, the observer instructs to the illumination that computer sends expection, changes the electric weight of light source through the brightness regulating apparatus of luminaire light source; Thereby regulate the brightness of light source, reach the purpose that illumination in the lens barrel is observed in regulation and control.
Referring to Fig. 3; PD dynamic monitoring sketch map; The change of illumination or eyes " adjusting " state all can influence the change of PD, and this variation can be carried out continuous record through infrared high frequency camera shooting device; Then image is sent to the analysis that computer carries out PD, thereby calculates a series of indexs such as PD, pupil area, pupil contraction speed, pupil diastolic velocity.
Action principle:
This utility model can make up the confined space of local environment, regulates the illumination of subenvironment, causes that pupil changes, and it is monitored.PD is under the illumination of varying strength, and is also inequality, and as only having in the darkroom under the environment of 0.01lux, PD can reach 6-8mm, and can narrow down to 2-3mm at outdoor (1500-2000lux) of fine day PD.It is the luminous reflectance path regulation and control by pupil that PD changes, and light gets into amphiblestroid irradiation dose different, and PD is also different.This utility model is through the brightness of adjusting luminaire light source, and then the illumination of change around eyes environment, reaches the purpose of regulating the amount of light that shines eyes; This adjusting to local subenvironment light through the illumination meter monitoring, and is sent feedback signal to computer, adjusts through the brightness of the further illumination equipment of computer system light source, to obtain the illumination of expection.
Owing to detected object is eyes, to be the lighting environment that eyes make up myopia as possible therefore, so this utility model employing single light source, utilize the refractive method of optics beam split, light is divided into reciprocity two parts, make the illuminance of two lens barrels close.
This utility model adopts the high frequency-infrared camera head, makes that the image of PD is caught continuously, analyzes thereby help PD changed.
The principle that regulate to change: the normal eye is contracted pupil when seeing near thing, platycoria when seeing thing far away again.With the change of the power of adjusting, when watching infinity attentively, adjusting power is 0 simultaneously; Regulate power 1D during the target of watching 1m attentively, computing formula is: the distance (rice) of adjusting power=1/ object distance eyes.This utility model is through being placed with graduated adjusting rod above measuring instrument, thereby changes the distance of sighting target, and then reaches the variation that changes adjusting power.
Use operational approach:
1.
Preparatory stage:At first start computer during inspection, start luminaire light source and illumination meter.Regulating two distances between the inspection lens barrel center makes it to equate with experimenter's interpupillary distance.The experimenter with eyes near the binocular vision lens barrel; Owing to observe the sight glass hole of lens barrel is therefore can be pasted with the good exposure phase of around eyes skin by the soft ring that silica gel is processed; Form the cavity that seals, avoid extraneous light to get into the inspection lens barrel, eye's cornea surface and illumination meter are in one plane at this moment; The illumination of illumination meter record is suitable with the illumination that is irradiated into the eye line thus.
Let the experimenter watch long-range target attentively, the brightness of luminaire light source is transferred to minimum, the diameter of pupil under the record dark situation; Through regulating the brightness that improves illuminating lamp, observe the illumination numerical value of illumination meter simultaneously, when meeting the requirements of illumination, note PD this moment.This is the PD record under the static state.Also can the brightness of illuminating lamp be heightened by low, also can it be turned down by height, dynamic observe PD and change.When observing different gaze distance to the influencing of PD; Can realize through distance at sighting target bar adjusted sighting target; Both can be fixed on a certain distance and observe PD; Also can sighting target draw near or from the close-by examples to those far off process in, utilize high frequency camera shooting to observe the vary in diameter of pupil, go forward side by side line item and analysis.
2.
Illumination is regulated in light-source brightness and the lens barrel:The built-in illumination meter of inspection lens barrel can real time record be checked the illumination change in the lens barrel; Illumination meter is with the illumination data that records; Send to computer; The illumination control device is regulated, the brightness of control light source, and the light that the luminaire light source sends is evenly distributed in light in the lens barrel of both sides through the optical reflection refracting means and makes illuminance close; Avoid eyes to be in the different environment illumination condition, thereby influence the measurement of PD and the comparison between the different people.Get into lens barrel and form irreflexive illumination to illumination meter, lighting condition is sent to computer system once more by illumination meter record and formation electronic signal, makes illumination meter and houselights make up the feedback regulation loop through computer system.
3.
The monitoring of different illumination change PDs:At this moment the illumination that feedback control loop through this illuminance can obtain to expect can capture the image of pupil under this illumination through infrared eye, and the calculating through computer system can obtain the PD data under static.Also can be through the variation of Computer System Design illumination; Can be by dim → high light or by high light → dim; Through the built-in infrared eye of lens barrel; The situation of change of successive seizure PD PD when lighting environment changes, and can photograph the image of pupil in the darkroom continuously.
4.
The monitoring of the PD of different adjustment state:The external sighting target bar of inspection lens barrel, the sighting target bar can hang sighting target, and can regulate the distance of sighting target, thereby observes pupil and regulate the relation between changing; The experimenter observes the open lens barrel of lens barrel through image can observe characters displayed on the sighting target, and the position through moving target on the sighting target bar can obtain from 1 meter (regulating 1D) to 15cm (adjusting 7D).Utilize infrared eye can take the PD modified-image under the different adjustment state (looking object distance leaves) continuously,, obtain the continuous delta data of PD through the analysis of computer system.
