Child vision detection system based on optical imaging and refractive power calculation module

Abstract

The invention relates to the field of refractive power processing, in particular to a children vision detection system based on optical imaging and a refractive power calculation module, comprising a detection mechanism used for detecting and processing children vision; the swing adjusting mechanism is used for carrying out rotation correction treatment on the optical element, and a support plate is arranged on the swing adjusting mechanism; the mobile adjusting mechanism is used for performing focusing adjustment processing on the optical element; the detection mechanism and the movement adjusting mechanism are both arranged on the support plate. Wherein the detection mechanism comprises a fixed rail, a detection assembly is arranged at the top of the fixed rail, according to the child vision detection system based on the optical imaging and refractive power calculation module, a movie attracting sight is played on a projection screen, at the moment, the sight of a child can be focused on the projection screen, and the vision of the child can be displayed. Therefore, the effect of reducing anxiety of children caused by the strange environment is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of refractive power processing, and particularly to a children's vision detection system based on an optical imaging and refractive power calculation module. Background Art

[0002] Existing clinical examination devices for vision screening of young children can only provide detection of refractive power-related parameters and cannot provide the results of corresponding vision. Although refractive power is objective data, an abnormality in refractive power does not necessarily mean an abnormality in vision. Existing devices can only screen out eye diseases related to refractive abnormalities, and there are no reliable early warning detection means for up to 82.05% of children's eye diseases. Therefore, there is a greater need for a standardized objective vision examination device that can simultaneously screen for abnormalities in vision and refractive power and is for visual pathway abnormalities. Summary of the Invention

[0003] The present invention aims to provide a children's vision detection system based on an optical imaging and refractive power calculation module to solve the problems raised in the above background art.

[0004] To achieve the above object, the present invention provides the following technical solution: A children's vision detection system based on an optical imaging and refractive power calculation module, including a detection mechanism for detecting and processing children's vision; A swing adjustment mechanism for rotation correction processing of optical elements, and a support plate is provided on the swing adjustment mechanism; A moving adjustment mechanism for focusing adjustment processing of optical elements; Both the detection mechanism and the moving adjustment mechanism are provided on the support plate; Among them, the detection mechanism includes a fixed rail, and a detection component is provided on the top of the fixed rail; The detection component includes a folding plate, and a hinge seat and an eyepiece objective are respectively fixedly connected to the outside of the folding plate. A sleeve rod is sleeved inside the hinge seat. The eyepiece objective is composed of an eyepiece and an objective lens and is used for adjusting the depth of field and real image.

[0005] Preferably, a focusing lens and an imaging objective are provided inside the folding plate. A detector is provided on the side of the imaging objective away from the focusing lens. The detector is used for collecting fundus images and performing fitting and calibration processing.

[0006] Preferably, the focusing lens is used for adjusting the focal position to make the imaging clear, and the imaging objective is used for forming an initial real image. The combination of the two makes the imaging clear, improves the imaging quality and expands other functions.

[0007] Preferably, the detection mechanism further includes an electric push rod, which is fixedly connected to the fixed rail. One end of the electric push rod away from the fixed rail is fixedly connected with a connecting piece, and one end of the connecting piece away from the electric push rod is fixedly connected with a compensation rail, and the compensation rail is slidably fitted inside the fixed rail; Among them, the electric push rod indirectly drives the compensation rail to extend outwards to increase the fixed length of the fixed rail.

[0008] Preferably, a circular frame is fixedly connected to the top of the compensation rail, an inner sleeve is fixedly connected inside the circular frame, a first telescopic rod is fixedly connected inside the inner sleeve, a telescopic ring rod is fixedly connected to the telescopic end of the first telescopic rod, both ends of the telescopic ring rod are fixedly connected with sliding plates, the sliding plates are inserted outside the circular frame, and the outside of the sliding plates is fixedly connected with a sleeve rod; Among them, the sliding frame extends into the circular frame to focus on the center of the circular frame.

