CN105615825A - Cornea surface contour obtaining system and use method thereof - Google Patents
Cornea surface contour obtaining system and use method thereof Download PDFInfo
- Publication number
- CN105615825A CN105615825A CN201511002661.9A CN201511002661A CN105615825A CN 105615825 A CN105615825 A CN 105615825A CN 201511002661 A CN201511002661 A CN 201511002661A CN 105615825 A CN105615825 A CN 105615825A
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- CN
- China
- Prior art keywords
- cornea
- micro
- light
- switchboard
- chip
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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
- A61B3/107—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining the shape or measuring the curvature of the cornea
Abstract
The invention provides a cornea surface contour obtaining system and a use method thereof. The system comprises a shell, an optical projection unit, an optical shooting unit, a control panel and a display screen; the optical projection unit is arranged in the shell and used for projecting tandem arranged light rays into the human eye; the optical shooting unit is arranged in the shell and used for collecting light rays reflected from the human eye; the control panel is arranged in the shell and connected with the optical projection unit and the optical shooting unit; the display screen is arranged in the shell and connected with the control panel and the optical shooting unit. The cornea surface contour obtaining system and the use method thereof have the following advantages that surface contour data of the front surface and the rear surface of a cornea are obtained simultaneously, and the surface contour accuracy is greatly improved, particularly, in the central area of the cornea; complex rotary motion is not needed, tomoscan in all directions can be achieved by only depending on control over micromirror devices, the scanning speed is high, and the cornea surface contour data can be rapidly obtained; the size is small, and carrying and using can be convenient for a doctor.
Description
Technical field
The present invention relates to a kind of opticianry inspection and obtain the system and method for the relevant data of cornea, particularly a kind of cornea face type obtains system and using method thereof.
Background technology
In medical treatment detects, often volume ratio is bigger for the instrument that existing cornea face type obtains, doctor cannot accomplish to use quickly and easily in the occasion such as make the rounds of the wards, make a round of visits, and existing installation is not high for the precision of the face type data gathering of cornea central zone, and only can obtain front surface data, the face type data of rear surface cannot obtain.
Summary of the invention
For defect of the prior art, it is an object of the invention to provide a kind of solution existing acquisition cornea face type data volume big, the cornea face type of problem that can not be portable obtains system and using method thereof.
For solving the problems of the technologies described above, a kind of cornea face provided by the invention type obtains system, comprising: housing; Optical projection unit, described optical projection unit is arranged in described housing, and described optical projection unit is used for projecting the light in longitudinal rows to people's eye; Optical pickup unit, described optical pickup unit is arranged in described housing, the light that described optical pickup unit reflects from people's eye for gathering; Switchboard, described switchboard is arranged in described housing, and described switchboard is connected with described optical projection unit and described optical pickup unit; Display screen, described display screen is arranged in described housing, and described display screen is connected with described switchboard and described optical pickup unit.
Preferably, described optical projection unit comprises: light source; Dichroscope, described dichroscope is arranged in the light path of described light source; Micro-aobvious chip, described micro-aobvious chip is arranged in the light path of described dichroscope, and described micro-aobvious chip is connected with described switchboard; Projection lens, described projection lens is arranged in the light path of described micro-aobvious chip.
Preferably, described micro-aobvious chip is provided with micromirror array.
Preferably, described micro-aobvious chip is digital light process chip.
Preferably, the image sensor that described optical pickup unit comprises shooting camera lens and mates mutually with described shooting camera lens; Wherein said image sensor is connected with described switchboard and described display screen.
Preferably, being provided with battery in described housing, described battery is connected with described optical projection unit, described optical pickup unit and described switchboard.
Cornea face type obtains a using method for system, comprises the steps:
Step 1, light source works, the light that light source is sent by dichroscope carries out closing light, and the light after closing light is invested micro-aobvious chip;
Step 2, micro-aobvious chip by the micromirror array on micro-aobvious chip by ray cast on the position of cornea eye;
Step 3, the light reflected from people's eye is gathered by image sensor, obtains the eyes prosthomere faultage image on correspondence position;
Step 4, the image collected is processed by switchboard.
Preferably, in step 2, light is projected by column on the position of cornea eye by micro-aobvious chip by the micromirror array on micro-aobvious chip.
Preferably, in step 3, it is treated to the marginal date that switchboard extracts each image front and rear surfaces, and by each image by the position superposition of shooting order, synthesis obtains the face type data of cornea eye front and rear surfaces in whole three-dimensional space.
Compared with prior art, the useful effect of the present invention is as follows:
1, obtain the face type data of cornea front and rear surfaces simultaneously, and significantly improve surface precision, especially in cornea central zone;
2, without the need to the rotary motion of complexity, only rely on the control to micro mirror element, the tomoscan in all directions can be realized, and sweep velocity is fast, can obtain cornea face type data fast;
3, volume is little, can allow doctor's portable use.
