CN109008937A - Method for detecting diopter and equipment - Google Patents
Method for detecting diopter and equipment Download PDFInfo
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- CN109008937A CN109008937A CN201810837224.6A CN201810837224A CN109008937A CN 109008937 A CN109008937 A CN 109008937A CN 201810837224 A CN201810837224 A CN 201810837224A CN 109008937 A CN109008937 A CN 109008937A
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- 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
- A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient
- A61B3/028—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters
- A61B3/0285—Phoropters
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- 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
- A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient
- A61B3/028—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters
- A61B3/032—Devices for presenting test symbols or characters, e.g. test chart projectors
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Abstract
The present invention provides a kind of method for detecting diopter and equipment, and described method includes following steps: the first image being presented on device screen；Measured is obtained in response to external operation at a distance from the device screen；The diopter of measured is determined according to the distance.The method for detecting diopter and equipment provided according to the present invention can be completed by common smart machine, and not need professional's interference, carried out operation by user oneself and detected itself diopter, have stronger convenience.
Description
Technical field
The present invention relates to Analysis of Medical Treatment Data fields, and in particular to a kind of method for detecting diopter and equipment.
Background technique
With the development of modern economy, the progress of education, various smart machines are popularized, and near-sighted number increases year by year,
And constantly develop to becoming younger, so low cost, the near-sighted diagnostic method importance that can be popularized is self-evident, especially
For teenager.
In general, in ophthalmologic hospital and matching mirror center, the equipment that optist can use profession passes through measurement diopter judgement
Human eye ball whether myopia and myopia degree.But under normal circumstances, people are just determined when finding that eyes go wrong
The mechanism of profession is gone to go optometry.Single needle is for myopia.It is understood that teenager is used due to fatigue if not congenital myopia
Eye, frequent close eye can first lead to pseudo-myopia, be further development of very near-sighted.Pseudo-myopia is can to pass through the modern times
What medical means were restored.And myopia can only pass through wearing spectacles or operative treatment.So if there is method can allow blueness few
Year usually can easily detect whether myopia, and the meaning for preventing adolescent myopia is huge.Meanwhile often measurement
Diopter can also help near-sighted people to control near-sighted development.
There are three types of existing diopter detection modes, i.e. subjective refraction, retinoscopy optometry and computerized optometry.Order of accuarcy is successively
Successively decrease.In hospital or match mirror center, usually uses computerized optometry initial survey, subjective refraction determines actual diopter.It is right separately below
Three kinds of methods are briefly introduced.
Subjective refraction is using a series of lens of different diopters, and under the cooperation of patient, make repeated attempts different diopters
Lens so that patient restores normal visual acuity by lens.Subjective refraction needs that visual chart is cooperated to use, and patient needs
Certain distance is kept with visual chart, specific value depends on visual chart and calculation method, and usually six meters, and the light in room
It is comfortable.
Shadow test is that Ray Of Light is projected patient's eye dioptric system with skiascope to go directly retina, then by retina
Reflected light arrives at skiascope, passes through skiascope peephole (referred to as inspection shadow hole), is observed by optist.This retinal reflex light is
" reflection to red light " is the main foundation for examining shadow analysis.Patient's refractive status is different, and what is formed by reflection to red light is suitable dynamic, inverse
It is dynamic also different.Optist analyzes this different shadow and moves, and it is dynamic to clear up shadow that corresponding eyeglass is taken out in standard eye-detecting lens box, until finding
The point of neutralization.For find the point of neutralization standard eyeglass and patient refractive status it is closely related.Shadow test is also known as retinoscopy
Method, skiascope are also known as the retinoscope.
Computerized optometry belongs to objective optometry, and principle is essentially identical with sciascopia, using infrared light sources and
Automatic mist view apparatus achievees the purpose that loosen eyeball adjusting, using photoelectric technology and automatic control technology inspection diopter.
The common trait of existing three kinds of modes are as follows: need special equipment, professional person is needed to assist.It can be seen that
Existing diopter detection mode convenience is poor.
