CN106539556A - Confocal laser fundus imaging instrument - Google Patents
Confocal laser fundus imaging instrument Download PDFInfo
- Publication number
- CN106539556A CN106539556A CN201710010692.1A CN201710010692A CN106539556A CN 106539556 A CN106539556 A CN 106539556A CN 201710010692 A CN201710010692 A CN 201710010692A CN 106539556 A CN106539556 A CN 106539556A
- Authority
- CN
- China
- Prior art keywords
- scanning
- confocal laser
- imaging instrument
- module
- fundus imaging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- 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
-
- 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
- A61B3/15—Arrangements specially adapted for eye photography with means for aligning, spacing or blocking spurious reflection ; with means for relaxing
- A61B3/156—Arrangements specially adapted for eye photography with means for aligning, spacing or blocking spurious reflection ; with means for relaxing for blocking
Abstract
Present invention is disclosed a kind of confocal laser fundus imaging instrument, including：Object lens, scanning lenses, scanning galvanometer, as mirror, matting module, pin hole, imaging detection component and lasing light emitter；Optical fundus are entered after the light that the lasing light emitter sends scanning galvanometer, scanning lenses, object lens described in；From the light of the optical fundus outgoing described in object lens, scanning lenses, scanning galvanometer, as mirror, matting module, pin hole after enter the imaging detection component；The matting module is delustring polaroid.Compared to prior art, confocal laser fundus imaging instrument of the present invention can reduce the interference of " ghost image " formed by veiling glare when catoptric imaging is carried out, and improve image quality.
Description
Technical field
The present invention relates to Angiography, more particularly to a kind of confocal laser fundus imaging instrument.
Background technology
Many ophthalmic diseasess are all with the change on optical fundus, such as senile degeneration of macula, diabetic retinopathy, ophthalmic
Tumor, central serous chorioretinopathy, Harada disease etc..Fluorescence fundus angiography and Indocyanine-Green
It is the important diagnostic technology for checking and recording retina, choroidal artery situation.Modern fluorescence fundus angiography technology is 20
The sixties in century begins to be applied to clinic.And Indocyanine-Green technology just starts application in the mid-90.Obtain
Accurately, clearly optical fundus contrastographic picture all has great importance to the diagnosis of fundus oculi disease and guiding treatment.
The ultimate principle of optical fundus radiography is using the fluorescent material intravenous injection as contrast agent, when fluorescent material passes through blood
When cycling to reach optical fundus blood vessel, with being adapted to excite the light irradiation optical fundus of the fluorescent material, the fluorescent material in optical fundus blood vessel to be subject to
Excite and launch a kind of fluorescence of specific wavelength, this fluorescence records are got off just to obtain contrast machine the image of optical fundus blood vessel.By
Slightly long in the wavelength of fluorescence, many pathologic structure such as microangioma contrast under fluorescence is very low, it is more difficult to observe.But,
The SPECTRAL REGION of shorter wavelength, inner retina nerve fibre bundle have extra high reflectance（Blu-ray reflection is imaged）, pass through
The optical fundus of contrast adjacent domain, it is easier to detect the nerve fiber layer defects of optical fundus local.In practical clinical, people
Generally contrast imaging, catoptric imaging are incorporated on an equipment, to facilitate surgeon flexibility to use.
As imaging device generally uses aspherical mirror, under catoptric imaging pattern, one on eye fundus picture, is had
" ghost image " for clearly being formed by veiling glare, seriously reduces image quality, brings inconvenience to the interpretation diagnosis of doctor, or even
Judge by accident can doctor.
In view of the above problems, it is necessary to provide a kind of confocal laser fundus imaging instrument, to solve the above problems.
The content of the invention
For the deficiencies in the prior art, present invention solves the technical problem that a kind of confocal laser fundus imaging instrument is to provide,
The confocal laser fundus imaging instrument can reduce the interference of " ghost image " formed by veiling glare when catoptric imaging is carried out, and improve into
As quality.
To solve above-mentioned technical problem, the technical scheme is that what is be achieved in that：
A kind of confocal laser fundus imaging instrument, including：Object lens, scanning lenses, scanning galvanometer, as mirror, matting module, pin hole, into
As probe assembly and lasing light emitter；Described in the light Jing that the lasing light emitter sends, scanning galvanometer, scanning lenses, object lens are laggard pleasing to the eye
Bottom；From the light of the optical fundus outgoing described in object lens, scanning lenses, scanning galvanometer, as mirror, matting module, pin hole after enter institute
State imaging detection component；The matting module is delustring polaroid.