[0009] Preferably, the detection component further includes a hydraulic rod, which is fixedly connected inside the folding plate. A projection screen is arranged at the top of the hydraulic rod, and an extension strip is fixedly connected to the outside of the projection screen; A pipe rack is fixedly connected to the outside of the folding plate. A trachea is connected to the central part of the pipe rack. An inner ring is fixedly connected inside the trachea. A spring is fixedly connected to the outside of the inner ring. One end of the spring away from the inner ring is fixedly connected with a first resilient strip, and the first resilient strip penetrates through the end face of the trachea. The top end of the first resilient strip is connected to the sleeve rod. A second resilient strip is sleeved at one end of the trachea away from the first resilient strip, and an elastic strip is fixedly connected to the outside of the second resilient strip, and the elastic strip is fixedly connected to the trachea.

[0010] Preferably, the moving and adjusting mechanism includes a biaxial motor, which is fixedly installed on the support plate. The output end of the biaxial motor is slidably fitted with a moving plate, and a first bearing seat is extrusion-fitted on the outside of the moving plate. The outside of the first bearing seat is fixedly connected with a bottom rod, and the first bearing seat is movable; An insertion rod is fixedly connected to the outside of the moving plate. The end of the insertion rod away from the moving plate is inserted with an embedded plate, and a clamping block is fixedly connected inside the embedded plate.

[0011] Preferably, a threaded rod is fixedly connected to the central part of the embedded plate. A second bearing seat is extrusion-fitted on the outside of the threaded rod, and the second bearing seat is fixedly connected to the support plate. A threaded sleeve is threadedly connected to the outside of the threaded rod, and the outside of the threaded sleeve is fixedly connected with the folding plate, and a computing component is installed on the outside of the threaded sleeve; A U-shaped rod is fixedly connected to the outer side of the bottom rod. A patch is fixedly connected to the bottom of the U-shaped rod. A driving telescopic rod is fixedly connected to the outer side of the patch. One end of the driving telescopic rod away from the patch is fixedly connected to the support plate.

[0012] Preferably, the swing adjustment mechanism includes a universal joint. The universal joint is fixedly connected to the bottom of the support plate. A second telescopic rod is connected to the bottom of the universal joint. A support frame is fixedly connected to the bottom of the second telescopic rod. A central shaft is rotatably connected to the central part of the support frame. The central shaft is fixedly connected to the support plate. A first gear is fixedly connected to the end face of the central shaft. A second gear is meshed and driven on the outer side of the first gear. A sliding sleeve is fixedly connected to the inner side of the second gear. A sliding block is fixedly connected to the inner side of the sliding sleeve. The sliding block is slidably fitted on the output end of the dual-axis motor. A third bearing seat is connected to the outer side of the sliding sleeve. The bottom of the third bearing seat is fixedly connected to the U-shaped rod.

[0013] An optical imaging and refractive power calculation system, which is composed of a calculation detector, a dual-axis motor and a driving telescopic rod. The calculation detector includes a detector and a control terminal. The control terminal is arranged inside the detector. The detector and the control terminal are signal-connected. The detector is used for collecting data on the actions performed by the human body. The control terminal is composed of a receiving unit, a processing unit and an output unit. Receiving unit: Receive the fundus images sensed by the detector. Processing unit: Fit the image quality data and calculate the motor position data at the best position of the image based on the fitting result. Output unit: Calculate the refractive power through the motor position data and the focusing curve.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. By playing an eye-catching film on the projection screen, the children's eyes will focus on the projection screen at this time, thereby reducing the anxiety of children due to being in a strange environment.

[0015] 2. First, the movement and retraction of the projection screen and the folding of the sliding plate attract the children's sight, thereby avoiding the problem of accommodative spasm of the eyes caused by the children staring at one place for a long time; second, it relaxes the body and mind of the children and avoids the situation of fidgeting.

[0016] 3. The threaded sleeve moves forward along the threaded rod, taking the folding plate along with it, thereby using the dual-axis motor to drive the optical component to compensate for the refractive power of different eyeballs and achieve clear imaging.

