CN105411522A - Corneal leucoma image detection device - Google Patents
Corneal leucoma image detection device Download PDFInfo
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- CN105411522A CN105411522A CN201510890768.5A CN201510890768A CN105411522A CN 105411522 A CN105411522 A CN 105411522A CN 201510890768 A CN201510890768 A CN 201510890768A CN 105411522 A CN105411522 A CN 105411522A
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- image
- cornea
- lens
- light
- detection device
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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
-
- 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
Abstract
The invention belongs to the field of a medical instrument, and discloses a corneal leucoma image detection device, which comprises a light source component, a light splitter, an image sensor and an imaging objective, wherein the light source component is provided with a light source and a lens; the light source is used for generating light which radiates on a cornea and the lens is used for transmitting the light from the light source into parallel and uniform rays; the light splitter is arranged in the transmission direction of the lens, and the light splitter is used for refracting the transmitted light on the cornea and for transmitting the reflected light of the cornea; the image sensor is arranged in the transmission direction of the reflected light of the cornea and is used for sensing the reflected light of the cornea so as to form an image; and the imaging objective is arranged between the light splitter and the cornea. By virtue of the device, leucoma condition on the eye cornea can be clearly detected.
Description
Technical field
The present invention relates to medical instruments field, in particular, relate to a kind of corneal leukoma image detection device.
Background technology
Cornea is positioned at eye refraction system foremost, often exposes in atmosphere, pathogenic microorganism such as contact antibacterial, virus etc., occurs to infect and wound than being easier to.Corneal leukoma is the circumscribed white casse that various keratopathy remains.White macula occurs in lesser ring of Merkel, then harm one's eyes.Corneal leukoma occurs in infantile period, easily forms After Monocular Deprivation.Corneal leukoma is modal disease in ophthalmology, infect, wound all can cause, not only affecting attractive in appearancely also affects visual performance, and especially youngster has very large injury to physical and mental health, can get more and more as treated new vessels on white macula not in time, affecting the curative effect of anaphase.
But current, unspecial in leucomatous detection technique, be all adopt manually to carry out direct-detection by vision usually, but this means can miss the discovery to some tiny white maculas.At present, for the detection technique of eyes normally for the detection of pupil, generally need to provide basic light source, the structure such as imaging device and focus lens.This kind of detection technique is not suitable for the detection of cornea, and first, the point source of direct projection on the path that light source is typically employed in imaging light, easily forms the reflection of comparatively concentrating, thus be unfavorable for leucomatous discovery on cornea.
Therefore, urgently to be resolved hurrily for leucomatous detection.
Summary of the invention
Technical problem to be solved by this invention is to provide one clearly can detect leucomatous corneal leukoma image detection device.
The object of the invention is to be achieved through the following technical solutions: a kind of corneal leukoma image detection device, comprising:
Light source assembly, described light source assembly is provided with light source and lens, and described light source is in order to produce light to be irradiated on cornea, and described lens are in order to become parallel uniform light by the ght transmission of described light source;
Spectroscope, it is arranged in the transmission direction of described lens, described spectroscope in order to by the light refraction of transmission on cornea, and by the reflection ray transmission of cornea;
Imageing sensor, it is arranged in the transmission direction of the reflection ray of described cornea, in order to the reflected light line formed image of cornea described in perception;
Image-forming objective lens, it is arranged between described spectroscope and described cornea.
Preferably, described spectroscopical transmission direction is provided with absorption means, described absorption means is in order to absorb described spectroscopical transmitted ray.
Preferably, in the front end of described image-forming objective lens, be also provided with a shade, described shade is provided with light entrance, and the shape of described shade and the shape of ocular adapt to mate eyes to described light entrance with covering outer light.
Preferably, a display device be electrically connected with described imageing sensor is also comprised, the image that described display device is formed in order to show described imageing sensor.
Preferably, described display device is liquid crystal indicator.
Preferably, described image-forming objective lens is connected with a control unit, and described control unit is in order to control the surface of described image-forming objective lens focusing to described cornea.
