CN108784644A - A kind of opticianry parameter measurement system - Google Patents
A kind of opticianry parameter measurement system Download PDFInfo
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- CN108784644A CN108784644A CN201810762532.7A CN201810762532A CN108784644A CN 108784644 A CN108784644 A CN 108784644A CN 201810762532 A CN201810762532 A CN 201810762532A CN 108784644 A CN108784644 A CN 108784644A
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- 238000005259 measurement Methods 0.000 title claims abstract description 37
- 238000003384 imaging method Methods 0.000 claims abstract description 45
- 210000004087 cornea Anatomy 0.000 claims abstract description 14
- 210000001525 retina Anatomy 0.000 claims abstract description 14
- 239000000835 fiber Substances 0.000 claims description 37
- 230000003287 optical effect Effects 0.000 claims description 23
- 210000001508 eye Anatomy 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 210000005252 bulbus oculi Anatomy 0.000 claims description 6
- 239000000571 coke Substances 0.000 claims description 3
- 238000009738 saturating Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000005693 optoelectronics Effects 0.000 abstract description 3
- 239000000523 sample Substances 0.000 description 19
- 239000000306 component Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 6
- 238000012014 optical coherence tomography Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000013307 optical fiber Substances 0.000 description 3
- 230000001427 coherent effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Classifications
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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
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/102—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for optical coherence tomography [OCT]
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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
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/12—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
- A61B3/1225—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes using coherent radiation
-
- 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
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/14—Arrangements specially adapted for eye photography
Abstract
The invention discloses a kind of opticianry parameter measurement systems.The system includes：Swept light source, anterior ocular segment imaging system, oculi posterior segment imaging system and acquisition module, the light that scanning light source is sent out is divided into four beams, light beam focuses on cornea after the anterior ocular segment sample arm component by anterior ocular segment imaging system, the anterior ocular segment sample arm component is returned after cornea back scattering, and the light returned after anterior ocular segment reference arm module with the second beam light interferes, three-beam focuses on retina after the oculi posterior segment sample arm component by oculi posterior segment imaging system, the oculi posterior segment sample arm component is returned after retina back scattering, and the light returned after oculi posterior segment reference arm module with four bundles light interferes, enter acquisition module through adder superposition after anterior ocular segment interference light and oculi posterior segment interference light opto-electronic conversion to be imaged.Opticianry parameter measurement system provided by the invention has the characteristics that high-resolution, measurement is accurate, simple in structure, collecting efficiency is high.
Description
Technical field
The present invention relates to ophthalmology parameter measurement fields, more particularly to a kind of opticianry parameter measurement system.
Background technology
Optical coherent chromatographic imaging (OCT, Optical Coherence Tomography) is dry based on partially coherent light
The imaging technique of principle is related to, core component is Michelson- (michelson) interferometer of broadband illumination, can be to including life
Strong scattering medium including object tissue is into shape Depth Imaging.For traditional clinical imaging means, OCT technology is with its height
The advantages that resolution ratio, noninvasive, non-cpntact measurement, image taking speed be fast, radiationless damage, becomes basic medical research and clinical diagnosis
The important potential tool of application.In ophthalmology, OCT image technology is hardly limited by the transparent refracting media of eye, to anterior ocular segment, eye
Bottom can be imaged, moreover it is possible to be carried out opticianry bio-measurement, be with a wide range of applications.
But in the prior art, for full eye imaging technique in the case where ensureing high-resolution, system structure is complicated, in letter
It after changing system structure, and cannot ensure high-resolution, i.e., high-resolution and simple structure cannot be taken into account.
Invention content
The object of the present invention is to provide a kind of opticianry parameter measurement systems, have high-resolution, measure accurate, structure
Simply, the high feature of collecting efficiency.
