Visual training device

Abstract

The utility model discloses a visual training device. The visual training device comprises a control system, a display system and a user identification and tracking system, the display system comprises a plurality of display units, and the display units comprise vector pixels. The control system is electrically connected with the display system and is used for controlling display information of the display unit; the user identification and tracking system is electrically connected with the control system, and the user identification and tracking system is used for identifying identity information of a user and tracking the position of the user. The visual training device disclosed by the utility model has relatively high universality.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a vision training device. Background Technology

[0002] Strabismus is a relatively common eye disease characterized by the inability of both eyes to focus on the same target simultaneously, which seriously affects the patient's visual function and appearance.

[0003] Strabismus can typically be treated surgically or through vision training. Among these methods, 3D display training is beginning to show potential as a novel approach in the field of vision training.

[0004] However, the visual training devices in related technologies are not universally applicable to people who have lost the ability to fuse stereoscopic vision or are not sensitive to stereoscopic vision, which limits the application of visual training devices in the field of visual training. Utility Model Content

[0005] This invention provides a visual training device to improve the universality of visual training devices.

[0006] According to one aspect of the present invention, a visual training device is provided, the visual training device comprising:

[0007] Control systems, display systems, and user identification and tracking systems;

[0008] The display system includes multiple display units, and each display unit includes vector pixels;

[0009] The control system is electrically connected to the display system and is used to control the display information of the display unit;

[0010] The user identification and tracking system is electrically connected to the control system, and the user identification and tracking system is used to identify the user's identity information and track the user's location.

[0011] Optionally, the display system further includes multiple lamp posts, on which multiple display units are arranged;

[0012] The visual training device also includes a mechanical system, on which the plurality of lamp posts are arranged in a circle, and the mechanical system is used to control the rotation of the lamp posts.

[0013] Optionally, the mechanical system includes a rotary subsystem and an electric motor;

[0014] The lamp post is fixed to the rotating subsystem; the motor is used to drive the rotating subsystem to rotate.

[0015] Optionally, the rotating subsystem includes a rotating shaft and a fixed frame, the rotating shaft being located at the center of the fixed frame and fixedly connected to the fixed frame; the rotating shaft is fixedly connected to the motor, and the motor is used to drive the rotating shaft to rotate.

[0016] Optionally, the user identification and tracking system is located at the end of the rotating shaft away from the motor.

[0017] Optionally, the display system includes multiple rotating light panels, each of which is provided with a display unit;

[0018] Multiple rotating lamp disks are arranged in an array;

[0019] The control system is electrically connected to the rotating lamp panel, and the control system is used to control the rotation of the rotating lamp panel.

[0020] Optionally, the user identification and tracking system includes:

[0021] A facial recognition unit, electrically connected to the control system, is used to recognize the user's facial information;

[0022] The human eye tracking unit is electrically connected to the control system and is used to track the position of the human eye's pupil.

[0023] Optionally, the visual training device further includes an input interface;

[0024] The input interface is electrically connected to the control system, and the input interface is used to input user information and training information; and / or,

[0025] The multiple display units of the display system are also used to display training information and training status in real time.

[0026] Optionally, the visual training device further includes a display module for training information and training status, which is electrically connected to the control system and is used to display training information and training status in real time.

[0027] Optionally, the control system includes a control module, a storage module, and a communication module;

[0028] The storage module is electrically connected to the control module, and the storage module is used to store display information;

[0029] The communication module is communicatively connected to the control module, the display system, and the user identification and tracking system;

[0030] The control module is used to control the display information of the display unit.

[0031] The technical solution of this utility model embodiment employs a visual training device including a control system, a display system, and a user identification and tracking system. The display system includes multiple display units, each comprising vector pixels. The control system is electrically connected to the display system and is used to control the display information of the display units. The user identification and tracking system is electrically connected to the control system and is used to identify the user's identity information and track the user's location. The display system, including vector pixels, can project beams separately to a single eye of the user, offering high versatility. Furthermore, by setting up the user identification and tracking system, it is possible to simultaneously train multiple users and conduct training while in motion.

