CN219558507U - Light feeding instrument - Google Patents
Light feeding instrument Download PDFInfo
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- CN219558507U CN219558507U CN202320793525.XU CN202320793525U CN219558507U CN 219558507 U CN219558507 U CN 219558507U CN 202320793525 U CN202320793525 U CN 202320793525U CN 219558507 U CN219558507 U CN 219558507U
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- image acquisition
- output port
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- myopia
- myopia training
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Abstract
The utility model relates to the field of a light feeding instrument, in particular to a light feeding instrument for relieving the technical problem that the existing light feeding instrument can only emit red light and can not acquire fundus images, wherein the light feeding instrument comprises a body, an image acquisition mechanism, a myopia training mechanism and a switching mechanism; the body is provided with an output port; the image acquisition mechanism and the myopia training mechanism are switched to work states through the switching mechanism; under the first working state, the switching mechanism drives one of the image acquisition mechanism or the myopia training mechanism to be opposite to the output port; in the second working state, the switching mechanism drives the other of the image acquisition mechanism or the myopia training mechanism to be opposite to the output port. The utility model integrates the near vision training mechanism and the image acquisition mechanism, can acquire fundus images before and after training by a user using the light feeding instrument each time, has low cost and large space utilization rate, is favorable for observing fundus structures and timely finding fundus structure changes.
Description
Technical Field
The utility model relates to the field of light feeding instruments, in particular to a light feeding instrument.
Background
The light-feeding instrument in the prior art is mainly used for preventing and controlling myopia and amblyopia, but the existing light-feeding instrument is relatively large in dispute, and many people consider that the light-feeding instrument has risks and is not dared to use. In order to better investigate the safety and effectiveness of a nursing instrument, it is necessary to acquire fundus images of a user before and after training using the nursing instrument.
Fundus is the only part where arteries, veins and capillaries can be directly and intensively observed with naked eyes, and the blood vessels can reflect the dynamic and health conditions of the whole body blood circulation of the human body. It is very important to acquire fundus images. Fundus images are not only important methods for examining vitreous, retinal, choroidal and optic nerve diseases, but are also a "window" for monitoring many systemic diseases. Ocular fundus lesions can occur in hypertension, hyperlipidemia, renal disease, diabetes, certain hematopathy, immunological diseases, central nervous system diseases, etc. Ophthalmologists can find many problems from subtle changes in fundus images, providing important data for diagnosis and treatment of systemic diseases.
Disclosure of Invention
The utility model aims to provide a light feeding instrument so as to solve the technical problem that the existing light feeding instrument can only emit red light and cannot acquire fundus images.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows:
a light feeding instrument comprises a body, an image acquisition mechanism, a myopia training mechanism and a switching mechanism;
the body is provided with an output port;
the image acquisition mechanism and the myopia training mechanism are switched to work states through the switching mechanism;
in a first working state, the switching mechanism drives one of the image acquisition mechanism or the myopia training mechanism to be opposite to the output port;
in a second working state, the switching mechanism drives the other of the image acquisition mechanism or the myopia training mechanism to be opposite to the output port.
Still further, the method further comprises the steps of,
the image acquisition mechanism and the myopia training mechanism are arranged in the upper and lower directions;
the switching mechanism comprises a lifting part, and the output port is arranged at the top of the lifting part;
the lifting part is used for driving the output port to be opposite to the image acquisition mechanism or the myopia training mechanism.
Still further, the method further comprises the steps of,
the image acquisition mechanism and the myopia training mechanism are arranged in left and right directions;
the switching mechanism comprises a transverse moving part, and the output port is arranged on the transverse moving part;
the traversing part is used for driving the output port to be opposite to the image acquisition mechanism or the myopia training mechanism.
Still further, the method further comprises the steps of,
the light-feeding instrument further comprises a gesture adjusting mechanism, wherein the gesture adjusting mechanism is used for rotationally adjusting the angle of the image acquisition mechanism and/or the myopia training mechanism.
Still further, the method further comprises the steps of,
the gesture adjusting mechanism comprises a rotating part, wherein the rotating part is provided with a rotating shaft, and the rotating shaft is perpendicular to the detection light path direction of the image acquisition mechanism or the myopia training mechanism in a horizontal plane.