[0017] 4. The central axis is supported by the support frame, so the support plate will deflect through the central axis, thereby making the optical component coincide with the child's line of sight and avoiding the child from adjusting the line of sight to coincide with the optical component. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is a schematic external structure diagram of the children's vision detection system based on the optical imaging and refractive power calculation module of the present invention.

[0019] Figure 2 FIG. is a schematic structure diagram of the detection mechanism of the present invention.

[0020] Figure 3 FIG. is a schematic structure diagram of some components of the detection mechanism of the present invention.

[0021] Figure 4 FIG. is a schematic cross-sectional structure diagram of the optical component of the detection component of the present invention.

[0022] Figure 5 FIG. is a schematic full cross-sectional structure diagram of the detection component of the present invention.

[0023] Figure 6 FIG. is a schematic cross-sectional structure diagram of some components of the detection component of the present invention.

[0024] Figure 7 FIG. is a schematic cross-sectional structure diagram of the moving adjustment mechanism of the present invention.

[0025] Figure 8 For the present invention Figure 7 The enlarged schematic structure diagram at A.

[0026] Figure 9 FIG. is a schematic structure diagram of some components of the moving adjustment mechanism of the present invention.

[0027] Figure 10 FIG. is a schematic bottom structure diagram of the swing adjustment mechanism of the present invention.

[0028] Figure 11 FIG. is a schematic cross-sectional structure diagram of the swing adjustment mechanism of the present invention.

[0029] Figure 12 For the present invention Figure 11 The enlarged schematic structure diagram at B.

[0030] Figure 13 FIG. is a flowchart of the children's vision detection system based on the optical imaging and refractive power calculation module of the present invention.

[0031] In the figure: 1, support plate; 2, detection mechanism; 3, swing adjustment mechanism; 4, moving adjustment mechanism; 21, fixed rail; 22, detection component; 23, electric push rod; 24, connecting piece; 25, compensation rail; 26, circular frame; 27, inner race; 28, first telescopic rod; 29, telescopic ring rod; 20, sliding plate; 221, folding plate; 222, hinge seat; 223, sleeve rod; 224, focusing lens; 225, imaging objective lens; 226, detector; 227, hydraulic rod; 228, projection screen; 229, extension bar; 220, eyepiece objective lens; 51, pipe support; 52, air pipe; 53, inner ring; 54, spring; 55, first resilient strip; 56, second resilient strip; 57, elastic strip; 41, biaxial motor; 42, moving plate; 43, first bearing seat; 45, bottom rod; 46, plug rod; 47, inserted plate; 48, clamping block; 49, threaded rod; 40, second bearing seat; 402, threaded sleeve; 403, computing component; 404, U-shaped rod; 405, patch; 406, driving telescopic rod; 31, universal joint; 32, second telescopic rod; 33, support frame; 34, central axis; 35, first gear; 36, second gear; 37, sliding sleeve; 38, slider; 39, third bearing seat. Specific embodiments

[0032] Next, in combination with the accompanying drawings and specific embodiments, the present invention will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be combined arbitrarily to form new embodiments. It should be known that the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0033] Please refer to Figures 1 to 13 , the present invention provides a technical solution: as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 shown, including a detection mechanism 2 for detecting and processing children's vision; a swing adjustment mechanism 3 for rotating and correcting optical elements. A support plate 1 is provided on the swing adjustment mechanism 3; a moving adjustment mechanism 4 for focusing adjustment of optical elements; Both the detection mechanism 2 and the moving adjustment mechanism 4 are provided on the support plate 1.

[0034] Among them, the detection mechanism 2 includes a fixed rail 21. A detection component 22 is arranged on the top of the fixed rail 21. The detection component 22 includes a folding plate 221. A hinge seat 222 and an eyepiece objective lens 220 are respectively fixedly connected to the outer side of the folding plate 221. A sleeve rod 223 is sleeved inside the hinge seat 222. A focusing lens 224 and an imaging objective lens 225 are arranged inside the folding plate 221. A detector 226 is arranged on the side of the imaging objective lens 225 away from the focusing lens 224.