Further, the matting module is also including base, the motor on the base, installed in the motor
On spill spin block and an at least tablet filter, the optical filter, delustring polaroid be arranged on the spill spin block on, the base
On be provided with light hole；During work, the spill spin block is rotated under the drive of the motor so that the optical filter or delustring
Polaroid is overlapped with the light hole.
Further, the lasing light emitter includes being polarized module, and the module that is polarized includes rotatable rotating disk and peace
It is mounted in and is polarized polaroid in the rotating disk；When the rotating disk is rotated, the polaroid that is polarized is with the rotating disk
Rotate.
Further, the scanning galvanometer, as spectral module is provided between mirror, the spectral module includes spectroscope.
Further, the spectral module also includes chassis and the supporting table on the chassis, the support
Platform has optical channel and the mounting surface being obliquely installed, and the spectroscope is arranged on the mounting surface.
Further, the mounting surface and it is described go out optical channel axle center between angle be located between 30 ° and 60 °.
Further, the spectral module is additionally provided with adjusting screw, and the adjusting screw is arranged on the chassis
Installing hole is interior and withstands the supporting table；When needing to adjust spectroscopical position, the adjusting screw is rotated, now institute
State supporting table described in adjusting screw jack-up so that the angle between the supporting table and the chassis changes, so that
Angle between the spectroscope and the chassis changes.
Further, the adjusting screw is three, and the adjusting screw is evenly distributed on the chassis circumferential edges
On, now three adjusting screws constitute an equilateral triangle.
Further, illuminator is additionally provided between the object lens and the scanning lenses, to change the propagation road of light
Footpath.
Further, the scanning lenses include scanning simple lens and scanning balsaming lenss, the scanning balsaming lenss
Including planoconvex lenss and planoconcave lenses.
The invention has the beneficial effects as follows：Compared to prior art, confocal laser fundus imaging instrument of the present invention is being reflected
The interference of " ghost image " formed by veiling glare can be reduced during imaging, image quality is improved.
Description of the drawings
Fig. 1 show the structural representation of confocal laser fundus imaging instrument of the present invention.
Fig. 2 show the structural representation of spectral module.
Three-dimensional exploded views of the Fig. 3 for spectral module shown in Fig. 2.
Schematic perspective views of the Fig. 4 for supporting table.
Fig. 5 show the three-dimensional exploded view of matting module.
Fig. 6 show the schematic perspective view of another angle of matting module.
Fig. 7 show the structural representation for being polarized module.
Fig. 8 is the three-dimensional exploded view that module is polarized shown in Fig. 7.
Specific embodiment
Refer to shown in Fig. 1, confocal laser fundus imaging instrument of the present invention 100 includes：Object lens 10, scanning lenses 20, scanning
Galvanometer 30, as mirror 40, matting module 50, pin hole 60, imaging detection component 70 and lasing light emitter 80.What the lasing light emitter 80 sent
Optical fundus are entered after light scanning galvanometer 30, scanning lenses 20, object lens 10 described in；Object lens described in light Jing from the optical fundus outgoing
10th, scanning lenses 20, scanning galvanometer 30, as after mirror 40, matting module 50, pin hole 60 enter the imaging detection component 70.Institute
The light for stating optical fundus outgoing can be the special wavelength light that the fluorescent material Stimulated Light in optical fundus blood vessel is excited and sent, or
Light after light fundus reflex described in that lasing light emitter sends.
Refer to shown in Fig. 1, the object lens 10 are double aspherical mirrors.The scanning lenses 20 include scan simple lens 21 with
And scanning balsaming lenss 22, the scanning balsaming lenss 22 include the first lens 221 and bonding with first lens 221
Second lens 222.The scanning simple lens 21, the first lens 221 are planoconvex lenss, and second lens 222 are planoconcave lenses.