Still further, the method further comprises the steps of,
the lifting part is of a flexible structure, and is bent after the gesture adjusting mechanism adjusts the angle of the image acquisition mechanism or the myopia training mechanism.
Still further, the method further comprises the steps of,
the output port is provided with an inductor, and the inductor is used for detecting whether a user approaches.
Still further, the method further comprises the steps of,
the body is provided with a pupil distance adjusting mechanism.
Still further, the method further comprises the steps of,
the body is provided with a display mechanism.
Still further, the method further comprises the steps of,
the body is also provided with a liftable head supporting mechanism, and the liftable head supporting mechanism is arranged below the output port and is used for supporting the mandible of a user.
In summary, the technical effects achieved by the utility model are as follows:
the utility model integrates the near vision training mechanism and the image acquisition mechanism, can acquire fundus images before and after training by a user using the light feeding instrument each time, has low cost and large space utilization rate, is favorable for observing fundus structures and timely finding fundus structure changes.
On one hand, a user can view the training result through fundus images, so that the trust degree of the user on the light-feeding instrument is effectively provided, the safety consciousness is improved, and the light-feeding instrument is convenient to popularize;
on the other hand, the eye fundus image can be used for observing the whole body diseases and timely knowing the health condition of the user.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a light meter in a first operating state according to an embodiment of the present utility model;
FIG. 2 is a schematic view of a light meter according to an embodiment of the present utility model in a second operating state;
FIG. 3 is a side view of a light meter according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram of the coordination of the posture adjustment mechanism and the lifting part of the light-feeding instrument according to the embodiment of the utility model;
FIG. 5 is a schematic diagram of an image acquisition mechanism;
fig. 6 is a schematic diagram of a myopia training mechanism.
Icon:
100-body; 110-an output port; 120-base; 130-lifting part; 140, an attitude adjusting mechanism; 141-a rotation shaft; 150-pupil distance adjusting mechanism; 160-a display mechanism;
200-an image acquisition mechanism; 210-an imaging assembly; 211-a omentum objective; 212-an imaging objective; 220-a light splitting assembly; 221-a first lens; 222-an optical modulation device; 223-a second lens; 224-an intermediate imaging device; 225-upper imaging device; 226-an optical filter; 227—a lower end imaging device;
300-myopia training mechanism; 310-a semiconductor laser; 320-a condenser lens; 330-grating sheet;
400-switching mechanism.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Some embodiments of the present utility model are described in detail below with reference to fig. 1-6. The following embodiments and features of the embodiments may be combined with each other without conflict.
The embodiment provides a light feeding instrument, which comprises a body 100, an image acquisition mechanism 200, a myopia training mechanism 300 and a switching mechanism 400; please refer to fig. 1-4 in detail.
The body 100 is provided with an output port 110, and the image acquisition mechanism 200 and the myopia training mechanism 300 switch working states through a switching mechanism 400;
in the first working state, the switching mechanism 400 drives one of the image acquisition mechanism 200 or the myopia training mechanism 300 to be opposite to the output port;
in the second working state, the switching mechanism 400 drives the other of the image acquisition mechanism 200 or the myopia training mechanism 300 to be opposite to the output port.
The utility model integrates the nursing instrument and the image acquisition mechanism for acquiring fundus images, can acquire fundus images before and after the user trains the nursing instrument each time, has low cost and large space utilization rate, is favorable for observing fundus structures and timely finding fundus structure changes.
On one hand, a user can view the training result through fundus images, so that the trust degree of the user on the light-feeding instrument is effectively provided, the safety consciousness is improved, and the light-feeding instrument is convenient to popularize;
on the other hand, the eye fundus image can be used for observing the whole body diseases and timely knowing the health condition of the user.
The switching mechanism 400 provided in this embodiment may be switched by actively adjusting the position of the output port 110 to adapt to the image capturing mechanism 200 and the myopia training mechanism 300, or may be switched by actively adjusting the positions of the image capturing mechanism 200 and the myopia training mechanism 300 to adapt to the output port 110, specifically:
mode one: actively adjusting the position of output port 110 to accommodate switching by way of image acquisition mechanism 200 and myopia training mechanism 300: the image acquisition means 200 and the myopia training means 300 are arranged in the vertical direction;
the switching mechanism 400 includes a lifting portion 130, and the output port 110 is disposed at the top of the lifting portion 130;
in the first working state, the lifting part 130 drives the output port 110 to be connected with one of the image acquisition mechanism 200 or the myopia training mechanism 300;
in the second working state, the lifting part 130 drives the output port 110 to be connected with the other of the image acquisition mechanism 200 or the myopia training mechanism 300.
