CN107198507A - Confocal laser fundus imaging instrument - Google Patents
Confocal laser fundus imaging instrument Download PDFInfo
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- CN107198507A CN107198507A CN201710589451.7A CN201710589451A CN107198507A CN 107198507 A CN107198507 A CN 107198507A CN 201710589451 A CN201710589451 A CN 201710589451A CN 107198507 A CN107198507 A CN 107198507A
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- 238000003384 imaging method Methods 0.000 title claims abstract description 48
- 230000000007 visual effect Effects 0.000 claims abstract description 42
- 239000007787 solid Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims 1
- 210000001508 eye Anatomy 0.000 description 17
- 230000000712 assembly Effects 0.000 description 16
- 238000000429 assembly Methods 0.000 description 16
- 230000003287 optical effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 210000004204 blood vessel Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000002583 angiography Methods 0.000 description 3
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000004313 glare Effects 0.000 description 2
- MOFVSTNWEDAEEK-UHFFFAOYSA-M indocyanine green Chemical compound [Na+].[O-]S(=O)(=O)CCCCN1C2=CC=C3C=CC=CC3=C2C(C)(C)C1=CC=CC=CC=CC1=[N+](CCCCS([O-])(=O)=O)C2=CC=C(C=CC=C3)C3=C2C1(C)C MOFVSTNWEDAEEK-UHFFFAOYSA-M 0.000 description 2
- 229960004657 indocyanine green Drugs 0.000 description 2
- 210000001525 retina Anatomy 0.000 description 2
- 208000003569 Central serous chorioretinopathy Diseases 0.000 description 1
- 206010012689 Diabetic retinopathy Diseases 0.000 description 1
- 208000009857 Microaneurysm Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 208000025749 Vogt-Koyanagi-Harada disease Diseases 0.000 description 1
- 208000034705 Vogt-Koyanagi-Harada syndrome Diseases 0.000 description 1
- 206010064930 age-related macular degeneration Diseases 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000005252 bulbus oculi Anatomy 0.000 description 1
- 239000002872 contrast media Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 210000004220 fundus oculi Anatomy 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 210000004126 nerve fiber Anatomy 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 238000002601 radiography Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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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
-
- 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
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- Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Ophthalmology & Optometry (AREA)
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- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Eye Examination Apparatus (AREA)
Abstract
Present invention is disclosed a kind of confocal laser fundus imaging instrument, including：Object lens, scan components, as mirror, image-forming assembly and lasing light emitter；The light that the lasing light emitter is sent enters eyeground after the scan components, object lens；Light from the eyeground outgoing is through the object lens, scan components, as entering the image-forming assembly after mirror；The confocal laser fundus imaging instrument also has fixation component, and the fixation component has at least two fixation status；When the fixation component is in the first fixation status, the fixation component guides patient's direction of visual lines to first direction；When the fixation component is in the second fixation status, the fixation component guides patient's direction of visual lines to second direction.Compared to prior art, confocal laser fundus imaging instrument of the present invention easily can guide patient's direction of visual lines from multiple angles, consequently facilitating doctor observation patient eyeground and eyeground are taken pictures.
Description
Technical field
The present invention relates to Angiography, more particularly to a kind of confocal laser fundus imaging instrument.
Background technology
Many ophthalmology diseases are all with the change on eyeground, such as senile macular degeneration, diabetic retinopathy, intraocular
Tumour, central serous chorioretinopathy, Harada disease etc..Fluorescence fundus angiography and Indocyanine-Green
It is inspection and record retina, the important diagnostic technology of choroidal artery situation.Modern fluorescence fundus angiography technology is 20
Begin to the sixties in century be applied to clinic.And Indocyanine-Green technology just starts application in the mid-90.Obtain
Accurately, clearly diagnosis and guiding treatment of the eyeground contrastographic picture to fundus oculi disease all have great importance.
