CN2728420Y - Pupil imaging device of living human eye retina cell imaging instrument - Google Patents
Pupil imaging device of living human eye retina cell imaging instrument Download PDFInfo
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- CN2728420Y CN2728420Y CN 200420060167 CN200420060167U CN2728420Y CN 2728420 Y CN2728420 Y CN 2728420Y CN 200420060167 CN200420060167 CN 200420060167 CN 200420060167 U CN200420060167 U CN 200420060167U CN 2728420 Y CN2728420 Y CN 2728420Y
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- human eye
- imaging device
- pupil
- retina cell
- eye retina
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- 238000003384 imaging method Methods 0.000 title claims abstract description 34
- 210000001747 pupil Anatomy 0.000 title claims abstract description 28
- 210000001525 retina Anatomy 0.000 title claims abstract description 22
- 230000004075 alteration Effects 0.000 claims abstract description 14
- 238000005286 illumination Methods 0.000 claims abstract description 5
- 230000003044 adaptive effect Effects 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 abstract description 21
- 230000000007 visual effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 238000012937 correction Methods 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 3
- 229910052724 xenon Inorganic materials 0.000 description 3
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 3
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The pupil imaging device of the living human eye retina cell imager is arranged on the human eye retina cell imager which comprises a beacon light source, a beacon light collimation system, a caliber matching system, an optical self-adaptive system for controlling and guiding a deformable reflector to correct the aberration according to the measured aberration of a Hartmann wavefront sensor, an illumination and imaging system and the like, and a special pupil imaging device which consists of an auxiliary observation light source, a spectroscope, a pupil imaging objective lens and a small CCD is arranged near the front of a human eye bracket. The human eye retina cell imager can be more accurately and conveniently adjusted under the guidance of the imaging device pupil imaging device, so that the visual axis of the observed human eye coincides with the optical axis of the imager.
Description
This utility model belongs to medical checkout equipment, especially living human eye retina image-forming manufacturing field of equipment.
Background technology
Adaptive optical technique is just to begin the new optical technique that grows up the external seventies, it is by the dynamic wavefront error of real-time detection-control-correcting optical system, thereby thereby make optical system have the ability that automatic adaptation change of external conditions remains optimum Working, thereby improved imaging resolution greatly.Living human eye retina cell imager is a principle of utilizing adaptive optics, small tissues such as human eye optical fundus retina cell and blood capillary is carried out the Medical Instruments of high-resolution imaging.Living human eye is equivalent to an optical system, has various aberrations, adopts the adaptive optics alignment technique, then can correction time and the space on living human eye aberrations of change at random all, thereby obtain high resolution optic cell image near diffraction limit.
Present patent application person has at first carried out human eye retina's high-resolution imaging adaptive optical technique research work at home from beginning in 1997, micro-strain mirror principle and manufacturing, human eye aberration Wavefront sensor principle and key technologies such as human eye aberration measurement and reconstruct have successively been broken through, having set up in the world in 2000, first cover has successfully carried out the adaptive optics of living human eye aberration and has proofreaied and correct based on practical small-sized human eye retina's high-resolution imaging adaptive optics experimental provision of whole integrated form micro-strain mirror.Living human eye retina cell imager adopts small-sized deformation reflection mirror as correcting element.In the imaging process, inject ophthalmic with a branch of semiconductor laser from pupil, form a hot spot on the optical fundus after human eye is assembled, penetrate from pupil behind fundus reflex, the wavefront error of this Shu Guang is exactly the aberration of human eye.Measure this aberration with small-sized Hartmann sensor, and guiding and controlled deformation reflecting mirror are proofreaied and correct to this aberration.After correction is finished,, after optical system is amplified, just can utilize imaging system to photograph high-resolution retina cell and blood capillary image with flash lamp illumination optical fundus retina.
During instrument work, at first to adjust observed position of human eye, make human eye's visual axis and instrument optical axis coincidence, conventional method of adjustment needs the operator to grope to adjust with the detected person to adjust voluntarily according to the target that instrument provides, make the optical axis of instrument overlap operating difficulties with the pupil center location of observed human eye.
The purpose of this utility model is a kind of special-purpose pupil imaging device of design, is used for living human eye retina cell imager, makes it to have the operator of allowing and directly aims at, have aligning more accurate, adjust advantage more easily.
Summary of the invention
The purpose of this utility model realizes by following means.
Human eye retina's cell imaging instrument pupil imaging device is arranged on by beacon light source, beacon beam colimated light system, bore matching system, measure aberration control and guiding deformation reflection mirror according to Hartmann wave front sensor carries out on human eye retina's cell imaging instrument that gauged optics Adaptable System, illumination and imaging system etc. form this aberration, at the human eye carriage the one special-purpose pupil imaging device that is made of supplementary observation light source, spectroscope, pupil image-forming objective lens and small ccd camera is set just nearby.
After adopting design as above, human eye retina's cell imaging instrument can make the operator pass through the guiding of pupil imaging device, adjusts human eye's visual axis and instrument optical axis coincidence more accurately and easily.
Description of drawings:
Fig. 1 is the index path that adopts human eye retina's cell imaging instrument of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing structure of the present utility model is described in further detail.
