CN108937845B - Miniature eye examination instrument - Google Patents
Miniature eye examination instrument Download PDFInfo
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- CN108937845B CN108937845B CN201810673052.3A CN201810673052A CN108937845B CN 108937845 B CN108937845 B CN 108937845B CN 201810673052 A CN201810673052 A CN 201810673052A CN 108937845 B CN108937845 B CN 108937845B
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Classifications
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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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- 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)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Eye Examination Apparatus (AREA)
Abstract
The invention relates to the field of a diagnosis instrument, and discloses a miniature diagnosis instrument, which comprises: the camera module comprises a server, a wireless transmission module, a camera module, a light homogenizing optical device, a lighting device, a convex lens and a shell, wherein the shell is fixedly connected with the camera module, the lighting device, the light homogenizing optical device and the convex lens are arranged in the shell, the convex lens and the camera module are concentrically arranged, and the light homogenizing optical device is used for enabling light rays to uniformly irradiate. The invention can carry out wide-field disposable imaging on the white eyes by utilizing the light-equalizing optical device, the convex lens and the camera module, has no obvious light spot on the white eyes, only needs one-time imaging, does not need image stitching, has short time consumption in the process of forming the white eyes image and better imaging quality, and can analyze the health condition of eye lesions and human physiological and pathological changes by utilizing the acquired white eyes image according to the server and the wireless transmission module matched with the white eyes image. The miniature clinic instrument has the advantages of small volume, light weight, low price and convenient carrying and popularization.
Description
Technical Field
The invention relates to the field of a visual inspection instrument, in particular to a miniature visual inspection instrument.
Background
Eyes are one of important organs for human to acquire external information, and the health condition of eyes is also being more and more concerned. Conventional detection of the eye includes anterior ocular segment detection and fundus detection; wherein anterior ocular segment detection includes detection of iris, pupil, white eye, etc. The detection of the anterior segment of the eye not only can know the pathological condition of the eye, but also can predict the physiological and pathological change health condition of the person to be detected.
In the prior art, a slit lamp is generally adopted to observe the anterior ocular segment of an eye to be tested, when the white eye of the eye to be tested is imaged, a tester needs to vertically project slit rays of the slit lamp onto the eye to be tested of the tester to form a narrow strip-shaped optical section, and a section white eye image in the optical section is acquired; then, a plurality of section white eye images are obtained by moving slit rays to make the slit rays sweep the surface of the eye to be measured; and finally, obtaining a complete white-eye image of the eye to be detected from the plurality of section white-eye images by an image reconstruction method, so that a tester can obtain pathological changes of the eye of the tester and physiological and pathological health conditions of the body by observing the white-eye images. The method for imaging the eye to be detected by using the slit lamp needs to acquire a plurality of section eye images, then acquires the eye image to be detected through image stitching reconstruction, and the image stitching reconstruction process is long in time consumption, and is difficult to ensure seamless stitching of the plurality of section eye images, so that the real condition of the eye surface is difficult to restore; if the slit lamp is used for imaging the eye to be tested at one time, the slit light of the slit lamp needs to completely cover the eye to be tested, so that a reflection image of a light source is formed on the surface of the eye to be tested, and the imaging quality is affected.