[0035] The detection mechanism 2 further includes an electric push rod 23. The electric push rod 23 is fixedly connected to the fixed rail 21. One end of the electric push rod 23 away from the fixed rail 21 is fixedly connected to a connecting plate 24. One end of the connecting plate 24 away from the electric push rod 23 is fixedly connected to a compensation rail 25. The compensation rail 25 is slidably fitted inside the fixed rail 21. The top of the compensation rail 25 is fixedly connected to a circular frame 26. An inner ring 27 is fixedly connected inside the circular frame 26. A first telescopic rod 28 is fixedly connected inside the inner ring 27. The telescopic end of the first telescopic rod 28 is fixedly connected to a telescopic ring rod 29. The functions of the telescopic ring rod 29 and the first telescopic rod 28 are that when the sliding plate 20 at the top is inserted into the circular frame 26, the other two sliding plates 20 will also be synchronously inserted into the circular frame 26. Both ends of the telescopic ring rod 29 are fixedly connected to the sliding plate 20. The sliding plate 20 is inserted outside the circular frame 26. The outer side of the sliding plate 20 is fixedly connected to the sleeve rod 223.

[0036] The detection component 22 further includes a hydraulic rod 227. The hydraulic rod 227 is fixedly connected inside the folding plate 221. A projection screen 228 is arranged at the top of the hydraulic rod 227. Initially, the eyeball to be tested by the child is aligned with the center of the circular frame 26 on the same center line, and the child is kept stationary. Immediately afterwards, an eye-catching video is played on the projection screen 228. At this time, the child's gaze will focus on the projection screen 228, thus playing a role in reducing the anxiety of the child due to being in an unfamiliar environment. An extension strip 229 is fixedly connected to the outside of the projection screen 228, and a pipe support 51 is fixedly connected to the outside of the folding plate 221. The center of the pipe support 51 is connected to an air pipe 52. An inner ring 53 is fixedly connected inside the air pipe 52. A spring 54 is fixedly connected to the outside of the inner ring 53. One end of the spring 54 away from the inner ring 53 is fixedly connected to a first resilient strip 55. The first resilient strip 55 penetrates through the end face of the air pipe 52, and the top end of the first resilient strip 55 is connected to the sleeve rod 223. One end of the air pipe 52 away from the first resilient strip 55 is sleeved with a second resilient strip 56. An elastic strip 57 is fixedly connected to the outside of the second resilient strip 56, and the elastic strip 57 is fixedly connected to the air pipe 52. After a period of time, the hydraulic rod 227 is activated, so that the projection screen 228 connected to its top end will move downward with the extension strip 229 until the projection screen 228 is retracted into the folding plate 221. Subsequently, the extension strip 229 will move downward and squeeze the second resilient strip 56. The squeezed second resilient strip 56 will compress the elastic strip 57 and enter the air pipe 52. The inside of the air pipe 52 is filled with gas. Therefore, the compressed gas will move towards the other end and squeeze the first resilient strip 55 outward. Immediately afterwards, the first resilient strip 55 squeezed by the gas will stretch the spring 54 and push the sleeve rod 223 upward. Since the sleeve rod 223 is sleeved on the hinge seat 222, the other end of the sleeve rod 223 will drive the sliding plate 20 to insert into the inside of the circular frame 26. Finally, the three sliding plates 20 will form a circle and attract the child's gaze to focus on the center of the circle. As described above, as the projection screen 228 moves downward, the child's line of sight will also move downward accordingly. However, when the projection screen 228 disappears, the contraction of the sliding plate 20 will replace the function of the projection screen 228, so that the child will finally focus on the center as the sliding plate 20 moves. First, the movement and retraction of the projection screen 228 and the folding of the sliding plate 20 play a role in attracting the child's line of sight, thus avoiding the problem of accommodative spasm of the eyeball caused by the child staring at one place for a long time; Second, it plays a role in relaxing the child's body and mind and avoiding restlessness.

