CN102885608A - Eye imaging system and method - Google Patents
Eye imaging system and method Download PDFInfo
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- CN102885608A CN102885608A CN2011102043686A CN201110204368A CN102885608A CN 102885608 A CN102885608 A CN 102885608A CN 2011102043686 A CN2011102043686 A CN 2011102043686A CN 201110204368 A CN201110204368 A CN 201110204368A CN 102885608 A CN102885608 A CN 102885608A
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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
- A61B3/14—Arrangements specially adapted for eye photography
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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
- A61B3/15—Arrangements specially adapted for eye photography with means for aligning, spacing or blocking spurious reflection ; with means for relaxing
- A61B3/154—Arrangements specially adapted for eye photography with means for aligning, spacing or blocking spurious reflection ; with means for relaxing for spacing
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Abstract
The invention discloses an eye imaging system and method, which relate to the field of ophthalmological optics instruments and are used for eliminating ghosts during eye examination and imaging at high quality. The system comprises a light source module (101), a light-splitting module (102), a common light path module (103), eyes (104), eye grounds (105), an image receiver (106), a light source power supply module (201), an image receiver driving module (202), a controlling and processing display module (203) and a motion driving module (204), wherein the motion driving module (204) is connected with and used for synchronously driving the light source module (101) and the image receiver driving module (201) to move; and light rays of the light source module (101) are reflected to the image receiver (106) for exposing after being used for scanning the eyes (104), so that the light rays are spliced, processed, imaged, displayed or record by using the controlling and processing display module (203). The system and the method are mainly applied to eye ground examination.
Description
Technical field
The present invention relates to the opticianry instrument field, be specifically related to a kind of system and method for ocular imaging.
Background technology
The optical instrument that detects or take a picture for eye at present, generally comprise illumination path and observation light path, illumination path is used for illuminating observed person's eyes, its light that reflects shines on observer's the eye or observation device by the observation light path again, to be used for observing and taking the health status that eyes comprise the optical fundus.
But because patient's eye complex structure, concrete physiological tissue situation is also varied, especially optical instrument be used for to be observed and when taking pictures, cornea and the unnecessary reflected light that connects an objective lens surface etc. are through forming ghost in a lot of situations behind the optical instrument, thereby reduced the overall image quality of observing and taking, therefore with regard to necessary ghost and the various veiling glare in whole optical system, eliminated.
Existing ocular imaging optical instrument adopts the way of stain plate or annular diaphragm to eliminate ghost and veiling glare more, and specifically, there is following defective in these devices:
1. can not eliminate ghost and veiling glare fully, the picture quality that obtains is still relatively poor.
2. illumination path and observation light path are independent respectively, and cost is higher.
3. eliminate the optical texture relative complex of ghost and veiling glare, volume ratio is huger.
4. when adopting annular diaphragm, the light source utilization rate is lower, so energy consumption is relatively large.
5. the luminous flux that enters patient's ophthalmic is more, easily causes the ophthalmic uncomfortable of clients.
Do not see yet in the market and overcome above defective, image quality is higher, structure is relatively simple, cost is low, less energy consumption and to imaging system and the method for the little elimination ghost better effects if of patient's ocular side effect.
Summary of the invention
The object of the invention is to overcome the deficiency that prior art exists, provide never see on a kind of market can overcome these defectives, practical function, well behaved ocular imaging system and method.
The present invention adopts with following technical proposals:
System of the present invention is by light source module 101, spectral module 102, common optical pathways module 103, eyes 104, optical fundus 105, picture receiver 106; Light source power supply module 201, picture receiver driver module 202, control processes and displays module 203, motion driver module 204 form; Its creationary summary of the invention is that described light source module 101 is along the radial motion of described light source module 101 with described spectral module 102 formed upstream illumination paths; Described picture receiver 106 is along the radial motion of described spectral module 102 with described picture receiver 106 formed downstream observation light paths simultaneously; Described motion driver module 204 is connected respectively with described light source module 101, described picture receiver 106, with the synchronized movement of the described light source module 101 of direct control, described picture receiver 106.