The general principle of eyeground radiography is will to be injected intravenously as the fluorescent material of contrast agent, when fluorescent material passes through blood
When cycling to reach optical fundus blood vessel, with the light irradiation eyeground for being adapted to excite the fluorescent material, fluorescent material in optical fundus blood vessel by
Excite and launch a kind of fluorescence of specific wavelength, this fluorescence records are got off just to obtain the image of optical fundus blood vessel by contrast machine.By
Slightly long in the wavelength of fluorescence, many pathologic structures such as microaneurysm contrast under fluorescence are very low, it is more difficult to observe.But,
The SPECTRAL REGION of shorter wavelength, inner retina nerve fibre bundle has extra high reflectivity（Blu-ray reflection is imaged）, pass through
Contrast the eyeground of adjacent domain, it is easier to detect the local nerve fiber layer defects in eyeground.In actual clinical application, people
Generally contrast imaging, catoptric imaging are incorporated into an equipment, to facilitate surgeon flexibility to use.
When carrying out fundus imaging to patient using confocal laser fundus imaging instrument, patient's eye is close to imaging lens.By
Very dark inside imaging lens, therefore, patient's eyeball can be tampered aimlessly, so as to influence observation and the eye of doctor
Take pictures at bottom.
In view of the above problems, it is necessary to a kind of new confocal laser fundus imaging instrument is provided, to solve the above problems.
The content of the invention
In view of the shortcomings of the prior art, present invention solves the technical problem that being to provide a kind of confocal laser fundus imaging instrument,
The confocal laser fundus imaging instrument easily can guide patient's direction of visual lines from multiple angles, consequently facilitating doctor's observation is suffered from
Person eyeground and eyeground are taken pictures.
In order to solve the above technical problems, the technical proposal of the invention is realized in this way：
A kind of confocal laser fundus imaging instrument, including：Object lens, scan components, as mirror, image-forming assembly and lasing light emitter；It is described to swash
The light that light source is sent enters eyeground after the scan components, object lens；Light from the eyeground outgoing is through the object lens, scanning group
Part, as after mirror enter the image-forming assembly；The confocal laser fundus imaging instrument also has fixation component, the fixation component tool
There are at least two fixation status；When the fixation component is in the first fixation status, the fixation component guides patient's sight
Direction is to first direction；When the fixation component is in the second fixation status, the fixation component guides patient's direction of visual lines
To second direction.
Further, the fixation component includes at least two fixation lamps；It is described solid when one of fixation lamp is lighted
The first fixation status is in depending on component；When another fixation lamp is lighted, the fixation component is in the second fixation status.
Further, the fixation component includes at least two circumference fixation lamps, and the circumference fixation lamp is concyclic.
Further, the circumference of circle described in the circumference fixation lamp decile.
Further, the fixation component also includes central fixation lamp, and the central fixation lamp position is in the center of circle of the circle.
Further, the fixation component includes being provided with accepting groove on shadow shield, the shadow shield；The fixation lamp position
In in the accepting groove, lateral light leak when being lighted to prevent the fixation lamp.
Further, the fixation component has is provided with some pin holes on pinhole plate, the pinhole plate, and each pin hole is all
It is corresponding with a fixation lamp.
Further, the fixation component has the convergent bowl being engaged with the fixation lamp, and each fixation lamp is all located at
The focus of corresponding convergent bowl.
Further, the wide mouth part of the convergent bowl is provided with pinhole plate, the pinhole plate and is provided with pin hole.
Further, the fixation component, which has, is provided with a circumference pin on rotatable pinhole plate, the pinhole plate
Hole；When circumference fixation lamp is lighted, the pinhole plate is rotated such that circumference fixation lamp of the circumference pin hole just to lighting.
Further, the fixation component, which includes a central fixation lamp and one, to be rotated around the central fixation lamp
Circumference fixation lamp；When central fixation lamp or circumference the fixation lamp is lighted, the fixation component is in fixation status.
Further, the fixation component includes the shadow shield rotated together with the circumference fixation lamp, the shading
Some accepting grooves are provided with plate, each accepting groove all houses central a fixation lamp or circumference fixation lamp.
Further, be provided with the shadow shield on pinhole plate, the pinhole plate be provided with it is relative with the accepting groove
The pin hole answered.
Further, the fixation component includes the convergent bowl being engaged with fixation lamp, and the fixation lamp position is in described poly-
The focus of light bowl.
Further, the wide mouth part of the convergent bowl is provided with pinhole plate, the pinhole plate and is provided with pin hole.
Further, the fixation component includes globular motor and the fixation on the globular motor output shaft
Lamp.