Accompanying drawing explanation
By reading with reference to the detailed description that non-limiting example is done by the following drawings, the further feature object of the present invention and advantage will become more obvious.
Fig. 1 is that cornea face of the present invention type obtains system side pseudosection;
Fig. 2 is that cornea face of the present invention type obtains system top plan view.
In figure:
1-battery 2-switchboard 3-display screen
The micro-aobvious chip 6-dichroscope of 4-projection lens 5-
7-light source 8-takes camera lens 9-image sensor
10-housing
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail. The technician contributing to this area is understood the present invention by following examples further, but does not limit the present invention in any form. It should be appreciated that to those skilled in the art, without departing from the inventive concept of the premise, it is also possible to make some changes and improvements. These all belong to protection scope of the present invention.
As shown in Figure 1 and Figure 2, a kind of cornea face provided by the invention type obtains system, comprising: battery 1 is powered for whole instrument, makes it possess portable ability, and operator the housing 10 of hand-held instrument can carry out shooting and scan.
Light source 7 is divided into red green blue three-color, and switchboard 2 controls the brightness of each color respectively, and red, green, blue three coloured light sent from light source 7 is undertaken closing light, the color light required for red, green, blue three coloured light is synthesized projection by dichroscope 6.
Through light conjunction light to micro-aobvious chip 5 (adopting digital light process chip in the present embodiment, DLP), micro-aobvious chip 5 (adopting digital light process chip in the present embodiment, DLP) has a large amount of micro-reflective mirrors, become row-column arrangement.
Micro-aobvious controller in switchboard 2 can control micro-aobvious chip 5 with certain frequency and (adopt digital light process chip in the present embodiment, DLP) deflection angle of each micro-reflective mirror in, thus control is from each reflective mirror point to the glistening intensity in projection lens 4 direction.
The micro-aobvious controller micro-aobvious chip 5 of control in switchboard 2 (adopts digital light process chip in the present embodiment, DLP) the either rank bright dipping in, reflective mirror not bright dipping on other aspects, it is possible to realize a linear ray cast on a position of cornea eye front surface. Due to eye cornea tissue also incomplete printing opacity, scattering can be there is on cornea depth direction after this linear ray cast to cornea, the light scattered out is collected by image sensor 9 by shooting camera lens 8 such that it is able to obtain the cornea section image on this position.
Each row light in micro-aobvious chip 5 (adopting digital light process chip in the present embodiment, DLP) horizontal direction can both project on the position corresponding to cornea eye. Control micro-aobvious chip 5 by switchboard 2 and (the present embodiment adopts digital light process chip, DLP), each row light is projected one by one by horizontal direction, switchboard 2 often controls to switch once micro-aobvious chip 5 and (adopts digital light process chip in the present embodiment, what DLP) arrange goes out optical position, then synchronously can gather as sensor 9 by triggering graph, get the eyes prosthomere fault image on correspondence position.
Switchboard 2 extracts the cornea front and rear surfaces marginal date of each tension fault photo, and it is stacked up by shooting order position, can synthesize the face type data obtaining cornea eye front and rear surfaces in whole three-dimensional space.
On display screen 3, directly time cornea front and rear surfaces face type data results of scanning is worked as in display.
Above specific embodiments of the invention are described. It is understood that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make a variety of changes within the scope of the claims or revise, and this does not affect the flesh and blood of the present invention. When not conflicting, the feature in the embodiment of the application and embodiment can combine arbitrarily mutually.
Claims (9)
1. a cornea face type obtains system, it is characterised in that, comprising:
Housing;
Optical projection unit, described optical projection unit is arranged in described housing, and described optical projection unit is used for projecting the light in longitudinal rows to people's eye;
Optical pickup unit, described optical pickup unit is arranged in described housing, the light that described optical pickup unit reflects from people's eye for gathering;
Switchboard, described switchboard is arranged in described housing, and described switchboard is connected with described optical projection unit and described optical pickup unit;
Display screen, described display screen is arranged in described housing, and described display screen is connected with described switchboard and described optical pickup unit.
2. cornea face according to claim 1 type obtains system, it is characterised in that, described optical projection unit comprises:
Light source;
Dichroscope, described dichroscope is arranged in the light path of described light source;
Micro-aobvious chip, described micro-aobvious chip is arranged in the light path of described dichroscope, and described micro-aobvious chip is connected with described switchboard;
Projection lens, described projection lens is arranged in the light path of described micro-aobvious chip.
3. cornea face according to claim 2 type obtains system, it is characterised in that, described micro-aobvious chip is provided with micromirror array.
4. cornea face type according to Claims 2 or 3 obtains system, it is characterised in that, described micro-aobvious chip is digital light process chip.