A kind of optical arrangement is: the light that described light source module 101 sends is after described spectral module 102 reflections, scan through 103 pairs of described eyes 104 of described common optical pathways module again, the light that reflects arrives described picture receiver 106 to carry out imaging again through after the described common optical pathways module 103 after described spectral module 102 refractions.
Another kind of optical arrangement is: the light that described light source module 101 sends is after described spectral module 102 refractions, scan through 103 pairs of described eyes 104 of described common optical pathways module again, the light that reflects arrives described picture receiver 106 to carry out imaging again through after the described common optical pathways module 103 after described spectral module 102 reflections.
Described picture receiver 106 is that line array sensor or area array sensor use as line array sensor, described picture receiver 106 carries out signal and is connected with described picture receiver driver module 202, control processes and displays module 203 orders, the electronic signal information that described control processes and displays module 203 can be spliced the described core exposure area 200 that described picture receiver driver module 202 transmits is all or part of with the eyes image 300 that forms larger zone, and processes, records or show.
The motion of described light source module 101, picture receiver 106 preferably can be uniform motion, so that realization is even to the illuminating effect of described eyes 104, all even imaging effect is even for exposure effect.The motion of described light source module 101, picture receiver 106 can be unidirectional once motion, also can be to move back and forth.Described motion driver module 204 carries out signal with described control processes and displays module 203 and is connected, and described control processes and displays module 203 can be controlled the motion that described motion driver module 204 removes to drive described light source module 101, picture receiver 106.
Wherein, described light source module 101 is comprising on the basis of light source device, can also all or part ofly comprise condenser lens group, light balancing device, illumination diaphragm.The emergent ray of described light source module 101 preferably can form band light source.Described spectral module 102 can be Amici prism, also can be plane beam splitter, to reflect by a certain percentage and transmitted ray.Described common optical pathways module 103 can comprise the projectoscope group and connect an object lens.
Preferably the light that sends of described light source module 101 can scan irradiation through the described optical fundus 105 of described spectral module 102,103 pairs of described eyes 104 of common optical pathways module.
After the present invention adopts new innovative technology scheme, through test, reflect back in the light of described picture receiver spare 106 veiling glare less, be difficult to form again ghost.
Its significant advantage and beneficial effect specifically also are embodied in the following aspects:
1. because adopted mobile light source module, so be achieved penlight scanning, thereby can have utilized narrow slit to eliminate unnecessary light to temporarily the do not expose irradiation at position of eyes, started with from the source, eliminate possible unnecessary veiling glare, can obtain good observation and photographic images.
2. because adopted mobile picture receiver, read switching signal so be achieved penlight exposure and small core zone, thereby when further having eliminated light and in the system that forms through optical instrument and eyes, having propagated, various diffuse-reflectance, the formed unnecessary veiling glare of systematic error have further guaranteed picture quality.
3. illumination and observation imaging optical path are to realize in succinct as far as possible common optical pathways.
4. used optics is less, is easy to realize, cost is lower.
5. control is simple, and departure is less.
6. the light that needs can be less, so the power consumption of light source and heat radiation also can obtain the reduction of certain amplitude.
7. can use band light source to throw light on as patient's eye, the luminous flux that enters patient's eye is less, can reduce in a large number light to the stimulation of patient's eye, so that the patient is comparatively comfortable when checking, the patient is easy to adapt to.
Description of drawings
Fig. 1 is a kind of complete schematic of the embodiment of the invention.
Fig. 2 is a kind of embodiment light path part schematic diagram of light source module of the present invention, line array sensor motion.
Fig. 3 is the another kind of embodiment part light path schematic diagram of light source module of the present invention, line array sensor motion.
Fig. 4 is optical fundus frontlighting scanning schematic diagram.
Fig. 5 is when adopting line array sensor, and light belt imaging and line array sensor be the schematic diagrams of exposure all.