In the prior art, the problem of influence of light source reflection images of wide-field imaging of eyes is not solved in Chinese patent 'eye imaging teaching demonstration device' (application number 200620096156.5) 'device for imaging eyes' (application number: 201380057539.4). Among these devices and methods, the most complex and representative structure of the device for imaging eyes (application number: 201380057539.4) is that a complex motor control device guides a camera to perform tracking imaging of x-y-z axis three-dimensional motion on the surface or pupil of an eye, and determines whether a reflected image exists at a specific point desired to be monitored or whether the image is set to be repeated or rejected, once the reflected image exists at the specific point (or region) desired to be monitored in the eye, a motor device is required to adjust the positions of a sight guiding system and the camera, the specific point (or region) desired to be monitored in the eye is far away from the reflected image, and then imaging is performed again, so as to avoid other artifacts related to reflection or imaging of a light source, and ensure the imaging quality of the specific point (or region) desired to be monitored in the eye. It is obvious that the method of adjusting the positions of the established sight line guiding system and the camera by the motor control device to keep the specific point (or area) to be monitored in the eye away from the reflected image is not only troublesome in operation process, complicated in structure of the control system device and long in time consumption, but also does not fundamentally solve the problem of influence of the reflected image of the light source. In addition, the structure of the wide-field imaging device can not realize wide-field imaging of the white eye without reflected image by only one camera in front of the eyes, and a plurality of cameras are started to meet the imaging quality requirement of no light source reflection or no other image related artifacts influence of different specific points (or areas) in the eyes.
In summary, the inspection steps of the diagnostic device in the prior art are more, the process is long, the seamless splicing of the images of the eyes with the sections is difficult to ensure, the real condition of the surfaces of the eyes is difficult to restore, or the reflected image of the light source can be formed, the imaging quality is affected, and the diagnostic device in the prior art is large in size, has the weight of more than 20 kg, is high in manufacturing cost and is not easy to carry.
Disclosure of Invention
First, the technical problem to be solved
The invention aims to provide a miniature clinic instrument, which solves the problems of long time consumption, complex operation, poor imaging quality, high price and difficult popularization in the detecting process of the clinic instrument in the prior art.
(II) technical scheme
In order to solve the above technical problems, the present invention provides a miniature diagnosis apparatus, comprising: the camera comprises a server, a wireless transmission module, a camera module, a light homogenizing optical device, a lighting device, a convex lens and a shell, wherein the shell is fixedly connected with the camera module, the shell is semi-open, the lighting device, the light homogenizing optical device and the convex lens are all arranged in the shell, the convex lens and the camera module are concentrically arranged, the light homogenizing optical device is used for reflecting and refracting light emitted by the lighting device, so that light rays are uniformly irradiated, and the camera is in communication connection with the server through the wireless transmission module.
Wherein the shell consists of an inclined plane and an arc surface or an inclined plane and a straight surface.
Wherein the included angle between the inclined plane and the arc surface is 30-60 degrees.
The contact part of the shell and eyes is an arc surface or a straight surface.
Wherein, lighting device includes the LED lamp.
The lighting device further comprises a switch for controlling the opening and closing of the lighting device.
The lighting device further comprises a battery and a USB charging port, wherein the USB charging port and the battery are both arranged on the shell and used for providing power for the lighting device.
The light homogenizing optical device comprises a light homogenizing cover, wherein the light homogenizing cover and the shell form a sealing space, and the lighting device is arranged in the sealing space.
Wherein, the light equalizing cover and the plane of the convex lens are at an included angle of 42 degrees.
The light-equalizing optical device further comprises a light-equalizing cover, and the light-equalizing cover is buckled on the lighting device.
(III) beneficial effects
The miniature eye diagnosis instrument provided by the invention can perform wide-field disposable imaging on the white eyes by utilizing the light-equalizing optical device, the convex lens and the camera module, has no obvious light spots on the white eyes, only needs one-time imaging, does not need image stitching, has short time consumption in the process of forming white eye images and better imaging quality, and can analyze the eye lesions and the health condition of human physiological and pathological changes by utilizing the acquired white eye images according to the server and the wireless transmission module matched with the white eye images. The miniature clinic instrument has the advantages of small volume, light weight, low price and convenient carrying and popularization.