Further, the fixation component also includes convergent bowl and pinhole plate；The fixation lamp position is in the convergent bowl
Focus, the pinhole plate is located at the wide mouth part of the convergent bowl, is provided with pin hole on the pinhole plate.
Further, the confocal laser fundus imaging instrument also has processing module；When the fixation component is in first
During fixation status, the image-forming assembly obtains the first visual angle eye fundus image on eyeground；When the fixation component is in the second fixation
During state, the image-forming assembly obtains the second visual angle eye fundus image on eyeground；The processing module by the first visual angle eye fundus image,
Second visual angle eye fundus image merges to form big visual field eye fundus image.
The beneficial effects of the invention are as follows：Compared to prior art, confocal laser fundus imaging instrument of the present invention can be very convenient
Ground guides patient's direction of visual lines from multiple angles, consequently facilitating doctor observation patient eyeground and eyeground are taken pictures.
Brief 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 fixation Assemblies Example one.
Fig. 3 show the structural representation of fixation Assemblies Example two.
Fig. 4 show the decomposing schematic representation of fixation Assemblies Example two.
Fig. 5 show the structural representation of fixation Assemblies Example three.
Fig. 6 show the decomposing schematic representation of fixation Assemblies Example three.
Fig. 7 show the structural representation of fixation Assemblies Example four.
Fig. 8 show the decomposing schematic representation of fixation Assemblies Example four.
Fig. 9 show the structural representation of fixation Assemblies Example five.
Figure 10 show the decomposing schematic representation of fixation Assemblies Example five.
Figure 11 show the structural representation of fixation Assemblies Example six.
Figure 12 show the decomposing schematic representation of fixation Assemblies Example six.
Figure 13 show the structural representation of fixation Assemblies Example seven.
Figure 14 show the decomposing schematic representation of fixation Assemblies Example seven.
Figure 15 show the structural representation of fixation Assemblies Example eight.
Figure 16 show the decomposing schematic representation of fixation Assemblies Example eight.
Figure 17 show the decomposing schematic representation of fixation Assemblies Example nine.
Embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with the accompanying drawings to the specific of the present invention
Embodiment is described in detail.The example of these preferred embodiments is illustrated in the accompanying drawings.Shown in accompanying drawing and root
What the embodiments of the present invention described according to accompanying drawing were merely exemplary, and the present invention is not limited to these embodiments.
Here, it should also be noted that, in order to avoid having obscured the present invention because of unnecessary details, in the accompanying drawings only
Show the structure and/or process step closely related with the solution of the present invention, and eliminate and relation of the present invention less its
His details.
In addition, it should also be noted that, term " comprising ", "comprising" or its any other variant be intended to it is non-exclusive
Property include so that process, method, article or equipment including a series of key elements not only include those key elements, and
Also include other key elements for being not expressly set out, or also include for this process, method, article or equipment inherently
Key element.
Refer to shown in Fig. 1, confocal laser fundus imaging instrument 100 of the present invention includes：Object lens 10, scan components 20, as mirror
30th, image-forming assembly 40, lasing light emitter 50, imaging lens group 60, fixation component 70 and processing module（It is not shown）.The fixation group
The light that part 70 is sent enters patient eyeground after the imaging lens group 60, object lens 10, to guide patient's direction of visual lines, so as to reach
To the purpose that patient's direction of visual lines is fixed on to a direction.The light that the lasing light emitter 50 is sent is through the scan components 20, thing
Enter eyeground after mirror 10；Light from the eyeground outgoing is through the object lens 10, scan components 20, as entering the imaging after mirror 30
Component 40.The light of the eyeground outgoing can be the special wavelength light that the fluorescent material in optical fundus blood vessel is stimulated and sent,
Can be light of the light that sends of lasing light emitter after the fundus reflex.