Fig. 6 is the schematic diagram of the final imaging of control processes and displays module
Among Fig. 1-6: light source module 101, spectral module 102, common optical pathways module 103, eyes 104, optical fundus 105, picture receiver 106, core scanning area 100; Light source power supply module 201, picture receiver driver module 202, control processes and displays module 203, motion driver module 204, core exposure area 200; Eyes image 300.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is further elaborated again:
In a kind of schematic diagram of Fig. 1 embodiment of the invention, system is by light source module 101, spectral module 102, common optical pathways module 103, eyes 104, optical fundus 105, picture receiver 106; Light source power supply module 201, picture receiver driver module 202, control processes and displays module 203, motion driver module 204 form.
Described light source module 101 is along the radial motion of described light source module 101 with described spectral module 102 formed upstream illumination paths; Described picture receiver 106 is along the radial motion of described spectral module 102 with described picture receiver 106 formed downstream observation light paths simultaneously; Described motion driver module 204 is connected respectively with described light source module 101, described picture receiver 106, with the synchronized movement of the described light source module 101 of direct control, described picture receiver 106.
Wherein, described light source module 101 is comprising on the basis of light source device, can also all or part ofly comprise condenser lens group, light balancing device, illumination diaphragm.The emergent ray of described light source module 101 preferably can form band light source.Described spectral module 102 can be Amici prism, also can be plane beam splitter.The situation of the light-splitting devices such as plane beam splitter, the technical staff of this professional field should be understood that other light-splitting devices also can reflect and transmitted ray by a certain percentage.Described common optical pathways module 103 can comprise the projectoscope group and connect an object lens.
Described picture receiver 106 is that line array sensor or area array sensor use as line array sensor, and those skilled in the art should be understood that area array sensor also can replace line array sensor to play same purpose.Described picture receiver 106 carries out signal and is connected with described picture receiver driver module 202, control processes and displays module 203 orders, the electronic signal information that described control processes and displays module 203 can be spliced the described core exposure area 200 that described picture receiver driver module 202 transmits is all or part of with the eyes image 300 that forms larger zone, and processes, records or show.
The motion of described light source module 101, picture receiver 106 preferably can be uniform motion, so that realization is even to the illuminating effect of described eyes 104, all even imaging effect is even for exposure effect.The motion of described light source module 101, picture receiver 106 can be unidirectional once motion, also can be to move back and forth.Described motion driver module 204 carries out signal with described control processes and displays module 203 and is connected, and described control processes and displays module 203 can be controlled the motion that described motion driver module 204 removes to drive described light source module 101, picture receiver 106.
Preferably the light that sends of described light source module 101 can scan irradiation through the described optical fundus 105 of described spectral module 102,103 pairs of described eyes 104 of common optical pathways module, that is to say that the present invention can check for each position to described eyes 104 or take, also can be used for examination of ocular fundus or shooting in emphasis ground.
These innovative contents all are suitable for for the embodiment of following Fig. 2-3.
In a kind of embodiment light path part schematic diagram of Fig. 2 light source module of the present invention, line array sensor motion, the light that described light source module 101 sends is after described spectral module 102 reflections, scan through 103 pairs of described eyes 104 of described common optical pathways module again, the light that reflects arrives described picture receiver 106 to carry out imaging again through after the described common optical pathways module 103 after described spectral module 102 refractions.
In a kind of embodiment light path part schematic diagram of Fig. 3 light source module of the present invention, line array sensor motion, the light that described light source module 101 sends is after described spectral module 102 refractions, scan through 103 pairs of described eyes 104 of described common optical pathways module again, the light that reflects arrives described picture receiver 106 to carry out imaging again through after the described common optical pathways module 103 after described spectral module 102 reflections.