Summary of the invention
In view of this, the present invention provides a kind of method for detecting diopter, comprising:
The first image is presented on device screen；
Measured is obtained in response to external operation at a distance from the device screen；
The diopter of measured is determined according to the distance.
It is optionally, described that measured is obtained in response to external operation at a distance from the device screen, comprising:
The binocular camera shooting device at the screen is controlled in response to external operation shoots the second image and third image；
According to the content of the parameter of binocular camera shooting device and second image and third image determine measured with it is described
The distance of device screen.
Optionally, it is described according to the parameter of binocular camera shooting device and the content of second image determine measured with it is described
The distance of device screen, comprising:
The target image of measured is identified from second image and third image respectively；
Position of the target image in second image and third image is determined respectively；
Determine measured at a distance from the device screen according to the parameter of the position and the binocular camera shooting device.
Optionally, the diopter D of measured is determined using following formula:
Wherein l is the spacing of two cameras of the binocular camera shooting device, f1And f2For the ginseng of the binocular camera shooting device
Number, d1It is measured's face object image in second image at a distance from the center of second image, d2It is described
Measured's face object image in three images is at a distance from the center of the third image.
It is optionally, described that measured is obtained in response to external operation at a distance from the device screen, comprising:
Electromagnetic distance measurement device transmitting electromagnetic wave is controlled in response to external operation and receives the electromagnetic wave of reflection；
Determine measured at a distance from the device screen according to the electromagnetic wave of the electromagnetic wave of transmitting and reflection.
Optionally, the diopter D of measured is determined using following formula:
Wherein C is the light velocity, and T is that the radar installations at the screen is anti-to measured is received from emitting electromagnetic wave
The time for the electromagnetic wave penetrated.
Optionally, the diopter D of measured is determined using following formula:
Wherein, λ is the wavelength of the electromagnetic wave,For at the screen radar installations transmitting electromagnetic wave with
Receive the phase difference of the electromagnetic wave of measured's reflection.
Optionally, the diopter D of measured is determined using following formula:
Wherein C is the light velocity, and Ta1 is the time of the first radar installations the first electromagnetic wave of sending at the screen, Tb1
The time of first electromagnetic wave is received for the second radar installations at measured, Tb2 is second radar installations
The time of the second electromagnetic wave is issued after receiving first electromagnetic wave, Ta2 is described in first radar installations receives
The time of second electromagnetic wave.
Optionally, before obtaining the step of measured is at a distance from the device screen in response to external operation described,
Further include:
Prompt information is presented on device screen, the prompt information is for prompting measured that can see described first clearly
The external operation is executed in the case where image；And/or prompt adjusts the mode of distance between the screen and measured.
Correspondingly, the present invention also provides a kind of electronic equipment, comprising: screen, range unit, at least one processor and
The memory being connect at least one described processor communication；Wherein, the screen is for showing the first image, the ranging dress
Set for measure measured between the screen at a distance from, the memory, which is stored with, to be executed by least one described processor
Instruction, described instruction executed by least one described processor, so that at least one described processor executes above-mentioned diopter
Detection method.
The method for detecting diopter and equipment provided according to the present invention, by presenting on device screen for detecting dioptric
The image of degree, and by user's autonomous operation equipment, measured is obtained when image can be seen clearly currently at a distance from screen, in turn
The diopter of measured's eyes is calculated by distance, which can be completed by common electronic equipment, and is not required to
It wants professional to interfere, is operated by user oneself, there is stronger convenience.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the flow chart of method for detecting diopter provided in an embodiment of the present invention；
Fig. 2 is the first image in the embodiment of the present invention；
Fig. 3 is the schematic diagram of a scenario that user is using method for detecting diopter provided by the invention；
Fig. 4 is the flow chart of the method for detecting diopter provided in an embodiment of the present invention based on binocular camera shooting equipment；
Fig. 5 is the schematic diagram of a scenario for shooting measured's face；
Fig. 6 is the flow chart of the method for detecting diopter provided in an embodiment of the present invention based on radar or laser equipment.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
The embodiment of the present invention provides a kind of method for detecting diopter, and this method can be had by smart phone, tablet computer etc.