[0037] Such as Figure 7 、 Figure 8 and Figure 9As shown, the movable adjustment mechanism 4 includes a dual-axis motor 41, which is fixedly mounted on the bracket plate 1, and the output end of the dual-axis motor 41 is slidably adapted with a shift plate 42, and the outer side of the shift plate 42 is extrusion-adapted with a No. 1 bearing seat 43, and the outer side of the No. 1 bearing seat 43 is fixedly connected with a bottom rod 45, and the outer side of the shift plate 42 is fixedly connected with an insertion rod 46, and the end of the insertion rod 46 away from the shift plate 42 is plugged with an insert plate 47, and the interior of the insert plate 47 is fixedly connected with a clamping block 48.

[0038] A threaded rod 49 is fixedly connected to the center of the inlay panel 47, and a No. 2 bearing seat 40 is extruded and adapted on the outer side of the threaded rod 49, and the No. 2 bearing seat 40 is fixedly connected to the bracket plate 1. A threaded sleeve 402 is threadedly connected to the outer side of the threaded rod 49, and the outer side of the threaded sleeve 402 is fixedly connected to the folding plate 221. A calculation piece 403 is installed on the outer side of the threaded sleeve 402, and a U-shaped rod 404 is fixedly connected to the outer side of the bottom rod 45, and a patch 405 is fixedly connected to the bottom of the U-shaped rod 404, and a driving telescopic rod 406 is fixedly connected to the outer side of the patch 405, and the end of the driving telescopic rod 406 away from the patch 405 is fixedly connected to the bracket plate 1. When the focus of the optical component becomes blurred, resulting in inaccurate imaging, the detector 226 will transmit the signal to the control terminal, which will then make a fitting judgment on the imaging. After the judgment is completed, the signal will be transmitted to the drive telescopic rod 406, and the drive telescopic rod 406 will start and shrink. At this time, the patch 405 connected to the telescopic end will move forward with the U-shaped rod 404, and then the No. 1 bearing seat 43 connected to one end of the U-shaped rod 404 will move forward. The inner wall of the No. 1 bearing seat 43 is squeezed and adapted with the shift plate 42, so the shift plate 42 will move forward along the front axis of the dual-axis motor 41, so that the plug connected to it 46 will move forward and be inserted into the panel 47, wherein the panel 47 is connected to the threaded rod 49, and the outer side of the threaded rod 49 is threadedly connected to the threaded sleeve 402. At this time, the dual-axis motor 41 is started, wherein the dual-axis motor 41 is reversible, so that its front end will rotate forward with the threaded rod 49, wherein the outer side of the threaded sleeve 402 is connected to the folding plate 221, and the folding plate 221 is slidably adapted on the fixed rail 21, so the threaded sleeve 402 will move forward along the threaded rod 49 and bring the folding plate 221 together, thereby utilizing the dual-axis motor 41 to drive the optical components to compensate for the refractive powers of different eyeballs and achieve clear imaging.