The scanning simple lens 21, scanning balsaming lenss 22 so coordinate, and can effectively eliminate veiling glare.The object lens 10 and the scanning
Illuminator 11 is additionally provided between lens 20, to change the propagation path of light.The scanning galvanometer 30 includes X-axis scanning galvanometer
31 and Y axis scanning galvanometer 32.The picture mirror 40 is located between the scanning galvanometer 30 and the matting module 50.In this enforcement
In example, the picture mirror 40 is planoconvex lenss, the scanning galvanometer 30 and described as spectral module 90 is additionally provided between mirror 40.Please
Refering to shown in Fig. 2, Fig. 3 and Fig. 4, the spectral module 90 includes chassis 91, the supporting table 92 on the chassis 91
And spectroscope 93.The fixing hole 911 and installing hole 912 on the chassis 91 are provided through on the chassis 91.Described
Support platform 92 has optical channel 921 and the mounting surface 922 being obliquely installed, and the spectroscope 93 is arranged on the mounting surface 922
On.The mounting surface 922 and it is described go out optical channel 921 axle center between angle be located between 30 ° and 60 °.The light splitting mould
Block 90 is additionally provided with fixing screws 94 and adjusting screw 95.The fixing screws 94 are engaged with the fixing hole 911, by institute
State supporting table 92 to be movably fixed on the chassis 91.The adjusting screw 95 is arranged on the installing hole 912 on the chassis 91
It is interior and withstand the supporting table 92.When needing to adjust the position of the spectroscope 93, the adjusting screw 95 is rotated, now institute
State supporting table 92 described in 95 jack-up of adjusting screw so that the angle between the supporting table 92 and the chassis 91 changes,
So that the angle between the spectroscope 93 and the chassis 91 changes.Need when the position of the spectroscope 93 meets
When wanting, then stop operating the adjusting screw 95.In the present embodiment, the adjusting screw 95 is three, and the regulation spiral shell
Nail 95 is evenly distributed on 91 circumferential edges of the chassis, and now three adjusting screws 95 constitute an equilateral triangle.
Refer to shown in Fig. 5 and Fig. 6, the matting module 50 includes base 51, the electricity on the base 51
Machine 52, at least spill spin block 53 on the motor 52, a tablet filter 54 and delustring polaroid 55.The base 51
On be provided with light hole 511.The optical filter 54, delustring polaroid 55 are arranged on the spill spin block 53.During work, the rotation
Switch block 53 is rotated under the drive of the motor 52 so that the optical filter 54 or delustring polaroid 55 and the light hole
511 overlap.When the optical filter 54 is overlapped with the light hole 511, confocal laser optical fundus angiographic instrument 100 can be carried out
Contrast imaging；When the delustring polaroid 55 is overlapped with the light hole 511, confocal laser optical fundus angiographic instrument 100 can
To carry out catoptric imaging, now the delustring polaroid 55 can be greatly reduced the brightness of sphere mapping, without being greatly reduced
The brightness of effect image, so as to preferably improve signal to noise ratio so that effective image becomes apparent from, is conducive to doctor to carry out interpretation
Diagnosis.In the present embodiment, the characteristics of delustring polaroid 55 has high bandwidth, low transmission, i.e.,：The delustring polaroid
55 can allow visible ray, infrared light, and transmitance is not higher than 40%.
Refer to shown in Fig. 7 and Fig. 8, the lasing light emitter 80 has and is polarized module 81, it is described be polarized that module 81 includes can
The rotating disk 811 of rotation and it is polarized polaroid 812 in the rotating disk 811.When rotating the rotating disk 811
When, the polaroid 812 that is polarized sends light such that it is able to effectively adjust the lasing light emitter 80 as the rotating disk 811 is rotated
Polarization direction.In the present embodiment, it is described be polarized polaroid 812 with high bandwidth, high permeability the characteristics of, i.e.,：Described
Partially polaroid 812 can allow visible ray, infrared light, and transmitance is not less than 65%.
Compared to prior art, confocal laser fundus imaging instrument of the present invention 100 effectively can be dropped when catoptric imaging is carried out
The interference of low " ghost image " formed by veiling glare, improves image quality.
Specifically, for the person of ordinary skill of the art, that what is made under the teachings of the present invention is directed to
The equivalence changes of the present invention, should be included in the scope advocated by scope of the present invention patent.
Claims (10)
1. a kind of confocal laser fundus imaging instrument, including：Object lens, scanning lenses, scanning galvanometer, as mirror, matting module, pin hole,
Imaging detection component and lasing light emitter；Described in the light Jing that the lasing light emitter sends, scanning galvanometer, scanning lenses, object lens are laggard pleasing to the eye
Bottom；From the light of the optical fundus outgoing described in object lens, scanning lenses, scanning galvanometer, as mirror, matting module, pin hole after enter institute
State imaging detection component；It is characterized in that：The matting module is delustring polaroid.
2. confocal laser fundus imaging instrument as claimed in claim 1, it is characterised in that：The matting module also include base,
Motor on the base, the spill spin block on the motor and an at least tablet filter, the optical filter,
Delustring polaroid is arranged on the spill spin block, is provided with light hole on the base；During work, the spill spin block is in the electricity
Rotate under the drive of machine so that the optical filter or delustring polaroid are overlapped with the light hole.
3. confocal laser fundus imaging instrument as claimed in claim 1, it is characterised in that：The lasing light emitter includes being polarized module,
The module that is polarized includes rotatable rotating disk and is polarized polaroid in the rotating disk；When the rotation rotation
During rotating disk, the polaroid that is polarized is as the rotating disk is rotated.