There is the electronic equipment of photographic device to execute, for user from diopter is surveyed, as shown in Figure 1, this method comprises the following steps:
The first image is presented in S1 on device screen, the image can be exclusively used in used in medical domain check bend
The image of luminosity or astigmatism, picture material is readily able to user's subjectivity and differentiates whether eyes focus, such as figure shown in Fig. 2
Picture.It can be it will be understood by those skilled in the art that the content of the first image is not limited to content shown in Fig. 2, when practical application
Multiple similar images for user selections are stored in equipment to use.
The size and resolution ratio of image should be predefined according to the parameter of display screen, need to make user apart from farther out
Position cannot see the content of the first image clearly completely, and the content of the first image can be seen clearly in short distance.
S2 obtains measured in response to external operation at a distance from the device screen, and user is provided using the present invention
Scheme when be understood that mode of operation, that is, need user to cover one eye eyeball, and by unshaded eyes viewing screen
The first image presented, while from far to nearby moving or screen, so that the first image is gradually close to eyes.In user
Control range unit obtains the current user at a distance from screen when can see the first image clearly just.
It is so-called see the pattern referred on picture clearly and be incident on eyes can assemble on the retina just, what user experienced is
Under this distance, clear-cut margin in image, and even if user draws closer together, the sharp keen sense at edge not will increase, this journey
Degree needs to carry out subjective judgement by user, can obtain distance when reaching quoad hoc when assert.
There are many modes for obtaining distance, and different modes is needed by corresponding equipment.Such as it can be taken the photograph using binocular
As head carries out ranging by shooting image, or using laser equipment, radar equipment by the transmitting of photosignal with reflect into
Row ranging.
S3 determines the diopter of measured according to the distance of acquisition.It will be understood by those skilled in the art that in medical domain
In, the diopter of eyes is 0, indicates that parallel incident light can converge on retina just, also meaning that can see
The object of clear infinity.For normal adult, diopter is all that emmetropia is (not near-sighted also not far between positive and negative 0.75
Depending on twenty-twenty vision), for minor, the emmetropia power range of all ages and classes is different.
When diopter sees object clearly equal to people just, inverse of the object away from human eye distance.As shown in figure 3, need to only measure quilt
The distance between survey person 32 and device screen 31 h can calculate diopter.Such as corresponding 1.33 meters of diopter 0.75, indicate for
If adult sees that the object outside 1.33 meters is very clear, it is shown to be emmetropia.If 0.5 meter away from human eye of object can just see clearly
(clear-cut margin does not have ghost image), then diopter is 2, if wearing near-sighted glasses correction, corresponding near-sighted glasses degree is 200 degree.
The method for detecting diopter provided according to embodiments of the present invention, by presenting on device screen for detecting dioptric
The image of degree, and by user's autonomous operation equipment, measured is obtained when image can be seen clearly currently at a distance from screen, in turn
The diopter of measured's eyes is calculated by distance, which can be completed by common electronic equipment, and is not required to
It wants professional to interfere, is operated by user oneself, there is stronger convenience.
In order to guide user correctly to operate detection process, some prompt letters can also be presented before above-mentioned steps S2
Breath, such as the opportunity of measurement distance can be prompted, i.e. in the case where that can see the first image clearly, control is set prompt detected person
Standby measurement distance；The mode of distance between adjustment screen and detected person can also be prompted simultaneously, such as prompt user should be by remote
Place is to nearby moving screen.
Specifically can by way of explanatory note, the mode that the mode of flash demo or the two combine mentioned
Show.
It shows that the operating efficiency of user and the accuracy of detection can be improved in prompt information, but is not necessarily examining every time
It is prompted, such as can only be prompted when using for the first time, or user demand is answered to select to carry out according to user before surveying
Prompt, naturally it is also possible to be checked at any time as help text for user.
