VR visual training instrument and calibration method thereof

Abstract

The application relates to the technical field of vision correction, in particular to a VR vision training instrument and a calibration method thereof, which is characterized in that the method comprises the following steps: acquiring vision data of a user; wearing a corresponding VR vision training instrument on the head to perform adaptability adjustment; playing corresponding animations or pictures through a display screen in the VR vision training instrument; slowly adjusting a focal length adjusting button to gradually adapt, after adjusting to each stage, stabilizing the focal length while changing the position of a target image, acquiring a motion track of a fixation point through feedback of an eye tracking system, and judging whether the motion track coincides with the display position of the target image; the application has the beneficial effect that the best effect of clear viewing can be adjusted according to the vision condition, through ghosting calibration, left and right lens adjustment is performed to adapt to the pupil distance of the two eyes, so that the fatigue and discomfort of the user are reduced, and more real and effective visual stimulation is provided to help the user better train and improve the vision.

Description

Technical Field

[0001] This invention relates to the field of vision correction technology, and more specifically to a VR vision training device and its calibration method. Background Technology

[0002] With the application of VR (Virtual Reality) technology, its use in vision correction for minors has been explored. Through continuous exploration and image adjustment, the distance between the eye's focal length and the eye can be continuously trained and adjusted. Combined with VR technology, this can continuously exercise the corresponding eye muscles, thus training and correcting vision. This is similar to a pupillary distance adjustment device and vision training equipment with patent number CN202221863623.8. This device can adjust the pupillary distance and calibrate the training light generated by the light source module to improve the vision training effect. However, this device cannot adjust to achieve the best effect of clear viewing according to the user's vision, cannot adjust the lenses left and right to adapt to the pupillary distance through ghosting calibration, and cannot reduce user fatigue and discomfort, nor provide more realistic and effective visual stimulation to help users better train and improve their vision. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to provide a VR vision training device and its calibration method. The calibration method includes adjusting the device to achieve the best effect of clear viewing according to the vision condition, adjusting the lenses left and right to adapt to the interpupillary distance of the two eyes through ghosting calibration, so as to reduce the user's fatigue and discomfort, and provide more realistic and effective visual stimulation to help the user better train and improve vision.

[0004] Therefore, the technical solution adopted is a VR vision training device and its calibration method according to the present invention, which includes the following steps:

[0005] S1: Obtain the user's vision data; wear a corresponding VR vision training device on the top of the head for adaptive adjustments;

[0006] S2: Play the corresponding animation or picture through the display screen in the VR vision training device; slowly adjust the focus adjustment button to gradually adapt to each stage. After adjusting to each stage, stabilize the focus while changing the position of the target image. Obtain the movement trajectory of the gaze point through the feedback of the eye tracking system, and determine whether the movement trajectory coincides with the display position of the target image. Continue to adjust the focus until the feedback of the eye tracking system shows complete coincidence, and complete the calibration of the vision strength.

[0007] S3: Similar to S2, the user's interpupillary distance is determined by adjusting the interpupillary distance using the interpupillary distance adjustment button;

[0008] S4: Display images on the screen and adjust the focus of the VR vision trainer using the focus adjustment button according to the user's vision data so that the image can be clearly imaged on the user's retina; display complete patterns of different sizes and styles on the screen, and collect data by tracking the viewpoint of eye movement according to the constantly changing simulated viewing distance;

[0009] S5: Tracks the viewpoint of the VR vision training device's eye movements, while changing the size of the target image and simulating the near and far movement of the target image to train the user's vision; through constantly changing and enlarging patterns, in conjunction with the stereoscopic sensing device corresponding to the VR vision training device, it makes the vision trainer more flexible and relaxed in mind and body.

[0010] Preferably, it includes a vision trainer, one end of which is hinged to a forehead support frame, the forehead support frame is connected to a back head support frame via an elastic band, and two earmuffs for sound generation are respectively provided at both ends of the forehead support frame; vision training software is installed inside the vision trainer; and a flexible light shield is fixed to the inner end of the vision trainer.

[0011] The back of the head support is equipped with an adjusting gear that rotates inside. The tension gauge of the forehead support is inserted into the back of the head support and meshes with the two ends of the adjusting gear.

[0012] The back of the head support is equipped with an adjusting gear that rotates inside. The tension gauge of the forehead support is inserted into the back of the head support and meshes with the two ends of the adjusting gear.

