Character learning device for ciliary muscle exercise

Abstract

The utility model discloses a character learning device used for ciliary muscle exercise, a slide rail is arranged in a device main body, the slide rail is slidably connected with oppositely arranged moving mechanisms, one side of each moving mechanism is provided with a display screen, the moving mechanisms drive the display screens to transversely move along the slide rail, and the display screens are arranged on the slide rail. According to the character learning device, the moving mechanism is arranged in the character learning device to realize transverse movement of the two display screens, so that far and near changes of virtual images formed after focusing of human eyes are realized, ciliary muscles are relaxed and exercised while people learn, and the learning efficiency is improved. And the risk of myopia caused by ciliary muscle tension due to long-time short-distance reading and learning is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of character learning, especially relates to a character learning device for ciliary muscle exercise. BACKGROUND

[0002] Current medical technology believes that the process of true myopia of human eyes is irreversible, and the formation of myopia is associated with long-time and close-range reading and learning with a high probability. At present, various vision testers and so-called myopia treatment instruments on the market use the front-back movement of a display screen to change the actual optical distance between the screen and the eyes, control the actual distance and size of the screen display content, and change the corresponding content from clear to blurred, which are widely used in the testing and inspection of standard vision and the treatment instruments that claim to exercise the ciliary muscle and restore vision health. Obviously, such products aimed at vision testing and correction cannot be applied to learning scenarios, because the movement of the screen content to a distance may cause the content to be blurred visually, which is not convenient for daily learning.

[0003] There are more eyewear products on the market that do not move the screen relative to the eyes. One application is to enlarge and reduce the display content, which is only used in professional fields such as engineering maintenance, medical treatment, and traffic guidance, allowing the viewer to focus more on the details of the physical object or reminding the viewer to pay attention to the changes in the display content. This enlargement and reduction of the display content or part of it has no movement in the virtual image distance, so it cannot exercise the ciliary muscle during the work process. The second application is the promotion of VR movies and games, and VR glasses manufacturers are constantly pursuing larger and more distant virtual image effects (such as Huawei's VisionGlass, which has a virtual image screen equivalent to nearly 120 inches, and a virtual image visual distance of 4 meters). The objective world or simulated objective world is presented more realistically. Although the virtual image distance of this application can reach several meters, it is still not possible to completely relax or exercise the ciliary muscle at this fixed distance. The third application is the virtual image of the content, which is a stereoscopic space simulation application. The basic principle of this stereoscopic simulation application is that the content of the two screens is not completely consistent, but simulates the different viewing angles of the two eyes when looking at the real world, that is, the content of the two screens has a viewing angle difference. Moreover, a small screen cannot display the three-dimensional world of a large object, and the object in the distance becomes smaller and loses the obvious stereoscopic light and shadow information (such as stars several billion light-years away, which can only be seen as a light point). Due to the screen's screen effect, the size of the current screen pixels cannot support continuous movement of the virtual image at several hundred meters. Therefore, this stereoscopic simulation application relies on the different content of the different viewing angles of the two eyes to produce a stereoscopic virtual image, and the virtual image moves in the near distance, which cannot achieve learning in a completely relaxed state of the ciliary muscle.

[0004] Due to different product design purposes and different application scenarios, the above-mentioned current market, whether focusing on visual detection or claiming to treat myopia, or focusing on video images and games, is a function realized for a certain specific demand, and cannot achieve the purpose of solving the two contradictory behaviors of learning behavior and ciliary muscle exercise.

[0005] Therefore, the utility model application aims to solve the contradiction between language and character learning and eye ciliary muscle exercise, so that people can relax and exercise ciliary muscles during learning, reducing the risk of myopia caused by long-term close reading and learning. Utility model content

[0006] The utility model provides a character learning device for ciliary muscle exercise in view of the problems of prior art.

[0007] The technical scheme adopted to achieve the above-mentioned purpose is:

[0008] A character learning device for ciliary muscle exercise, comprising a device main body, characterized in that a slide rail is arranged in the device main body, two groups of moving mechanisms are arranged on the slide rail and arranged transversely, the moving mechanisms can move transversely in the device main body, a display screen is arranged on one side of each moving mechanism, and two display screens correspond to two eyes of a user respectively.

[0009] Further, the moving mechanism comprises a stepping motor, a rotating screw rod, a connecting rod, a threaded sleeve and a screen support.