Another embodiment of the invention additionally provides a kind of method for detecting diopter based on binocular camera shooting equipment, binocular
Picture pick-up device can be wholely set with the equipment for executing this method, such as can be smart phone, plate with dual camera
Apparatus such as computer.Binocular camera shooting equipment can also connect with the equipment split settings of execution this method, e.g. a smart phone
Connect a binocular camera shooting equipment.As shown in figure 4, this method comprises the following steps:
The first image is presented in S11 on device screen, is detailed in above-mentioned steps S1；
S12 controls the binocular camera shooting device at screen in response to external operation and shoots the second image and third image,
Namely the image of same target captured by two cameras.User is understood that operation when using scheme provided by the invention
Mode needs user to cover one eye eyeball, and passes through the first image presented on unshaded eyes viewing screen, while by
Far to nearby moving or screen, so that the first image is gradually close to eyes.The first figure can be seen clearly just in measured
As when control be located at screen at binocular camera shooting device shoot by image, captured object should be measured, e.g. entirely
Body, face or eyes image；
S13, according to the content of the parameter of binocular camera shooting device and the second image and third image determine measured with it is described
The distance of device screen.According to the range measurement principle of binocular camera shooting device it is known that need to only match the same mesh in two images
Mark, can calculate the target at a distance from equipment room, which can be with the head of measured, face according to equipment parameter itself
The contents such as feature.
S14 determines the diopter of measured according to the distance of acquisition.This step can refer to above-mentioned steps S3.
The embodiment of the present invention measures measured at a distance from screen by taking pictures using binocular camera shooting device, so according to away from
From the diopter for calculating measured, the operation of measurement diopter is realized using housed device, easy to operate, equipment cost is low, tool
There is stronger convenience.
Specifically, above-mentioned steps S13 may include:
S131 identifies the target image of measured from second image and third image respectively, and target image is for example
It is head phantom, face organ's image.There are many identification methods, and machine vision technique can be used for example, according in image
Linear feature identifies setting target, or can also use trained neural network mould by the way of artificial intelligence
Type identifies setting target.
It will be understood by those skilled in the art that then needing to construct using a large amount of training datas using the mode of machine learning
Model constructs the image data collection containing portrait in advance, and marks target image (head phantom, face organ's image) work
For the label of picture.
Image data collection it is practical can also to generate simulation by computer by taking pictures to obtain to the people for blocking eyes
The picture of scene.The identification model built with image data collection and label training, enables model to identify the mesh in logo image
Mark image.
Identification model can be realized with convolutional neural networks, with a large amount of image data collection for simulating actual scenes and accordingly
Target information trains neural network, can identify the target image of subject in reality scene.
S132, determines position of the target image in second image and third image respectively, which is to match
Operation, position therein can be target image at a distance from center picture or be target image at a distance from image edge
Etc.；
S133 determines measured at a distance from screen according to the parameter of determining position and binocular camera shooting device.
Correspondingly, the diopter D of measured is calculated as follows:
Fig. 5 is the schematic diagram of a scenario for shooting measured's face, and wherein target A is the face object of measured, such as eyes
Or nose.H is the distance to be calculated, and l is the spacing of two cameras of binocular camera shooting device, f1And f2For binocular camera shooting dress
The parameter set, the parameter are the natural parameters of camera, can be obtained by measurement, details are not described herein again.d1It is in the second image
Face object image A1With the center C of the second image1Distance, d2It is the face object image A in third image2With third
The center C of image2Distance.
The present embodiment calculates face object at a distance from screen using the face object of measured as matching object,
Thus obtained diopter is more accurate.