[0013] Preferably, the vision trainer has a power button, an N button, a return button and an confirmation button on one side, and a focus adjustment button, an earphone jack, a TF card, a USB port and a charging indicator light on the other side. The user end of the vision trainer has symmetrical vision observation tubes inside, a display screen inside the vision observation tubes, and an interpupillary distance adjustment button inside the vision observation tubes.

[0014] Preferably, the power button, N button, return button, confirmation button, focus adjustment button, headphone jack, TF card, USB, charging indicator light, and interpupillary distance adjustment button are all connected to the circuit board via electrical connection lines. The circuit board is fixed inside the vision trainer and is connected to the controller via wires.

[0015] Preferably, the vision trainer has a fixed support plate inside, and both the upper and lower ends of the support plate are fixed with horizontal adjustment racks, the teeth on the horizontal adjustment racks being arc-shaped; the horizontal adjustment racks are symmetrically arranged, and the two symmetrical horizontal adjustment racks mesh and clamp the vision observation tube, and a display screen is provided inside the vision observation tube; a vision adjustment tube is rotatably arranged on the inner wall of the vision observation tube, and the interpupillary distance adjustment button on the vision adjustment tube protrudes from the surface of the vision observation tube.

[0016] Preferably, the eye-tracking system is installed inside the vision observation tube.

[0017] Preferably, the lower end of the vision observation tube is fixed with a focus adjustment button, which slides in an arc shape inside the vision training device. The inner wall of the vision adjustment tube is evenly provided with multiple inclined grooves, and the vision observation tube is evenly provided with restraining grooves corresponding to the multiple inclined grooves.

[0018] Preferably, the inclined sliding limiter slide in the inclined groove is simultaneously restrained and slid within the restraint groove of the vision observation tube, and multiple limiter slides are evenly fixed around the deformable condenser lens; the deformable condenser lens is located at the front end of the display screen.

[0019] Preferably, both the surface of the vision training device and the surface of the vision observation tube are provided with corresponding scales.

[0020] Preferably, the stereo sensing device includes a fixed base, a tilting operating table, and an assembly and adjustment seat. The upper end of the fixed base is tilted and driven to have a tilting operating table, and the assembly and adjustment seat is inserted and fixed on the tilting operating table.

[0021] The fixed base includes a fixed chassis. The upper end of the fixed chassis is provided with a limiting rotating groove. A central ball groove seat is fixed at the center of the upper end of the fixed chassis. Multiple side arc-shaped slots are evenly fixed around the fixed chassis. A driving limiting gear ring is provided in the limiting rotating groove for limiting rotation. The driving limiting gear ring is connected to the transmission gear of the angle rotation driver through meshing. The angle rotation driver is fixed on the fixed chassis through a motor seat. An electric telescopic rod is fixed to the upper end of the driving limiting gear ring through a base. The telescopic shaft of the electric telescopic rod is hinged to the upper hinged arc-shaped slide.

[0022] The tilting operating table includes a tilting operating plate. A central ball seat is fixed at the center of the lower end of the tilting operating plate. The central ball seat rotates in the ball groove of the central ball seat due to its spherical shape. Multiple side arc-shaped sliders are evenly arranged around the tilting operating plate. The side arc-shaped sliders are inserted into the side arc-shaped slots in an arc shape. A rotating groove is provided at the lower end of the tilting operating plate. The upper end of the upper hinged arc-shaped slide block is limited to rotate in the rotating groove.

[0023] The assembled adjustable seat includes a chair center shaft, which is inserted into a fixed chassis via a spline shaft. The chair center shaft is fixed to the fixed chassis via bolts on a screw fixing platform. A seat plate is fixed at the center of the upper end of the chair center shaft. A rear arc-shaped support platform for supporting the body is provided at the rear end of the seat plate. Armrest support bushings are fixed at both ends of the seat plate. The longitudinal operation armrest slides longitudinally within the armrest support bushing. A side spring tooth is limited by a side spring tooth, which is engaged with a spring tension rack by spring force. The spring tension rack is engaged with a fixed rack by a tension spring. The fixed rack is fixed to the side end of the inner wall of the armrest support bushing. A tension spring is provided between the spring tension rack and the chair center shaft. An extension plate is slidably extended on the upper limit of the longitudinal operation armrest, and a 3DF handle is fastened to the extension plate.

[0024] Multiple operation buttons are evenly arranged on the fixed base. The multiple operation buttons, 3DF handle, electric telescopic rod and angle rotation driver are all connected to the controller via electrical signals.

[0025] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in this application.