Drawings
FIG. 1 is a front view of embodiment 1 of the present invention;
FIG. 2 is a B-B sectional view of embodiment 1 of the present invention;
FIG. 3 is a top view of embodiment 1 of the present invention;
FIG. 4 is a layout of a light equalizing cover, convex lens and lighting device of the present invention;
fig. 5 is a front view of embodiment 2 of the present invention;
FIG. 6 is a top view of embodiment 2 of the present invention;
FIG. 7 is a front view of the housing of the present invention;
FIG. 8 is a C-C cross-sectional view of the housing of the present invention;
FIG. 9 is a top view of the housing of the present invention;
Fig. 10 is a front view of embodiment 3 of the present invention;
FIG. 11 is a cross-sectional view A-A of example 3 of the present invention;
Fig. 12 is a top view of embodiment 3 of the present invention.
In the figure, 1, a mobile phone; 2. a convex lens; 3. a housing; 4. a lighting device; 5. a light equalizing cover; 6. a light equalizing cover; 7. a switch; 8. a USB charging port; 9. a battery; 10. and a power indicator lamp.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 12, the present invention discloses a miniature clinic instrument, which comprises: the camera comprises a server, a wireless transmission module, a camera module, a light homogenizing optical device, a lighting device 4, a convex lens 2 and a shell 3, wherein the shell 3 is fixedly connected with the camera module, the shell 3 is semi-open, the lighting device 4, the light homogenizing optical device and the convex lens 2 are all arranged in the shell 3, the convex lens 2 and the camera module are concentrically arranged, the light homogenizing optical device is used for reflecting and refracting light emitted by the lighting device 4, so that the light is uniformly irradiated, and the camera is in communication connection with the server through the wireless transmission module.
Specifically, the casing 3 is fixedly connected with the camera module, and is used for packaging the light homogenizing optical device, the lighting device 4 and the convex lens 2, keeping the stable position relationship between the device and the camera module, and ensuring stable light irradiation and stable image formation. The casing 3 is semi-open, and human eyes can be aligned with the open part of the casing to perform white eye imaging detection. The lighting device 4 is used for providing a light source, uniformly irradiates light in the shell 3 through reflection and refraction of the light equalizing optical device, can perform wide-field disposable imaging through the convex lens 2, the camera module shoots the image formed by the convex lens 2 and transmits the image to the server through the wireless transmission module, and the server compares and analyzes the received wide-field imaging of the white eyes with the white eyes morphological characteristics in the database to generate diagnosis results comprising eye lesions to be detected and human physiological and pathological changes of the person to be detected. Preferably, the wireless transmission module and the camera module may be integrated together, for example, mobile devices such as the mobile phone 1 or a tablet computer may be used, so that the functions of the two modules can be played.
The materials selected for the structural design of the device can be metal materials or nonmetallic materials or high polymer materials. The metallic material may be ferrous (e.g., cast iron, steel, powder metallurgy, and other metallic materials) or nonferrous (e.g., copper and copper alloys, aluminum and aluminum alloys, titanium and titanium alloys, magnesium and magnesium alloys, and other nonferrous metallic materials). The nonmetallic materials can be selected from plastics, glass, paper products, wood, rubber, ceramics, various composite materials and the like. The polymer material can be Polyethylene (PE), polypropylene (PP), polystyrene (PS), polymethyl methacrylate (PMMA, commonly known as organic glass), polyvinyl chloride (PVC), nylon (Nylon), polycarbonate (PC), polyurethane (PU), polytetrafluoroethylene (Teflon, PTFE), polyethylene terephthalate (PET, PETE) and the like.
The miniature eye diagnosis instrument provided by the invention can perform wide-field disposable imaging on the white eyes by utilizing the light-equalizing optical device, the convex lens and the camera module, has no obvious light spots on the white eyes, only needs one-time imaging, does not need image stitching, has short time consumption in the process of forming white eye images and better imaging quality, and can analyze the eye lesions and the health condition of human physiological and pathological changes by utilizing the acquired white eye images according to the server and the wireless transmission module matched with the white eye images. The miniature clinic instrument has the advantages of small volume, light weight, low price and convenient carrying and popularization.