To achieve the above object, the present invention provides following schemes：
A kind of opticianry parameter measurement system, the opticianry parameter measurement system include：Swept light source, optical fiber coupling
Clutch, anterior ocular segment imaging system, oculi posterior segment imaging system and acquisition module, the anterior ocular segment imaging system include anterior ocular segment reference
Arm module, anterior ocular segment sample arm component and anterior ocular segment optical signal detecting module, the oculi posterior segment imaging system include oculi posterior segment ginseng
Arm module, oculi posterior segment sample arm component and oculi posterior segment optical signal detecting module are examined, described in the light process that the swept light source is sent out
It is divided into two bundles light after fiber coupler, respectively enters the anterior ocular segment imaging system and oculi posterior segment imaging system, described in light enters
It is divided into light beam and the second beam light after anterior ocular segment imaging system, light is divided into three-beam after entering the oculi posterior segment imaging system
With four bundles light, the light beam focuses on cornea after the anterior ocular segment sample arm component, to scattered after cornea
The anterior ocular segment sample arm component is returned after penetrating, and returned after the anterior ocular segment reference arm module with the second beam light
Light interferes, and is denoted as anterior ocular segment interference light, and the three-beam focuses on retina after the oculi posterior segment Sample assemblies,
The oculi posterior segment sample arm component is returned after retina scatters, and passes through the oculi posterior segment reference arm mould with the four bundles light
The light returned after block interferes, and is denoted as oculi posterior segment interference light, and the anterior ocular segment interference light is visited by the anterior ocular segment optical signal
It surveys module and enters acquisition module through adder, the oculi posterior segment interference light is by the oculi posterior segment optical signal detecting module through addition
Device enters acquisition module, and the acquisition module acquires superposed signal to computer, and full ocular structure is obtained after computer digital animation
Picture.
Optionally, the opticianry parameter measurement system further includes adder, the anterior ocular segment optical signal detecting module
The anterior ocular segment interference light of detection and the oculi posterior segment interference light of oculi posterior segment optical signal detecting module detection enter the adder
Enter the acquisition module after being overlapped.
Optionally, the anterior ocular segment imaging system further includes the first fiber coupler of anterior ocular segment and anterior ocular segment the second optical fiber coupling
The light for entering the anterior ocular segment imaging system is divided into the light beam and institute by clutch, the first fiber coupler of the anterior ocular segment
The second beam light is stated, the light beam passes through described in the light that the anterior ocular segment sample arm component returns and the second beam light process
The light that anterior ocular segment reference arm module returns interferes in the second fiber coupler of the anterior ocular segment.
Optionally, the oculi posterior segment imaging system further includes the first fiber coupler of oculi posterior segment and oculi posterior segment the second optical fiber coupling
The light for entering the oculi posterior segment imaging system is divided into the three-beam and institute by clutch, the first fiber coupler of the oculi posterior segment
Four bundles light is stated, the three-beam passes through described in the light that the oculi posterior segment sample arm component returns and four bundles light process
The light that oculi posterior segment reference arm module returns interferes in the second fiber coupler of the oculi posterior segment.
Optionally, the anterior ocular segment sample arm component includes the first anterior ocular segment circulator, the first anterior ocular segment collimator, first
Semi-transparent semi-reflecting lens, X-Y scanning galvanometers, lens, the second semi-transparent semi-reflecting lens and AO analog modules, the light beam pass through institute successively
The first anterior ocular segment circulator, the first anterior ocular segment collimator and the first semi-transparent semi-reflecting lens are stated, are reflected through first semi-transparent semi-reflecting lens
Afterwards, it into the X-Y scanning galvanometers, lens and the second semi-transparent semi-reflecting lens, is reflected through second semi-transparent semi-reflecting lens laggard pleasing to the eye
Ball focuses on cornea, after the first anterior ocular segment circulator is back to after cornea back scattering, into the anterior ocular segment
Second fiber coupler, the lens for focusing to the light beam, for controlling X-Y sweep by the AO analog modules
Retouch the deflection angle of galvanometer.
Optionally, the oculi posterior segment Sample assemblies include the first oculi posterior segment circulator, the first oculi posterior segment collimator, oculi posterior segment
Focusing lens, the first semi-transparent semi-reflecting lens, X-Y scanning galvanometers, lens, the second semi-transparent semi-reflecting lens and AO analog modules, the third
Shu Guang passes through the first oculi posterior segment circulator, the first oculi posterior segment collimator, oculi posterior segment focusing lens and first semi-transparent half successively
Anti- mirror, after first semi-transparent semi-reflecting lens reflection, into the X-Y scanning galvanometers, lens and the second semi-transparent semi-reflecting lens, through institute
Enter eyeball after stating the reflection of the second semi-transparent semi-reflecting lens, focuses on retina, described first is back to after retina back scattering
After oculi posterior segment circulator, into the second fiber coupler of the oculi posterior segment, the lens are for gathering the three-beam
Coke, the AO analog modules are used to control the deflection angle of X-Y scanning galvanometers.