The following describes a manner in which the image acquisition mechanism 200 is disposed above the myopia training mechanism 300:
when the image capturing mechanism 200 needs to work, the lifting part 130 drives the output port 110 to rise until the output port 110 matches with the image capturing mechanism 200, and the myopia training mechanism 300 stops working.
When the myopia training mechanism 300 needs to work, the lifting part 130 drives the output port 110 to descend until the output port 110 is matched with the myopia training mechanism 300, and the image acquisition mechanism 200 stops working.
Mode two: actively adjusting the position of output port 110 to accommodate switching by way of image acquisition mechanism 200 and myopia training mechanism 300: the image acquisition mechanism 200 and the myopia training mechanism 300 are arranged in left and right directions;
the switching mechanism includes a traversing portion (not shown) to which the output port is disposed, the traversing portion being configured to drive the output port to oppose the image acquisition mechanism or the myopia training mechanism.
When the image capturing mechanism 200 needs to work, the traversing portion drives the output port to be opposite to the image capturing mechanism 200.
When the myopia training mechanism 300 needs to work, the traversing part drives the output port to be opposite to the myopia training mechanism 300.
Of course, it should be noted that the above approach is more applicable to monocular photography and training. Alternatively, the output port is fixed and the traversing section is used to move the image acquisition mechanism 200 or the myopia training mechanism 300. When the image capturing mechanism 200 needs to work, the traversing part drives the image capturing mechanism 200 to traverse to match with the output port. When the myopia training mechanism 300 needs to work, the traversing part drives the myopia training mechanism 300 to traverse to match with the output port.
Mode three: switching is achieved by the image acquisition mechanism 200 and myopia training mechanism 300 actively adjusting their own positions to accommodate the way of the output port 110, specifically:
the image acquisition mechanism 200 and the myopia training mechanism 300 are arranged in a vertical direction;
the switching mechanism 400 includes a lifting portion for driving the image capturing mechanism 200 or the myopia training mechanism 300 located below to move upward to be opposite to the output port 110.
The lifting part may be a transmission mechanism such as a cylinder, a lifting rod, a rack, or a belt, for example.
Hereinafter, an initial state in which the image acquisition mechanism 200 is disposed above the myopia training mechanism 300 and the output port 110 is opposed to the image acquisition mechanism 200 will be described.
In the initial state, the output port 110 is opposite to the image acquisition mechanism 200, the image acquisition mechanism 200 works, and the myopia training mechanism 300 stops working;
when the myopia training mechanism 300 needs to work, the lifting part 130 drives the myopia training mechanism 300 to lift to a position to replace the image acquisition mechanism 200 so as to achieve matching with the output port 110.
In an alternative to this embodiment, the light meter further includes a pose adjustment mechanism 140, the pose adjustment mechanism 140 being configured to rotatably adjust the angles of the image acquisition mechanism 200 and the myopia training mechanism 300.
Specifically:
the posture adjustment mechanism 140 includes a rotating portion provided with a rotation shaft 141, and the rotation shaft 141 is perpendicular to the detection light path direction of the image acquisition mechanism 200 or the myopia training mechanism 300 in the horizontal plane.
In order to match the posture adjustment mechanism 140, the lifting portion 130 is configured as a flexible structure, and the lifting portion 130 is bent after the posture adjustment mechanism 140 adjusts the angle of the image acquisition mechanism 200 or the myopia training mechanism 300, and for a specific state, please refer to fig. 4.
In an alternative to this embodiment, the output port 110 may be provided as an eye shield, which is opposite to the human eye.
In an alternative to this embodiment, the light feeding instrument further includes a base 120, and the image acquisition mechanism 200 and the myopia training mechanism 300 are both located above the base 120, and the switching mechanism 400 is located above the base 120 and on the input side of the image acquisition mechanism 200 and the myopia training mechanism 300.