As shown in fig. 7-12, the housing 3 is composed of an inclined surface and an arc surface or an inclined surface and a straight surface. It should be noted that, the inner surface of the housing 3 in this embodiment refers to the inner surface opposite to the eyes, the inner surface may be an arc surface or a straight surface, and the outer surface may be an inclined surface. The housing 3 constitutes a space for accommodating the light equalizing optical device, the lighting device 4, and the convex lens 2, which is fixed by a set screw, and is capable of reflecting light to a certain extent. As in embodiment 2 shown in fig. 5-6, the outer surface side of the housing 3 may be trapezoidal.
Preferably, the included angle between the inclined plane and the circular arc surface is 30-60 degrees. Specifically, after the analysis of the debug contrast image, when the angle of the cone vertex angle is 42 degrees, the image definition effect is the best. After the embodiment is set to the casing 3 with the included angle, compared with other structures without the included angle, the image definition is obviously improved.
Wherein, the contact part of the shell 3 and eyes is an arc surface or a straight surface. Embodiment 1 of fig. 1-3 is in the form of a slit, and embodiment 3 of fig. 11-12 is in the form of a flat structure without a slit. The straight structure of embodiment 3 can cover the orbit, avoiding light leakage, resulting in inaccurate measurement. The surface in example 3 may be a paint of a color system similar to the white color of white eyes, such as sand blast, porcelain blast, white color, etc.
Wherein the lighting means 4 comprise LED lamps. Other lighting devices 4 may be used instead as desired. The illumination light emitted by the LED lamp can be complex-color light or monochromatic light.
Wherein, the lighting device also comprises a switch 7 for controlling the opening and closing of the lighting device 4. In particular, the switch 7 may be mounted on the outside of the housing 3 for control by the user.
The lighting device further comprises a battery 9 and a USB charging port 8, wherein the USB charging port 8 and the battery 9 are both arranged on the shell 3 and used for providing power for the lighting device 4. The battery 9 in this embodiment is a lithium battery 9 or other storage battery 9, provides power for the lighting device 4, and can charge the battery 9 through the USB charging port 8, so that portability of the device is improved, and the charging stand can also use the magnetic field generated between the coils to transmit electric energy, thereby realizing wireless charging.
The device also comprises a power indicator lamp 10, wherein the power indicator lamp 10 is arranged on the shell 3 and is used for indicating the charge and discharge states of the battery 9 and the working state of the device. For example, when the present apparatus is in a charged state, the power indicator lamp 10 is displayed in red, and after the charging is completed, the power indicator lamp 10 is displayed in green. The operating state of the device may also be indicated, for example, when in operation, the power indicator light 10 is shown as yellow.
As shown in fig. 1-3 and fig. 7-9, the light equalizing optical device includes a light equalizing cover 6, the light equalizing cover 6 and the housing 3 form a sealed space, the lighting device 4 is disposed in the sealed space, and the light equalizing cover 6 can not only uniformly irradiate light, but also be used for determining the placement position of the eye to be measured. Specifically, the light equalizing cover 6 and the housing 3 may be integrated or separated. The color of the inner surface of the housing 3 corresponds to the color of the reticle 6. Preferably, the angle between the light equalizing cover 6 and the plane where the convex lens 2 is located is 42 degrees.
As shown in fig. 4, the light-equalizing optical device includes a light-equalizing cover 5, the light-equalizing cover 5 is fastened on the lighting device 4, and the light-equalizing cover 4 is used for adjusting optical parameters such as color temperature, color rendering, illuminance, etc. Specifically, the light emitted by the LED lamp passes through the light equalizing cover 5, and the light equalizing cover 6 uniformly illuminates the inner wall of the housing 3. Based on the above embodiment, the shape of the housing 3 is a cone with a cone apex angle of 30 ° -60 °. Preferably, the angle between the light equalizing cover 6 and the plane where the convex lens 2 is located is 42 degrees. The light equalizing cover 5 can also be arranged into a cone shape, the vertex angle of the light equalizing cover is 30-60 degrees, and the imaging is optimal when the angle is 42 degrees through the analysis of the debug contrast image. The light homogenizing cover 6 in the shell 3 is also arranged at 30-60 degrees, and the effect is optimal when the light homogenizing cover is also arranged at 42 degrees, and the color rendering value is more than 95. Specifically, the color temperature of the light is controlled to 4000-4900K, the illuminance is controlled to 200-500LX, and the color rendering is controlled to 92-95 by utilizing the light equalizing cover 5. The light equalizing cover 5 and the light equalizing cover 6 form a contact surface with the eye socket when crossing above, and the contact surface is an elliptic curved surface so that the light rays irradiated to the eyes are uniform.
