Turnover mirror for visual training
The flip-up lens, with its movable frame design, achieves precise alignment between the lens's optical axis and the pupil, solving the problem of inaccurate optical axis alignment in existing flip-up lenses. This provides a clear and comfortable visual experience and accommodates the different interpupillary distances of various users.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING AOYING TECH CO LTD
- Filing Date
- 2025-01-02
- Publication Date
- 2026-04-24
AI Technical Summary
The fixed interpupillary distance design of existing flip mirrors results in the optical axis not being precisely aligned with the pupil, causing aberrations, line of sight deviation, visual fatigue, and poor applicability. They cannot meet the personalized needs of different users, especially children or specific groups.
Design a reversible mirror with an adjustable frame position. The mirror slides on the temple via a movable connecting seat and is locked in place with screws, achieving precise alignment between the optical axis of the lens and the user's pupil, thus adapting to differences in interpupillary distance among individuals.
It significantly reduces aberrations and visual fatigue caused by line-of-sight deviation, optimizes imaging effects, provides a clear and comfortable visual experience, and meets personalized needs, especially for users with asymmetrical or off-normal interpupillary distances.
Smart Images

Figure CN224155989U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flip mirror technology, specifically a flip mirror for visual training. Background Technology
[0002] With the increasing number of people with myopia, people are paying more and more attention to vision protection. As a result, the market for myopia prevention and control has seen the emergence of flip glasses. Flip glasses consist of two frames and an intelligent control system. By flipping the glasses and focusing on a target in front of you, the accommodative focus will jump from your eyes to infinity and back again. Repeated training can improve accommodative sensitivity, thereby improving vision and controlling the onset of myopia.
[0003] Interpupillary distance (IPD) is a crucial parameter for aligning the optical center of the lens with the user's pupil. Existing flip lenses often feature a fixed IPD design, which has the following drawbacks:
[0004] 1. Fixed interpupillary distance frame designs can easily lead to inaccurate alignment between the optical axis and the pupil, resulting in aberrations, line-of-sight deviations, and other problems that directly affect image quality and visual clarity.
[0005] 2. Optical misalignment may require the eyes to make extra adjustments to compensate for the focus deviation, thereby increasing visual burden and eye fatigue. Prolonged use may cause discomfort symptoms such as headaches and blurred vision.
[0006] 3. The fixed interpupillary distance design cannot meet the personalized needs of different users, especially users whose interpupillary distance deviates from the normal range (such as children or specific groups of people), who may not be able to use the product normally at all, which significantly reduces the applicability of the product.
[0007] 4. When the interpupillary distance of the lens does not match the user's actual interpupillary distance, it may cause binocular parallax problems, affecting the normal perception of stereoscopic vision, and thus negatively impacting depth perception and spatial positioning ability.
[0008] 5. Mismatched interpupillary distance may lead to long-term strain on the eye muscles and exacerbate eye problems such as eye strain, accommodative spasm, and even increased myopia. This health risk is even more serious for teenagers. Utility Model Content
[0009] The purpose of this invention is to provide a flip mirror for visual training, which has the advantage of being able to change the position of the frame, that is, the position of the lens inside the frame is controllable, effectively adapting to the differences in interpupillary distance of different individuals, and achieving precise alignment between the optical axis of the lens and the position of the user's pupil. This not only significantly reduces aberrations and visual fatigue caused by line of sight deviation, but also optimizes the imaging effect, thereby providing a clearer and more comfortable visual experience, and solves the problems mentioned in the background art.
[0010] To achieve the above objectives, the present invention provides the following technical solution: a flip mirror for visual training, comprising a mirror body and a flip mirror frame and a fixed mirror frame connected to the mirror body. The flip mirror frame and the fixed mirror frame include a mirror arm, two connecting seats, two mirror frames, and two screws. The connecting seats are movably connected to the mirror arm and are fixedly connected to the mirror frames. The screws are used to lock and position the connecting seats. The flip mirror frame is located in front of the fixed mirror frame.
[0011] Preferably, the mirror body is connected to a fixed arm and a rotating arm. The fixed arm is bolted to the fixed mirror frame, and the rotating arm is bolted to the flip-up mirror frame.
[0012] Preferably, the connecting seat is provided with an observation port, and the observation port is connected to an indicator arrow, which matches the scale line provided at the front end of the telescope arm.
[0013] Preferably, the observation port has a rectangular structure.
[0014] Preferably, the connector is provided with a threaded hole, and the screw is threadedly connected to the threaded hole.
[0015] Preferably, the bottom tip of the screw is pressed against the top of the arm.
[0016] Preferably, the connecting seat is slidably connected to the arm of the mirror.
[0017] Compared with existing technologies, the beneficial effects of this invention are as follows: This invention, by incorporating a flip-up frame and a fixed frame, allows the drive connecting seat to slide on the temple during use, thereby changing the position of the frame. This means the position of the lenses within the frame is controllable. Screws are then used to lock and position the frame, effectively adapting to differences in interpupillary distance (IPD) among individuals and achieving precise alignment between the lens optical axis and the user's pupil position. This adjustment not only significantly reduces aberrations and visual fatigue caused by line-of-sight deviation but also optimizes imaging effects, providing a clearer and more comfortable visual experience. Especially for users with asymmetrical or off-range IPD, the adjustable IPD design can meet individual needs, ensuring that every user receives optimal optical performance. Attached Figure Description
[0018] Figure 1 This is a frontal perspective view of the present invention;
[0019] Figure 2 This is a rear-view perspective view of the present invention;
[0020] Figure 3 This is a schematic diagram of the flip-up eyeglass frame structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the connection structure between the arm and the connecting seat of this utility model.