[0032] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A schematic diagram of the structure of a visual training device provided in an embodiment of this utility model;

[0035] Figure 2 A circuit structure diagram of a control system provided for an embodiment of this utility model;

[0036] Figure 3 This is a schematic diagram of another display system provided in an embodiment of the present utility model. Detailed Implementation

[0037] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0038] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0039] Figure 1 This is a schematic diagram of the structure of a visual training device provided in an embodiment of the present invention, with reference to... Figure 1 The visual training device includes a control system 1, a display system 2, and a user identification and tracking system 3. The display system 2 includes multiple display units 21, each of which includes vector pixels. The control system 1 is electrically connected to the display system 2 and is used to control the display information of the display units 21. The user identification and tracking system 3 is electrically connected to the control system 1 and is used to identify the user's identity information and track the user's location.

[0040] Specifically, visual training devices can be applied in the field of visual training, such as strabismus training. In strabismus training, the visual training objective is achieved by adjusting the distance d' between the left and right eyeboxes of the user. For example, if a user with esotropia (inward strabismus) currently has an interpupillary distance of d, then d' can be set to be greater than d, thereby guiding the user through training. If a user with exotropia (outward strabismus) currently has an interpupillary distance of d, then d' can be set to be less than d, thereby guiding the user through training. Of course, for users with unilateral strabismus, the visual training objective can also be achieved by fixing the eyebox area corresponding to the normal eye and adjusting the position of the eyebox corresponding to the other eye. It can be understood that the ultimate goal of visual training is to stimulate the human eye by continuously adjusting d', driving the user's eyes to gradually return to their normal position during the process of actively seeking light, allowing the eye muscles to be stretched and trained, while also stimulating the growth of optic nerve cells, ultimately making the user's interpupillary distance infinitely close to the target interpupillary distance for restoring emmetropia. In this context, "eyebox" refers to the spatial area in near-eye display systems of virtual reality (VR), augmented reality (AR), and mixed reality (MR) where the user's eyes can see complete and clear display content.

[0041] The visual training device includes multiple display units 2, which enable stereoscopic display. Each display unit 2 includes vector pixels, which are optical devices that meet the following conditions: 1. Point light source with a narrow beam. Relative to a large display scale, it can be approximated as a point-emitting light source (e.g., the light source occupies less than one ten-thousandth of the display area), and most of its emitted beams have the following properties: if the light intensity drops to 50% of the maximum light intensity of the beam as the boundary, and the light source is the center, the minimum spatial spherical angle that encompasses all boundaries is less than 10 degrees. 2. It can support projection of the above beams in at least 100 distinguishable directions. 3. It can emit the above beams simultaneously in two or more directions. 4. The brightness of the above beams supports at least 16 adjustable levels. Vector pixels are narrow beams, meaning the beam width visible to the human eye at a distance of 1 meter is 5-30 milliradians. Vector pixels can include dense display devices and optical devices. Dense display devices can be miniature light-emitting diode arrays or organic light-emitting diode arrays, etc., and optical devices can be used to image the dense display devices.

[0042] In this embodiment, vector pixels are used as the basic unit of 3D display. That is to say, display system 2 is a light field display system, which can emit narrow beams of light from vector pixels, control the emission of a specified beam, and control the position and spacing of the eye boxes of the left and right eyes separately by controlling the emission of different vector pixels. The display system can separate the beams and project them only onto the pupil of a specified single eye. The light emitted to the user's left and right eyes is consistent in brightness and resolution information, but there can be parallax in every direction in the three-dimensional direction. This is more user-friendly for people who have lost the ability to fuse stereoscopic vision or are not sensitive to stereoscopic vision.

[0043] The user identification and tracking system 3 is used to identify user information and track the position of the user's pupils. By identifying user information, targeted training content can be displayed for each user, allowing the visual training device to train multiple users simultaneously, and the training information for different users can also be different. In other words, users with esotropia and exotropia can use the same visual training device for training at the same time. In addition, the user identification and tracking system 3 can also track the position of the user's eyes. During user training, the user identification and tracking system 3 tracks the position of the user's pupils in real time and sends the pupil position to the control system 1. The control system 1 controls the corresponding display unit 21 in the display system 2 to emit light, and while controlling the eyebox distance d', it can also support training while the user is moving. It should be noted that the above-mentioned user information includes the user's identity information; the training information includes the corresponding prescription, and more specifically, it can include pupillary distance and eyebox, etc.