[0026] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0027] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0028] Figure 1 This is a schematic flowchart illustrating the use of the calibration method of the present invention;

[0029] Figure 2 This is a schematic diagram of the overall structure of the present invention in a first orientation.

[0030] Figure 3 This is a schematic diagram of the overall second-direction structure of the present invention;

[0031] Figure 4 This is a schematic diagram of the connection structure of the vision training device of the present invention. Figure 1 ;

[0032] Figure 5 This is a schematic diagram of the vision training device of the present invention. Figure 2 ;

[0033] Figure 6 This is a schematic diagram of the vision training device of the present invention. Figure 3;

[0034] Figure 7 This is a schematic diagram of the internal structure of the vision training device of the present invention. Figure 1 ;

[0035] Figure 8 This is a schematic diagram of the internal structure of the vision training device of the present invention. Figure 2 ;

[0036] Figure 9 This is a schematic diagram of the internal structure of the vision observation tube of the present invention. Figure 1 ;

[0037] Figure 10 This is a schematic diagram of the internal structure of the vision observation tube of the present invention. Figure 2

[0038] Figure 11 This is a schematic diagram of the structure of the deformable condenser lens of the present invention;

[0039] Figure 12 This is a schematic diagram of the structure of the stereoscopic sensing device of the present invention. Figure 1 ;

[0040] Figure 13 This is a schematic diagram of the structure of the stereoscopic sensing device of the present invention. Figure 2 ;

[0041] Figure 14 This is a schematic diagram of the structure of the fixed base of the present invention. Figure 1 ;

[0042] Figure 15 This is a schematic diagram of the structure of the fixed base of the present invention. Figure 2 ;

[0043] Figure 16 This is a schematic diagram of the tilting operating table of the present invention;

[0044] Figure 17 This is a schematic diagram of the assembly and adjustment of the seat fixing structure of the present invention;

[0045] Figure 18 This is a schematic diagram of the assembly and adjustment seat structure of the present invention. Figure 1 ;

[0046] Figure 19 This is a schematic diagram of the assembly and adjustment seat structure of the present invention. Figure 2

[0047] Figure 20 This is a schematic diagram of the structure of the 3DF handle of the present invention;

[0048] Figure 21 This is the physical example of the VR vision training device of the present invention. Figure 1 ;

[0049] Figure 22 This is the physical example of the VR vision training device of the present invention. Figure 2 .

[0050] In the diagram: 1. Backrest support; 2. Forehead support; 3. Two earmuffs; 4. Vision trainer; 5. Power button; 6. N button; 7. Return button; 8. Confirm button; 9. Interpupillary distance adjustment button; 10. Display screen; 11. Focus adjustment button; 12. Headphone jack; 13. TF card; 14. USB; 15. Charging light; 16. Circuit board; 17. Support partition; 18. Horizontal adjustment rack; 19. Vision observation tube; 21. Vision adjustment tube; 22. Tilt slide; 23. Deformation condenser lens; 24. Limiting slide; 25. Adjustment gear; 26. Fixed base; 27. Tilt operating table; Assembly and adjustment. Seat 28; Fixed chassis 29; Limiting rotating groove 30; Center ball groove seat 31; Multiple side arc-shaped slots 32; Drive limiting gear ring 33; Angle rotation driver 34; Electric telescopic rod 35; Upper hinged arc-shaped slide 36; Inclined operating panel 37; Center ball seat 38; Side arc-shaped slider 39; Chair central shaft 40; Screw fixing platform 41; Seat plate 42; Rear seat arc-shaped support platform 43; Armrest support bushing 44; Operating armrest 45; Side spring top tooth 46; Spring tightening rack 47; Fixed rack 48; Tightening spring 49; 3DF handle 50. Detailed Implementation

[0051] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0052] In the description of this application, it should be understood that the terms "middle," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0053] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0054] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Specific implementation method one:

[0056] like Figure 1 — Figure 20 As shown, a VR vision training device and its calibration method include the following steps.

[0057] S1: Obtain the user's vision data; wear a corresponding VR vision training device on the top of the head for adaptive adjustments;

[0058] S2: Play the corresponding animation or picture through the display screen 10 in the VR vision training device; slowly adjust the focus adjustment button 11 to gradually adapt to each stage. After adjusting to each stage, stabilize the focus and change the position of the target image. Obtain the motion trajectory of the gaze point through the feedback of the eye tracking system, determine whether the motion trajectory coincides with the display position of the target image, and continue to adjust the focus until the feedback of the eye tracking system shows complete coincidence, thus completing the calibration of the visual acuity.

