CN102764106A - System and method for examining vision function - Google Patents
System and method for examining vision function Download PDFInfo
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- CN102764106A CN102764106A CN2011101120685A CN201110112068A CN102764106A CN 102764106 A CN102764106 A CN 102764106A CN 2011101120685 A CN2011101120685 A CN 2011101120685A CN 201110112068 A CN201110112068 A CN 201110112068A CN 102764106 A CN102764106 A CN 102764106A
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Abstract
The invention discloses a system and a method for examining a vision function, which relates to the field of optical instruments and aims to solve a problem of examining the vision function of the eyes of a patient synchronously; the system is composed of a memory, a display drive and a display screen; sighting target electronic information needed for dichoptic viewing of the left eye and the right eye of the patient is taken out of the memory by the display drive; the display screen is driven to display the sighting target electronic information in different interlacing polarization methods respectively; the patient is made to wear a pair of glasses which have different polarization examining directions of a left lens and a right lens; sighting targets on the display screen are observed synchronously by two eyes, thus, synchronous examination of two eyes of the vision function can be realized; or the sighting target electronic information is displayed in an inter-frame method; the patient is made to wear a pair of synchronous glasses so as to observe inter-frame pictures correspondingly to different sighting targets of the left eye and the right eye; a synchronous transceiver is also arranged so that the left lens and the right lens of the glasses are synchronous to corresponding frame pictures; and a direct control or remote control device is also arranged and is convenient to operate the system. According to the invention, the system and the method can be used for detecting a plurality of vision functions.
Description
Technical field
The present invention relates to a kind of ophthalmologic examination optical instrument, especially relate to a kind of visual performance check system and method.
Background technology
The equipment that is used for the visual performance inspection at present mainly contains lamp box visual acuity chart, projector, synoptophore etc.But the most function singleness of these equipment, bulky, complicated operation.Eyes melt picture test and adopt red green color separation to realize usually, the tester of achromatopsia or color weakness is difficult to check, and because human eye is different to the response speed of red green, causes eyes synchronous detecting result inaccurate easily.Though synoptophore can be realized effect and melt the picture test preferably, its function singleness can not be carried out the sundry item test.
Existing vision inspection system and method specifically have following defective:
1. volume is big, and inconvenience is carried.
2. the eyes that have melt the picture weak effect, to tester's restriction of having ready conditions.
3. the having relatively high expectations that has to measuring distance.
4. the inspection method that has receives the intensity effect of surround lighting bigger, like non-self luminous achromatopsia checking figure, visual acuity chart etc.
5. complicated operation, general every equipment all have a cover complicated operations method for using.
6. the separate unit instrumental function is few, complete and carry out the purpose visual performance inspection of a plurality of sections and need many different equipment, and the patient is more normal to the time that each instrument room checks, program is loaded down with trivial details, and the service facility of a plurality of section office outfit, the cost of health care provider are higher.
Do not see the comprehensive visual performance testing fixture and the method that overcome above defective in the market yet comprehensively.
Constantly full-fledged along with various flat panel displays; Liquid crystal display LCD, plasma show that display devices such as PDP, Organic Light Emitting Diode OLED are expected to become the carrier of visual inspection sighting target; To satisfy the needs of various different inspection items; And the function of multiple instrument before integrated, its volume is littler, power consumption is lower.Owing to system's self-luminous, its brightness can realize accurate adjusting in addition, so the requirement of ambient lighting is greatly reduced, a large amount of trend that substitute traditional optometry checkout facilities is arranged in future.
Summary of the invention
The objective of the invention is to overcome that existing visual performance checkout facility volume is big, weak effect, environmental requirement is high, integrated level is low, complex operation, function singleness, the high defective of operating cost, the combination through up-to-date optics and microelectric technique provides a kind of new visual performance check system and method.
Content of the present invention comprises: system comprises display driver, memorizer; Said memorizer is connected with said display driver; Said display driver visual performance inspection sighting target electronic information can stored and offer to said memorizer; Visual performance inspection sighting target electronic information in the said memorizer can be different black and white of right and left eyes or colored sighting target electronic information, also can be identical black and white of right and left eyes or colored sighting target electronic information.