Refer to shown in Fig. 1, the object lens 10 are double aspherical mirrors.The scan components 20 include scanning lens 21 and
Scanning galvanometer 22.The scanning lens 21 includes scanning simple lens 211 and scanning balsaming lens 212, and the scanning is glued thoroughly
Mirror 212 includes the first lens 213 and second lens 214 Nian Jie with first lens 213.The scanning simple lens 211,
First lens 213 are planoconvex spotlights, and second lens 214 are plano-concave lens.The scanning simple lens 211, scanning are glued thoroughly
Mirror 212 so coordinates, and can effectively eliminate veiling glare.The scanning galvanometer 22 includes X-axis scanning galvanometer 221 and Y axis scanning shakes
Mirror 222.The picture mirror 30 is located between the scan components 20 and the image-forming assembly 40.The image-forming assembly 40 includes being used for
Eliminate matting module 41, image pinhole 42 and the imaging sensor 43 of veiling glare.The imaging lens group 60 is by a series of
Microscope group into.The fixation component 70 has at least two fixation status.When the fixation component 70 is in the first fixation status,
The fixation component 70 guides patient's direction of visual lines to first direction；When the fixation component 70 is in the second fixation status,
The fixation component 70 guides patient's direction of visual lines to second direction.The first direction is different from the second direction.Foregoing
First, second it is intended merely to represent two kinds of different fixation status, orbution, quantitative relation is not limited.When the fixation
When component 70 is in the first fixation status, the image-forming assembly 40 obtains the first visual angle eye fundus image on eyeground；When the fixation
When component 40 is in the second fixation status, the image-forming assembly 40 obtains the second visual angle eye fundus image on eyeground.Then, the place
Reason module merges first visual angle eye fundus image, the second visual angle eye fundus image to form big visual field eye fundus image.In reality
In, operator can obtain the eye fundus image of patient from multiple different angles, then again by the eyeground of foregoing different angles
Image is merged to obtain big visual field eye fundus image.So it can not only obtain the big visual field eye fundus image of high definition, and can be with
It is avoided to the optical lens design challenges for obtaining big visual field and triggering.The fixation component 70 has numerous embodiments, under
Face is described in detail by several most preferred embodiments.
Embodiment one
Refer to shown in Fig. 2, the fixation component 71 includes globular motor 711, the circuit on the globular motor 711
Plate 712, the convergent bowl 713 on the circuit board 712 and fixation lamp 714 and it is engaged with the fixation lamp 714
Pinhole plate 715.The globular motor 711 has three degree of freedom, and the fixation lamp 714 can be driven to be transported in solid space
It is dynamic.The fixation lamp 714 is located at the focal point of the convergent bowl 713.The convergent bowl 713 is the fixation lamp 714 to be sent out
The light gone out is projected after assembling.Meanwhile, the convergent bowl 713 is also prevented from the lateral light leak of the fixation lamp 714, so as to influence solid
Depending on effect.The pinhole plate is in circular arc camber shape, is provided with some pin holes 7151.In the present embodiment, the pin hole
7151 have 9, so as to operator from 9 directions to guide, the direction of visual lines of immobilized patients.In use, operator controls institute
State globular motor 711 to move so that the fixation lamp 714 moves to any pin hole under the drive of the globular motor 711
At 7151.Now, the light that the fixation lamp 714 is sent, which is passed through, enters eyeground after the pin hole 7151, object lens 10, draw so as to play
Lead, the effect of immobilized patients direction of visual lines.In the present embodiment, when the fixation lamp 714 is lighted and is located at any pin hole 7151
During place, such a state is a kind of fixation status.
Embodiment two
Refer to shown in Fig. 3, Fig. 4, the fixation component 72 includes globular motor 721, on the globular motor 721
Circuit board 722, the convergent bowl 723 on the circuit board 722 and fixation lamp 724 and installed in the convergent bowl 723
On pinhole plate 725.The globular motor 721 has three degree of freedom, can drive the fixation lamp 724 in solid space
Motion.The fixation lamp 724 is located at the focal point of the convergent bowl 723.The convergent bowl 723 is to by the fixation lamp 724
The light sent is projected after assembling.Meanwhile, the convergent bowl 723 can also effectively prevent the lateral light leak of the fixation lamp 724, so that
Influence fixation effect.The pinhole plate 725 is in discoideus, and it is located at the wide mouth part of the convergent bowl 723, is provided with one
Pin hole 7251.The light that the fixation lamp 724 is sent is projected after being assembled through the convergent bowl 723 from the pin hole 7251, and is passed through
The object lens 10 enter eyeground, so as to play a part of guiding, immobilized patients direction of visual lines.Because the pinhole plate 725 can be with
As the fixation lamp 724 is moved together, therefore the fixation component 72 described in the present embodiment can be guided in any angle, fixed
The direction of visual lines of patient.Also, the fixation component 72 can guide patient's direction of visual lines to be at the uniform velocity moved to separately from a direction
One direction, consequently facilitating doctor observation patient eyeground, is conducive to the image-forming assembly 40 to obtain the eyeground of a large amount of different angles
Image, and then be conducive to the processing module to synthesize the big visual field eye fundus image of high definition.In the present embodiment, when the fixation lamp
724 light and positioned at optional position when, the state is a kind of fixation status.