[0059] S3: Similar to S2, the user's interpupillary distance is determined by adjusting the interpupillary distance using button 9;

[0060] S4: Display an image on the display screen 10, and adjust the focus of the VR vision training device according to the user's vision data via the focus adjustment button 11 so that the image can be clearly imaged on the user's retina; display complete patterns of different sizes and styles on the display screen 10, and collect data by tracking the viewpoint of eye movement according to the constantly changing simulated viewing distance;

[0061] S5: Tracks the viewpoint of the VR vision training device's eye movements, while simultaneously changing the size of the target image and simulating its near and far movement to train the user's vision; through constantly changing and expanding patterns, in conjunction with the corresponding stereoscopic sensing device of the VR vision training device, it makes the user's mind and body more flexible and relaxed.

[0062] The working principle and beneficial effects of this embodiment are as follows: A VR vision training device and its calibration method are used. This calibration method includes initializing the device's basic parameters, such as focal length, interpupillary distance, and field of view, to ensure correct image alignment. It can be adjusted to achieve the best viewing effect with clear vision based on the user's visual condition. Through ghosting calibration, the lenses are adjusted left and right to adapt to the interpupillary distance of both eyes, reducing user fatigue and discomfort, and providing more realistic and effective visual stimulation to help users improve their vision. The internal interpupillary distance adjustment mechanism uses a multi-position toggle adjustment of the lens barrel, which can precisely control the amount of interpupillary distance adjustment, ensuring accuracy and offering advantages such as convenience, speed, and accuracy.

[0063] By combining a VR vision training device with a stereoscopic sensing device, and using corresponding 3D spatial training videos or images, users can control the effects displayed on the VR vision training device through the stereoscopic sensing device. Combined with the characteristics of the motion trajectory of the stereoscopic sensing device, the spatial effect is effectively enhanced, making users feel more realistic and relaxed, and improving the overall strength training effect. At the same time, to avoid wearing it for too long, a corresponding temporary control chair can be used to avoid fatigue caused by prolonged training. Specific Implementation Method Two:

[0065] like Figure 2 — Figure 11 As shown, a VR vision training device and its calibration method include a vision training device 4, one end of which is connected to a forehead support frame 2 via a hinge, the forehead support frame 2 is connected to a back head support frame 1 via an elastic band, and two earmuffs 3 are respectively provided at both ends of the forehead support frame 2; vision training software is installed inside the vision training device 4; and a flexible light shield is fixed to the inner end of the vision training device 4.

[0066] The back of the head support 1 is rotatably equipped with an adjusting gear 25, and the tension tape of the forehead support 2 is inserted into the back of the head support 1 and meshes with the two ends of the adjusting gear 25.

[0067] The working principle and beneficial effects of this embodiment are as follows: By placing the forehead support frame 2 on the user's forehead and adjusting the elastic band on the back head support 1, the vision trainer 4 can be supported on the nasal bone of the face for support. Simultaneously, the two earmuffs 3 are adjusted and fastened to the ears, thus achieving a comfortable use tailored to different users. The flexible light shield on the vision trainer 4 creates a closed environment for the eyes, preventing interference from other light sources. The flexible light shield is made of silicone material for easy cleaning. Powering on the vision trainer 4 and using the playback effect provides hardware support for VR training. The vision trainer 4 has a rear-mounted battery and a V30 balance with the main unit. The headband tightness is adjusted using a rear knob. The vision trainer 4 is integrated into the Bright Eyes service management product: registration / location management. Application: Powering on the Bright Eyes APP determines visual clarity. The Bright Eyes service APP can play vision training resources online, stored on a server. The vision trainer 4 requires the installation of third-party resources and screen mirroring / casting software.

[0068] After wearing the device, the tension band of the forehead support frame 2 can be tightened or loosened simultaneously by rotating the adjustment gear 25, which facilitates fixing and disassembly, and can be used for different head sizes. Specific implementation method three:

[0070] like Figure 2 — Figure 11 As shown, a VR vision training device and its calibration method are disclosed. One side of the vision training device 4 is equipped with a power button 5, an N button 6, a return button 7, and an confirmation button 8. The other side of the vision training device 4 is equipped with a focus adjustment button 11, a headphone jack 12, a TF card 13, a USB 14, and a charging indicator light 15. The user end of the vision training device 4 contains symmetrical vision observation tubes 19, each containing a display screen 10 and an interpupillary distance adjustment button 9. The power button 5, N button 6, return button 7, confirmation button 8, focus adjustment button 11, headphone jack 12, TF card 13, USB 14, charging indicator light 15, and interpupillary distance adjustment button 9 are all connected to a circuit board 16 via electrical connection lines. The circuit board 16 is fixed inside the vision training device 4 and is connected to a controller via wires.