First kind of technical scheme is: can also be provided with the incorgruous liquid crystal display screen of interlacing polarization; Said display driver connects the incorgruous liquid crystal display screen of said interlacing polarization, adopts the different mode in interlacing dot matrix polarization direction to demonstrate the sighting target that needs the right and left eyes branch to look respectively with the sighting target electronic information that lets the incorgruous liquid crystal display screen of said interlacing polarization provide according to said memorizer.The polarization direction of the incorgruous liquid crystal display screen adjacent lines of said interlacing polarization is preferably mutually orthogonal.Can also be provided with polarising glass, the examinee wears said polarising glass and observes the sighting target that said polarizing liquid crystal screen shows.
Second kind of technical scheme is: can also be provided with the common display screen, said common display screen is connected with said display driver, is used to show the natural light sighting target of nonspecific polarization direction.
Can also be provided with synchronous glasses, the examinee wears said synchronous glasses and observes the sighting target optical information that said common display screen shows at a distance from frame; Can also be provided with synchronous transmitter and synchronous receiver, said synchronous transmitter carries out communication with synchronous receiver with wired or wireless mode and is connected, and said synchronous receiver is connected with synchro-shifter on the said synchronous glasses; Said display driver or display controller connect said synchronous transmitter and the frame synchronizing signal of needs emission are provided; Said synchronous receiver passes to the synchro-shifter on the said synchronous glasses to the frame synchronizing signal that receives; Synchro-shifter on the said synchronous glasses switches to the pattern of left eyeglass printing opacity of only letting when only needing left eye observer frame picture, when only needing right eye observer frame picture, switch to the pattern of right eyeglass printing opacity of only letting.
The third technical scheme is: on the basis of second kind of technical scheme, said common display screen can be arranged on the back of said polarization display screen.This technical scheme still needs the examinee to wear said polarising glass and observes.
In these three kinds of technical schemes, when the sighting target that the right and left eyes branch is looked identical or examinee's bore hole when observing sighting target, can be used for checking the comprehensive visual performance of patient's eyes.
In addition, said common display screen can be liquid crystal LCD display, plasma PDP display screen, Organic Light Emitting Diode OLED display screen or CRT display screen; Can also be provided with display controller, said display controller is controlled said memorizer and is sent the sighting target electronic information to said display driver, perhaps controls said display driver to said memory fetch sighting target electronic information; Can use central controlled processing unit cpu chip in the said display controller; Can also be provided with remote control transmitter, receiver of remote-control sytem; Can adopt wired or wireless communication modes between said remote control transmitter, the receiver of remote-control sytem; Said receiver of remote-control sytem is according to the said display controller of the commands for controlling of said remote control transmitter; Can also store operating system, operation sequence or operating data in the said memorizer and supply said display controller to call, to be used to realize more complicated sighting target information display operation; Said display driver is the on-site programmable gate array FPGA driver preferably; Visual performance inspection sighting target electronic information in the said memorizer preferably can be astigmatism dish, the intersection cylindrical mirror that needs the detected person to observe, the electronic information of intersecting grid, solid viewpoint, stereoscopic vision, visual balance, fertile thatch 4 points, vertical alignment, horizontal alignment, cross annular sighting target, " E " sign, " C " sign, alphabetical mark, numeral mark, pattern mark, contrast sensitivity sighting target.
The present invention compared with prior art has significant advantage and beneficial effect, is embodied in the following aspects:
1. a system can accomplish most projects that vision prescription is checked, like right and left eyes myopia, hypermetropia, astigmatism, stravismus, achromatopsia, color weakness, vision poor contrast etc., practices thrift patient's review time and service fee.
2. can adopt small-sized even also littler than books flat-panel display device, dwindle the instrument volume greatly, power consumption is little, can go out to carry.
3. simplified operation, all audit functions are all selected, are provided with, are regulated through operating remote controller on the graphical interfaces of display frame.
4. use the method that polarisation or separated frame are observed sighting target; Make eyes melt the picture test and reached better test effect; Solve the red green sighting target of traditional use and melted the dyschromatopsia problem of looking those who are investigated in the test, more accurate to achromatopsia and color weakness patient's test result.