Embodiment three
Refer to shown in Fig. 5, Fig. 6, the fixation component 73 includes motor 731, the circuit board on the motor 731
732nd, on the circuit board 732 convergent bowl 733 and circumference fixation lamp 734 and wide installed in the convergent bowl 733
Pinhole plate 735 on mouth end.The motor 731 drives the circuit board 732 to rotate.The convergent bowl 733 is located at the circuit
Non- circle centre position on plate 732, the light the circumference fixation lamp 734 to be sent is projected after assembling.734, the circumference fixation lamp
In non-circle centre position on the circuit board 732, and positioned at the focal point of the convergent bowl 733.The pinhole plate 735 in discoideus,
Installed in the wide mouth part of convergent bowl 733, a pin hole 7351 is provided with.By the pinhole plate 735 can be with institute
State circumference fixation lamp 734 to rotate, therefore, the fixation component 73 can guide patient's direction of visual lines at the uniform velocity to move in a circumferential direction
It is dynamic, and patient's direction of visual lines is fixed on the optional position of circumference.In the present embodiment, when the fixation lamp 734 is lighted and
During positioned at optional position, this state is a kind of fixation status.
Example IV
Refer to shown in Fig. 7, Fig. 8, the fixation component 74 includes motor 741, the circuit board on the motor 741
742nd, on the circuit board 742 convergent bowl 743 and circumference fixation lamp 744 and pinhole plate 745.The motor 741
The circuit board 742 is driven to rotate.The convergent bowl 743 is located at non-circle centre position on the circuit board 742, to by the circumference
The light that fixation lamp 744 is sent is projected after assembling.The circumference fixation lamp 744 is located at non-circle centre position on the circuit board 742, and position
In the focal point of the convergent bowl 743.Some circumference pin holes 7451, and the pinhole plate 745 are provided with the pinhole plate 745
Not as the circumference fixation lamp 744 rotates.Because the circumference pin hole 7451 is located on discrete point, therefore the present embodiment institute
State fixation component 74 and can only be guided on discrete several points, immobilized patients direction of visual lines.In the present embodiment, when described
When circumference fixation lamp 744 is lighted and is located at any circumference pin hole 7451, such a state is a kind of fixation status.
Embodiment five
Refer to shown in Fig. 9, Figure 10, the fixation component 75 includes motor 751, the circuit board on the motor 751
752nd, the convergent bowl 753 and fixation lamp 754 and pinhole plate 755 on the circuit board 752.The motor 75 drives institute
Circuit board 752 is stated to rotate.The convergent bowl 753 include positioned at the centre of circuit board 752 central convergent bowl 7531 and
Positioned at the circumference convergent bowl 7532 of the non-centre of the circuit board 752.The fixation lamp 754 includes being located at the central convergent bowl
The central fixation lamp 7541 of 7531 focal points and the circumference fixation lamp 7542 positioned at the focal point of circumference convergent bowl 7532.Institute
State be provided with pinhole plate 755 central pinhole 7551 corresponding with the central fixation lamp 7541 and with the circumference fixation
The corresponding some circumference pin holes 7552 of lamp 7542.Because the central pinhole 7551, circumference pin hole 7552 are located at discrete point
On, therefore fixation component 75 described in the present embodiment can only be guided on discrete several points, immobilized patients direction of visual lines.
In the present embodiment, when the fixation lamp 754 is lighted and is located at any central pinhole 7551 or circumference pin hole 7552, the state
As a kind of fixation status.
Embodiment six
Refer to shown in Figure 11, Figure 12, the difference of the fixation component 76 and the fixation component 75 is pinhole plate.Institute
The pinhole plate 761 in fixation component 76 is stated in discoideus, a pin hole 7611 is provided with.The pinhole plate 761 is located at poly-
The wide mouth part of light bowl 762.