[0071] The working principle and beneficial effects of this embodiment are as follows: the power button 5, N button 6, return button 7, confirmation button 8, focus adjustment button 11, headphone jack 12, TF card 13, USB 14 and charging indicator light 15 all transmit signals to the circuit board 16 through the corresponding different sensors inside the vision trainer 4, and then the circuit board 16 connects to the controller to transmit signals to the outside and inside the video, thereby facilitating the overall control of the VR vision trainer. Specific implementation method four:

[0073] like Figure 2 — Figure 11 As shown, a VR vision training device and its calibration method are disclosed. The vision training device 4 has a fixed support plate 17 inside. Both the upper and lower ends of the support plate 17 are fixed with horizontal adjustment racks 18, and the teeth on the horizontal adjustment racks 18 are arc-shaped. The horizontal adjustment racks 18 are symmetrically arranged, and the two symmetrical horizontal adjustment racks 18 mesh and clamp the vision observation tube 19. The vision observation tube 19 is provided with a display screen 10. The inner wall of the vision observation tube 19 is rotatably provided with a vision adjustment tube 21, and the interpupillary distance adjustment button 9 on the vision adjustment tube 21 protrudes from the surface of the vision observation tube 19. The eye tracking system is provided inside the vision observation tube 19.

[0074] The working principle and beneficial effects of this embodiment are as follows: the support partition 17 facilitates the support and fixation of the circuit board 16 and some components within the vision trainer 4; the fixed multiple lateral adjustment racks 18 facilitate the sliding of the vision observation tube 19; by pushing the interpupillary distance adjustment button 9 to move left and right within the device, the vision observation tube 19 can be easily moved laterally within the vision trainer 4, facilitating the adjustment of the user's interpupillary distance; an eye-tracking system is installed within the vision observation tube 19, which uses sensors to detect and track eye movements. These sensors can be infrared, cameras, or other types of sensors. By capturing the position and movement of the eye in space, the eye-tracking system can provide information about the user's gaze point and gaze pattern, which is then fed back to the display screen 10. The image is controlled and adjusted using the 3DF handle 50 to determine the final symmetrical interpupillary distance that makes the images coincide. Specific implementation method five:

[0076] like Figure 2 — Figure 11 As shown, a VR vision training device and its calibration method are disclosed. The lower end of the vision observation tube 19 is fixed with a focus adjustment button 11. The focus adjustment button 11 slides in an arc shape inside the vision training device 4. The inner wall of the vision adjustment tube 21 is uniformly provided with multiple inclined slide grooves 22. The vision observation tube 19 is uniformly provided with restraining slide grooves corresponding to the multiple inclined slide grooves 22. The inclined slide grooves 22 contain inclined limiting sliding limit slides 24, which simultaneously restrain slides within the restraining slide grooves of the vision observation tube 19. The multiple limiting slides 24 are uniformly fixed around the deformation condenser lens 23. The deformation condenser lens 23 is located at the front end of the display screen 10.

[0077] The working principle and beneficial effects of this embodiment are as follows: After adjusting the interpupillary distance by adjusting the displacement vision observation tube 19 using the interpupillary distance adjustment button 9, the corresponding vision effect is adjusted after being determined by the image combined with the internal software and the eye tracking system. By adjusting the rotation focus adjustment button 11 on the vision observation tube 19, the vision adjustment tube 21 is rotated inside the vision observation tube 19. The rotating vision observation tube 19 is pushed by the inclined slope of multiple internal inclined slides 22, which causes multiple limiting slides 24 to slide inward or outward within the restraining slides inside the vision observation tube 19. This causes the multiple limiting slides 24 to drive the deformation condenser lens 23 to move inward or outward at the front end of the display screen 10 inside the vision adjustment tube 21, thereby realizing the adjustment of the vision focus and thus realizing the confirmation and adjustment of vision. Specific implementation method six:

[0079] like Figure 2 — Figure 11 As shown, a VR vision training device and its calibration method are disclosed, wherein the surface of the vision training device 4 and the surface of the vision observation tube 19 are both provided with corresponding scales.