Another embodiment of the invention additionally provides a kind of method for detecting diopter based on radar or laser equipment, thunder
Reach or laser equipment can with execute this method equipment be wholely set, can also with execute this method equipment split settings,
E.g. a smart phone connects a radar or laser equipment.As shown in fig. 6, this method comprises the following steps:
The first image is presented in S21 on device screen, is detailed in above-mentioned steps S1；
S22 controls electromagnetic distance measurement device transmitting electromagnetic wave in response to external operation and receives the electromagnetic wave of reflection.Electromagnetism
Wave ranging device can be Laser Distance Measuring Equipment or radar ranging equipment, and such equipment has been commonly used for sphere of life, example
Such as radar equipment used on vehicle, it is relatively low cost and easy to obtain and uses.User is using scheme provided by the invention
When be understood that mode of operation, that is, need user to cover one eye eyeball, and by presenting on unshaded eyes viewing screen
First image, while from far to nearby moving or screen, so that the first image is gradually close to eyes.It is lucky in measured
Control is located at the electromagnetic distance measurement device transmitting electromagnetic wave at screen when can see the first image clearly, and the target for emitting electromagnetic wave is answered
When being measured, and by measured's reflection electromagnetic wave, which needs user's Attended Operation, should be guaranteed that electromagnetic wave in ranging
Distance-measuring equipment is towards measured, to ensure the accuracy of measurement result.
S23 determines that measured at a distance from device screen, specifically calculates according to the electromagnetic wave of the electromagnetic wave of transmitting and reflection
There are many modes, such as can be calculated according to the journey time difference or phase difference of two electromagnetic waves.
S24 determines the diopter of measured according to the distance of acquisition.This step can refer to above-mentioned steps S3.
The embodiment of the present invention determines measured and screen by emitting and receiving electromagnetic wave using radar or laser equipment
Distance, and then according to distance calculate measured diopter, utilize lifestyle device realize measurement diopter operation, operation letter
List, equipment cost are low, have stronger convenience.
As the first optional embodiment, above-mentioned steps S24 can calculate the dioptric of measured in the following way
Spend D:
Wherein C is the light velocity, T be radar installations at screen from emit electromagnetic wave to receiving what measured was reflected
The time of electromagnetic wave.
The present embodiment use with electromagnetic radiation receive capabilities device, device transmitting electromagnetic wave encounter people when
Transmitting position is reflected and returned to, is determined by measuring electromagnetic wave from the time difference being emitted to during being reflected back origin-location
The diopter of measured, above embodiment only need to dependences using a radar installations as range unit, to equipment performance
Degree is lower, and calculation amount is smaller, has stronger convenience.
As second of optional embodiment, above-mentioned steps S24 can calculate the dioptric of measured in the following way
Spend D:
Wherein, λ is the wavelength of electromagnetic wave,It is tested for the electromagnetic wave and reception of the radar installations transmitting at screen
The phase difference of the electromagnetic wave of person's reflection.
The present embodiment use with electromagnetic radiation receive capabilities device, device transmitting electromagnetic wave encounter people when
Transmitting position is reflected and returned to, is measured by measuring electromagnetic wave from the phase difference being emitted to during being reflected back origin-location
The diopter of measured, lower to the degree of dependence of equipment performance, calculation amount is smaller, has stronger convenience.
As the third optional embodiment, above-mentioned steps S24 can calculate the dioptric of measured in the following way
Spend D:
Wherein C is the light velocity, and Ta1 is the time of the first radar installations the first electromagnetic wave of sending at screen, and Tb1 is position
The second radar installations at measured receives the time of the first electromagnetic wave, and Tb2 is that the second radar installations is receiving first
The time of the second electromagnetic wave is issued after electromagnetic wave, Ta2 is the time that the first radar installations receives the second electromagnetic wave.
The present embodiment is using multiple (two) devices with electromagnetic radiation receive capabilities, the electromagnetic wave that device one emits
It is received in the device two carried on encountering the person, device two emits electromagnetic wave to device one again after receiving electromagnetic wave, calculates
The diopter of measured can be calculated in the electromagnetic transmission time during this, and calculation amount is smaller and accuracy rate is higher, tool
There is stronger convenience.