Preferably, described image-forming objective lens the second lens of comprising the first lens and arranging in identical light path with these first lens.
Preferably, also comprise one for controlling the first lens, the second lens carry out the controlling organization that focuses on, described controlling organization and described control unit are electrically connected the control signal in order to receive described control unit.
Preferably, also comprise an image storage unit, described image storage unit is in order to store the image that described imageing sensor is formed.
Preferably, also comprise an Image Acquisition Tip element, described Image Acquisition Tip element is in order to point out person to be measured to keep eyes to be in current state to obtain the image of this current state.
The present invention passes through light source assembly, spectroscope and imageing sensor, image-forming objective lens constitutes for leucomatous detection, light source assembly comprises light source and lens, utilize lens lit transmissive can be become parallel uniform light, recycling spectroscope is refracted on image-forming objective lens, transfer on the cornea of eyes by image-forming objective lens, the cornea of eyes produces the picture rich in detail that reflection ray transmission returns to define to imageing sensor on cornea, because the light source of illumination is not direct projection from the path of reflection ray, and the parallel light source that utilized lens to be dispersed into, thus relatively uniform reflection ray can be produced on cornea, avoid and form larger speck to affect the detection of Oculentum xiao-meng on cornea.
Be described further below with reference to the technique effect of accompanying drawing to design of the present invention, concrete structure and generation, to understand object of the present invention, characteristic sum effect fully.
Accompanying drawing explanation
Fig. 1 is the principle schematic of the corneal leukoma image detection device of the embodiment of the present invention,
Fig. 2 is the structure composition schematic diagram of the corneal leukoma image detection device of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing and preferred embodiment, the invention will be further described.
Be a kind of specific embodiment of corneal leukoma image detection device provided by the invention as shown in Figure 1-2, certainly, based on technical scheme of the present invention, other embodiment can also be developed, be not limited to this kind of enforcement that the present embodiment provides.This corneal leukoma image detection device 10 comprises: light source assembly, spectroscope 13, imageing sensor 17 and image-forming objective lens 15; These components are all packaged within the casing of a casing or multiple combination, form the paths approach closed, the impact simultaneously also avoiding extraneous light to detect image.Wherein, described light source assembly is provided with light source 11 and lens 12, lens 12 adopt convex lens, in order to the light of light source 11 to be converted to the light of parallel injection, enter eyes 1 be irradiated on cornea through described spectroscope 13, image-forming objective lens 15 again, the process of scioptics 12 reflects through spectroscope 13 again, thus light can be projected on the cornea of eyes 1 uniformly, produces relatively uniform reflection ray.The spectroscope of 45° angle selected by spectroscope 13 described in the present embodiment, and it is arranged in the transmission direction of described lens 12, this spectroscope 13 in order to by the light refraction of lens 12 transmissions on cornea, and the reflection ray of cornea is transmitted through imageing sensor 17.Imageing sensor 17 described in the present embodiment, it is arranged in the transmission direction of the reflection ray of described cornea, in order to the reflected light line formed image of cornea described in perception; Image-forming objective lens 15 described in the present embodiment, it is arranged between described spectroscope 13 and the cornea of described eyes 1, this image-forming objective lens 15 in order to reflection ray is back to imageing sensor 17, simultaneously, also be the adjustment for carrying out focal length, to obtain the picture rich in detail of cornea.The present invention passes through light source assembly, spectroscope and imageing sensor, image-forming objective lens constitutes for leucomatous detection, light source assembly comprises light source and lens, utilize lens lit transmissive can be become parallel uniform light, recycling spectroscope is refracted on image-forming objective lens, transfer on the cornea of eyes by image-forming objective lens, the cornea of eyes produces the picture rich in detail that reflection ray transmission returns to define to imageing sensor on cornea, because the light source of illumination is not direct projection from the path of reflection ray, and the parallel light source that utilized lens to be dispersed into, thus relatively uniform reflection ray can be produced on cornea, avoid and form larger speck to affect the detection of Oculentum xiao-meng on cornea.