[0010] The stepping motor is fixed on one side in the device main body, the rotating screw rod is fixedly connected with the output end of the stepping motor, the back surfaces of the screen support and the threaded sleeve are fixedly connected with the connecting rod, the threaded sleeve is threadedly connected with the rotating screw rod, and the connecting rod is slidably connected with the slide rail.

[0011] Further, the other end of the rotating screw rod is rotatably connected with a supporting rod, and the supporting rod is fixedly arranged in the device main body.

[0012] Further, displacement photoelectric detection devices are arranged on the slide rail oppositely and located at the initial positions and the terminal positions of the two display screens.

[0013] Further, the display screen is an electronic ink screen.

[0014] Further, the display screen is a liquid crystal display screen.

[0015] Further, a CPU, a wireless communication module and a diopter adjusting device are arranged in the device main body.

[0016] The CPU is electrically connected with the wireless communication module, the diopter adjusting device and the display screen.

[0017] The utility model has the beneficial effect that:

[0018] The utility model discloses a mobile mechanism is arranged in the character learning device, realizes the horizontal movement of two display screens, thereby realizes the far and near change of virtual image formation after the focusing of human eyes, makes people relax and exercises ciliary muscle in the learning process, reduces the risk of myopia due to the ciliary muscle tension caused by long time close reading learning. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is device structure schematic view of the utility model;

[0020] Figure 2 It is Figure 1 It is sectional view of A-A in the utility model;

[0021] Figure 3 It is the explosion schematic view in the device of the utility model;

[0022] Figure 4 It is the schematic diagram of one of display screen moving one pixel;

[0023] Figure 5 It is the schematic diagram of two display screens moving one pixel;

[0024] Figure 6 It is the composition schematic diagram of functional module in the utility model.

[0025] Among them, 1-device main body, 2-slideway, 3-display screen, 4-stepping motor, 5-rotary screw, 6-connecting rod, 7-threaded sleeve, 8-screen support, 9-supporting rod.

[0026] The drawings are only for example description, and can not be understood as the limitation of the patent; in order to better illustrate the embodiment, some components of the drawings can be omitted, enlarged or reduced, and do not represent the size of actual product; for the person skilled in the art, some well-known structures and their description in the drawings can be omitted and can be understood. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiment of the utility model will be clearly and completely described in combination with the drawings in the embodiment of the utility model.

[0028] For example, Figures 1-3As shown, this embodiment discloses a text learning device for ciliary muscle training, including a device body 1. A slide rail 2 is provided inside the device body 1. A moving mechanism is slidably connected to the slide rail 2 and disposed opposite to it. A display screen 3 is provided on one side of the moving mechanism. The moving mechanism drives the display screen 3 to move laterally along the slide rail 2. The moving mechanism includes a stepper motor 4, a rotating screw 5, a connecting rod 6, a threaded sleeve 7, and a screen bracket 8. The stepper motor 4 is fixedly disposed inside the device body 1 on one side. The rotating screw 5 is fixedly connected to the output end of the stepper motor 4. The back of the mounting bracket 8 is fixedly connected to the connecting rod 6 and the threaded sleeve 7 respectively. The threaded sleeve 7 is threadedly connected to the rotating screw 5. The connecting rod 6 is slidably connected to the slide rail 2. A support rod 9 is rotatably connected to the other end of the rotating screw 5. The support rod 9 is fixedly disposed inside the device body 1. A displacement photoelectric detection device is disposed opposite to each other on the slide rail 2 at the initial position and the end position of the two display screens 3. The device body 1 also includes a wireless communication module and a diopter adjustment device.

[0029] like Figures 1-3 As shown, display screen 3 can be either an e-ink screen or an LCD screen.

[0030] like Figures 1-3 As shown, the refractive power adjustment device inside the main body 1 consists of a lens group, which includes a convex lens and a concave lens. By adjusting the lens group, the eyes with different degrees of myopia can be matched with appropriate refractive power, enabling learners and ciliary muscle trainers to clearly recognize the language and text displayed on the screen. The distance between the two lens groups can be adjusted to match the pupillary distance of different users.

[0031] like Figures 1-3 As shown, the structure in this embodiment can be a headband for convenient and flexible use; or it can be a desktop type, which can eliminate the load on the cervical spine during long-term study and ciliary muscle exercises, making it more suitable for younger people to use when studying and exercising their ciliary muscles.