Among Fig. 4, the scanning implementation process of illumination scanning ray on described optical fundus 105 illustrated, what preferably show among the figure is stripscan.At each constantly, make the least possible irradiate light the least possible position to the described optical fundus 105, clearly showing does not almost have stray illumination to be mapped on the described optical fundus 105; Except described core scanning area 100, other positions of 105 both sides, described optical fundus almost can not get any irradiation.
Among Fig. 5, when described picture receiver 106 is line array sensor, it all exposes, only can form described core exposure area 200, when the follow-up electronic signal that described picture receiver 106 is changed out reads, only read the signal of described core exposure area 200, described eyes 104 the above core scanning area 100 outer other angle light that come through the diffuse-reflectance propagation are shielded, also excised some veiling glares of optical system self.
Among Fig. 6, through the synthetic described eyes image 300 of described control processes and displays module 203 splicings, schematically shown " by in the multiple image not with a plurality of exposure bands of ghost be combined to form a new frame complete not with the described eyes image 300 of ghost ".
Claims (12)
1. the system and method for an ocular imaging, system comprises light source module (101), spectral module (102), common optical pathways module (103), eyes (104), optical fundus (105), picture receiver (106), light source power supply module (201), picture receiver driver module (202), control processes and displays module (203), motion driver module (204), it is characterized in that
Described light source module (101) is along the radial motion of described light source module (101) with the formed upstream of described spectral module (102) illumination path;
Described picture receiver (106) is along the radial motion of the formed downstream observation of described spectral module (102) and described picture receiver (106) light path simultaneously;
Described motion driver module (204) is connected respectively with described light source module (101), described picture receiver (106), with the synchronized movement of the described light source module of direct control (101), described picture receiver (106).
2. the system and method for ocular imaging according to claim 1, it is characterized in that, the light that described light source module (101) sends is after described spectral module (102) reflection, through described common optical pathways module (103) described eyes (104) are scanned again, after the light described common optical pathways module of process (103) that reflects, after described spectral module (102) refraction, arrive described picture receiver (106) to carry out imaging again.
3. the system and method for ocular imaging according to claim 1, it is characterized in that, the light that described light source module (101) sends is after described spectral module (102) refraction, through described common optical pathways module (103) described eyes (104) are scanned again, after the light described common optical pathways module of process (103) that reflects, after described spectral module (102) reflection, arrive described picture receiver (106) to carry out imaging again.
4. according to claim 1, the system and method for 2 or 3 described ocular imagings, it is characterized in that, described picture receiver (106) is that line array sensor or area array sensor use as line array sensor, described picture receiver (106) and described picture receiver driver module (202), control processes and displays module (203) order is carried out signal and is connected, the electronic signal information that described control processes and displays module (203) can be spliced the described core exposure area (200) that described picture receiver driver module (202) transmits is all or part of with the eyes image (300) that forms larger zone, and processes, record or show.
5. according to claim 1, the system and method for 2 or 3 described ocular imagings, it is characterized in that, the motion of described light source module (101), picture receiver (106) preferably can be uniform motion, so that realization is even to the illuminating effect of described eyes (104), all even imaging effect is even for exposure effect.
6. according to claim 1, the system and method for 2 or 3 described ocular imagings, it is characterized in that, the motion of described light source module (101), picture receiver (106) can be unidirectional once motion, also can be to move back and forth.
7. according to claim 1, the system and method for 2 or 3 described ocular imagings, it is characterized in that, described motion driver module (204) carries out signal with described control processes and displays module (203) and is connected, and described control processes and displays module (203) can be controlled the motion that described motion driver module (204) removes to drive described light source module (101), picture receiver (106).
8. according to claim 1, the system and method for 2 or 3 described ocular imagings, it is characterized in that, described light source module (101) is comprising on the basis of light source device, can also all or part ofly comprise condenser lens group, light balancing device, illumination diaphragm.
9. according to claim 1, the system and method for 2 or 3 described ocular imagings, it is characterized in that, the emergent ray of described light source module (101) preferably can form band light source.