In an alternative of this embodiment, the light feeding instrument further includes a main control module, which is respectively in communication connection with the image acquisition mechanism 200 and the myopia training mechanism 300; the main control module can automatically control the opening of the image acquisition mechanism 200 after detecting whether an object approaches the output port 110, and can analyze the fundus image acquired by the image acquisition mechanism 200, can control the image acquisition mechanism 200 to shoot again if the image is unclear, can analyze the characteristic information of the fundus image according to a prestored fundus image analysis method if the image is clear, and can formulate a training mode special for a user to control the opening time, the laser intensity and the like of the myopia training mechanism 300, and feed back the opening time, the laser intensity and the like to the myopia training mechanism 300 to execute, so that accurate, safe and efficient myopia training is achieved.
In an alternative to this embodiment, the nursing instrument further includes a data storage module communicatively coupled to the image acquisition mechanism 200 and the myopia training mechanism 300, respectively, for acquiring and storing user fundus image data and myopia training data. The data storage module may be combined with the master control module.
In an alternative scheme of this embodiment, the body 100 is provided with an inductor, and the inductor is used for detecting whether a user approaches, and whether the user starts to use, and the main control module can receive the induction signal of the inductor, and automatically switch on and off. The sensor may be any one or a combination of pressure sensors, temperature sensors, photosensitive elements, etc.
The body 100 further includes a display mechanism 160, where the display mechanism 160 is used to display fundus images or control programs, so that the user can observe and use the fundus images or control programs conveniently, and the display mechanism 160 can be movably and overturned, so that the user can operate flexibly.
In an alternative to this embodiment, the body 100 further includes a pupil distance adjustment mechanism 150, and since the pupil distance is different for each user, the pupil distance adjustment mechanism 150 is required to perform positional adjustment of the image capturing mechanism 200 and the myopia training mechanism 300.
In an alternative of this embodiment, the pupil distance adjusting mechanism 150 may also be disposed in the main control module, and automatically adjust.
Optionally, the body 100 further includes a liftable head support mechanism (not shown in the drawings), on which a user can place a chin, so as to support the user's head and promote the sense of use.
In an alternative scheme of the embodiment, the light-feeding instrument further comprises a voice reminding module for reminding a user of the notice during use, for example, when photographing is unclear and re-photographing is needed, voice reminding can be performed.
In an alternative scheme of the embodiment, the utility model is also provided with a timing module, the timing module can superimpose the fundus image shooting time and the myopia training mechanism using time on fundus images for display, or generate timing data and send the timing data to a cloud server for storage along with fundus image forming data packets, and the setting is convenient for a user and scientific researchers to observe and find fundus structure changes before and after the use of the light-feeding instrument, so that accurate data is provided for scientific research.
For the working principle of the image acquisition mechanism 200, refer to fig. 5 specifically:
the image acquisition mechanism 200 includes an imaging assembly 210 and a spectroscopic assembly 220 disposed downstream of the imaging assembly 210 in the optical path direction;
the beam splitter 220 includes an imaging device group including three upper imaging devices 225, a middle imaging device 224 and a lower imaging device 227 arranged in a vertical direction and independent of each other; the upper imaging device 225 and the lower imaging device 227 are provided with filters 226 of different center wavelengths at a side portion near the imaging assembly 210. The intermediate imaging device 224 is a single-lens reflex camera for taking fundus color photographs, and the upper imaging device 225 and the lower imaging device 227 are CCD or CMOS imaging devices.
The light splitting assembly 220 further includes a first lens 221, an optical modulation device 222, and a second lens 223 disposed upstream of the imaging device group along the optical path, the first lens 221, the optical modulation device 222, and the second lens 223 being disposed in order along the optical path; the focal lengths of the first lens 221 and the second lens 223 are each f.
The imaging assembly 210 includes a web objective 211 and an imaging objective 212 sequentially arranged along the optical path; the distance between the intermediate image plane of the imaging assembly 210 and the first lens 221, the distance between the first lens 221 and the optical modulator 222, the distance between the optical modulator 222 and the second lens 223, and the distance between the second lens 223 and the imaging device are all f.