[0032] like Figures 1-6 As shown, based on the aforementioned text learning device for ciliary muscle training, this embodiment also discloses a method for training the ciliary muscle, including the following steps:

[0033] Step A: Language and script data can be downloaded from the network via the wireless communication module, or language and script data can be directly imported via the input / output interface. This language and script data is stored in the memory.

[0034] Step B: Adjust the refractive power adjustment device to match the appropriate refractive power for eyes with different degrees of myopia, so that learners and ciliary muscle trainers can clearly recognize the language and text displayed on the screen, and also to adjust the pupillary distance to match different users;

[0035] Step C: during the display of a certain language content, the pulse driving module drives the stepping motor to rotate clockwise or counterclockwise according to the data information, so that the screen moves left and right, the displacement of the same language content displayed by the two screens changes the distance of the virtual image formed after the eyes focus, and the purpose of exercising the ciliary muscle while learning the language is achieved.

[0036] As Figure 4 shown, taking Huawei VR Glass glasses screen as an example, the screen diagonal is 2.1 inches, and the resolution is 1600*1600 pixels; the screen PPI is 1058. Then assuming that the screen is 16:9, the length of a pixel is 0.0277 mm; if the screen is 4:3, the length of a pixel is 0.0254 mm, assuming that the interpupillary distance of a person is 65 mm, and the screen distance from the pupil is 100 mm, when the A and B two pixel points on the screen are lit with a distance of 65 mm, the virtual image points of A and B focused are located at infinity, and the number of pixels between A and B is about 65 / 0.0277=2347, at this time, keeping the A pixel lit, extinguishing the pixel B and lighting the adjacent B' pixel, since the pixel B and the pixel B' are separated by 0.0277 mm, according to the similarity of triangles △T2BB' and △T2P3P1, the length of T2P3 is obtained: 1 / 100=2347 / D1, and D1=234.7 meters, that is, the virtual image moves a distance of about 234.7 meters when a pixel is displaced.

[0037] As Figure 4 shown, when the two screens each move one pixel, according to the similarity of triangles △T2P1O and △B'P1O', 2347 / 2 / D1=(2347 / 2-1) / (D1-100), 1172.5*D1=1173.5*D1-117350, D1=117.35 meters, that is, when the two screens each move one pixel, the virtual image moves a distance of about 117.35 meters.

[0038] As Figures 5-6As shown, when the displayed content moves one pixel (pixel side length is about 0.027 mm), the virtual image focused by the binoculars jumps from infinity to only about 235 meters, and continues to move one pixel, the virtual image of the content jumps to only about 117 meters, so it is almost impossible to achieve the desired virtual image of looking at the text content located hundreds of meters or kilometers (such as 7 kilometers) away; and if the PPI of the screen is increased, it is not easy to achieve, which is one of the reasons why there is no product on the market that can learn language and text while exercising the ciliary muscle; and the stepping motor has been widely used, which rotates 400 pulses (step angle 0.9 degrees) in a circle, and the lead screw / screw has been widely used, with a pitch of 0.35 mm, and the intermediate transmission gear ratio is 1:1, so a pulse causes the screen to move only 0.00088 mm, and further enables the virtual image to be adjusted at a longer distance.

[0039] Specifically, still assuming that the distance between the pupils is 65 mm, there are 65 / 0.00088≈73864 pulses, and when only one pulse is output to cause 1 screen displacement, as shown in Figure 3 The pixel B moves to the B' position, according to the similarity of triangles △T2BB' and △T2P3P1, the length of T2P3 can be obtained by: 1 / 100=73864 / D1, and D1=7386.4 meters, that is, the displacement caused by one pulse, and the farthest distance of the virtual image is about 7 kilometers; similarly, when two screens are displaced by one pulse, as shown in Figure 5 According to the similarity of triangles △T2P1O and △B'P1O', by 1 / 100=(73864 / 2-1) / (D1-100), D1=36932, that is, when two screens are displaced by one pixel, the distance of the virtual image is about 3.7 kilometers).

