CN107260120A - A kind of camera and the common light path imaging devices of OCT - Google Patents
A kind of camera and the common light path imaging devices of OCT Download PDFInfo
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- CN107260120A CN107260120A CN201710401062.7A CN201710401062A CN107260120A CN 107260120 A CN107260120 A CN 107260120A CN 201710401062 A CN201710401062 A CN 201710401062A CN 107260120 A CN107260120 A CN 107260120A
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- 238000003384 imaging method Methods 0.000 title claims abstract description 17
- 238000005286 illumination Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims 2
- 239000011521 glass Substances 0.000 claims 1
- 238000012014 optical coherence tomography Methods 0.000 description 25
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000009738 saturating Methods 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
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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
- A61B3/14—Arrangements specially adapted for eye photography
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- Life Sciences & Earth Sciences (AREA)
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- Biophysics (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a kind of camera and the common light path imaging devices of OCT, the device includes：OCT modules, lighting module and camera acquisition module；The light beam that OCT light source is sent is divided into sample arm light beam and reference arm light beam after deconcentrator, sample arm light beam reaches human eye after passing sequentially through the first collimation lens, the first scanning galvanometer, spectroscope, scanning lens and ophthalmoscope, then deconcentrator is reflected back, reference arm light beam enters reference arm back reflection and returns deconcentrator；The light that lighting source is sent sequentially passes through collimater, lens pillar, linear mirror, the second scanning galvanometer, spectroscope, scanning lens and ophthalmoscope and reaches human eye back reflection；The light that the lighting source of camera acquisition module is sent reaches human eye back reflection, sequentially passes through ophthalmoscope, scanning lens, spectroscope, the second scanning galvanometer, linear mirror and collector lens and reaches camera.The present invention is imaged using OCT with camera common optic path, can be accurately positioned, and guiding OCT carries out Depth Imaging, while saving space.
Description
Technical field
The present invention relates to medical imaging techniques field, more particularly to a kind of camera and the common light path imaging devices of OCT.
Background technology
OCT is called Optical coherence tomography, is a kind of imaging technique that last decade is developed rapidly, and it utilizes weak phase
The general principle of dry optical interferometer, detects biological tissue's different depth aspect to the back-reflection of incident weak coherent light or dissipates several times
Signal is penetrated, by scanning, biological tissue's two dimension or three-dimensional structure image is can obtain.Existing ophthalmology OCT image device is being carried out
During scanning, the light path of scanning camera is separated with OCT light path, causes space hold larger, and can not realize precise positioning.
The content of the invention
In view of the shortcomings of the prior art, present invention aims at provide one kind to realize precise positioning, section space-efficient
Camera and OCT common optic path imaging devices.
An object of the present invention adopts the following technical scheme that realization：
A kind of camera and the common light path imaging devices of OCT, including：OCT modules, lighting module and camera acquisition module；
The OCT modules include OCT light source, signal processor, deconcentrator, sample arm and reference arm, the signal transacting
Device is connected with the deconcentrator, the reference arm include the first collimation lens, the first scanning galvanometer, spectroscope, scanning lens and
Ophthalmoscope, the light beam that the OCT light source is sent is divided into sample arm light beam and reference arm light beam, the sample after the deconcentrator
Product arm light beam, which is passed sequentially through, arrives intelligent after first collimation lens, the first scanning galvanometer, spectroscope, scanning lens and ophthalmoscope
Eye, is then reflected back the deconcentrator, and the reference arm light beam enters the reference arm back reflection and returns the deconcentrator；
The lighting module includes lighting source, collimater, lens pillar, linear mirror and the second scanning galvanometer, the photograph
The light that Mingguang City source is sent sequentially passes through the collimater, lens pillar, linear mirror, the second scanning galvanometer, spectroscope, scanning lens
Human eye back reflection is reached with ophthalmoscope；
The camera acquisition module includes camera and collector lens, and the light that the lighting source is sent reaches anti-after human eye
Penetrate, sequentially pass through the ophthalmoscope, scanning lens, spectroscope, the second scanning galvanometer, linear mirror and collector lens and reach camera.
Further, the camera acquisition module also includes the second speculum, and the lighting source reaches human eye back reflection
It is anti-that the light returned sequentially passes through the ophthalmoscope, scanning lens, spectroscope, the second scanning galvanometer, linear mirror, collector lens and second
Penetrate mirror and reach the camera.
Further, the reference arm includes the second collimation lens and the first speculum, and the reference arm light beam passes through the
Collimated after two collimation lenses, be then passed through the first speculum back reflection and return deconcentrator.
Further, first scanning galvanometer includes X scanning galvanometers and Y scan galvanometer.
Further, the camera is line scan camera.
Further, the ophthalmoscope is two-sided even aspheric surface lens.
Compared to prior art, the beneficial effects of the present invention are：The present invention using OCT and camera using common optic path into
Picture, can be accurately positioned, and guiding OCT carries out Depth Imaging, reduces the use of optics, saves cost, saves simultaneously
Space.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow the above and other objects, features and advantages of the present invention can
Become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Brief description of the drawings
Fig. 1 is the index path of OCT modules and lighting module in the embodiment of the present invention；
Fig. 2 is the index path of camera acquisition module in the embodiment of the present invention.