Optionally, the anterior ocular segment reference arm module includes the second anterior ocular segment circulator, the second anterior ocular segment collimator, at the moment
Lens and anterior ocular segment speculum are saved, the second beam light is collimated by the second anterior ocular segment circulator, the second anterior ocular segment successively
Device, anterior ocular segment lens and anterior ocular segment speculum are back to the second anterior ocular segment annular after anterior ocular segment speculum reflection
Device, into the second fiber coupler of the anterior ocular segment.
Optionally, after the oculi posterior segment reference arm module is including the second oculi posterior segment circulator, the second oculi posterior segment collimator, eye
Lens and oculi posterior segment speculum are saved, the four bundles light is collimated by the second oculi posterior segment circulator, the second oculi posterior segment successively
Device, oculi posterior segment lens and oculi posterior segment speculum are back to the second oculi posterior segment annular after oculi posterior segment speculum reflection
Device, into the second fiber coupler of oculi posterior segment.
Optionally, the acquisition module includes data collector and computer, and the computer is acquired by the data
Device acquires the signal in the adder.
Optionally, the opticianry parameter measurement system further includes fixation target object, and when measurement, eyes are to the fixation
Object carries out fixation.
According to specific embodiment provided by the invention, the invention discloses following technique effects：Ophthalmology provided by the invention
The light that light source is sent out is divided into two by optical parameter measurement system, constructs two sets of interference systems, the detection optocoupler of two systems
It is focused respectively after conjunction and improves survey with anterior ocular segment and eyeground to which laterally high-resolution image can be obtained two positions
The accuracy of amount.Moreover, the light of two systems is mutually isolated by circulator, it not will produce and influence each other.In addition, two systems
It is superimposed through adder after respective interference signal opto-electronic conversion, carries out single channel acquisition, primary acquisition can carry out full eye
High-resolution imaging greatly enhances collecting efficiency.
Description of the drawings
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, puts after not making the creative labor property, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of opticianry parameter measurement system of the embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art put after not making creative work obtained it is every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of opticianry parameter measurement systems, have high-resolution, measure accurate, structure
Simply, the high feature of collecting efficiency.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
Fig. 1 is the structural schematic diagram of opticianry parameter measurement system of the embodiment of the present invention, as shown in Figure 1, the present invention carries
The opticianry parameter measurement system of confession includes：Scanning light source 101, fiber coupler 102, anterior ocular segment imaging system, oculi posterior segment
Imaging system and acquisition module, the anterior ocular segment imaging system include the first fiber coupler of anterior ocular segment 103, anterior ocular segment reference arm
Module, anterior ocular segment sample arm component, the second fiber coupler of anterior ocular segment 109 and anterior ocular segment optical signal detecting module 111, the eye
Deutomerite imaging system includes oculi posterior segment reference arm module, oculi posterior segment Sample assemblies and oculi posterior segment optical signal detecting module 124, described
The light that scanning light source 101 is sent out is divided into two bundles light after the fiber coupler 102, respectively enters anterior ocular segment imaging system
System and oculi posterior segment imaging system, after light enters the anterior ocular segment imaging system, it is the to divide through the first fiber coupler of anterior ocular segment 103
Light beam and the second beam light divide through the first fiber coupler of oculi posterior segment 104 for third after light enters the oculi posterior segment imaging system
Shu Guang and four bundles light, the light beam focuses on cornea after the anterior ocular segment sample arm component, after cornea
The anterior ocular segment sample arm component is returned after to scattering, and is returned after the anterior ocular segment reference arm module with the second beam light
Light second fiber coupler 109 of section before eyes returned interferes, and is denoted as anterior ocular segment interference light, described in the three-beam process
Retina is focused on after oculi posterior segment sample arm component, returns to the oculi posterior segment Sample assemblies after retina back scattering, and with
The light that the four bundles light returns after the oculi posterior segment reference arm module occurs dry in the second fiber coupler of oculi posterior segment 124
It relates to, is denoted as oculi posterior segment interference light, the anterior ocular segment interference light is entered by the anterior ocular segment optical signal detecting module through adder
Acquisition module, the oculi posterior segment interference light enter acquisition module by the oculi posterior segment optical signal detecting module through adder, institute
Acquisition module is stated to be imaged full ocular structure.The probe source of anterior ocular segment imaging system and oculi posterior segment imaging system is same light
Source 101.The anterior ocular segment optical signal detecting module 111 and the oculi posterior segment optical signal detecting module 124 are balanced detector,
Interference light signal is converted into electric signal.