The device also comprises a macro lens, so that the close-range shooting of eyeballs is ensured, the imaging quality is improved, and the camera module and the macro lens are fixed on the concentric position through the shell 3.
The miniature eye diagnosis instrument provided by the invention can perform wide-field disposable imaging on the white eyes by utilizing the light-equalizing optical device, the convex lens and the camera module, has no obvious light spots on the white eyes, only needs one-time imaging, does not need image stitching, has short time consumption in the process of forming white eye images and better imaging quality, and can analyze the eye lesions and the health condition of human physiological and pathological changes by utilizing the acquired white eye images according to the server and the wireless transmission module matched with the white eye images. The miniature clinic instrument has the advantages of small volume, light weight, low price and convenient carrying and popularization.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (6)
1. A miniature clinic instrument for white eye imaging detection, comprising: the camera comprises a server, a wireless transmission module, a camera module, a light homogenizing optical device, a lighting device (4), a convex lens (2) and a shell (3), wherein the shell (3) is fixedly connected with the camera module, the shell (3) is semi-open, the lighting device (4), the light homogenizing optical device and the convex lens (2) are all arranged in the shell (3), the convex lens (2) and the camera module are concentrically arranged, and the light homogenizing optical device is used for reflecting and refracting light emitted by the lighting device (4) to enable the light to be uniformly irradiated, and the camera module is in communication connection with the server through the wireless transmission module;
The shell (3) consists of an inclined plane and an arc surface;
the contact part of the shell (3) and eyes is an arc surface;
The light-equalizing optical device comprises a light-equalizing cover (6), wherein the light-equalizing cover (6) and the shell (3) form a sealed space, and the lighting device (4) is arranged in the sealed space;
the light-equalizing optical device further comprises a light-equalizing cover (5), and the light-equalizing cover (5) is buckled on the lighting device (4);
the light homogenizing cover (6) can uniformly irradiate light and is used for determining the placement position of eyes to be detected.
2. The miniature clinic instrument according to claim 1, wherein the inclined plane forms an angle of 30 ° to 60 ° with the circular arc surface.
3. The miniature clinic instrument according to claim 1, wherein the illumination device (4) comprises an LED lamp.
4. The miniature clinic instrument according to claim 1, further comprising a switch (7) for controlling the switching on and off of the illumination device (4).
5. The miniature clinic equipment according to claim 1, further comprising a battery (9) and a USB charging port (8), wherein the USB charging port (8) and the battery (9) are both disposed on the housing (3) for providing power to the lighting device (4).
6. The micro-vision apparatus as claimed in any one of claims 1-5, characterized in that the light-equalizing mask (6) forms an angle of 42 degrees with the plane of the convex lens (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810673052.3A CN108937845B (en) | 2018-06-26 | 2018-06-26 | Miniature eye examination instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810673052.3A CN108937845B (en) | 2018-06-26 | 2018-06-26 | Miniature eye examination instrument |
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| Publication Number | Publication Date |
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| CN108937845A CN108937845A (en) | 2018-12-07 |
| CN108937845B true CN108937845B (en) | 2024-05-28 |
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| CN201228868Y (en) * | 2008-01-21 | 2009-04-29 | 周志邦 | Random angle rotatable LED lighting lamp tube |
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