[0044] In summary, when the visual training device of this embodiment is working, the user identification and tracking system 3 can identify the user's identity in real time and track the position of the user's pupils, and feed this information back to the control system 1. Based on the user's identity information, the control system 1 projects the corresponding training information onto the user's pupils through the display system 2, thereby achieving the purpose of visual training.

[0045] The technical solution of this embodiment employs a visual training device including a control system, a display system, and a user identification and tracking system. The display system includes multiple display units, each comprising vector pixels. The control system is electrically connected to the display system and controls the display information of the display units. The user identification and tracking system is electrically connected to the control system and is used to identify the user's identity information and track the user's location. The display system, including vector pixels, can project beams separately to each user's single eye, applicable to both monocular and binocular esotropia and exotropia. Furthermore, by implementing the user identification and tracking system, multiple users can simultaneously undergo personalized training, as well as training while on the move. The user identification and tracking system enhances the safety of the visual training device, preventing parameter confusion among users during personalized training.

[0046] Optionally, continue to refer to Figure 1 The display system 2 also includes multiple light poles 22, on which multiple display units 21 are arranged; the visual training device also includes a mechanical system 4, on which multiple light poles 22 are arranged in a circle, and the mechanical system 4 is controlled by the user to rotate the light poles 22.

[0047] Specifically, in this embodiment, multiple display units 21 are sparsely distributed on multiple lamp posts 22. The number of display units 21 on each lamp post 22 can be the same. The multiple lamp posts 22 extend vertically and are arranged in a circumferential shape in the horizontal direction. The light emission direction of the display units 21 can be outside the circumference, in which case the user can stand outside the visual training device for training. The light emission direction of the display units 21 can also be inside the circumference, in which case the user can stand inside the visual training device for training. During training, the mechanical system 4 can control the lamp posts 22 to rotate, thereby arranging the display units 21 in a circumferential pattern. Based on the persistence of vision in the human eye, this can be equivalent to having lamp posts 22 set on the entire circumference.

[0048] Of course, in other implementations, display quality can be improved by setting a larger number of display units. Multiple lamp posts and multiple display units can be single-layered or multi-layered; multi-layered setups can achieve multi-focal surface display. Alternatively, the number of lamp posts and display units can be reduced by increasing the rotation speed, thereby lowering the cost of the vision training device.

[0049] Optionally, in the above embodiments, each display unit 2 may include a green vector pixel that emits green light, a blue vector pixel that emits blue light, and a red vector pixel that emits red light, thereby enabling full-color display.

[0050] Optionally, continue to refer to Figure 1 The mechanical system 4 includes a rotating subsystem 41 and a motor 42; the lamp post 22 is fixed to the rotating subsystem 41; the motor 6 is used to drive the rotating subsystem 41 to rotate.

[0051] Specifically, the rotating subsystem 41 can fix multiple lamp posts 22, so that the multiple lamp posts 22 are arranged in a circle. Furthermore, the rotating subsystem 41 is also connected to the motor 6, thereby controlling the rotation of the rotating subsystem 41. In addition, the motor 6 is electrically connected to the control system 1, and the control system 1 controls the rotational speed and direction of the motor 6, etc.

[0052] Optionally, continue to refer to Figure 1 The rotating subsystem 41 includes a rotating shaft 411 and a fixed frame 412. The rotating shaft 411 is located at the center of the fixed frame 412 and is fixedly connected to the fixed frame 412. The rotating shaft 411 is fixedly connected to a motor 42, which drives the rotating shaft 411 to rotate.

[0053] Specifically, the mounting bracket 412 can be a cylindrical structure, for example, with two bottom surfaces comprising two rings, and a rotating shaft 411 disposed at the center of the rings. The rings and the rotating shaft 411 are fixedly connected by a central crossbeam. One end of the lamp post 22 is fixed to the bottom ring, and the other end of the lamp post 22 is fixed to the top ring. In some embodiments, the lamp post 22 can be detachably connected to the mounting bracket 412.

[0054] The motor 42 can be fixed to the bottom of the rotating shaft 411. When the motor 42 rotates, it drives the rotating shaft 411 to rotate, which in turn drives the fixed frame 412 to rotate, ultimately enabling the display system 2 to achieve rotating display.