In figure：1st, OCT light source；2nd, signal processor；3rd, deconcentrator；4th, the first collimation lens；5th, the first scanning galvanometer；6、
Spectroscope；7th, scanning lens；8th, ophthalmoscope；9th, human eye；10th, the second collimation lens；11st, the first speculum；12nd, lighting source；
13rd, collimater；14th, lens pillar；15th, linear mirror；16th, the second scanning galvanometer；17th, camera；18th, the second speculum；19th, optically focused
Lens.
Embodiment
Below, with reference to accompanying drawing and embodiment, the present invention is described further：
As shown in Figure 1-2, it is camera and OCT light path imaging devices, including OCT modules, illumination altogether in the embodiment of the present invention
Module and camera acquisition module；OCT modules include OCT light source 1, signal processor 2, deconcentrator 3, sample arm and reference arm, letter
Number processor 2 is connected with deconcentrator 3, and reference arm includes the first collimation lens 4, the first scanning galvanometer 5, spectroscope 6, scanning lens
7 and ophthalmoscope 8, the first scanning galvanometer 5 includes X scanning galvanometers and Y scan galvanometer, and the light beam that OCT light source 1 is sent passes through deconcentrator
Be divided into sample arm light beam and reference arm light beam after 3, sample arm light beam pass sequentially through the first collimation lens 4, the first scanning galvanometer 5,
Human eye 9 is reached after spectroscope 6, scanning lens 7 and ophthalmoscope 8, deconcentrator 3 is then reflected back, it is saturating that reference arm includes the second collimation
The speculum 11 of mirror 10 and first, reference arm light beam is collimated after the second collimation lens 10, is then passed through after the first speculum 11
It is reflected back deconcentrator 3；
Lighting module includes lighting source 12, collimater 13, lens pillar 14, linear mirror 15, the and of the second scanning galvanometer 16
Spectroscope 17, the light that lighting source 12 is sent sequentially passes through collimater 13, lens pillar 14, linear mirror 15, the second scanning galvanometer
16th, spectroscope 6, scanning lens 7 and ophthalmoscope 8 reach the back reflection of human eye 9；
Camera acquisition module includes camera 17, the second speculum 18 and collector lens 19, and camera 17 is line scan camera,
More preferably, the light that lighting source 12 is sent reaches the light of the back reflection time of human eye 9 successively to the picking rate and image quality of linear camera
By ophthalmoscope 8, scanning lens 7, spectroscope 6, the second scanning galvanometer 16, linear mirror 15, the second speculum 18 and collector lens
19 reach camera 17.
Wherein, lens pillar 14 and linear mirror 15 are mutuallyyed transfer so that the light that lighting source 12 is sent is overturn, illumination
The light that light source 12 is sent is blocked 20% reaching the back reflection of human eye 9, the veiling glare being reflected back when by linear mirror 15, by
This solves the problem of camera 17 is over-exposed；
Wherein, spectroscope 6 causes the light that OCT light source 1 is produced to be separated with the light that lighting source 12 is sent so that the He of camera 17
The signal that signal processor 2 is gathered is independent of each other.
Wherein, OCT modules share spectroscope 6, scanning lens 7 and ophthalmoscope 8, camera acquisition module and photograph with lighting module
Bright module shares linear mirror 15, the second scanning galvanometer 16, spectroscope 6, scanning lens 7 and ophthalmoscope 8, reasonable in design, saves
Space.
As further embodiment, ophthalmoscope 8 is two-sided even aspheric surface lens, makes the scanning light of sample arm light beam
Road focal plane focuses on for cambered surface, closer to the physiological structure of human eye, becomes apparent from.
Compared to prior art, the beneficial effects of the present invention are：The present invention using OCT and camera using common optic path into
Picture, can be accurately positioned, and guiding OCT carries out Depth Imaging, reduces the use of optics, saves cost, saves simultaneously
Space.
Above-mentioned embodiment is only the preferred embodiment of the present invention, it is impossible to limit the scope of protection of the invention with this,
The change and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed scope.
Claims (6)
1. a kind of camera and the common light path imaging devices of OCT, it is characterised in that including：OCT modules, lighting module and camera collection mould
Block；
The OCT modules include OCT light source, signal processor, deconcentrator, sample arm and reference arm, the signal processor with
The deconcentrator connection, the reference arm includes the first collimation lens, the first scanning galvanometer, spectroscope, scanning lens and inspection eye
Mirror, the light beam that the OCT light source is sent is divided into sample arm light beam and reference arm light beam, the sample arm after the deconcentrator
Light beam reaches human eye after passing sequentially through first collimation lens, the first scanning galvanometer, spectroscope, scanning lens and ophthalmoscope,
Then the deconcentrator is reflected back, the reference arm light beam enters the reference arm back reflection and returns the deconcentrator；
The lighting module includes lighting source, collimater, lens pillar, linear mirror and the second scanning galvanometer, the illumination light
The light that source is sent sequentially passes through the collimater, lens pillar, linear mirror, the second scanning galvanometer, spectroscope, scanning lens and inspection
Glasses reach human eye back reflection；
The camera acquisition module includes camera and collector lens, and the light that the lighting source is sent reaches human eye back reflection, according to
It is secondary to reach camera by the ophthalmoscope, scanning lens, spectroscope, the second scanning galvanometer, linear mirror and collector lens.