[0080] The working principle and beneficial effects of this embodiment are as follows: by using a pre-set scale, the corresponding pupillary distance and degree of myopia can be roughly estimated. After determining the approximate range, fine-tuning can be carried out step by step, which helps to improve the adjustment and calibration speed. Specific implementation method seven:

[0082] like Figure 12 — Figure 20 As shown, a VR vision training device and its calibration method are disclosed. The stereo sensing device includes a fixed base 26, a tilting operating table 27 and an assembly and adjustment seat 28. The upper end of the fixed base 26 is tilted and driven to provide the tilting operating table 27, and the assembly and adjustment seat 28 is inserted and fixed on the tilting operating table 27.

[0083] The fixed base 26 includes a fixed chassis 29. The upper end of the fixed chassis 29 is provided with a limiting rotating groove 30. A central ball groove seat 31 is fixed at the center of the upper end of the fixed chassis 29. Multiple side arc-shaped slots 32 are evenly fixed around the fixed chassis 29. A driving limiting gear ring 33 is provided in the limiting rotating groove 30 for limiting rotation. The driving limiting gear ring 33 is connected to the transmission gear of the angle rotation driver 34 through meshing. The angle rotation driver 34 is fixed on the fixed chassis 29 through a motor seat. The upper end of the driving limiting gear ring 33 is fixed to an electric telescopic rod 35 through a base. The telescopic shaft of the electric telescopic rod 35 is hinged to the upper hinged arc-shaped slide 36.

[0084] The tilting operating table 27 includes a tilting operating plate 37. A central ball seat 38 is fixed at the center of the lower end of the tilting operating plate 37. The central ball seat 38 rotates in the ball groove of the central ball groove seat 31 due to its spherical shape. A plurality of side arc-shaped sliders 39 are evenly arranged around the tilting operating plate 37. The side arc-shaped sliders 39 are inserted into the side arc-shaped slots 32 in an arc shape. A rotating groove is provided at the lower end of the tilting operating plate 37. The upper end of the upper hinged arc-shaped slide block 36 is limited to rotate in the rotating groove.

[0085] The assembled adjustable seat 28 includes a chair center shaft 40, which is inserted into a fixed base 29 via a splined shaft. The chair center shaft 40 is fixed to the fixed base 29 by bolts on a screw fixing platform 41. A seat plate 42 is fixed at the center of the upper end of the chair center shaft 40. A rear arc-shaped support platform 43 for supporting the body is provided at the rear end of the seat plate 42. Armrest support bushings 44 are fixed at both ends of the seat plate 42. The longitudinally operating armrests 45 slide longitudinally within the armrest support bushings 44. The side end of the operating armrest 45 is limited by a side spring tooth 46, which is engaged with the spring tension rack 47 by the spring force. The spring tension rack 47 is engaged with the fixed rack 48 by the tension spring 49. The fixed rack 48 is fixed to the side end of the inner wall of the armrest support bushing 44. A tension spring 49 is provided between the spring tension rack 47 and the central axis 40 of the chair. The longitudinal operating armrest 45 is limited by an extension plate, and a 3DF handle 50 is fastened to the extension plate.

[0086] Multiple operation buttons are evenly arranged on the fixed base 26. The multiple operation buttons, 3DF handle 50, electric telescopic rod 35 and angle rotation driver 34 are all connected to the controller via electrical signals.

[0087] The working principle and beneficial effects of this embodiment are as follows: By fixing the fixed base 29 inside the fixed base 26, the placement position of the stereoscopic sensing device is determined. Multiple operation buttons, the 3DF handle 50, the electric telescopic rod 35, and the angle rotation driver 34 are all connected to the controller via electrical signals, and then used in conjunction with the VR vision training device. In conjunction with the stereoscopic 3D video and training video within the VR vision training device, the angle rotation driver 34 is driven to rotate. Through gear meshing, the limiting gear ring 33 drives the electric telescopic rod 35 and the upper hinged arc-shaped slide 36 to rotate at an angle within the limiting rotation groove 30 and the tilting operation plate 37. The controller analyzes... The system automatically determines the desired tilt direction and then drives the electric telescopic rod 35 to lift or pull down the upper hinged arc-shaped slide 36 to tilt the control plate 37. This, combined with the rotation of the central ball seat 38 within the central ball groove seat 31, avoids interference and effectively improves operating efficiency. This allows the tilt control plate 37 to tilt at an angle, which, in conjunction with the stereoscopic 3D video and training video within the VR vision training device, creates a more realistic feeling when standing on the tilt control plate 37, thereby enhancing eye focus and effectively improving eye vision training. The multiple operation buttons on the tilt control plate 31 facilitate angle operation in special usage environments.