5. cornea face according to claim 1 type obtains system, it is characterised in that, the image sensor that described optical pickup unit comprises shooting camera lens and mates mutually with described shooting camera lens; Wherein said image sensor is connected with described switchboard and described display screen.
6. cornea face according to claim 1 type obtains system, it is characterised in that, in described housing, it is provided with battery, described battery is connected with described optical projection unit, described optical pickup unit and described switchboard.
7. the using method of a cornea face type acquisition system, it is characterised in that, comprise the steps:
Step 1, light source works, the light that light source is sent by dichroscope carries out closing light, and the light after closing light is invested micro-aobvious chip;
Step 2, micro-aobvious chip by the micromirror array on micro-aobvious chip by ray cast on the position of cornea eye;
Step 3, the light reflected from people's eye is gathered by image sensor, obtains the eyes prosthomere faultage image on correspondence position;
Step 4, the image collected is processed by switchboard.
8. cornea face according to claim 7 type obtains the using method of system, it is characterised in that, in step 2, light is projected by column on the position of cornea eye by micro-aobvious chip by the micromirror array on micro-aobvious chip.
9. cornea face according to claim 7 type obtains the using method of system, it is characterized in that, in step 3, it is treated to the marginal date that switchboard extracts each image front and rear surfaces, and by each image by the position superposition of shooting order, synthesis obtains the face type data of cornea eye front and rear surfaces in whole three-dimensional space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002661.9A CN105615825A (en) | 2015-12-28 | 2015-12-28 | Cornea surface contour obtaining system and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002661.9A CN105615825A (en) | 2015-12-28 | 2015-12-28 | Cornea surface contour obtaining system and use method thereof |
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| CN105615825A true CN105615825A (en) | 2016-06-01 |
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| CN201511002661.9A Pending CN105615825A (en) | 2015-12-28 | 2015-12-28 | Cornea surface contour obtaining system and use method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5835190A (en) * | 1996-04-12 | 1998-11-10 | Nikon Corporation | Ophthalmologic curvature measuring device and method to conjointly measure a central and peripheral portion of a curved surface |
| WO2003057023A1 (en) * | 2002-01-10 | 2003-07-17 | Carl Zeiss Meditec Ag | Arrangement and method for illuminating the lens of the human eye |
| CN1678235A (en) * | 2002-08-26 | 2005-10-05 | 株式会社拓普康 | Portable ophthalmic apparatus and ophthalmic system |
| CN1720857A (en) * | 2004-07-15 | 2006-01-18 | 中国科学院光电技术研究所 | Human eye aberration and cornea surface shape measurement system based on microprism array Shack-Hartmann wave front sensor |
| CN102499632A (en) * | 2012-01-05 | 2012-06-20 | 沈激 | Ocular anterior segment detection and illumination system |
| CN104066370A (en) * | 2011-12-30 | 2014-09-24 | 威孚莱有限公司 | An integrated device for ophthalmology |
| US20150265762A1 (en) * | 2011-06-02 | 2015-09-24 | Avedro, Inc. | Systems and methods for monitoring time based photo active agent delivery or photo active marker presence |
| CN105147239A (en) * | 2009-03-04 | 2015-12-16 | 完美Ip有限公司 | System for characterizing a cornea and obtaining an ophthalmic lens |
-
2015
- 2015-12-28 CN CN201511002661.9A patent/CN105615825A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5835190A (en) * | 1996-04-12 | 1998-11-10 | Nikon Corporation | Ophthalmologic curvature measuring device and method to conjointly measure a central and peripheral portion of a curved surface |
| WO2003057023A1 (en) * | 2002-01-10 | 2003-07-17 | Carl Zeiss Meditec Ag | Arrangement and method for illuminating the lens of the human eye |
| CN1678235A (en) * | 2002-08-26 | 2005-10-05 | 株式会社拓普康 | Portable ophthalmic apparatus and ophthalmic system |
| CN1720857A (en) * | 2004-07-15 | 2006-01-18 | 中国科学院光电技术研究所 | Human eye aberration and cornea surface shape measurement system based on microprism array Shack-Hartmann wave front sensor |
| CN105147239A (en) * | 2009-03-04 | 2015-12-16 | 完美Ip有限公司 | System for characterizing a cornea and obtaining an ophthalmic lens |
| US20150265762A1 (en) * | 2011-06-02 | 2015-09-24 | Avedro, Inc. | Systems and methods for monitoring time based photo active agent delivery or photo active marker presence |
| CN104066370A (en) * | 2011-12-30 | 2014-09-24 | 威孚莱有限公司 | An integrated device for ophthalmology |
| CN102499632A (en) * | 2012-01-05 | 2012-06-20 | 沈激 | Ocular anterior segment detection and illumination system |
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Application publication date: 20160601 |