In Fig. 1,
1: observed human eye 2:0 spectroscope 3:1 spectroscope 4:2 spectroscope
5:1 reflecting mirror 6: beacon beam colimated light system 7:LD semiconductor laser
8: narrow band filter slice 9: lamp optical system 10: xenon lamp 11: Control Computer
12: high-voltage amplifier 13:1 bore matching system 14: deformation reflection mirror
15:2 bore matching system 16:2 reflecting mirror 17:3 spectroscope
18: Hartmann wave front sensor 19:3 reflecting mirror 20: image-forming objective lens 21: imaging CCD
22: pupil image-forming objective lens 23: small ccd 24: near-infrared luminous diode
As shown in Figure 1, in the side nearby of human eye carriage the one special-purpose pupil imaging device that is made of supplementary observation light source, spectroscope, pupil image-forming objective lens and small ccd camera is set.Special-purpose pupil imaging device is made up of the near-infrared luminous diode of supplementary observation light source (24), No. 0 spectroscope (2), pupil image-forming objective lens (22) and small ccd (23).When special-purpose pupil imaging device is worked, at first use the throw light on pupil of observed human eye (1) of near-infrared luminous diode (24), reflect by No. 0 spectroscope (2), be imaged on small ccd (23) target surface by the pupil of pupil image-forming objective lens (22) observed human eye (1), again with the video frequency collection card in the video signal input Control Computer (11) of small ccd (23) output, be presented in real time on computer (11) display, and draw in the viewing area and to aim at cross hairs and aligning garden ring.After finishing aligning, system carries out the optics adaptively correcting again, the beacon beam that sends by LD semiconductor laser (7), collimate, expand bundle by beacon beam colimated light system (6), after No. 1 reflecting mirror (5) reflection, see through No. 2 spectroscopes (4) again,, see through No. 0 spectroscope (2) and enter observed human eye (1) through No. 1 spectroscope (3) reflection; The beacon beam of observed human eye (1) optical fundus scattering sees through No. 0 spectroscope (2) and No. 1 spectroscope (3) sees through No. 1 bore matching system (13) again, reflect through deformation reflection mirror (14), by No. 2 bore matching systems (15), to No. 2 reflecting mirrors (16), reflected light reflects into Hartmann wave front sensor (18) through No. 3 spectroscopes (17), Hartmann's wavefront sensing (18) is delivered to Control Computer (11) with the error signal that records, be processed into control signal, after control signal send high-voltage amplifier (12) to amplify, be applied on the deformation reflection mirror (14), thus the wavefront error in the correction light path; Error correction finishes, Control Computer (11) is controlled to picture lighting source xenon lamp (10) work, the light that imaging lighting source xenon lamp (10) sends is through lamp optical system (9), narrow band pass filter (8), through No. 2 spectroscopes (4) and No. 1 spectroscope (3) reflection, see through No. 0 spectroscope (2) and advance human eye pupil (1), the illumination optical fundus, the light of fundus reflex is through No. 0 spectroscope (2), No. 1 spectroscope (3), see through No. 1 bore matching system (13), reflect through deformation reflection mirror (14) again, by No. 2 bore matching systems (15), through No. 2 reflecting mirrors (16), see through No. 3 spectroscopes (17) and No. 3 reflecting mirrors (19) and reflect into image-forming objective lens (20), image in CCD camera (21) target surface.Under the guiding of imager pupil imaging device, can adjust the relative position of human eye's visual axis and instrument optical axis more accurately and easily, make observed human eye's visual axis and instrument optical axis coincidence, thereby obtain high-resolution human eye retina picture.
Claims (2)
1, the pupil imaging device of living human eye retina cell imager, be arranged on by beacon light source, beacon beam colimated light system, bore matching system, measure aberration control and guiding deformation reflection mirror according to Hartmann wave front sensor this aberration is carried out on the living human eye retina cell imager that gauged ADAPTIVE OPTICS SYSTEMS, illumination and imaging system etc. form, it is characterized in that, the one special-purpose pupil imaging device that is made of supplementary observation light source, spectroscope, pupil image-forming objective lens and small ccd is set in the side nearby of human eye carriage.
According to the pupil imaging device of the described living human eye retina cell of claim 1 imager, it is characterized in that 2, described supplementary observation light source is near-infrared luminous diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420060167 CN2728420Y (en) | 2004-07-09 | 2004-07-09 | Pupil imaging device of living human eye retina cell imaging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420060167 CN2728420Y (en) | 2004-07-09 | 2004-07-09 | Pupil imaging device of living human eye retina cell imaging instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2728420Y true CN2728420Y (en) | 2005-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420060167 Expired - Fee Related CN2728420Y (en) | 2004-07-09 | 2004-07-09 | Pupil imaging device of living human eye retina cell imaging instrument |
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| CN (1) | CN2728420Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102188231A (en) * | 2011-05-23 | 2011-09-21 | 中国科学院光电技术研究所 | Zooming multi-channel human eye retina microscopic imaging system |
| CN101926640B (en) * | 2009-06-22 | 2012-05-09 | 中国科学院光电技术研究所 | Living human eye retina dynamic imaging instrument |
-
2004
- 2004-07-09 CN CN 200420060167 patent/CN2728420Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101926640B (en) * | 2009-06-22 | 2012-05-09 | 中国科学院光电技术研究所 | Living human eye retina dynamic imaging instrument |
| CN102188231A (en) * | 2011-05-23 | 2011-09-21 | 中国科学院光电技术研究所 | Zooming multi-channel human eye retina microscopic imaging system |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |