Myopia prevention and control passive tele-imaging reading and writing device

Abstract

The present application relates to the application in the field of optical image technology myopia prevention passive tele-imaging reading and writing equipment, through the setting of reading monitoring unit, the time of continuous reading of the reader can be monitored, when long time continuous reading occurs, the four edges of the curved mirror can be controlled to present the floating state of the fluctuation in turn, the optical path is constantly changing, and then the reading image formed on the imaging panel constantly presents physical changes, so that the reader can take a break in time, effectively avoid the continuous reading situation, compared with the prior art, further improve the effect of preventing myopia; in addition, with the setting of the curved mirror monitoring unit, the position of the floating curved mirror can be monitored, so that the curved mirror can be restored to the initial state, effectively ensuring that the reading image returns to normal, and facilitating reading again.

Description

TECHNICAL FIELD

[0001] The present application relates to myopia prevention and control reading and writing equipment, in particular to passive tele-imaging reading and writing equipment applied to the field of optical image technology. BACKGROUND

[0002] The existing tele-imaging reading and writing device is often bulky, has a short viewing distance, and is complex to operate, making it difficult to meet the needs of various occasions. In particular, in a home learning environment, a compact, easily foldable, and simple-to-operate tele-imaging reading and writing device is needed to achieve fast and accurate image reading and writing, while protecting vision and preventing and delaying the occurrence and development of myopia.

[0003] Based on the above problems, foldable desktop passive tele-imaging reading and writing devices have appeared on the market, such as the passive tele-imaging reading and writing device and device adjustment method of Chinese patent CN119644606A, and the intelligent adjustable anti-myopia tele-imaging device and its adjustment control method of Chinese patent CN118068513A.

[0004] However, the above-mentioned patents all solve the problem of close-range eye use, but for readers, the eye use distance and continuous eye use time will both affect vision. For reading and writing equipment, the time of continuous reading by the reader is rarely monitored. Generally, the reader reminds himself through setting an alarm clock, a mobile phone APP message pop-up window, etc. For readers with high reading needs, such reminder information is easy to be ignored, resulting in limited effect of myopia prevention and control on the reader. SUMMARY

[0005] In view of the above prior art, the technical problem to be solved by the present application is that the existing reading and writing equipment focuses on the influence of close-range eye use on vision, but ignores the problem that long-time continuous reading also easily affects vision.

[0006] To solve the above problems, the present application provides a passive tele-imaging reading and writing device for myopia prevention and control, which comprises a front frame, a middle frame and a bottom frame hingedly connected to each other, and a curved mirror, a plane mirror and an imaging panel are respectively arranged inside the three frames. Two hydraulic rods are connected between the front frame and the middle frame and between the middle frame and the bottom frame. A stand is fixedly connected to the back of the bottom frame, and a U-shaped base is fixedly connected to the bottom of the stand. Arc-shaped struts are fixedly connected to the inner walls of the left and right sides of the front frame by bolts. Outer protective edges are connected to the outer ends of the left and right edges of the curved mirror. The two outer protective edges are respectively arranged above the two arc-shaped struts. A reading monitoring unit is installed at one end of the front frame away from the hinged side. The reading monitoring unit comprises a miniature camera, a timing unit and a control chip connected to the signals of the two. The control chip is integrated with a data processing module.

[0007] The front and rear inner walls of the front frame are provided with adjusting units, two adjusting units correspond to the front and rear ends of the curved mirror respectively, the adjusting unit comprises a lining plate fixedly connected with the front frame, a position adjusting column arranged between the upper end of the lining plate and the lower end of the curved mirror, and a buffer column arranged between the inner top of the front frame and the curved mirror, the ends of the position adjusting column and the buffer column close to each other are bonded with the curved mirror, and the ends of the position adjusting column and the buffer column away from each other are fixedly connected with the lining plate and the front frame respectively.

[0008] In the myopia prevention and control passive tele-imaging reading and writing device, through the setting of the reading monitoring unit, the reading time of the reader can be monitored, when the long-time continuous reading occurs, the four edges of the curved mirror can be controlled to present the floating state of the four edges rising in turn, the optical path is changed continuously, and then the reading image formed on the imaging panel presents physical changes continuously, so that the reader can take a break in time, and the continuous reading situation can be effectively avoided, compared with the prior art, the effect of preventing myopia is further improved.

[0009] As a further improvement of the present application, the left and right outer ends of the middle frame are threadedly connected with positioning rods, two sector-shaped blocks are movably penetrated through the two positioning rods, the outer ends of the two inclined surfaces of the sector-shaped block are fixedly connected with a clamping strip, the end faces of the front frame, the middle frame and the bottom frame close to each other are all excavated with limiting grooves, the limiting grooves and the clamping strip are matched with each other, the sector-shaped block is sector-shaped, and the included angle between the unfolded front frame and the bottom frame is 90°.

[0010] As a further improvement of the present application, the position adjusting column comprises a pushing layer, a buffer layer and a corrugated pipe fixedly connected between the two layers, the buffer layer is located below the pushing layer, the lower end of the pushing layer is further fixedly connected with an electromagnetic plate, and the lower end of the electromagnetic plate is in contact with the buffer layer.

[0011] As a further improvement of the present application, the inside of the lining plate is fixedly embedded with two electromagnetic strips corresponding to the position adjusting columns respectively, the electromagnetic plate is made of ferromagnetic material, and the electromagnetic strips generate magnetic repulsion to the electromagnetic plate after being electrified.

[0012] As a further improvement of the present application, the buffer column is made of high-resilience material, the corrugated pipe is of elastic corrugated structure, the buffer layer is made of hard rubber material, and the distance between the two position adjusting columns is not less than 1 / 3 of the width of the curved mirror.

[0013] The use method of the myopia prevention and control passive tele-imaging reading and writing device comprises the following steps:

[0014] S1, first, the reading material to be read is placed between the two arms of the U-shaped base, then the front frame, the middle frame and the bottom frame are unfolded, the front frame and the bottom frame present a perpendicular state, then the middle frame is rotated up and down to adjust the position until the imaging panel in the bottom frame presents a clear and enlarged reading image;

[0015] S2, the line of sight of the reader directly passes through the plane mirror and falls on the reading material image for reading;

[0016] S3, the reading monitoring unit monitors the continuous reading of the reader, when the continuous reading time exceeds the preset threshold value in the timing unit, the control chip controls the four electromagnetic strips to be sequentially turned on and off, so that the four positioning columns are sequentially lifted, and then the four edges of the curved mirror present a floating state of sequentially rising and falling, and then the reading material image on the imaging panel changes constantly;

[0017] S4, by constantly controlling the physical change of the reading material image, the reminder of long-time continuous reading of the reader is achieved, so that the reader can make certain adjustments, and the effect of preventing myopia of the reader is better.

[0018] As another improvement of the present application, the four adjusting units are further provided with a curved mirror monitoring unit, which comprises an adjusting ring installed on the outer end of one of the push layers through an electric shaft, a laser fixedly installed on the outer end of the adjusting ring, and a monitoring ring fixedly sleeved on the outer end of the other three push layers.

[0019] As a supplement to the further improvement of the present application, the emitting end of the laser is perpendicular to the central axis of the push layer, the positions of the monitoring ring and the adjusting ring relative to the push layer are the same, and the surface of the monitoring ring is coated with a reflective layer.

[0020] In summary, through the setting of the reading monitoring unit, the continuous reading time of the reader can be monitored, when the long-time continuous reading occurs, the four edges of the curved mirror can be controlled to present a floating state of sequentially rising and falling, so that the optical path changes constantly, and then the reading material image formed on the imaging panel constantly presents physical changes, so that the reader can take a break in time, effectively avoiding the occurrence of continuous reading, compared with the prior art, the effect of preventing myopia is further improved; in addition, with the setting of the curved mirror monitoring unit, the position of the floating curved mirror can be monitored, so that the curved mirror can be restored to the initial state, effectively ensuring that the reading material image returns to normal, and facilitating reading again. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a perspective view of the right side view when the first and second embodiments of the present application are used;

[0022] Figure 2 is a perspective view of the first and second embodiments of the present application;

[0023] Figure 3 is a perspective view of the back view when the first and second embodiments of the present application are used;

[0024] Figure 4 is a partial bottom view of the front frame of the first and second embodiments of the present application;

[0025] Figure 5 Fig. 2 is a schematic diagram of a front frame side view cross-section of the first and second embodiments of the present application;

[0026] Figure 6 Fig. 3 is a schematic diagram of an adjustment unit partial cross-section of the first and second embodiments of the present application;

[0027] Figure 7 Fig. 4 is a schematic diagram of the adjustment unit when the curved lens edge is lifted of the first and second embodiments of the present application;

[0028] Figure 8 Fig. 5 is a schematic diagram of the process when the curved lens single side is lifted of the first and second embodiments of the present application;

[0029] Figure 9 Fig. 6 is a schematic diagram of the reading image in normal display and abnormal display of the first and second embodiments of the present application;

[0030] Figure 10 Fig. 7 is a schematic diagram of the reading monitoring unit of the third embodiment of the present application;

[0031] Figure 11 Fig. 8 is a schematic diagram of the adjustment unit with a laser of the third embodiment of the present application;

[0032] Figure 12 Fig. 9 is a schematic diagram of the adjustment unit with a monitoring ring of the third embodiment of the present application.

[0033] Explanation of the figure:

[0034] 11 front frame, 12 middle frame, 13 bottom frame, 14 hydraulic rod, 101 curved lens, 102 outer protective edge, 103 arc-shaped support bar, 21 U-shaped base, 22 stand, 31 fan-shaped block, 32 clamping strip, 301 positioning rod, 41 backing plate, 42 position adjusting column, 43 buffer column, 421 pushing layer, 422 bellows, 423 buffer layer, 401 electromagnetic plate, 51 adjustment ring, 52 laser, 53 monitoring ring. DETAILED DESCRIPTION

[0035] The three embodiments of the present application will be described in detail below in conjunction with the drawings.

[0036] First embodiment:

[0037] Figures 1-3 A myopia prevention and control passive tele-imaging reading and writing device is shown, which comprises a front frame 11, a middle frame 12 and a bottom frame 13 hingedly connected to each other, and a curved lens 101, a plane mirror and an imaging panel are respectively arranged inside the three frames. Two hydraulic rods 14 are connected between the front frame 11 and the middle frame 12 and between the middle frame 12 and the bottom frame 13. The back of the bottom frame 13 is fixedly connected with a stand 22, and the bottom of the stand 22 is fixedly connected with a U-shaped base 21, as shown in Figure 4The inner walls of the left and right sides of the front frame 11 are fixedly connected with arc-shaped struts 103 through bolts, and the outer edges of the left and right edges of the curved mirror 101 are respectively clamped with outer protective edges 102, and the two outer protective edges 102 are respectively arranged above the two arc-shaped struts 103.

[0038] As shown in FIG. 1, the reading monitoring device comprises a front frame 11, a curved mirror 101, an adjusting unit and a reading monitoring unit. Figure 1 As shown in FIG. 1, the reading monitoring device comprises a front frame 11, a curved mirror 101, an adjusting unit and a reading monitoring unit.

[0039] As shown in FIG. 1, the reading monitoring device comprises a front frame 11, a curved mirror 101, an adjusting unit and a reading monitoring unit. Figures 4-5 The front and rear inner walls of the front frame 11 are provided with adjusting units, and the two adjusting units correspond to the front and rear ends of the curved mirror 101 respectively.

[0040] As shown in FIG. 1, the reading monitoring device comprises a front frame 11, a curved mirror 101, an adjusting unit and a reading monitoring unit. Figure 6 The adjusting unit comprises a lining plate 41 fixedly connected with the front frame 11, a position adjusting column 42 arranged between the upper end of the lining plate 41 and the lower end of the curved mirror 101, and a buffer column 43 arranged between the inner top of the front frame 11 and the curved mirror 101. The lower end of the electromagnetic plate 401 is in contact with the buffer layer 423, and the lining plate 41 is fixedly embedded with two electromagnetic strips corresponding to the position adjusting columns 42. The electromagnetic plate 401 is made of ferromagnetic material, and the electromagnetic strips generate magnetic repulsion to the electromagnetic plate 401 after being electrified. The buffer column 43 is made of high-resilience material, the bellows 422 has elastic bellows structure, and the buffer layer 423 is made of hard rubber material. The distance between the two position adjusting columns 42 is not less than 1 / 3 of the width of the curved mirror 101, so that the unilateral change of the four curved mirrors 101 as a whole is not too small, thereby effectively ensuring that the reading material image changes greatly when the curved mirrors 101 appear undulating, thereby physically interrupting the long-time continuous reading of the reader and improving the prevention and control effect of myopia.

[0041] As shown in FIG. 1, the reading monitoring device comprises a front frame 11, a curved mirror 101, an adjusting unit and a reading monitoring unit. Figure 7When the electromagnetic strip is energized, the electromagnetic plate 401 moves upward due to magnetic repulsion, thereby raising the edge of the curved mirror 101. At this time, the bellows 422 extends, and the buffer column 43 is gradually compressed, achieving a stable lifting of the curved mirror 101. The buffer column 43 also serves to buffer and protect the curved mirror 101, preventing the position change on one side of the curved mirror 101 from being too rapid and making it less likely to collide with the top of the front frame 11. After the curved mirror 101 changes position on one side, the corresponding electromagnetic strip is de-energized and loses magnetic repulsion. When the buffer column 43 recovers its deformation, it will drive the curved mirror 101 to reset, facilitating subsequent reading.

[0042] The passive distance image reading and writing device for myopia prevention and control includes the following steps in its usage:

[0043] S1. First, place the reading material between the two arms of the U-shaped base 21. Then unfold the front frame 11, the middle frame 12 and the bottom frame 13 so that the front frame 11 and the bottom frame 13 are perpendicular to each other. Then rotate the middle frame 12 up and down to adjust its position until the imaging panel inside the bottom frame 13 displays a clear and magnified image of the reading material.

[0044] S2. The reader's gaze passes directly through the plane mirror and falls on the image of the book for reading;

[0045] S3, such as Figure 8 The reading monitoring unit monitors the reader's continuous reading. When the continuous reading time exceeds a preset threshold in the timing unit, the control chip controls the four electromagnetic bars to sequentially turn on and off, causing the four adjusting posts 42 to rise in pairs, thereby causing the four edges of the curved mirror 101 to exhibit a sequentially undulating floating state. Figure 9 In the diagram, b represents the image of the reading material, and c represents the imaging panel, which causes the image of the reading material on the imaging panel to change continuously.

[0046] S4. By continuously controlling the physical changes of the images in the reading material, it serves as a reminder to the reader during prolonged continuous reading, allowing the reader to make certain adjustments and thus improving the anti-myopia effect.

[0047] In summary, by setting up the reading monitoring unit, the continuous reading time of the reader can be monitored. When a long period of continuous reading occurs, the four edges of the curved mirror 101 can be controlled to undulate in sequence, causing the optical path to change continuously. This results in the image of the reading material formed on the imaging panel constantly undergoing physical changes, allowing the reader to take a break in time and effectively preventing continuous reading. Compared with existing technologies, this further improves the effect of myopia prevention.

[0048] Second implementation method:

[0049] The embodiment adds a fan-shaped block 31 based on the first embodiment, and the remaining parts are consistent with the first embodiment.

[0050] Figures 1-3 It is shown that the left and right outer ends of the middle frame 12 are threadedly connected with positioning rods 301, two fan-shaped blocks 31 are movably penetrated on the two positioning rods 301, the two inclined outer ends of the fan-shaped block 31 are fixedly connected with a clamping strip 32, the end faces of the front frame 11, the middle frame 12 and the bottom frame 13 close to each other are all drilled with limiting grooves, the limiting grooves and the clamping strip 32 are matched with each other, the fan-shaped block 31 is fan-shaped, the included angle between the unfolded front frame 11 and the bottom frame 13 is 90°, in use, after the front frame 11, the middle frame 12 and the bottom frame 13 are unfolded, the positioning rod 301 is unscrewed, then the two fan-shaped blocks 31 are removed, and along the limiting grooves, the fan-shaped block 31 is clamped between the front frame 11 and the middle frame 12, and the other fan-shaped block 31 is clamped between the middle frame 12 and the bottom frame 13, so as to realize the stability between the front frame 11, the middle frame 12 and the bottom frame 13, and the angle deviation is not easy to occur, so as to maintain the stability of the reading image formation, and facilitate stable reading.