[0040] As shown in Figure 5 The specific implementation steps of the method based on the module are as follows: language and text data can be downloaded from the network through the wireless communication module, or language and text data can be directly imported through the input / output interface, and the language and text data is stored in the memory;

[0041] The first screen displays the pupil distance calibration image, such as a light point or an object. When the learner and ciliary muscle exerciser manually adjusts the distance between the lens groups of the binoculars and completes the virtual image focusing confirmation, the pupil distance is read by the CPU, and the value is taken as the reference value of infinity. When displaying language and text, the corresponding pixels in the two screens should be less than this value;

[0042] The CPU will display and play the content of the language and text selected by the learner and ciliary muscle exerciser on the display screen according to the program design, in sequence or randomly;

[0043] When displaying a certain language content, according to the program design, the information data of the screen mechanical displacement can be output, and the pulse driving module drives the stepping motor to rotate clockwise or counterclockwise according to the data information, and the transmission component drives the screen to move left and right; or the pixel group that has been output and displays the language can be directly converted to display another group of pixels at other positions on the screen; the displacement of the same language displayed by the two screens changes the distance of the virtual image formed after the eyes focus, and the purpose of learning language and exercising ciliary muscle is achieved.

[0044] The format and size of the displayed language are irrelevant to the distance of the virtual image, and only need to be selected by the learning and ciliary muscle exercising person through the control and setting module.

[0045] In the embodiment, the moving structure can also be a virtual structure, in which the two screens can be equivalent to two logical partitions of a whole large screen, and the size of the two logical partitions and the left and right movement of the displayed content in the two partitions are controlled by the CPU. In the virtual structure, the minimum unit of the left and right movement of the screen display content is the side length of a pixel in the screen, and the start and end range of the two logical partitions is limited in the whole screen interval. The two screens are two display areas corresponding to the eyes in the whole large screen, and the two areas and the displayed content are controlled by the CPU to move left and right. At the same time, the double-screen horizontal moving structure can be added synchronously during the use of the virtual structure, so that the screen display content can be adjusted by the screen mechanical displacement and the position of the lit pixel group is changed to quickly and coarsely adjust the distance of the virtual image.

[0046] In the embodiment, the setting information is also set, and the size of the displayed language can be set according to the individual interpupillary distance and diopter, and the maximum distance between the corresponding pixels in the content of the two screens is lower than the interpupillary distance, so that people can more easily and effectively exercise ciliary muscle and learn language. At the same time, the wireless communication module is arranged, so that the device can learn through the wireless communication network and upload and download the learning content. Wireless communication of multiple devices can also be used to realize synchronous display and learning of language by multiple people, which is especially suitable for synchronous teaching in school classrooms.

[0047] In the patent, the words "first", "second", etc. are used to limit the parts. Those skilled in the art should know that the use of "first" and "second" is only for the convenience of describing the utility model and simplifying the description, and the above words do not have special meanings.

[0048] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed application. The scope of protection of the present application is defined by the appended claims and equivalents thereof.

[0049] In the description of the present application, it should be understood that the terms "front", "back", "left", "right", "up", "down", "center", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application.

[0050] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A letter learning device for ciliary muscle exercise, comprising a device main body, characterized by, The device body is internally provided with a slide rail, the slide rail is slidably connected with two groups of moving mechanisms arranged in opposite transverse directions, the moving mechanisms can move in the transverse direction in the device body, one side of each moving mechanism is provided with a display screen, and the two display screens correspond to two eyes of a user respectively; The moving mechanism comprises a stepping motor, a rotating screw rod, a connecting rod, a threaded sleeve and a screen support; The stepping motor is fixedly arranged on one side in the device body, the rotating screw rod is fixedly connected with the output end of the stepping motor, the back of the screen support is fixedly connected with the connecting rod and the threaded sleeve respectively, the threaded sleeve is in threaded connection with the rotating screw rod, and the connecting rod is in sliding connection with the slide rail.

2. A text learning device for ciliary muscle exercise according to claim 1, wherein The other end of the rotating screw rod is rotatably connected with a supporting rod, and the supporting rod is fixedly arranged in the device body.

3. A text learning device for ciliary muscle exercise according to any one of claims 1-2, characterized in that, Displacement photoelectric detection devices are oppositely arranged on the slide rail and located at initial positions and terminal positions of the two display screens.

4. A text learning device for ciliary muscle exercise according to claim 3, wherein The display screen is an electronic ink screen.

5. A text learning device for ciliary muscle exercise according to claim 3, wherein The display screen is a liquid crystal display screen.

6. A text learning device for ciliary muscle exercise according to claim 4 or 5, characterized in that, The device body is internally provided with a CPU, a wireless communication module and a diopter adjusting device. The CPU is electrically connected with the wireless communication module, the diopter adjusting device and the display screen.

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