5. the size of test sighting target can be calculated and demonstration according to the measuring distance that is provided with automatically, does not receive the restriction of fixing test distance, and is no longer strict to the requirement of test site.
6. screen self-luminous can be eliminated the influence of surround lighting to check result basically.
Description of drawings
Fig. 1 is an interlacing polarization direction different visual functional check system implementation example, among Fig. 1: display driver, memorizer, the incorgruous liquid crystal display screen of interlacing polarization, polarising glass, display controller, remote control transmitter, receiver of remote-control sytem.
Fig. 2 is the separated frame eyes of the common display screen embodiment of the synchronous visual performance check system that shows respectively, among Fig. 2: display driver, memorizer, common display screen, synchronous glasses, display controller, remote control transmitter, receiver of remote-control sytem, synchronous transmitter, synchronous receiver.
Fig. 3 is the embodiment that the visual performance check system of common display screen is set behind the incorgruous liquid crystal display screen of interlacing polarization, among Fig. 3: display driver, memorizer, the incorgruous liquid crystal display screen of interlacing polarization, common display screen, polarising glass, display controller, remote control transmitter, receiver of remote-control sytem.
The specific embodiment
Do further elaboration again below in conjunction with the accompanying drawing specific embodiments of the invention.
Fig. 1 is an interlacing polarization direction different visual functional check system implementation example.Among Fig. 1, adopt the orthogonal liquid crystal display LCD of interlacing polarized light device in the incorgruous liquid crystal display screen of said interlacing polarization.
After instrument powered on and starts shooting, the said display controller of operator's straightforward manipulation perhaps used said remote control transmitter, receiver of remote-control sytem that said display controller is carried out remote control.The operational order that said display controller receives according to said receiver of remote-control sytem; Control the test sighting target electronic information that said display driver accesses needs patient's images of left and right eyes to observe respectively from said memorizer; Form the alternating drive signal of two width of cloth pictures,, press the mode of right and left eyes corresponding odd number of difference or even number line to control the incorgruous liquid crystal display screen of said interlacing polarization; Be respectively left eye and form left eye inspection picture; For right eye forms right eye inspection picture, that is to say that the picture that all odd-numbered lines are formed on the incorgruous liquid crystal display screen of said interlacing polarization can be left eye or right eye inspection picture, the picture that all even number lines are formed can be right eye or left eye inspection picture.Because the bright dipping polarization angle quadrature of incorgruous liquid crystal display screen odd-numbered line of said interlacing polarization and even number line.Those who are investigated only need wear the orthogonal polaroid glasses of left and right sides eyeglass polarizing angle, and the analyzing direction of left and right sides eyeglass is the odd-numbered line or the even number line of corresponding screen respectively, can realize that eyes melt the picture inspection.
When not needing eyes to melt when inspection picture, the right and left eyes test pictures that said display driver forms is identical, and do not see those who are investigated be exactly the required pattern sighting target of checking by wearing spectacles.
Fig. 2 is the embodiment of logical display screen at a distance from the synchronous visual performance check system that shows of frame eyes difference, and regular display described in Fig. 3 can be used liquid crystal LCD display, plasma PDP display screen, Organic Light Emitting Diode OLED screen, CRT display screen.
In the time of need melting the picture timesharing demonstration of picture; The said synchronous glasses that those who are investigated wear can be liquid crystal shutter glasses; The shutter of its left and right sides eyeglass carries out synchronously through the different frame of said synchronous receiver, synchronous transmitter and said common display screen; Just can realize that some frame can only be watched by left eye, some frame can only be by eye viewing.
When not needing eyes to melt picture respectively when checking, what said common display screen always showed that identical frame picture, those who are investigated do not wear that said synchronous glasses see is exactly the required pattern sighting target of checking.
Fig. 3 is the embodiment that the visual performance check system of common display screen is set behind the incorgruous liquid crystal display screen of interlacing polarization; In the incorgruous liquid crystal display screen of said interlacing polarization back a common display screen can be set among Fig. 3, said common display screen can use liquid crystal LCD display, plasma PDP display screen, Organic Light Emitting Diode OLED screen, CRT display screen.