[0088] When prolonged exercise is required, to avoid fatigue from not operating the 3DF handle 50, the chair center shaft 40 of the assembled and adjustable seat 28 can be inserted into the tilting operation plate 37. The seat 28 can be fixed by rotating the screw fixing platform 41, allowing the user to sit on the seat plate 42 and lean against the rear seat arc support platform 43. Adjusting and pressing the side spring teeth 46 at the side end of the operating armrest 45 causes the side spring teeth 46 to simultaneously pull the operating armrest 45, releasing the pressure on the spring-tightening rack 47. The spring-tightening rack 47 is then reset through multiple tightening springs 49, thereby engaging the fixed rack 48 inside the armrest support bushing 44, thus completing the height adjustment of the operating armrest 45. The design incorporates features such as joints and fixation to ensure a better fit for the user, allowing the 3DF handle 50 to be rested on the operating armrest 45 for operation, preventing fatigue from prolonged use. Furthermore, by combining the VR vision training device with a stereoscopic sensing device, and using corresponding 3D spatial training videos or images, the user can control the VR vision training device's display through the stereoscopic sensing device. The motion trajectory characteristics of the stereoscopic sensing device effectively enhance the spatial effect, making the user feel more realistic and relaxed, thus improving the overall strength training effect. Simultaneously, to avoid prolonged wear, a corresponding temporary control chair can be used to prevent fatigue from excessive training.

[0089] The above description is not intended to limit the present invention, nor is the present invention limited to the examples given above. Any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of the present invention are also within the protection scope of the present invention.

Claims

1. A VR vision training device, characterized in that: The VR vision training device includes a vision trainer (4), one end of which is connected to a forehead support frame (2) via a hinge, and the forehead support frame (2) is connected to a back head support frame (1) via an elastic band. Two earmuffs (3) are respectively provided at both ends of the forehead support frame (2). Vision training software is installed inside the vision trainer (4). A flexible light shield is fixed to the inner end of the vision trainer (4). The back of the head support (1) is rotatably equipped with an adjusting gear (25), and the tension tape of the forehead support (2) is inserted into the back of the head support (1) and meshes with the two ends of the adjusting gear (25). The vision trainer (4) is provided with a focus adjustment button (11) on one side. The vision trainer (4) is provided with a symmetrical vision observation tube (19) inside the user end. The vision observation tube (19) is provided with a display screen (10) and the vision observation tube (19) is provided with an interpupillary distance adjustment button (9). The VR vision training device calibration method includes the following steps; S1: Obtain the user's vision data; wear the VR vision training device and make adaptation adjustments on the top of the head; S2: Play the corresponding animation or picture through the display screen (10) in the VR vision training device; slowly adjust the focus adjustment button (11), and after adjusting to each stage, stabilize the focus while changing the position of the target image. Obtain the motion trajectory of the gaze point through the feedback of the eye tracking system, determine whether the motion trajectory coincides with the display position of the target image, continue to adjust the focus until the feedback of the eye tracking system is completely coincident, and complete the calibration of the vision strength. S3: Similar to S2, the user's interpupillary distance is determined by adjusting the interpupillary distance using the interpupillary distance adjustment button (9); S4: Display an image on the display screen (10) and adjust the focus of the VR vision training device by adjusting the focus button (11) according to the user's vision data so that the image can be clearly imaged on the user's retina; display complete patterns of different sizes and styles on the display screen (10), and collect data by tracking the viewpoint of eye movement according to the constantly changing simulated observation distance; S5: Tracks the viewpoint of the VR vision training device's eye movements, while changing the size of the target image to simulate the near and far movement of the target image to train the user's vision; through constantly changing and enlarging patterns, it works in conjunction with a stereoscopic sensing device corresponding to the VR vision training device.

2. The VR vision training device according to claim 1, characterized in that: The vision training device (4) is fixed with a support partition (17). Both the upper and lower ends of the support partition (17) are fixed with horizontal adjustment racks (18). The teeth on the horizontal adjustment racks (18) are arc-shaped. The horizontal adjustment racks (18) are symmetrically arranged. The two symmetrical horizontal adjustment racks (18) mesh and clamp the vision observation tube (19). The vision observation tube (19) is equipped with a display screen (10). The inner wall of the vision observation tube (19) is rotatably equipped with a vision adjustment tube (21). The pupil distance adjustment button (9) on the vision adjustment tube (21) protrudes from the surface of the vision observation tube (19). The multiple fixed horizontal adjustment racks (18) facilitate the sliding of the vision observation tube (19).