[0039] like Figure 10 , Figure 11 , Figure 12 and Figure 13As shown, the swing adjustment mechanism 3 includes a universal joint seat 31. The universal joint seat 31 is fixedly connected to the bottom of the support plate 1. A second telescopic rod 32 is connected to the bottom of the universal joint seat 31. The bottom of the second telescopic rod 32 is fixedly connected to a support frame 33. A central shaft 34 is rotatably connected to the central part of the support frame 33. The central shaft 34 is fixedly connected to the support plate 1. A first gear 35 is fixedly connected to the end face of the central shaft 34. A second gear 36 is meshed and driven on the outside of the first gear 35. A sliding sleeve 37 is fixedly connected to the inside of the second gear 36. A slider 38 is fixedly connected to the inside of the sliding sleeve 37. The slider 38 is slidably fitted on the output end of the dual-axis motor 41. A third bearing seat 39 is connected to the outside of the sliding sleeve 37. The bottom of the third bearing seat 39 is fixedly connected to the U-shaped rod 404. When the child's line of sight does not completely coincide with the center point of the eyepiece objective lens 220, that is, when a part of the fundus imaging of the child is missing, the driving telescopic rod 406 is started to make it extend. At this time, the U-shaped rod 404 will move backward, and at the same time, the inserting rod 46 will be pulled out from the embedded panel 47. At this time, there is no longer a connection between the dual-axis motor 41 and the threaded rod 49, and the third bearing seat 39 connected to the end of the U-shaped rod 404 will drive the sliding sleeve 37 and move backward along the tail shaft of the dual-axis motor 41 through the slider 38. The outside of the sliding sleeve 37 is connected to the second gear 36. Therefore, the second gear 36 will move backward and come into contact and mesh with the first gear 35. Subsequently, the dual-axis motor 41 is started, so that the first gear 35 will drive the central shaft 34 to rotate. The outside of the central shaft 34 is connected to the support plate 1, and the central shaft 34 is supported by the support frame 33. Therefore, the support plate 1 will deflect through the central shaft 34, so as to make the optical component coincide with the child's line of sight and avoid letting the child adjust the line of sight to coincide with the optical component.

[0040] When the present invention is in use: First, initially align the eyeball to be tested by the child with the center of the circular frame 26 on the same center line, and keep the child still. Immediately afterwards, a film that attracts the attention is played on the projection screen 228. After a period of time, the hydraulic rod 227 is started, so that the projection screen 228 connected to its top end will drive the extension strip 229 to move downward until the projection screen 228 is received into the folding plate 221. Subsequently, the extension strip 229 will move downward and squeeze the second resilient strip 56. The squeezed second resilient strip 56 will compress the elastic strip 57 and enter the air pipe 52. The inside of the air pipe 52 is filled with gas. Therefore, the compressed gas will move towards the other end and squeeze the first resilient strip 55 outward. Immediately afterwards, the first resilient strip 55 squeezed by the gas will stretch the spring 54 and push the sleeve rod 223 upward. Since the sleeve rod 223 is sleeved on the hinge seat 222, the other end of the sleeve rod 223 will drive the sliding plate 20 to insert into the inside of the circular frame 26. Finally, the three sliding plates 20 will form a circle and attract the child's attention to focus on the center of the circle.

[0041] It is established by analyzing the position of the focusing lens 224 during the process of obtaining a clear fundus structure image using a fundus imaging device, the position of the biaxial motor 41, the fundus structure, and the visual acuity of the subject. The refractive powers of different subjects are not equal. Therefore, when obtaining a clear image of the retina, the focusing lens 224 needs to be used and driven by the biaxial motor 41 to compensate for the refractive powers of different eyeballs. When the focusing lens 224 is in an appropriate position, the imaging optical path can just compensate for the refractive characteristics of the eyeball, so as to obtain the clearest fundus structure image. At the same time, the position of the biaxial motor 41 also indirectly reflects the refractive power of the eyeball. Through the optical design of the fundus imaging optical path and the feedback of the motor position, the objective refractive value of the test eye can be obtained from the focusing curve.

[0042] When the focusing of the optical component becomes blurred, the driving telescopic rod 406 is started to make it contract. At this time, the patch 405 connected to its telescopic end will drive the U-shaped rod 404 to move forward. Immediately afterwards, the first bearing seat 43 connected to one end of the U-shaped rod 404 will move forward. The inner wall of the first bearing seat 43 is in pressing fit with the moving plate 42. Therefore, the moving plate 42 will move forward along the front shaft of the biaxial motor 41, so that the plug rod 46 connected to it will move forward and insert into the embedded plate 47. The embedded plate 47 is connected to the threaded rod 49, and the outside of the threaded rod 49 is threadedly connected to the threaded sleeve 402. At this time, the biaxial motor 41 is started, and its front end will drive the threaded rod 49 to rotate forward. The outside of the threaded sleeve 402 is connected to the folding plate 221, and the folding plate 221 is slidably fitted on the fixed rail 21. Therefore, the threaded sleeve 402 will move forward along the threaded rod 49 and drive the folding plate 221 together.