Another embodiment of the invention also provides a kind of electronic equipment, comprising: screen, range unit, at least one
Reason device and the memory being connect at least one described processor communication；Wherein, the screen is for showing the first image, institute
State range unit for measure measured between the screen at a distance from, the memory is stored with can be by described at least one
The instruction that device executes is managed, described instruction is executed by least one described processor, so that at least one described processor executes
State the method for detecting diopter in any embodiment.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of method for detecting diopter characterized by comprising
The first image is presented on device screen；
Measured is obtained in response to external operation at a distance from the device screen；
The diopter of measured is determined according to the distance.
2. obtaining measured in response to external operation the method according to claim 1, wherein described and being set with described
The distance of standby screen, comprising:
The binocular camera shooting device at the screen is controlled in response to external operation shoots the second image and third image；
Measured and the equipment are determined according to the content of the parameter of binocular camera shooting device and second image and third image
The distance of screen.
3. according to the method described in claim 2, it is characterized in that, described according to the parameter of binocular camera shooting device and described second
The content of image determines measured at a distance from the device screen, comprising:
The target image of measured is identified from second image and third image respectively；
Position of the target image in second image and third image is determined respectively；
Determine measured at a distance from the device screen according to the parameter of the position and the binocular camera shooting device.
4. according to the method described in claim 3, it is characterized in that, determining the diopter D of measured using following formula:
Wherein l is the spacing of two cameras of the binocular camera shooting device, f1And f2For the parameter of the binocular camera shooting device,
d1It is measured's face object image in second image at a distance from the center of second image, d2It is the third
Measured's face object image in image is at a distance from the center of the third image.
5. obtaining measured in response to external operation the method according to claim 1, wherein described and being set with described
The distance of standby screen, comprising:
Electromagnetic distance measurement device transmitting electromagnetic wave is controlled in response to external operation and receives the electromagnetic wave of reflection；
Determine measured at a distance from the device screen according to the electromagnetic wave of the electromagnetic wave of transmitting and reflection.
6. according to the method described in claim 5, it is characterized in that, determining the diopter D of measured using following formula:
Wherein C is the light velocity, T be radar installations at the screen from emit electromagnetic wave to receiving what measured was reflected
The time of electromagnetic wave.
7. according to the method described in claim 5, it is characterized in that, determining the diopter D of measured using following formula:
Wherein, λ is the wavelength of the electromagnetic wave,Electromagnetic wave and reception for the radar installations transmitting at the screen
The phase difference of the electromagnetic wave of measured's reflection.
8. according to the method described in claim 5, it is characterized in that, determining the diopter D of measured using following formula:
Wherein C is the light velocity, and Ta1 is the time of the first radar installations the first electromagnetic wave of sending at the screen, and Tb1 is position
The second radar installations at measured receives the time of first electromagnetic wave, and Tb2 is that second radar installations is connecing
The time that the second electromagnetic wave is issued after first electromagnetic wave is received, Ta2 is that first radar installations receives described second
The time of electromagnetic wave.
9. the method according to claim 1, wherein it is described obtain in response to external operation measured with it is described
Device screen apart from the step of before, further includes:
Prompt information is presented on device screen, the prompt information is for prompting measured that can see the first image clearly
In the case where execute the external operation；And/or prompt adjusts the mode of distance between the screen and measured.