[0051] It is worth noting that when the reading material is placed in the fixed position between the two arms of the U-shaped base 21, the imaging panel on the bottom frame 13 can be stably imaged, in this embodiment, the central angles of the two bottom frames 13 can be consistent with the angles between the front frame 11 and the middle frame 12 and the angles between the middle frame 12 and the bottom frame 13 adjusted above, so that the angle does not need to be repeatedly adjusted every time, the convenience of use is improved, and the fan-shaped block 31 can be used as a mechanical limiting structure, so that the relative positions between the front frame 11, the middle frame 12 and the bottom frame 13 are not easy to change obviously due to the aging, creep or shortening of the hydraulic rod 14 or the gravity of the equipment itself, so that the reading image stability is higher, and the deformation is not easy to occur during reading, and the reader can read stably.

[0052] The third embodiment:

[0053] The embodiment adds a curved mirror monitoring unit based on the first or second embodiment, and the remaining parts are consistent with the first or second embodiment.

[0054] Figure 10 It is shown that the four adjusting units are also provided with curved mirror monitoring units, such as Figures 11-12The curve mirror monitoring unit comprises an adjusting ring 51 installed on the outer end of one of the pushing layers 421 through a motorized rotating shaft, a laser 52 fixedly installed on the outer end of the adjusting ring 51, and monitoring rings 53 fixedly sleeved on the outer ends of the other three pushing layers 421. The emitting end of the laser 52 is perpendicular to the central axis of the pushing layer 421, and the monitoring rings 53 and the adjusting ring 51 have the same position relative to the pushing layer 421, so that the heights of the adjusting ring 51 and the three monitoring rings 53 are consistent under normal circumstances. The surface of the monitoring ring 53 is coated with a reflective layer, so that the reflectivity of the surface of the monitoring ring 53 to light is stronger. When the light beam of the laser 52 falls on the surface of the monitoring ring 53 and the surface of other areas, there is a significant difference in the light intensity obtained, which facilitates the detection of whether the curve mirror 101 is reset.

[0055] As Figure 10 After the curve mirror 101 moves each time to change the image of the reading material, the motorized rotating shaft can be started by the control chip to drive the adjusting ring 51 to rotate, so that the light beam emitted by the laser 52 passes through the other three pushing layers 421 in turn. When the curve mirror 101 returns to the original position, the heights of the three monitoring rings 53 are still the same, at this time, the light intensity data obtained by the laser 52 when passing through the three pushing layers 421 tends to be consistent. If the curve mirror 101 is not completely reset but has a certain inclination deviation, it will cause the light beam emitted by the laser 52 to not fall on the monitoring ring 53 of the pushing layer 421. At this time, the electromagnetic strip can be controlled to pass a reverse current to assist the curve mirror 101 to reset.

[0056] Compared with the previous two embodiments, in this embodiment, the position of the curve mirror 101 can be monitored after it moves, and it can also be reset when it is abnormal, so that the reader can stably image when placing the reading material in the specified position, and it is not easy to cause the reader to re-adjust the position of the reading material or the position of the middle frame 12.

[0057] In combination with the actual needs at present, the above-mentioned embodiments adopted by the present application are not limited to this, various changes made within the knowledge range of those skilled in the art without departing from the concept of the present application still fall within the protection range of the present application.