[0043] When the child's line of sight does not completely coincide with the center point of the eyepiece objective 220, the driving telescopic rod 406 is started to make it extend. At this time, the U-shaped rod 404 will move backward, and at the same time, the plug rod 46 will be pulled out of the embedded plate 47. At this time, there is no longer a connection between the biaxial motor 41 and the threaded rod 49. The third bearing seat 39 connected to the tail end of the U-shaped rod 404 will drive the sliding sleeve 37 and move backward along the tail shaft of the biaxial motor 41 through the slider 38. The outside of the sliding sleeve 37 is connected to the second gear 36. Therefore, the second gear 36 will move backward and come into contact and mesh with the first gear 35. Subsequently, the biaxial motor 41 is started, so that the first gear 35 will drive the central shaft 34 to rotate. The outside of the central shaft 34 is connected to the support plate 1, and the central shaft 34 is supported by the support frame 33. Therefore, the support plate 1 will deflect through the central shaft 34 so that the child's line of sight can coincide with the optical component.

[0044] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. All kinds of transformations made by those of ordinary skill in the art starting from the above concepts without creative labor fall within the scope of protection of the present invention.

Claims

1. A children's vision detection system based on optical imaging and refractive power calculation module, characterized in that: include: Testing institutions, used for testing and processing children's vision; A swing adjustment mechanism, used for rotational correction of the optical element, wherein a support plate is provided on the swing adjustment mechanism; A mobile adjustment mechanism is used to adjust the focus of the optical element; The detection mechanism and the movement adjustment mechanism are both arranged on the support plate; The detection mechanism includes a fixed rail, and a detection component is arranged on the top of the fixed rail; The detection component includes a folding plate, the outer sides of which are respectively fixedly connected with an articulated seat and an eyepiece objective lens, the interior of the articulated seat is sleeved with a sleeve rod, wherein the eyepiece objective lens is composed of an eyepiece and an objective lens and is used to adjust the depth of field and the real image.

2. The children's vision detection system based on optical imaging and refractive power calculation module according to claim 1, characterized in that: A focusing lens and an imaging objective lens are arranged inside the folding plate, and a detector is arranged on a side of the imaging objective lens away from the focusing lens, wherein the detector is used to collect fundus images and perform fitting and correction processing.

3. The children's vision detection system based on optical imaging and refractive power calculation module according to claim 2, characterized in that: The focusing lens is used to adjust the focal position to make the image clear, while the imaging objective lens is used to form an initial real image. The combination of the two makes the image clear and improves the imaging quality.

4. The children's vision detection system based on optical imaging and refractive power calculation module according to claim 1, characterized in that: The detection mechanism also includes an electric push rod, which is fixedly connected to the fixed rail, and one end of the electric push rod away from the fixed rail is fixedly connected to a connecting piece, and one end of the connecting piece away from the electric push rod is fixedly connected to a compensation rail, and the compensation rail is slidably adapted inside the fixed rail; The electric push rod indirectly drives the compensating rail to extend outward to increase the fixed length of the fixed rail.

5. The children's vision detection system based on optical imaging and refractive power calculation module according to claim 4, characterized in that: The top of the compensation rail is fixedly connected with a circular frame, the interior of the circular frame is fixedly connected with an inner ring, the interior of the inner ring is fixedly connected with a No. 1 telescopic rod, the telescopic end of the No. 1 telescopic rod is fixedly connected with a telescopic ring rod, both ends of the telescopic ring rod are fixedly connected with sliding plates, the sliding plates are plugged into the outside of the circular frame, and the outside of the sliding plates is fixedly connected with the sleeve rod; The sliding frame extends into the circular frame to focus the eyes on the center of the circular frame.