The acquisition module includes adder 129, data collector 130 and computer 131, and the anterior ocular segment optical signal is visited
Survey module 111 detect anterior ocular segment interference light and the oculi posterior segment optical signal detecting module 124 detection oculi posterior segment interference light into
Enter the adder 129 to be overlapped, the computer 131 is acquired by the data collector 130 in the adder 129
Signal.
The anterior ocular segment sample arm component includes the first anterior ocular segment circulator 110, the first anterior ocular segment collimator 112, first
Semi-transparent semi-reflecting lens 113, AO analog modules 128, X-Y scanning galvanometers 116, lens 117 and the second semi-transparent semi-reflecting lens 118, described
Light beam passes through the first anterior ocular segment circulator 110, the first anterior ocular segment collimator 112 and the first semi-transparent semi-reflecting lens 113 successively,
After first semi-transparent semi-reflecting lens 113 reflection, into the X-Y scanning galvanometers 116, lens 117 and the second semi-transparent semi-reflecting lens
118, enter eyeball 120 after second semi-transparent semi-reflecting lens 118 reflection, focuses on cornea, returned after cornea scatters
To after the first anterior ocular segment circulator 110, into the second fiber coupler of the anterior ocular segment 109, the lens 117 for pair
The light beam is focused, wherein X-Y scanning galvanometers 116 are controlled deflection angle by AO analog modules 128.
The anterior ocular segment reference arm module includes the second anterior ocular segment circulator 108, the second anterior ocular segment collimator 107, at the moment
Lens 106 and anterior ocular segment speculum 105 are saved, the second beam light passes through the second anterior ocular segment circulator 108, second successively
Prosthomere collimator 107, anterior ocular segment lens 106 and anterior ocular segment speculum 105 return after the anterior ocular segment speculum 105 reflection
To the second anterior ocular segment circulator 108, into the second fiber coupler of the anterior ocular segment 109.
After the oculi posterior segment sample arm component is including the first oculi posterior segment circulator 121, the first oculi posterior segment collimator 115, eye
Save focusing lens 114, the first semi-transparent semi-reflecting lens 113, AO analog modules 128, X-Y scanning galvanometers 116, lens 117 and the second half
Saturating semi-reflective mirror 118, the three-beam pass through successively the first oculi posterior segment circulator 121, the first oculi posterior segment collimator 115,
Oculi posterior segment focusing lens 114 and the first semi-transparent semi-reflecting lens 113, after first semi-transparent semi-reflecting lens 113 reflection, into the X-
Y scan galvanometer 116, lens 117 and the second semi-transparent semi-reflecting lens 118 enter eyeball after second semi-transparent semi-reflecting lens 118 reflection
120, retina is focused on, after the first oculi posterior segment circulator 121 is back to after retina scatters, into the oculi posterior segment
Second fiber coupler 123, the lens 117 are for being focused the three-beam, wherein X-Y scanning galvanometers 116 by
AO analog modules 128 control deflection angle.
After the oculi posterior segment reference arm module is including the second oculi posterior segment circulator 122, the second oculi posterior segment collimator 125, eye
Lens 126 and oculi posterior segment speculum 127 are saved, the four bundles light passes through the second oculi posterior segment circulator 122, second successively
Deutomerite collimator 125, oculi posterior segment lens 126 and oculi posterior segment speculum 127 return after the oculi posterior segment speculum 127 reflection
To the second oculi posterior segment circulator 122, into the second fiber coupler of the oculi posterior segment 123.