[0022] In the diagram: 1. Mirror body; 2. Fixed arm; 3. Rotating arm; 4. Flip frame; 5. Fixed frame; 6. Mirror arm; 7. Connecting seat; 8. Mirror frame; 9. Screw; 10. Indicator arrow; 11. Observation port; 12. Scale line; 13. Threaded hole. Detailed Implementation
[0023] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figures 1 to 4 This utility model provides a flip mirror for vision training, including a mirror body 1 and a flip frame 4 and a fixed frame 5 connected to the mirror body 1. The flip frame 4 can be flipped, while the fixed frame 5 remains in the same position. The flip frame 4 and the fixed frame 5 include a mirror arm 6, two connecting seats 7, two mirror frames 8, and two screws 9. The connecting seats 7 are movably connected to the mirror arm 6 and are fixedly connected to the mirror frames 8. The screws 9 are used to lock and position the connecting seats 7. The flip frame 4 is located in front of the fixed frame 5.
[0025] In use, the connecting seat 7 can be moved on the temple 6, thereby changing the position of the frame 8. This means the position of the lens within the frame 8 is controllable, effectively adapting to differences in interpupillary distance among individuals and achieving precise alignment between the lens optical axis and the user's pupil position. This significantly reduces aberrations and visual fatigue caused by line-of-sight deviation and optimizes image quality, providing a clearer and more comfortable visual experience. Once the frame 8 is in the appropriate position, the connecting seat 7 is locked in place using screws 9, improving the stability of the connection between the frame 8 and the temple 6.
[0026] The main body of the mirror 1 is connected to a fixed arm 2 and a rotating arm 3. The fixed arm 2 is connected to the fixed frame 5 by bolts, and the rotating arm 3 is connected to the flip frame 4 by bolts. Before adjusting the position of the frame 8, use a tool to loosen the bolts and remove the fixed frame 5 and the flip frame 4. Then, control the position of the frame 8. After adjustment, finally install and fix it.
[0027] The connecting base 7 is provided with an observation port 11, which is connected to an indicator arrow 10. The indicator arrow 10 matches the scale line 12 located at the front end of the lens arm 6. The observation port 11 has a rectangular structure. Through the observation port 11, the relative positional relationship between the indicator arrow 10 and the scale line 12 can be understood. The setting of the scale line 12 makes the specific distance of movement of the lens frame 8 very intuitive.
[0028] The connecting seat 7 is provided with a threaded hole 13, and the screw 9 is threadedly connected to the threaded hole 13. When positioning the connecting seat 7, the screw 9 is rotated with a tool so that the tip of the bottom of the screw 9 presses against the lens arm 6, thereby locking and fixing the connecting seat 7 and improving the stability of the connection between the lens frame 8 and the lens arm 6.
[0029] The connecting seat 7 is slidably connected to the arm 6, which improves the stability of the reciprocating movement of the connecting seat 7, that is, the frame 8 moves steadily.
[0030] Working principle: When adjusting the position of the lenses inside the frame 8, loosen the bolts using a tool to remove the fixed frame 5 and the flip frame 4. Then, drive the connecting seat 7 to move back and forth along the length of the arm 6. The movement distance of the connecting seat 7 and the frame 8 can be easily controlled by the use of the indicator arrow 10 and the scale line 12. Once the frame 8 is in the appropriate position, tighten the screw 9 using a tool, pressing the tip of the screw 9 against the arm 6 to improve the stability of the connecting seat 7, thus ensuring a secure connection between the frame 8 and the arm 6. Finally, reinstall the fixed frame 5 and the flip frame 4. This effectively adapts to differences in interpupillary distance among individuals, achieving precise alignment between the lens optical axis and the user's pupil position. This adjustment not only significantly reduces aberrations and visual fatigue caused by line-of-sight deviation but also optimizes image quality, providing a clearer and more comfortable visual experience, making it highly versatile.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A flip mirror for visual training, comprising a mirror body (1) and a flip frame (4) and a fixed frame (5) connected to the mirror body (1), characterized in that, The flip-up frame (4) and the fixed frame (5) include a telescope (6), two connecting seats (7), two frames (8), and two screws (9). The connecting seats (7) are movably connected to the telescope (6) and fixedly connected to the frames (8). The screws (9) are used to lock and position the connecting seats (7). The flip-up frame (4) is located in front of the fixed frame (5).
2. The flip mirror for visual training according to claim 1, characterized in that, The mirror body (1) is connected to a fixed arm (2) and a rotating arm (3). The fixed arm (2) is connected to the fixed mirror frame (5) by bolts, and the rotating arm (3) is connected to the flip mirror frame (4) by bolts.
3. The flip mirror for visual training according to claim 1, characterized in that, The connecting seat (7) is provided with an observation port (11), and the observation port (11) is connected to an indicator arrow (10), which matches the scale line (12) provided at the front end of the telescope arm (6).
4. A flip mirror for visual training according to claim 3, characterized in that, The observation port (11) is a rectangular structure.
5. A flip mirror for visual training according to claim 1, characterized in that, The connector (7) is provided with a threaded hole (13), and the screw (9) is threadedly connected to the threaded hole (13).
6. A flip mirror for visual training according to claim 5, characterized in that, The bottom tip of the screw (9) is pressed against the top of the arm (6).
7. A flip mirror for visual training according to claim 1, characterized in that, The connecting seat (7) is slidably connected to the arm (6).