As further improvement of this embodiment, the transmission direction of described spectroscope 13 is provided with absorption means 14, described absorption means 14 in order to absorb the transmitted ray of described spectroscope 13, thus can guarantee that checkout gear inside does not have the image quality of the light effect diagram image-position sensor 17 of other scattering.This absorption means 14 adopts ligh trap usually, and its inside is coated with light absorbent, and is provided with multiple catoptric arrangement, to guarantee the light injected to absorb comparatively completely.
As further improvement of this embodiment, when reality uses, need to carry out corresponding shading treatment to reach better imaging effect.Therefore, in the front end of described image-forming objective lens 15, also be provided with a shade, described shade is provided with light entrance 16, and the shape of described shade and the shape of ocular adapt to mate eyes to described light entrance with covering outer light, usually, shade adopts soft rubber material to make, during detection, ocular can on the described shade of adaptive compacting, by the light entrance 16 described in eye alignment.
In the present embodiment, also comprise a display device be electrically connected with described imageing sensor, this display device can the image that formed of real-time image sensor, the image that described display device is formed in order to show described imageing sensor, so that operator conveniently observes eye conditions, also can understand the readability of image in time and suitable adjustment be carried out to image-forming objective lens 15 simultaneously.As shown in Figure 2, usually, described display device is liquid crystal indicator 18, liquid crystal indicator is liquid crystal indicator comparatively general at present, certainly, as the liquid crystal indicator of medical observation, its requirement will reach higher level of resolution and color requirements usually, as other selection, the display of CRT monitor or other type also can be adopted.
In the present embodiment, the second lens (not shown) that described image-forming objective lens comprises the first lens and arranges in identical light path with these first lens, simultaneously, as shown in Figure 2, checkout gear 10 is also provided with a control unit 20, this control unit is connected to shown image-forming objective lens 15, according to the image definition shown by liquid crystal indicator 18, control adjustment is carried out to image-forming objective lens 15, focus to the surface of described cornea to make image-forming objective lens, thus obtain image comparatively clearly, so that corneal leukoma that can be shown on resolution image accurately.Certainly, in the present embodiment, first lens, the second lens are carried out focusing on and are realized by a controlling organization (not shown), its focusing is automatic, can reach like this and regulate more accurately, this controlling organization and described control unit 20 are electrically connected the control signal receiving described control unit, regulate accordingly image-forming objective lens according to control signal.
For the present embodiment, image detection device is the instrument of the image obtaining cornea eye, concrete identification and resolution, or need manually to carry out according to image, therefore, in order to better carry out static state to image or analyze dynamically, the present embodiment is also provided with an image storage unit 19, described image storage unit is in order to store the image that described imageing sensor is formed, image storage unit 19 is also electrically connected with control unit 20, and control unit 20 controls the storage behavior of described image storage unit 19.
As further improvement of this embodiment, image detection device 10 also comprises an Image Acquisition Tip element 21, and described Image Acquisition Tip element 21 is in order to point out person to be measured to keep eyes to be in current state to obtain the image of this current state.Such as, Image Acquisition Tip element 21 can be auditory tone cues, when operator object lens 15 are adjusted to preferably focal length time, all get ready when all detect essential condition, then can send prompt tone to person to be detected, point out person to be detected to be ready to detect beginning, keep the state to be checked of eyes, to obtain the cornea detected image of accurately cleaning.
Certainly, for the present embodiment, not needing all components that this corneal leukoma image detection device 10 of detailed description should possess, these components do not described, should be that those skilled in the art can implement according on the basis of technical scheme proposed by the invention.Such as, this corneal leukoma image detection device 10 should be provided with pedestal, handrail, power supply and other component etc.