The opticianry parameter measurement system further includes fixation optical system, and when measurement, eyes are to fixation target object 119
Fixation is carried out, fixation target object 119 is the target of distant place.
The system source is frequency sweep OCT light source.
The light that light source is sent out is divided into two by opticianry parameter measurement system provided by the invention, constructs two sets of interference
System, focus respectively after the detection optical coupling of two systems with anterior ocular segment and eyeground, to which transverse direction can be obtained two positions
High-resolution image improves the accuracy of measurement.Moreover, the light of two systems is mutually isolated by circulator, will not produce
Life influences each other.In addition, being superimposed through adder after the respective interference signal opto-electronic conversion of two systems, carries out single channel and adopt
Collection, primary acquisition can carry out high-resolution imaging to full eye, greatly enhance collecting efficiency.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
Principle and implementation of the present invention are described for specific case used herein, and above example is said
The bright method and its core concept for being merely used to help understand the present invention；Meanwhile for those of ordinary skill in the art, foundation
The thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of opticianry parameter measurement system, which is characterized in that the opticianry parameter measurement system includes：Sweep light
Source, fiber coupler, anterior ocular segment imaging system, oculi posterior segment imaging system and acquisition module, the anterior ocular segment imaging system include
Anterior ocular segment reference arm module, anterior ocular segment sample arm component and anterior ocular segment optical signal detecting module, the oculi posterior segment imaging system packet
Oculi posterior segment reference arm module, oculi posterior segment sample arm component and oculi posterior segment optical signal detecting module are included, what the swept light source was sent out
Light is divided into two bundles light after the fiber coupler, respectively enters the anterior ocular segment imaging system and oculi posterior segment imaging system,
Light is divided into light beam and the second beam light after entering the anterior ocular segment imaging system, and light divides after entering the oculi posterior segment imaging system
For three-beam and four bundles light, the light beam focuses on cornea after the anterior ocular segment sample arm component, through eye
The anterior ocular segment sample arm component is returned after cornea back scattering, and passes through the anterior ocular segment reference arm mould with the second beam light
The light returned after block interferes, and is denoted as anterior ocular segment interference light, and the three-beam gathers after the oculi posterior segment Sample assemblies
Coke returns to the oculi posterior segment sample arm component, and pass through institute with the four bundles light in retina after retina back scattering
It states the light returned after oculi posterior segment reference arm module to interfere, is denoted as oculi posterior segment interference light, the anterior ocular segment interference light passes through institute
It states anterior ocular segment optical signal detecting module and enters acquisition module through adder, the oculi posterior segment interference light is believed by the oculi posterior segment light
Number detecting module enters acquisition module through adder, and the acquisition module acquires superposed signal to computer, at computer data
Full ocular structure picture is obtained after reason.
2. opticianry parameter measurement system according to claim 1, which is characterized in that the opticianry parameter measurement
System further includes adder, the anterior ocular segment interference light of the anterior ocular segment optical signal detecting module detection and the oculi posterior segment optical signal
The oculi posterior segment interference light of detecting module detection enters the acquisition module after being overlapped into the adder.
3. opticianry parameter measurement system according to claim 1, which is characterized in that the anterior ocular segment imaging system is also
Including the second fiber coupler of the first fiber coupler of anterior ocular segment and anterior ocular segment, the first fiber coupler of the anterior ocular segment will enter
The light of the anterior ocular segment imaging system is divided into the light beam and the second beam light, the light beam described at the moment
Save light that light and the second beam light that sample arm component returns are returned by the anterior ocular segment reference arm module it is described at the moment
It saves and is interfered in the second fiber coupler.
4. opticianry parameter measurement system according to claim 1, which is characterized in that the oculi posterior segment imaging system is also
Including the second fiber coupler of the first fiber coupler of oculi posterior segment and oculi posterior segment, the first fiber coupler of the oculi posterior segment will enter
The light of the oculi posterior segment imaging system is divided into the three-beam and the four bundles light, and the three-beam is after the eye
The light that light and the four bundles light that section sample arm component returns are returned by the oculi posterior segment reference arm module is after the eye
It saves and is interfered in the second fiber coupler.