4. confocal laser fundus imaging instrument as claimed in claim 1, it is characterised in that：The scanning galvanometer, as setting between mirror
Spectral module is equipped with, the spectral module includes spectroscope.
5. confocal laser fundus imaging instrument as claimed in claim 4, it is characterised in that：The spectral module also include chassis with
And the supporting table on the chassis, the supporting table has optical channel and a mounting surface being obliquely installed, described point
Light microscopic is arranged on the mounting surface.
6. confocal laser fundus imaging instrument as claimed in claim 5, it is characterised in that：The mounting surface with it is described go out optical channel
Axle center between angle be located between 30 ° and 60 °.
7. confocal laser fundus imaging instrument as claimed in claim 5, it is characterised in that：The spectral module is additionally provided with regulation
Screw, the adjusting screw are arranged in the installing hole on the chassis and withstand the supporting table；When needing, regulation is described to divide
During the position of light microscopic, rotate the adjusting screw, now supporting table described in the adjusting screw jack-up so that the supporting table with
Angle between the chassis changes, so that the angle between the spectroscope and the chassis changes.
8. confocal laser fundus imaging instrument as claimed in claim 7, it is characterised in that：The adjusting screw is three, and institute
State adjusting screw to be evenly distributed on the chassis circumferential edges, now three adjusting screws constitute an equilateral triangle.
9. confocal laser fundus imaging instrument as claimed in claim 1, it is characterised in that：The object lens and the scanning lenses it
Between be additionally provided with illuminator, to change the propagation path of light.
10. confocal laser fundus imaging instrument as claimed in claim 1, it is characterised in that：The scanning lenses include that scanning is single
Lens and scanning balsaming lenss, the scanning balsaming lenss include planoconvex lenss and planoconcave lenses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710010692.1A CN106539556A (en) | 2017-01-06 | 2017-01-06 | Confocal laser fundus imaging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710010692.1A CN106539556A (en) | 2017-01-06 | 2017-01-06 | Confocal laser fundus imaging instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106539556A true CN106539556A (en) | 2017-03-29 |
Family
ID=58396275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710010692.1A Pending CN106539556A (en) | 2017-01-06 | 2017-01-06 | Confocal laser fundus imaging instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN106539556A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018040617A1 (en) * | 2016-08-31 | 2018-03-08 | 苏州微清医疗器械有限公司 | Confocal laser fundus angiographic device |
| WO2019080765A1 (en) * | 2017-10-25 | 2019-05-02 | 视微影像(河南)科技有限公司 | Confocal scanning laser opthalmoscope |
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| US20090310083A1 (en) * | 2006-05-03 | 2009-12-17 | Campbell Melanie C W | Method and Apparatus for Improved Fundus Imaging Through Choice of Light Polarisation |
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| JP2014226156A (en) * | 2013-05-17 | 2014-12-08 | 株式会社トプコン | Scanning laser ophthalmoscope |
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| CN105242485A (en) * | 2015-11-20 | 2016-01-13 | 重庆盾银科技有限公司 | Multi-spectrum filter switching device for image imaging device |
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| CN205200797U (en) * | 2015-11-23 | 2016-05-04 | 东莞市远程自动化科技有限公司 | Laser lens adjustment device and applied laser lens adjustment device's laser machine equipment |
| CN205538666U (en) * | 2016-01-26 | 2016-08-31 | 安徽蓝盾光电子股份有限公司 | Gaseous calibration device of rotary balance formula dual component |
| CN106214119A (en) * | 2016-08-31 | 2016-12-14 | 苏州微清医疗器械有限公司 | Confocal laser optical fundus angiographic instrument |
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| US20090310083A1 (en) * | 2006-05-03 | 2009-12-17 | Campbell Melanie C W | Method and Apparatus for Improved Fundus Imaging Through Choice of Light Polarisation |
| JP2014226156A (en) * | 2013-05-17 | 2014-12-08 | 株式会社トプコン | Scanning laser ophthalmoscope |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018040617A1 (en) * | 2016-08-31 | 2018-03-08 | 苏州微清医疗器械有限公司 | Confocal laser fundus angiographic device |
| US10575729B2 (en) | 2016-08-31 | 2020-03-03 | Suzhou Microclear Medical Instruments Co., Ltd. | Confocal laser fundus angiographic device |
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| US11337608B2 (en) | 2017-10-25 | 2022-05-24 | Svision Imaging Limited | Confocal scanning laser ophthalmoscope |
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Application publication date: 20170329 |