10. a kind of electronic equipment characterized by comprising screen, range unit, at least one processor and with it is described extremely
The memory of few processor communication connection；Wherein, the screen is for showing the first image, and the range unit is for surveying
Measure measured between the screen at a distance from, the memory be stored with can by least one described processor execute instruction,
Described instruction is executed by least one described processor, so that any at least one described processor perform claim requirement 1-9
Method for detecting diopter described in.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111281331A (en) * | 2020-04-02 | 2020-06-16 | 京东方科技集团股份有限公司 | Vision detection method and device and wearable display device |
| CN112120666A (en) * | 2020-10-14 | 2020-12-25 | 上海爱尔眼科医院有限公司 | Lens refractive power measuring and calculating method, device, equipment and storage medium |
| CN114202499A (en) * | 2021-06-22 | 2022-03-18 | 深圳盛达同泽科技有限公司 | Refractive information measuring method, device and computer readable storage medium |
| CN115813330A (en) * | 2023-02-22 | 2023-03-21 | 北京鹰瞳科技发展股份有限公司 | Human eye diopter detection method and device, electronic equipment and medium |
| CN112120666B (en) * | 2020-10-14 | 2024-06-11 | 上海爱尔眼科医院有限公司 | Lens refractive power measuring and calculating method, device, equipment and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160056159A (en) * | 2014-11-11 | 2016-05-19 | 지경민 | Method for heterophoria measuring |
| CN105764405A (en) * | 2013-06-06 | 2016-07-13 | 6超越6视觉有限公司 | System and method for measurement of refractive error of eye based on subjective distance metering |
| CN106950716A (en) * | 2017-05-17 | 2017-07-14 | 珠海随变科技有限公司 | A kind of method and system that ophthalmic len number of degrees measurement is carried out by mobile phone photograph |
| CN107532881A (en) * | 2015-05-15 | 2018-01-02 | 华为技术有限公司 | The method and terminal of a kind of measurement |
| WO2018050778A1 (en) * | 2016-09-15 | 2018-03-22 | Essilor International | Measurement method for the determination of a value of a visual correction need for near vision of an individual |
| CN107890336A (en) * | 2017-12-05 | 2018-04-10 | 中南大学 | Diopter detecting system based on intelligent handheld device |
-
2018
- 2018-07-26 CN CN201810837224.6A patent/CN109008937A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105764405A (en) * | 2013-06-06 | 2016-07-13 | 6超越6视觉有限公司 | System and method for measurement of refractive error of eye based on subjective distance metering |
| KR20160056159A (en) * | 2014-11-11 | 2016-05-19 | 지경민 | Method for heterophoria measuring |
| CN107532881A (en) * | 2015-05-15 | 2018-01-02 | 华为技术有限公司 | The method and terminal of a kind of measurement |
| WO2018050778A1 (en) * | 2016-09-15 | 2018-03-22 | Essilor International | Measurement method for the determination of a value of a visual correction need for near vision of an individual |
| CN106950716A (en) * | 2017-05-17 | 2017-07-14 | 珠海随变科技有限公司 | A kind of method and system that ophthalmic len number of degrees measurement is carried out by mobile phone photograph |
| CN107890336A (en) * | 2017-12-05 | 2018-04-10 | 中南大学 | Diopter detecting system based on intelligent handheld device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111281331A (en) * | 2020-04-02 | 2020-06-16 | 京东方科技集团股份有限公司 | Vision detection method and device and wearable display device |
| WO2021196992A1 (en) * | 2020-04-02 | 2021-10-07 | 京东方科技集团股份有限公司 | Visual acuity measurement method and apparatus, and wearable display device |
| CN112120666A (en) * | 2020-10-14 | 2020-12-25 | 上海爱尔眼科医院有限公司 | Lens refractive power measuring and calculating method, device, equipment and storage medium |
| CN112120666B (en) * | 2020-10-14 | 2024-06-11 | 上海爱尔眼科医院有限公司 | Lens refractive power measuring and calculating method, device, equipment and storage medium |
| CN114202499A (en) * | 2021-06-22 | 2022-03-18 | 深圳盛达同泽科技有限公司 | Refractive information measuring method, device and computer readable storage medium |
| CN114202499B (en) * | 2021-06-22 | 2022-09-09 | 深圳盛达同泽科技有限公司 | Method and device for measuring refractive information and computer readable storage medium |
| CN115813330A (en) * | 2023-02-22 | 2023-03-21 | 北京鹰瞳科技发展股份有限公司 | Human eye diopter detection method and device, electronic equipment and medium |
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