6. The children's vision detection system based on optical imaging and refractive power calculation module according to claim 1, characterized in that: The detection mechanism further comprises a hydraulic rod, the hydraulic rod is fixedly connected to the inside of the folding plate, a projection screen is arranged on the top of the hydraulic rod, and an extension strip is fixedly connected to the outside of the projection screen; The outer side of the folding plate is fixedly connected to a pipe rack, the central part of the pipe rack is connected to an air pipe, the inside of the air pipe is fixedly connected to an inner ring, the outer side of the inner ring is fixedly connected to a spring, the end of the spring away from the inner ring is fixedly connected to a No. 1 toughness strip, the No. 1 toughness strip is inserted on the end surface of the air pipe, the top of the No. 1 toughness strip is connected to a sleeve rod, the end of the air pipe away from the No. 1 toughness strip is sleeved with a No. 2 toughness strip, the outer side of the No. 2 toughness strip is fixedly connected to an elastic strip, and the elastic strip is fixedly connected to the air pipe.

7. The children's vision detection system based on optical imaging and refractive power calculation module according to claim 1, characterized in that: The movable adjustment mechanism comprises a dual-axis motor, which is fixedly mounted on a bracket plate, and an output end of the dual-axis motor is slidably adapted with a shift plate, and a No. 1 bearing seat is squeezed and adapted on the outer side of the shift plate, and a bottom rod is fixedly connected to the outer side of the No. 1 bearing seat, wherein the No. 1 bearing seat is movable; An insert rod is fixedly connected to the outer side of the moving plate, an insert plate is inserted into one end of the insert rod away from the moving plate, and a clamp block is fixedly connected to the inside of the insert plate.

8. The children's vision detection system based on optical imaging and refractive power calculation module according to claim 7, characterized in that: A threaded rod is fixedly connected to the center of the panel, a second bearing seat is extruded and adapted on the outer side of the threaded rod, the second bearing seat is fixedly connected to the bracket plate, a threaded sleeve is threadedly connected to the outer side of the threaded rod, the outer side of the threaded sleeve is fixedly connected to the folding plate, and a calculation piece is installed on the outer side of the threaded sleeve; The outer side of the bottom rod is fixedly connected with a U-shaped rod, the bottom of the U-shaped rod is fixedly connected with a patch, the outer side of the patch is fixedly connected with a driving telescopic rod, and one end of the driving telescopic rod away from the patch is fixedly connected to the bracket plate.

9. The children's vision detection system based on optical imaging and refractive power calculation module according to claim 1, characterized in that: The swing adjustment mechanism includes a universal seat, the universal seat is fixedly connected to the bottom of the bracket plate, the bottom of the universal seat is connected to a second telescopic rod, the bottom of the second telescopic rod is fixedly connected to a support frame, the center of the support frame is rotatably connected to a central axis, and the central axis is fixedly connected to the bracket plate; The end face of the central shaft is fixedly connected to gear No. 1, the outer side of the gear No. 1 is meshed with gear No. 2, the inner side of the gear No. 2 is fixedly connected to a sleeve, the inner side of the sleeve is fixedly connected to a slider, the slider is slidably adapted on the output end of the dual-axis motor, the outer side of the sleeve is connected to bearing seat No. 3, and the bottom of the bearing seat No. 3 is fixedly connected to the U-shaped rod.

10. An optical imaging and refractive power calculation system, used in the children's vision detection system based on the optical imaging and refractive power calculation module according to any one of claims 1 to 9, characterized in that: The optical imaging and refractive power calculation system is composed of a calculation detector, a dual-axis motor and a driving telescopic rod; The calculation detector comprises a detector and a control terminal, wherein the control terminal is arranged inside the detector, and the detector and the control terminal are connected via a signal; The detector is used to collect data on the actions performed by the human body; The control terminal is composed of three parts: a receiving unit, a processing unit and an output unit; Receiving unit: receives the fundus image sensed by the detector; Processing unit: fits the image quality data and calculates the motor position data of the best position of the image based on the fitting result; Output unit: Calculate the refractive power through the motor position data and focusing curve.

Images