3. A VR vision training device according to claim 2, characterized in that: The lower end of the vision observation tube (19) is fixed with a focus adjustment button (11). The focus adjustment button (11) slides in an arc shape inside the vision trainer (4). The inner wall of the vision adjustment tube (21) is evenly provided with multiple inclined grooves (22). The vision observation tube (19) is uniformly provided with restraining grooves corresponding to multiple inclined grooves (22); The inclined sliding limiter (24) is inclined in the inclined slide groove (22), and the limiter (24) is simultaneously restrained in the restraint slide groove of the vision observation tube (19). Multiple limiters (24) are evenly fixed around the deformable condenser lens (23); the deformable condenser lens (23) is set at the front end of the display screen (10). By adjusting the rotating focus adjustment button (11) on the vision observation tube (19), the vision adjustment tube (21) is rotated inside the vision observation tube (19). The rotating vision observation tube (19) is pushed by the inclined slope of the multiple inclined slides (22) inside, thereby causing the multiple limiting slides (24) to slide inward or outward in the restraining slides inside the vision observation tube (19). This causes the multiple limiting slides (24) to drive the deformation condenser lens (23) to move inward or outward at the front end of the display screen (10) inside the vision adjustment tube (21), thereby achieving the adjustment of the vision focus.

4. A VR vision training device according to claim 1, characterized in that: The stereo sensing device includes a fixed base (26), a tilting operating table (27) and an assembly and adjustment seat (28). The upper end of the fixed base (26) is tilted and driven to have the tilting operating table (27) installed. The assembly and adjustment seat (28) is inserted and fixed on the tilting operating table (27). The fixed base (26) includes a fixed chassis (29). The upper end of the fixed chassis (29) is provided with a limiting rotating groove (30). A central ball groove seat (31) is fixed at the center of the upper end of the fixed chassis (29). Multiple side arc-shaped slots (32) are evenly fixed around the fixed chassis (29). A driving limiting gear ring (33) is provided in the limiting rotating groove (30) for limiting rotation. The driving limiting gear ring (33) is connected to the transmission gear of the angle rotation driver (34) through meshing. The angle rotation driver (34) is fixed on the fixed chassis (29) through a motor seat. The upper end of the driving limiting gear ring (33) is fixed to an electric telescopic rod (35) through a base. The telescopic shaft of the electric telescopic rod (35) is hinged to the upper hinged arc-shaped slide (36). The tilting operating table (27) includes a tilting operating plate (37). A central ball seat (38) is fixed at the center of the lower end of the tilting operating plate (37). The central ball seat (38) rotates in the ball groove of the central ball groove seat (31) in combination with the spherical characteristics. Multiple side arc-shaped sliders (39) are evenly arranged around the tilting operating plate (37). The side arc-shaped sliders (39) are arc-shaped and inserted into the side arc-shaped slots (32). A rotating groove is provided at the lower end of the tilting operating plate (37). The upper end of the upper hinged arc-shaped slide (36) is limited to rotate in the rotating groove. The assembled adjustable seat (28) includes a chair center shaft (40), which is inserted into the tilting operation plate (37) via a spline shaft. The chair center shaft (40) is fixed to the tilting operation plate (37) by bolts on the screw fixing platform (41). A center fixed seat plate (42) is provided at the upper end of the chair center shaft (40). A rear seat arc support platform (43) for supporting the body is provided at the rear end of the seat plate (42). Armrest support bushings (44) are fixed at both ends of the seat plate (42). The longitudinal operating armrest (45) slides longitudinally on the armrest support bushing (44). Inside, the side end of the longitudinal operating armrest (45) is limited by a side spring tooth (46), which is engaged with the spring tension rack (47) by the spring force. The spring tension rack (47) is engaged with the fixed rack (48) by the tension spring (49). The fixed rack (48) is fixed to the side end of the inner wall of the armrest support bushing (44). A tension spring (49) is provided between the spring tension rack (47) and the chair center axis (40). The longitudinal operating armrest (45) is limited by an extension plate, and a 3DF handle (50) is fastened to the extension plate.

5. A VR vision training device according to claim 4, characterized in that: Multiple operation buttons are evenly arranged on the fixed base (26). The multiple operation buttons, 3DF handle (50), electric telescopic rod (35) and angle rotation driver (34) are all connected to the controller of the vision trainer (4) via electrical signals.

Images