Claims (5)
1. adjustable binocular PD measuring instrument; It is characterized in that this measuring instrument includes binocular inspection lens barrel, infrared micro-camera device, luminaire, photo-electric sensing equipment, sighting target adjusting rod, sighting target, optical reflection refracting means, illumination adjustments equipment, computer;
Described binocular inspection lens barrel is relatively independent enclosed cavity;
Said infrared micro-camera device is arranged in the binocular inspection lens barrel, is connected with computer;
Said luminaire is arranged between two lens barrels, optical reflection refracting means side;
Said photo-electric sensing equipment is arranged at an end in binocular vision mirror hole, and links to each other with computer, links to each other with illumination adjustments equipment through computer, forms the illumination looped system;
Said sighting target adjusting rod places the top of measuring instrument; Said sighting target places an end of sighting target adjusting rod;
Said optical reflection refracting means is arranged between the binocular inspection lens barrel;
Said illumination adjustments equipment links to each other with computer with luminaire;
Said computer includes illumination monitoring and control module, digital image acquisition analysis module.
2. a kind of adjustable binocular PD measuring instrument according to claim 1 is characterized in that, an end of said binocular inspection lens barrel is provided with binocular vision mirror hole, and its other end is provided with corresponding image sight glass hole; Binocular vision mirror hole is processed by soft rubber cushion, with the around eyes skin attachement, forms airtight cavity.
3. a kind of adjustable binocular PD measuring instrument according to claim 1 is characterized in that, said luminaire adopts the LED illuminating lamp.
4. a kind of adjustable binocular PD measuring instrument according to claim 1 is characterized in that said photo-electric sensing equipment is annular illumination meter.
5. a kind of adjustable binocular PD measuring instrument according to claim 1 is characterized in that said sighting target is E word visual acuity chart or child's an image visual acuity chart.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200128533U CN202437088U (en) | 2012-01-12 | 2012-01-12 | Adjustable double-eye pupil diameter measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200128533U CN202437088U (en) | 2012-01-12 | 2012-01-12 | Adjustable double-eye pupil diameter measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202437088U true CN202437088U (en) | 2012-09-19 |
Family
ID=46818545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200128533U Expired - Fee Related CN202437088U (en) | 2012-01-12 | 2012-01-12 | Adjustable double-eye pupil diameter measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202437088U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016131244A1 (en) * | 2015-07-10 | 2016-08-25 | 中兴通讯股份有限公司 | User health monitoring method, monitoring device, and monitoring terminal |
| CN111671392A (en) * | 2020-04-17 | 2020-09-18 | 华中科技大学同济医学院附属协和医院 | Automatic pupil observation device and method |
| CN114903427A (en) * | 2022-04-24 | 2022-08-16 | 温州医科大学附属眼视光医院 | Pupil diameter detecting instrument |
-
2012
- 2012-01-12 CN CN2012200128533U patent/CN202437088U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016131244A1 (en) * | 2015-07-10 | 2016-08-25 | 中兴通讯股份有限公司 | User health monitoring method, monitoring device, and monitoring terminal |
| CN106333643A (en) * | 2015-07-10 | 2017-01-18 | 中兴通讯股份有限公司 | Monitor method, monitor device and monitor terminal for user health |
| CN111671392A (en) * | 2020-04-17 | 2020-09-18 | 华中科技大学同济医学院附属协和医院 | Automatic pupil observation device and method |
| CN114903427A (en) * | 2022-04-24 | 2022-08-16 | 温州医科大学附属眼视光医院 | Pupil diameter detecting instrument |
| CN114903427B (en) * | 2022-04-24 | 2024-09-17 | 温州医科大学附属眼视光医院 | Pupil diameter detecting instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6159263B2 (en) | Optical measurement apparatus and method for adjusting illumination characteristics and capturing at least one parameter in at least one eye | |
| CN104412149B (en) | Device and method for measuring personal objective refraction of eye and at least one geometric shape parameter | |
| JP2014508015A5 (en) | ||
| US20210212601A1 (en) | System and Methods for Dynamic Position Measurement of Ocular Structures | |
| CN104068827A (en) | Self-service eye comprehensive detection method and detection equipment | |
| US20160310000A1 (en) | Phoropter system and method of use | |
| Schaeffel | Binocular lens tilt and decentration measurements in healthy subjects with phakic eyes | |
| CN104490359A (en) | Portable device for generally surveying eyesight of children | |
| CN202437088U (en) | Adjustable double-eye pupil diameter measuring instrument | |
| CN204723023U (en) | A kind of Wearable pupillary light reflex measurement device | |
| CN100528070C (en) | Perimeter | |
| CN108542346A (en) | A kind of automatic retinoscopy optometry optical system | |
| US20220039649A1 (en) | Method and device for determining a refraction feature of an eye of a subject | |
| CN209285467U (en) | A kind of eyesight detection device based on eccentricity cycles principle | |
| CN109303544B (en) | Multi-scale mixed vision disorder analyzer and analysis method thereof | |
| CN208837912U (en) | A kind of optometry unit of measurable crystalline lens adjusting force | |
| TW202015613A (en) | Fundus camera and method for self-shooting fundus | |
| CN108478187A (en) | A kind of eyesight detection device based on eccentricity cycles principle | |
| CN210810960U (en) | Diagnostic device of intelligent screening strabismus and diopter | |
| CN204744101U (en) | Hand -held type independently looks force measuring device | |
| NL2035161B1 (en) | Method to measure variable lens power | |
| CN112754418A (en) | Portable binocular vision function training instrument | |
| CN111839454A (en) | Multifunctional portable ophthalmology inspection tester and remote medical management network | |
| CN115113389B (en) | Tear film stability synchronous real-time analysis system and optical path construction method | |
| CN109674442A (en) | A kind of self-service vision drop system and device containing built-in light source |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20150112 |
|
| EXPY | Termination of patent right or utility model |