5. opticianry parameter measurement system according to claim 2, which is characterized in that the anterior ocular segment sample arm component
Including the first anterior ocular segment circulator, the first anterior ocular segment collimator, the first semi-transparent semi-reflecting lens, X-Y scanning galvanometers, lens, the second half
Saturating semi-reflective mirror and AO analog modules, the light beam are collimated by the first anterior ocular segment circulator, the first anterior ocular segment successively
Device and the first semi-transparent semi-reflecting lens, after first semi-transparent semi-reflecting lens reflection, into the X-Y scanning galvanometers, lens and second
Semi-transparent semi-reflecting lens enter eyeball after second semi-transparent semi-reflecting lens reflection, cornea are focused on, after cornea back scattering
After being back to the first anterior ocular segment circulator, into the second fiber coupler of the anterior ocular segment, the lens are used for described
Light beam is focused, and the AO analog modules are used to control the deflection angle of X-Y scanning galvanometers.
6. opticianry parameter measurement system according to claim 3, which is characterized in that the oculi posterior segment Sample assemblies packet
It includes the first oculi posterior segment circulator, the first oculi posterior segment collimator, oculi posterior segment focusing lens, the first semi-transparent semi-reflecting lens, X-Y and scans and shake
Mirror, lens, the second semi-transparent semi-reflecting lens and AO analog modules, the three-beam successively pass through the first oculi posterior segment circulator,
First oculi posterior segment collimator, oculi posterior segment focusing lens and the first semi-transparent semi-reflecting lens, after first semi-transparent semi-reflecting lens reflection, into
Enter the X-Y scanning galvanometers, lens and the second semi-transparent semi-reflecting lens, enters eyeball after second semi-transparent semi-reflecting lens reflection, gather
Coke is in retina, after the first oculi posterior segment circulator is back to after retina back scattering, into the oculi posterior segment second
Fiber coupler, for being focused to the three-beam, the AO analog modules shake the lens for controlling X-Y scannings
The deflection angle of mirror.
7. opticianry parameter measurement system according to claim 2, which is characterized in that the anterior ocular segment reference arm module
Including the second anterior ocular segment circulator, the second anterior ocular segment collimator, anterior ocular segment lens and anterior ocular segment speculum, the second beam light according to
It is secondary to pass through the second anterior ocular segment circulator, the second anterior ocular segment collimator, anterior ocular segment lens and anterior ocular segment speculum, through the eye
It is back to the second anterior ocular segment circulator after the reflection of prosthomere speculum, into the second fiber coupler of the anterior ocular segment.
8. opticianry parameter measurement system according to claim 3, which is characterized in that the oculi posterior segment reference arm module
Including the second oculi posterior segment circulator, the second oculi posterior segment collimator, oculi posterior segment lens and oculi posterior segment speculum, the four bundles light according to
It is secondary to pass through the second oculi posterior segment circulator, the second oculi posterior segment collimator, oculi posterior segment lens and oculi posterior segment speculum, through the eye
It is back to the second oculi posterior segment circulator after the reflection of deutomerite speculum, into the second fiber coupler of oculi posterior segment.
9. opticianry parameter measurement system according to claim 2, which is characterized in that the acquisition module includes data
Collector and computer, the computer acquire the signal in the adder by the data collector.
10. opticianry parameter measurement system according to claim 1, which is characterized in that the opticianry parameter is surveyed
Amount system further includes fixation target object, and when measurement, eyes carry out fixation to the fixation target object.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110013212A (en) * | 2019-04-23 | 2019-07-16 | 广东唯仁医疗科技有限公司 | Multi-parameter, multi-functional eyes measuring instrument based on optical coherence tomography |
| CN110584593A (en) * | 2019-09-09 | 2019-12-20 | 中国科学院苏州生物医学工程技术研究所 | Common beam scanning retinal imaging system |
| CN111297319A (en) * | 2020-03-20 | 2020-06-19 | 佛山科学技术学院 | Frequency domain OCT (optical coherence tomography) -based full-eye imaging and parameter measuring method and system |
| CN111557637A (en) * | 2019-02-13 | 2020-08-21 | 深圳市斯尔顿科技有限公司 | Ophthalmologic measuring system |
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