Embodiment seven
Refer to shown in Figure 13, Figure 14, the fixation component 77 includes circuit board 771, gathering on the circuit board 771
Light bowl 772, fixation lamp 773 and pinhole plate 774 positioned at the focal point of convergent bowl 772.The convergent bowl 772 includes being located at
The central convergent bowl 7721 and some circumference convergent bowls 7722 in the center of circuit board 771, some circumference convergent bowls
7722 is concyclic, and is evenly distributed on the surrounding of the central convergent bowl 7721, i.e.,：The central convergent bowl 7721 is located at the circle
Center.So that the fixation lamp 773 in the circumference convergent bowl 772 is also concyclic, and circle described in decile.The pin
Some pin holes 7741 corresponding with the convergent bowl 772 are provided with orifice plate 774.In the present embodiment, the fixation lamp
773rd, pinhole plate 774 is all fixed.In the present embodiment, it is a kind of fixation status when any fixation lamp is lighted.
Embodiment eight
Refer to shown in Figure 15, Figure 16, the difference of the fixation component 78 and the fixation component 77 is pinhole plate.Institute
The pinhole plate 781 of fixation component 78 is stated in discoideus, a pin hole 7811 is provided with.The pinhole plate 781 is arranged on poly-
The wide mouth part of light bowl 782.
Embodiment nine
Refer to shown in Figure 17, if the fixation component 79 includes circuit board 791, solid on the circuit board 791
Depending on lamp 792, shadow shield 793 and pinhole plate 794.Some accepting grooves 7931 are provided with the shadow shield 793.The fixation lamp
792 are located in the accepting groove 7931, to prevent the lateral light leak of the fixation lamp 792, so as to influence fixation effect.The pinhole plate
Some pin holes 7941 corresponding with the accepting groove 7931 are provided with 794.In the present embodiment, the fixation lamp 792 has
There are 1 central fixation lamp 7921 and 8 circumference fixation lamps 7922.In the present embodiment, it is when any fixation lamp is lighted
A kind of fixation status.
Compared to prior art, confocal laser fundus imaging instrument 100 of the present invention can be guided easily from multiple angles
Patient's direction of visual lines, consequently facilitating doctor observation patient eyeground and eyeground are taken pictures.In addition, confocal laser fundus imaging instrument of the present invention
100 can also obtain the big visual field eye fundus image of high definition, be prevented effectively from the optical lens design triggered to obtain big visual field difficult
Topic.
In particular, for the person of ordinary skill of the art, that 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 that scope of the present invention patent is advocated.
Claims (18)
1. a kind of confocal laser fundus imaging instrument, including：Object lens, scan components, as mirror, image-forming assembly and lasing light emitter；It is described
The light that lasing light emitter is sent enters eyeground after the scan components, object lens；Light from the eyeground outgoing is through the object lens, scanning
Component, as after mirror enter the image-forming assembly；It is characterized in that：The confocal laser fundus imaging instrument also has fixation component,
The fixation component has at least two fixation status；When the fixation component is in the first fixation status, the fixation group
Part guides patient's direction of visual lines to first direction；When the fixation component is in the second fixation status, the fixation component draws
Patient's direction of visual lines is led to second direction.
2. confocal laser fundus imaging instrument as claimed in claim 1, it is characterised in that：The fixation component includes at least two
Fixation lamp；When one of fixation lamp is lighted, the fixation component is in the first fixation status；When another fixation lamp is lighted
When, the fixation component is in the second fixation status.
3. confocal laser fundus imaging instrument as claimed in claim 2, it is characterised in that：The fixation component includes at least two
Circumference fixation lamp, the circumference fixation lamp is concyclic.
4. confocal laser fundus imaging instrument as claimed in claim 3, it is characterised in that：Circle described in the circumference fixation lamp decile
Circumference.
5. confocal laser fundus imaging instrument as claimed in claim 3, it is characterised in that：It is solid that the fixation component also includes center
Depending on lamp, the central fixation lamp position is in the center of circle of the circle.