The image acquisition mechanism 200 achieves the purpose of focusing through the front-back movement of the imaging objective lens 212 through the 4f combination design of the imaging assembly 210 and the light splitting assembly 220, so that the size and components of the light feeding instrument are greatly reduced, and the cost is saved; by the design of the 4 f-based light splitting assembly 220, fundus color illumination and two fundus images under different single wavelengths can be obtained simultaneously, and blood oxygen saturation images of the fundus can be obtained. That is, a fundus image reflecting structural and functional features can be obtained by one photographing. The 4f light splitting design is adopted to replace the traditional light splitting sheet and light splitting light path components, so that the structure is more compact, the cost is reduced, and the miniaturization and the convenience of the light-feeding instrument are facilitated.
For the working principle of the myopia training mechanism 300, see fig. 6 specifically:
the myopia training mechanism 300 includes a semiconductor laser 310, a condenser lens 320, and a grating sheet 330, which are disposed in this order along the laser output direction. The semiconductor laser 310 can emit laser light, the laser light sequentially passes through the condensing lens 320 and the grating sheet 330 and is emitted from the output end, a light spot is formed at the light outlet of the output port 110, the light spot simulates illumination, when the light feeding instrument is used, naked eyes aim at the output port 110, and the light spot irradiates on eyeballs to supplement the deficiency of illumination, and the vision protection, training and health care effects are achieved. If the grating sheet 330 is not provided, the light energy distribution of the laser at the light outlet of the output port 110 is uneven, the health care effect is poor, the light spot with even light energy distribution can be formed at the light outlet of the output port 110 by the grating sheet 330, the health care effect is better, the use is safer, and compared with the use of a series of lens combinations to form the light spot, the use of the grating sheet 330 is simpler and more convenient.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (10)
1. The light instrument is characterized by comprising a body, an image acquisition mechanism, a myopia training mechanism and a switching mechanism;
the body is provided with an output port;
the image acquisition mechanism and the myopia training mechanism are switched to work states through the switching mechanism;
in a first working state, the switching mechanism drives one of the image acquisition mechanism or the myopia training mechanism to be opposite to the output port;
in a second working state, the switching mechanism drives the other of the image acquisition mechanism or the myopia training mechanism to be opposite to the output port.
2. The light meter of claim 1, wherein,
the image acquisition mechanism and the myopia training mechanism are arranged in the upper and lower directions;
the switching mechanism comprises a lifting part, and the output port is arranged at the top of the lifting part;
the lifting part is used for driving the output port to be opposite to the image acquisition mechanism or the myopia training mechanism.
3. The light meter of claim 1, wherein,
the image acquisition mechanism and the myopia training mechanism are arranged in left and right directions;
the switching mechanism comprises a transverse moving part, and the output port is arranged on the transverse moving part;
the traversing part is used for driving the output port to be opposite to the image acquisition mechanism or the myopia training mechanism.
4. The light meter of claim 2, wherein,
the light-feeding instrument further comprises a gesture adjusting mechanism, wherein the gesture adjusting mechanism is used for rotationally adjusting the angle of the image acquisition mechanism and/or the myopia training mechanism.
5. The light meter of claim 4, wherein,
the gesture adjusting mechanism comprises a rotating part, wherein the rotating part is provided with a rotating shaft, and the rotating shaft is perpendicular to the detection light path direction of the image acquisition mechanism or the myopia training mechanism in a horizontal plane.
6. The light meter of claim 5, wherein,
the lifting part is of a flexible structure, and is bent after the gesture adjusting mechanism adjusts the angle of the image acquisition mechanism or the myopia training mechanism.
7. The light meter of claim 1, wherein,
the output port is provided with an inductor, and the inductor is used for detecting whether a user approaches.
8. The light meter of claim 1, wherein,
the body is provided with a pupil distance adjusting mechanism.
9. The light meter of claim 1, wherein,
the body is provided with a display mechanism.
10. The light meter of claim 1, wherein,
the body is also provided with a liftable head supporting mechanism, and the liftable head supporting mechanism is arranged below the output port and is used for supporting the mandible of a user.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320793525.XU CN219558507U (en) | 2023-04-11 | 2023-04-11 | Light feeding instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320793525.XU CN219558507U (en) | 2023-04-11 | 2023-04-11 | Light feeding instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219558507U true CN219558507U (en) | 2023-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320793525.XU Active CN219558507U (en) | 2023-04-11 | 2023-04-11 | Light feeding instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219558507U (en) |
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2023
- 2023-04-11 CN CN202320793525.XU patent/CN219558507U/en active Active
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