2. camera as claimed in claim 1 and the common light path imaging devices of OCT, it is characterised in that：The camera acquisition module also includes
Second speculum, the light that the lighting source reaches human eye back reflection time sequentially passes through the ophthalmoscope, scanning lens, light splitting
Mirror, the second scanning galvanometer, linear mirror, collector lens and the second speculum reach the camera.
3. camera as claimed in claim 1 and the common light path imaging devices of OCT, it is characterised in that：The reference arm includes the second collimation
Lens and the first speculum, the reference arm light beam are collimated after the second collimation lens, are then passed through after the first speculum anti-
It is emitted back towards deconcentrator.
4. camera as claimed in claim 1 and the common light path imaging devices of OCT, it is characterised in that：First scanning galvanometer is swept including X
Retouch galvanometer and Y scan galvanometer.
5. camera as claimed in claim 1 and the common light path imaging devices of OCT, it is characterised in that：The camera is line scan camera.
6. camera as claimed in claim 1 and the common light path imaging devices of OCT, it is characterised in that：The ophthalmoscope is that two-sided even is non-
Spherical lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710401062.7A CN107260120A (en) | 2017-05-31 | 2017-05-31 | A kind of camera and the common light path imaging devices of OCT |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710401062.7A CN107260120A (en) | 2017-05-31 | 2017-05-31 | A kind of camera and the common light path imaging devices of OCT |
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| CN107260120A true CN107260120A (en) | 2017-10-20 |
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| CN201710401062.7A Pending CN107260120A (en) | 2017-05-31 | 2017-05-31 | A kind of camera and the common light path imaging devices of OCT |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108371542A (en) * | 2018-04-04 | 2018-08-07 | 中国科学院苏州生物医学工程技术研究所 | A kind of eyeground multi-modal synchronization imaging system |
| CN108937842A (en) * | 2018-07-09 | 2018-12-07 | 执鼎医疗科技（杭州）有限公司 | A kind of OCT system integrating confocal fundus imaging |
| CN109330558A (en) * | 2018-09-29 | 2019-02-15 | 执鼎医疗科技（杭州）有限公司 | For increasing the OCT system of fundus imaging range |
| CN109620131A (en) * | 2018-12-14 | 2019-04-16 | 佛山科学技术学院 | Optical path microlens array multiple beam optical coherence elasticity measurement system and method altogether |
| CN113237891A (en) * | 2021-03-10 | 2021-08-10 | 深圳市华讯方舟光电技术有限公司 | Detection system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104224109A (en) * | 2014-10-16 | 2014-12-24 | 深圳市斯尔顿科技有限公司 | Fundus camera combined with OCT system |
| CN105451638A (en) * | 2013-09-19 | 2016-03-30 | 诺华股份有限公司 | Integrated oct-refractometer system for ocular biometry |
| CN207721799U (en) * | 2017-05-31 | 2018-08-14 | 执鼎医疗科技（杭州）有限公司 | A kind of camera is total to light path imaging device with OCT |
-
2017
- 2017-05-31 CN CN201710401062.7A patent/CN107260120A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105451638A (en) * | 2013-09-19 | 2016-03-30 | 诺华股份有限公司 | Integrated oct-refractometer system for ocular biometry |
| CN104224109A (en) * | 2014-10-16 | 2014-12-24 | 深圳市斯尔顿科技有限公司 | Fundus camera combined with OCT system |
| CN207721799U (en) * | 2017-05-31 | 2018-08-14 | 执鼎医疗科技（杭州）有限公司 | A kind of camera is total to light path imaging device with OCT |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108371542A (en) * | 2018-04-04 | 2018-08-07 | 中国科学院苏州生物医学工程技术研究所 | A kind of eyeground multi-modal synchronization imaging system |
| CN108937842A (en) * | 2018-07-09 | 2018-12-07 | 执鼎医疗科技（杭州）有限公司 | A kind of OCT system integrating confocal fundus imaging |
| CN109330558A (en) * | 2018-09-29 | 2019-02-15 | 执鼎医疗科技（杭州）有限公司 | For increasing the OCT system of fundus imaging range |
| CN109620131A (en) * | 2018-12-14 | 2019-04-16 | 佛山科学技术学院 | Optical path microlens array multiple beam optical coherence elasticity measurement system and method altogether |
| CN113237891A (en) * | 2021-03-10 | 2021-08-10 | 深圳市华讯方舟光电技术有限公司 | Detection system |
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Application publication date: 20171020 |
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