10. according to claim 1, the system and method for 2 or 3 described ocular imagings, it is characterized in that, described spectral module (102) can be Amici prism, also can be plane beam splitter, to reflect by a certain percentage and transmitted ray.
11. according to claim 1, the system and method for 2 or 3 described ocular imagings, it is characterized in that, described common optical pathways module (103) can comprise the projectoscope group and connect an object lens.
12. according to claim 1, the system and method for 2 or 3 described ocular imagings, it is characterized in that, preferably the light that sends of described light source module (101) can scan irradiation to the described optical fundus (105) of described eyes (104) through described spectral module (102), common optical pathways module (103).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110204368.6A CN102885608B (en) | 2011-07-21 | 2011-07-21 | Eye imaging system and method |
| PCT/CN2012/078974 WO2013010506A1 (en) | 2011-07-21 | 2012-07-20 | System and method for eye-imaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110204368.6A CN102885608B (en) | 2011-07-21 | 2011-07-21 | Eye imaging system and method |
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| Publication Number | Publication Date |
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| CN102885608A true CN102885608A (en) | 2013-01-23 |
| CN102885608B CN102885608B (en) | 2014-10-08 |
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| CN201110204368.6A Active CN102885608B (en) | 2011-07-21 | 2011-07-21 | Eye imaging system and method |
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| CN (1) | CN102885608B (en) |
| WO (1) | WO2013010506A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109152523A (en) * | 2016-03-26 | 2019-01-04 | 优健科技美国有限公司 | Non-intrusion type determines the device of pathophysiological condition |
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| CN1901833A (en) * | 2004-01-02 | 2007-01-24 | 视觉仪器控股有限公司 | Devices to facilitate alignment and focussing of a fundus camera |
| US20080030681A1 (en) * | 2005-01-21 | 2008-02-07 | Guenter Link | Focusing Device for Ophthalmological Appliances, Especially for Fundus Cameras, and Method for the Use Thereof |
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| CN202198574U (en) * | 2011-07-21 | 2012-04-25 | 上海美沃精密仪器有限公司 | Eye imaging device |
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2011
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2012
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| US6304723B1 (en) * | 1994-10-11 | 2001-10-16 | Canon Kk | Retinal camera |
| JPH09253052A (en) * | 1996-03-25 | 1997-09-30 | Canon Inc | Eyegrounds image pickup device |
| CN1411782A (en) * | 2001-10-15 | 2003-04-23 | 佳能株式会社 | Fundus photography device |
| CN1901833A (en) * | 2004-01-02 | 2007-01-24 | 视觉仪器控股有限公司 | Devices to facilitate alignment and focussing of a fundus camera |
| US20080030681A1 (en) * | 2005-01-21 | 2008-02-07 | Guenter Link | Focusing Device for Ophthalmological Appliances, Especially for Fundus Cameras, and Method for the Use Thereof |
| CN101172035A (en) * | 2006-10-31 | 2008-05-07 | 株式会社拓普康 | Ophthalmologic photographing apparatus |
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| CN109152523A (en) * | 2016-03-26 | 2019-01-04 | 优健科技美国有限公司 | Non-intrusion type determines the device of pathophysiological condition |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102885608B (en) | 2014-10-08 |
| WO2013010506A1 (en) | 2013-01-24 |
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Address after: 200237 Shanghai city Minhang District Chunshen Road 1985 Lane 69 Building No. 2 A District Applicant after: Shanghai MediWorks Precision Instruments Co., Ltd. Address before: 200233 Shanghai Road, Guiping, No. 680 Venture Center building, room 33, building 817, room Applicant before: Shanghai MediWorks Precision Instruments Co., Ltd. |
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Inventor after: Yan Sufeng Inventor after: Wei Yue Inventor after: Chen Wenguang Inventor after: Kong Zhaosong Inventor before: Yan Sufeng Inventor before: Wei Yue Inventor before: Chen Wenguang Inventor before: Kong Zhaosong Inventor before: Hu Wenru |
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