The using method of the corneal leukoma image detection device in the present embodiment is as follows: first, start this device, keep power supply energising, ocular arrives on shade by person to be detected, makes eye alignment light entrance 16, operator is according to present case, observing the image of liquid crystal display 18, whether clear, if clear not, regulate accordingly image-forming objective lens 15 if seeing, when adjustment reaches requirement degree, then can carry out acquisition and the storing step of still image targetedly.Afterwards the image obtained is sent or prints, carry out identification and the judgement of Oculentum xiao-meng to the doctor of specialty.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technical staff in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (10)
1. a corneal leukoma image detection device, is characterized in that, comprising:
Light source assembly, described light source assembly is provided with light source and lens, and described light source is in order to produce light to be irradiated on cornea, and described lens are in order to become parallel uniform light by the ght transmission of described light source;
Spectroscope, it is arranged in the transmission direction of described lens, described spectroscope in order to by the light refraction of transmission on cornea, and by the reflection ray transmission of cornea;
Imageing sensor, it is arranged in the transmission direction of the reflection ray of described cornea, in order to the reflected light line formed image of cornea described in perception;
Image-forming objective lens, it is arranged between described spectroscope and described cornea.
2. corneal leukoma image detection device as claimed in claim 1, it is characterized in that, described spectroscopical transmission direction is provided with absorption means, described absorption means is in order to absorb described spectroscopical transmitted ray.
3. corneal leukoma image detection device as claimed in claim 1, it is characterized in that, in the front end of described image-forming objective lens, also be provided with a shade, described shade is provided with light entrance, and the shape of described shade and the shape of ocular adapt to mate eyes to described light entrance with covering outer light.
4. corneal leukoma image detection device as claimed in claim 1, is characterized in that, also comprises a display device be electrically connected with described imageing sensor, the image that described display device is formed in order to show described imageing sensor.
5. corneal leukoma image detection device as claimed in claim 4, it is characterized in that, described display device is liquid crystal indicator.
6. corneal leukoma image detection device as claimed in claim 1, it is characterized in that, described image-forming objective lens is connected with a control unit, and described control unit is in order to control the surface of described image-forming objective lens focusing to described cornea.
7. corneal leukoma image detection device as claimed in claim 6, is characterized in that, the second lens that described image-forming objective lens comprises the first lens and arranges in identical light path with these first lens.
8. corneal leukoma image detection device as claimed in claim 7, it is characterized in that, also comprise one for controlling the first lens, the second lens carry out the controlling organization that focuses on, described controlling organization and described control unit are electrically connected the control signal in order to receive described control unit.
9. corneal leukoma image detection device as claimed in claim 1, it is characterized in that, also comprise an image storage unit, described image storage unit is in order to store the image that described imageing sensor is formed.
10. corneal leukoma image detection device as claimed in claim 1, it is characterized in that, also comprise an Image Acquisition Tip element, described Image Acquisition Tip element is in order to point out person to be measured to keep eyes to be in current state to obtain the image of this current state.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510890768.5A CN105411522A (en) | 2015-12-07 | 2015-12-07 | Corneal leucoma image detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510890768.5A CN105411522A (en) | 2015-12-07 | 2015-12-07 | Corneal leucoma image detection device |
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| CN201510890768.5A Pending CN105411522A (en) | 2015-12-07 | 2015-12-07 | Corneal leucoma image detection device |
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Cited By (2)
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|---|---|---|---|---|
| CN107737410A (en) * | 2017-10-12 | 2018-02-27 | 佛山科学技术学院 | A kind of therapy of vitiligo system and its implementation |
| CN113520302A (en) * | 2019-01-30 | 2021-10-22 | 北京大学第三医院（北京大学第三临床医学院） | Ophthalmologic photographing method |
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| US5225862A (en) * | 1989-02-08 | 1993-07-06 | Canon Kabushiki Kaisha | Visual axis detector using plural reflected image of a light source |
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| CN113520302A (en) * | 2019-01-30 | 2021-10-22 | 北京大学第三医院（北京大学第三临床医学院） | Ophthalmologic photographing method |
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Application publication date: 20160323 |