The operational order that said display controller receives according to said receiver of remote-control sytem; Control the sighting target electronic information that said display driver accesses needs patient's images of left and right eyes branch to look from said memorizer; Form the alternating drive signal of two width of cloth pictures, this alternating drive signal is mainly used in and drives the different sighting target picture of said common display screen split screen demonstration right and left eyes.The incorgruous liquid crystal display screen of said interlacing polarization plays and carries out the different printing opacity effect of interlacing liquid crystal polarization direction regularly.
Claims (15)
1. visual performance check system and method is characterized in that system comprises display driver, memorizer; Said memorizer is connected with said display driver; Said display driver visual performance inspection sighting target electronic information can stored and offer to said memorizer; Visual performance inspection sighting target electronic information in the said memorizer can be different black and white of right and left eyes or colored sighting target electronic information, also can be identical black and white of right and left eyes or colored sighting target electronic information.
2. visual performance check system according to claim 1 and method; It is characterized in that; Can also be provided with the incorgruous liquid crystal display screen of interlacing polarization; Said display driver connects the incorgruous liquid crystal display screen of said interlacing polarization, adopts the different mode in interlacing dot matrix polarization direction to demonstrate the sighting target that needs the right and left eyes branch to look respectively with the sighting target electronic information that lets the incorgruous liquid crystal display screen of said interlacing polarization provide according to said memorizer.
3. visual performance check system according to claim 2 and method is characterized in that, can also be provided with polarising glass, and the examinee wears said polarising glass and observes the sighting target that said polarizing liquid crystal screen shows.
4. visual performance check system according to claim 1 and method is characterized in that, the polarization direction of the incorgruous liquid crystal display screen adjacent lines of said interlacing polarization is preferably mutually orthogonal.
5. visual performance check system according to claim 1 and method is characterized in that, can also be provided with the common display screen, and said common display screen is connected with said display driver, is used to show the natural light sighting target of nonspecific polarization direction.
6. visual performance check system according to claim 5 and method is characterized in that, said common display screen can be arranged on the back of said polarization display screen.
7. according to claim 2,5 or 6 described visual performance check system and methods, it is characterized in that, when the sighting target that the right and left eyes branch is looked identical or examinee's bore hole when observing sighting target, can be used for checking the comprehensive visual performance of patient's eyes.
8. visual performance check system according to claim 5 and method is characterized in that, can also be provided with synchronous glasses, and the examinee wears said synchronous glasses and observes the sighting target optical information that said common display screen shows at a distance from frame; Can also be provided with synchronous transmitter and synchronous receiver, said synchronous transmitter carries out communication with synchronous receiver with wired or wireless mode and is connected, and said synchronous receiver is connected with synchro-shifter on the said synchronous glasses; Said display driver or display controller connect said synchronous transmitter and the frame synchronizing signal of needs emission are provided; Said synchronous receiver passes to the synchro-shifter on the said synchronous glasses to the frame synchronizing signal that receives; Synchro-shifter on the said synchronous glasses switches to the pattern of left eyeglass printing opacity of only letting when only needing left eye observer frame picture, when only needing right eye observer frame picture, switch to the pattern of right eyeglass printing opacity of only letting.
9. visual performance check system according to claim 5 and method is characterized in that, said common display screen can be liquid crystal LCD display, plasma PDP display screen, Organic Light Emitting Diode OLED display screen or CRT display screen.
10. visual performance check system according to claim 1 and method; It is characterized in that; Can also be provided with display controller; Said display controller is controlled said memorizer and is sent the sighting target electronic information to said display driver, perhaps controls said display driver to said memory fetch sighting target electronic information.
11. visual performance check system according to claim 10 and method is characterized in that, can use central controlled processing unit cpu chip in the said display controller.
12. according to claim 10 or 11 described visual performance check system and methods, it is characterized in that, can also be provided with remote control transmitter, receiver of remote-control sytem; Can adopt wired or wireless communication modes between said remote control transmitter, the receiver of remote-control sytem; Said receiver of remote-control sytem is according to the said display controller of the commands for controlling of said remote control transmitter.
13. visual performance check system according to claim 1 and method; It is characterized in that; Can also store operating system, operation sequence or operating data in the said memorizer and supply said display controller to call, to be used to realize more complicated sighting target information display operation.