[0055] Optionally, continue to refer to Figure 1 The visual training device also includes a base 6, in which a motor 42 is housed. The base 6 is used to support the mechanical system 4.

[0056] Optionally, continue to refer to Figure 1 The visual training device also includes a protective cover 5, which is transparent. The rotating subsystem 41 is located inside the protective cover 5. The protective cover 5 is used to protect the rotating subsystem 41 and the display system 2, reduce the probability of corrosion or damage to the rotating subsystem 41 and the display system 2, and also has the function of reducing wind noise.

[0057] Optionally, continue to refer to Figure 1 The user identification and tracking system 3 is located at the end of the rotating shaft 411 away from the motor 42.

[0058] Specifically, in this embodiment, the user identification and tracking system 3 is positioned on top of the protective cover 5. The higher position of the user identification and tracking system 3 provides a wider field of view, enabling identification and location tracking over a larger area.

[0059] It should also be noted that the user identification and tracking system 3 only needs to have a 360-degree field of view that does not obstruct the user's view of the content displayed on the system; the specific location of the user identification and tracking system 3 is not limited to... Figure 1 As shown. In some other embodiments, it can also be disposed in other locations, such as on the lower outer edge of the protective cover, or on the outside of the training device.

[0060] Optionally, the user identification and tracking system 3 includes: a face recognition unit electrically connected to the control system 1 for identifying the user's facial information; and an eye tracking unit electrically connected to the control system 1 for tracking the position of the pupil of the human eye.

[0061] Specifically, both the facial recognition unit and the eye-tracking unit can be image acquisition units, achieving facial recognition and eye tracking through image processing. The facial recognition unit is used to identify the user's identity information through facial recognition.

[0062] Optionally, the vision training device also includes an input interface; the input interface is electrically connected to the control system and is used to input user information and training information.

[0063] Specifically, the input interface can be a touchscreen, keyboard, or voice input device. The input interface allows the user to input their training information (such as a prescription) into the control system, which can then display the corresponding imaging information to the user. Of course, the training information can also be adjusted at any time during training via the input interface. This training information may include the user's current interpupillary distance, the target interpupillary distance for restoring emmetropia, the adjustable interpupillary distance for training (i.e., d' mentioned above), and the training duration.

[0064] Optionally, the visual training device further includes a display module for training information and training status, which is electrically connected to the control system and is used to display training information and training status in real time.

[0065] Specifically, the training state display module can be an externally connected display, which can be a two-dimensional flat panel display or a three-dimensional stereo display, etc. The training state is used to represent the display of parameters tracked by the user in real time, such as the user's identity information, corresponding eye position information, and the gap with the training target, etc.

[0066] Alternatively, in other embodiments, the training information and training status can be displayed using multiple display units of the display system. When the training status is displayed using display units, a user identification and tracking system is needed for identity verification, so that the training status displayed by the display system is shown to users who do not need visual training, while the training information is shown to the corresponding users who need visual training.

[0067] Optionally, Figure 2 A circuit structure diagram of a control system provided for an embodiment of this utility model is shown below. Figure 2 The control system 1 includes a control module 11, a storage module 13, and a communication module 12; the storage module 13 is electrically connected to the control module 11, and the storage module 11 is used to store user information and training information; the communication module 12 is communicatively connected to the control module 11, the display system 2, and the user identification and tracking system 3; the control module 11 is used to control the display information of the display unit.

[0068] Specifically, the control module 11 is, for example, a display driver chip, which can control the display content of the display unit according to the user information and training information stored in the storage module 11. Of course, the control module 11 also needs to drive the corresponding display unit to display based on the pupil position information fed back by the user recognition and tracking system 3. The storage module 11 is, for example, a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk, or optical disk. The communication module 12 can be, for example, Bluetooth or Wi-Fi.

[0069] In summary, the workflow of a vision training device may include:

[0070] The system acquires training information, such as training prescriptions issued by doctors, and stores these prescriptions in the control system's storage module via an input interface.

[0071] The control system controls the rotation of the mechanical system, which in turn drives the rotation of the display system. Furthermore, the control system drives the display system to display content based on the information stored in the storage module.

[0072] The user identification and tracking system identifies user information and tracks the position of the user's eyes in real time, feeding this information back to the control system. The control system then controls the corresponding display unit based on the feedback information, thereby providing targeted training for the corresponding user.