6. the confocal laser fundus imaging instrument as described in any one in claim 3 to 5, it is characterised in that：The fixation group
Part includes being provided with accepting groove on shadow shield, the shadow shield；The fixation lamp position is in the accepting groove, to prevent the fixation
Lateral light leak when lamp is lighted.
7. confocal laser fundus imaging instrument as claimed in claim 6, it is characterised in that：The fixation component has pinhole plate,
Some pin holes are provided with the pinhole plate, each pin hole is all corresponding with a fixation lamp.
8. the confocal laser fundus imaging instrument as described in any one in claim 3 to 5, it is characterised in that：The fixation group
Part has the convergent bowl being engaged with the fixation lamp, and each fixation lamp is all located at the focus of corresponding convergent bowl.
9. confocal laser fundus imaging instrument as claimed in claim 8, it is characterised in that：The wide mouth part of the convergent bowl is provided with
Pin hole is provided with pinhole plate, the pinhole plate.
10. confocal laser fundus imaging instrument as claimed in claim 8, it is characterised in that：The fixation component has rotatable
Pinhole plate, be provided with a circumference pin hole on the pinhole plate；When circumference fixation lamp is lighted, the pinhole plate rotate so that
Obtain circumference fixation lamp of the circumference pin hole just to lighting.
11. confocal laser fundus imaging instrument as claimed in claim 1, it is characterised in that：The fixation component is included in one
Entreat fixation lamp and a circumference fixation lamp that can be rotated around the central fixation lamp；When the central fixation lamp or circumference fixation
When lamp is lighted, the fixation component is in fixation status.
12. confocal laser fundus imaging instrument as claimed in claim 11, it is characterised in that：The fixation component is included with institute
State and be provided with some accepting grooves on the shadow shield that circumference fixation lamp rotates together, the shadow shield, each accepting groove all houses one
Individual central fixation lamp or circumference fixation lamp.
13. confocal laser fundus imaging instrument as claimed in claim 12, it is characterised in that：Pin hole is provided with the shadow shield
The pin hole corresponding with the accepting groove is provided with plate, the pinhole plate.
14. confocal laser fundus imaging instrument as claimed in claim 11, it is characterised in that：The fixation component includes and fixation
The convergent bowl that lamp is engaged, the fixation lamp position is in the focus of the convergent bowl.
15. confocal laser fundus imaging instrument as claimed in claim 14, it is characterised in that：The wide mouth part of the convergent bowl is set
Have and be provided with pin hole on pinhole plate, the pinhole plate.
16. confocal laser fundus imaging instrument as claimed in claim 1, it is characterised in that：The fixation component includes spherical electricity
Machine and the fixation lamp on the globular motor output shaft.
17. confocal laser fundus imaging instrument as claimed in claim 16, it is characterised in that：The fixation component also includes optically focused
Bowl and pinhole plate；The fixation lamp position is located at the wide mouth part of the convergent bowl in the focus of the convergent bowl, the pinhole plate,
Pin hole is provided with the pinhole plate.
18. confocal laser fundus imaging instrument as claimed in claim 1, it is characterised in that：The confocal laser fundus imaging instrument
Also there is processing module；When the fixation component is in the first fixation status, the first of the image-forming assembly acquisition eyeground regards
Angle eye fundus image；When the fixation component is in the second fixation status, the image-forming assembly obtains the second visual angle eye on eyeground
Base map picture；The processing module merges the first visual angle eye fundus image, the second visual angle eye fundus image to form big visual field eyeground figure
Picture.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710589451.7A CN107198507A (en) | 2017-07-19 | 2017-07-19 | Confocal laser fundus imaging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710589451.7A CN107198507A (en) | 2017-07-19 | 2017-07-19 | Confocal laser fundus imaging instrument |
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| Publication Number | Publication Date |
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| CN107198507A true CN107198507A (en) | 2017-09-26 |
Family
ID=59911909
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710589451.7A Pending CN107198507A (en) | 2017-07-19 | 2017-07-19 | Confocal laser fundus imaging instrument |
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| CN110074753A (en) * | 2019-04-26 | 2019-08-02 | 北京至真互联网技术有限公司 | Fundus camera |
| CN111067478A (en) * | 2018-10-18 | 2020-04-28 | 晋弘科技股份有限公司 | Fundus camera and method for self-photographing fundus |
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Application publication date: 20170926 |