14. visual performance check system according to claim 1 and method is characterized in that said display driver is the on-site programmable gate array FPGA driver preferably.
15. visual performance check system according to claim 1 and method; It is characterized in that the visual performance inspection sighting target electronic information in the said memorizer preferably can be astigmatism dish, the intersection cylindrical mirror that needs the detected person to observe, the electronic information of intersecting grid, solid viewpoint, stereoscopic vision, visual balance, fertile thatch 4 points, vertical alignment, horizontal alignment, cross annular sighting target, " E " sign, " C " sign, alphabetical mark, numeral mark, pattern mark, contrast sensitivity sighting target.
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| CN2011101120685A CN102764106A (en) | 2011-05-03 | 2011-05-03 | System and method for examining vision function |
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| CN2011101120685A CN102764106A (en) | 2011-05-03 | 2011-05-03 | System and method for examining vision function |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104510442A (en) * | 2014-12-17 | 2015-04-15 | 中国科学院长春光学精密机械与物理研究所 | Digital colorful eyesight testing method |
| CN105916432A (en) * | 2013-11-28 | 2016-08-31 | Ipro有限责任公司 | Method for representing optotypes, optotype representation, associated use and image output device |
| CN107007247A (en) * | 2017-06-01 | 2017-08-04 | 徐仲昭 | A kind of interactive vision inspection system and its vision testing method |
| CN107847354A (en) * | 2015-05-12 | 2018-03-27 | 新加坡科技研究局 | System and method for showing video image |
| CN108030466A (en) * | 2017-11-30 | 2018-05-15 | 武汉琉明光电科技有限公司 | A kind of method, apparatus and related system for detecting diopter |
| CN109497925A (en) * | 2018-12-29 | 2019-03-22 | 上海理工大学 | Eye visual function evaluating apparatus and eye Evaluation of visual function |
| CN110974147A (en) * | 2019-10-22 | 2020-04-10 | 温州医科大学附属眼视光医院 | Binocular vision function detection quantitative output method for binocular vision |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105916432A (en) * | 2013-11-28 | 2016-08-31 | Ipro有限责任公司 | Method for representing optotypes, optotype representation, associated use and image output device |
| US10143369B2 (en) | 2013-11-28 | 2018-12-04 | Ipro Gmbh | Method for representing optotypes, optotype representation, associated use and image output device |
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| CN104510442A (en) * | 2014-12-17 | 2015-04-15 | 中国科学院长春光学精密机械与物理研究所 | Digital colorful eyesight testing method |
| CN107847354A (en) * | 2015-05-12 | 2018-03-27 | 新加坡科技研究局 | System and method for showing video image |
| CN107007247A (en) * | 2017-06-01 | 2017-08-04 | 徐仲昭 | A kind of interactive vision inspection system and its vision testing method |
| CN108030466A (en) * | 2017-11-30 | 2018-05-15 | 武汉琉明光电科技有限公司 | A kind of method, apparatus and related system for detecting diopter |
| CN109497925A (en) * | 2018-12-29 | 2019-03-22 | 上海理工大学 | Eye visual function evaluating apparatus and eye Evaluation of visual function |
| CN110974147A (en) * | 2019-10-22 | 2020-04-10 | 温州医科大学附属眼视光医院 | Binocular vision function detection quantitative output method for binocular vision |
| CN110974147B (en) * | 2019-10-22 | 2022-05-27 | 温州医科大学附属眼视光医院 | Binocular vision function detection quantification output device for binocular vision |
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Address after: 200237 Shanghai city Minhang District Chunshen Road 1985 Lane 69 Building No. 2 A District Applicant after: Shanghai MediWorks Precision Instruments Co., Ltd. Address before: 200233 Shanghai Road, Guiping, No. 680 Venture Center building, room 33, building 817, room Applicant before: Shanghai MediWorks Precision Instruments Co., Ltd. |
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Inventor after: Wei Yue Inventor after: Chen Wenguang Inventor after: Kong Zhaosong Inventor before: Wei Yue Inventor before: Chen Wenguang Inventor before: Kong Zhaosong Inventor before: Hu Wenru |
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Application publication date: 20121107 |