[0073] In addition, in some implementations, the vision training device can guide the user's eyes to follow the displayed content, or guide the user to perform eye exercises based on the displayed content to relax the eye muscles, thereby achieving the purpose of preventing myopia.

[0074] In the above embodiments, the display system is taken as a cylindrical display. In other embodiments, it can also be a planar or curved display.

[0075] like Figure 3 As shown, Figure 3 This is a schematic diagram of another display system provided in an embodiment of the present invention. The display system 2 includes multiple rotating lamp disks 23, each of which has a display unit 21 disposed on its edge; the multiple rotating lamp disks 23 are arranged in an array; the control system is electrically connected to the rotating lamp disks 23 and is used to control the rotation of the rotating lamp disks.

[0076] Specifically, each rotating lamp disk 23 can be equipped with the same number of display units 21, and the rotating lamp disks 23 can be arranged in a planar or curved array. Adjacent rows of rotating lamp disks can be staggered to improve display resolution. As the rotating lamp disks 23 rotate, the display units 21, when moving to corresponding positions, can provide different beams of light to the user. This allows for stereoscopic display by providing beams of light at different angles to the user's eye through different display units.

[0077] It should be noted that in some other embodiments, the vision training device can also form an image point by simultaneously driving multiple beams of light from different positions into the pupil. The imaging distance can be controlled by controlling the position of the focal point of these beams. The imaging distance can be brought closer or farther according to the user's degree of myopia. In other words, the vision training device can also assist myopic users in eye muscle training and can serve as a display screen to relax the eyes and relieve eye fatigue.

[0078] It should be understood that the various forms of the process shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this utility model can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this utility model can be achieved, and this is not limited herein.

[0079] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A visual training device, characterized in that, The visual training device includes: Control systems, display systems, and user identification and tracking systems; The display system includes multiple display units, and each display unit includes vector pixels; The control system is electrically connected to the display system and is used to control the display information of the display unit; The user identification and tracking system is electrically connected to the control system, and the user identification and tracking system is used to identify the user's identity information and track the user's location.

2. The visual training device according to claim 1, characterized in that, The display system also includes multiple lamp posts, on which multiple display units are arranged; The visual training device also includes a mechanical system, on which the plurality of lamp posts are arranged in a circle, and the mechanical system is used to control the rotation of the lamp posts.

3. The visual training device according to claim 2, characterized in that, The mechanical system includes a rotary subsystem and an electric motor; The lamp post is fixed to the rotating subsystem; the motor is used to drive the rotating subsystem to rotate.

4. The visual training device according to claim 3, characterized in that, The rotating subsystem includes a rotating shaft and a fixed frame. The rotating shaft is located at the center of the fixed frame and is fixedly connected to the fixed frame. The rotating shaft is fixedly connected to the motor, which drives the rotating shaft to rotate.

5. The visual training device according to claim 4, characterized in that, The user identification and tracking system is located at the end of the rotating shaft away from the motor.

6. The visual training device according to claim 1, characterized in that, The display system includes multiple rotating light panels, and each rotating light panel is provided with the display unit; Multiple rotating lamp disks are arranged in an array; The control system is electrically connected to the rotating lamp panel, and the control system is used to control the rotation of the rotating lamp panel.

7. The visual training device according to claim 1, characterized in that, The user identification and tracking system includes: A facial recognition unit, electrically connected to the control system, is used to recognize the user's facial information; The human eye tracking unit is electrically connected to the control system and is used to track the position of the human eye's pupil.

8. The visual training device according to claim 1, characterized in that, The visual training device also includes an input interface; The input interface is electrically connected to the control system, and the input interface is used to input user information and training information.

9. The visual training device according to claim 1, characterized in that, The display system of the visual training device further includes a display module, which is electrically connected to the control system and is used to display training information and training status in real time; and / or, The multiple display units of the display system are also used to display training information and training status in real time.

10. The visual training device according to claim 1, characterized in that, The control system includes a control module, a storage module, and a communication module; The storage module is electrically connected to the control module, and the storage module is used to store display information; The communication module is communicatively connected to the control module, the display system, and the user identification and tracking system; The control module is used to control the display information of the display unit.

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