Claims

1. A passive distance image reading and writing device for myopia prevention and control, comprising a front frame (11), a middle frame (12), and a bottom frame (13) hinged together, wherein a curved mirror (101), a plane mirror, and an imaging panel are respectively provided inside the three frames; two hydraulic rods (14) are connected between the front frame (11) and the middle frame (12), and between the middle frame (12) and the bottom frame (13); a column (22) is fixedly connected to the back of the bottom frame (13), and a U-shaped base (21) is fixedly connected to the bottom of the column (22); characterized in that: The inner walls of the left and right sides of the front frame (11) are fixed with arc-shaped support strips (103) by bolts. The outer edges of the curved mirror (101) are snapped with outer guards (102). The two outer guards (102) are respectively placed on the two arc-shaped support strips (103). A reading monitoring unit is installed at the end of the front frame (11) away from the hinge side. The reading monitoring unit includes a miniature camera, a timing unit and a control chip that is connected to the signals of the two. The control chip integrates a data processing module. The front and rear inner walls of the front frame (11) are provided with adjustment units. The two adjustment units correspond to the front and rear ends of the curved mirror (101) respectively. The adjustment unit includes a liner (41) fixedly connected to the front frame (11), an adjustment post (42) between the upper end of the liner (41) and the lower end of the curved mirror (101), and a buffer post (43) between the top of the front frame (11) and the curved mirror (101). The ends of the adjustment post (42) and the buffer post (43) that are close to each other are bonded to the curved mirror (101), and the ends that are far apart from each other are fixedly connected to the liner (41) and the front frame (11) respectively. The adjusting column (42) includes a push layer (421), a buffer layer (423), and a corrugated pipe (422) fixedly connected between the two. The buffer layer (423) is located below the push layer (421). An electromagnetic plate (401) is also fixedly connected to the lower end of the push layer (421). The lower end of the electromagnetic plate (401) is in contact with the buffer layer (423). Two electromagnetic strips corresponding to the adjusting column (42) are fixedly embedded inside the liner (41). The electromagnetic plate (401) is made of ferromagnetic material, and the electromagnetic strips generate magnetic repulsion force on the electromagnetic plate (401) after being energized.

2. The passive distance image reading and writing device for myopia prevention and control according to claim 1, characterized in that: The middle frame (12) is threaded with positioning rods (301) at both outer ends. Two fan-shaped blocks (31) are movably passed through each of the two positioning rods (301). The two inclined outer ends of the fan-shaped blocks (31) are fixedly connected with clips (32). The end faces of the front frame (11), middle frame (12) and bottom frame (13) that are close to each other are all chiseled with limiting grooves. The limiting grooves match the clips (32). The fan-shaped blocks (31) are fan-shaped. The included angle between the front frame (11) and bottom frame (13) after unfolding is 90°.

3. The passive distance image reading and writing device for myopia prevention and control according to claim 1, characterized in that: The buffer column (43) is made of a high resilience material, the corrugated tube (422) is an elastic corrugated structure, the buffer layer (423) is made of hard rubber material, and the distance between the two adjustment columns (42) is not less than 1 / 3 of the width of the curved mirror (101).

4. The passive distance image reading and writing device for myopia prevention and control according to claim 3, characterized in that: Its usage includes the following steps: S1. First, place the reading material between the two arms of the U-shaped base (21). Then unfold the front frame (11), middle frame (12) and bottom frame (13) so that the front frame (11) and bottom frame (13) are perpendicular to each other. Then rotate the middle frame (12) up and down to adjust its position until the imaging panel inside the bottom frame (13) displays a clear and magnified image of the reading material. S2. The reader's gaze passes directly through the plane mirror and falls on the image of the book for reading; S3. The reading monitoring unit monitors the reader's continuous reading. When the continuous reading time exceeds the preset threshold in the timing unit, the control chip controls the four electromagnetic bars to turn on and off in sequence, so that the four adjustment columns (42) are raised in pairs in sequence, thereby making the four edges of the curved mirror (101) appear to be in a floating state of undulation in sequence, thereby making the image of the reading material on the imaging panel change continuously. S4. By continuously controlling the physical changes of the images in the reading material, it serves as a reminder to the reader during prolonged continuous reading, allowing the reader to make certain adjustments and thus improving the anti-myopia effect.

5. The passive distance image reading and writing device for myopia prevention and control according to claim 1, characterized in that: The four adjustment units are also equipped with a curved mirror monitoring unit, which includes an adjustment ring (51) installed on the outer end of one of the push layers (421) via an electric rotating shaft, a laser (52) fixedly installed on the outer end of the adjustment ring (51), and a monitoring ring (53) fixedly sleeved on the outer ends of the other three push layers (421).

6. The passive distance image reading and writing device for myopia prevention and control according to claim 5, characterized in that: The emitting end of the laser (52) is perpendicular to the central axis of the push layer (421). The monitoring ring (53) and the adjustment ring (51) are in the same position relative to the push layer (421), and the surface of the monitoring ring (53) is coated with a reflective layer.

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