Spectacle for the visually impaired

Abstract

The utility model provides a kind of visual impairment auxiliary glasses, it is related to glasses field, solve the lens of visual impairment auxiliary glasses, nose support disassembly is inconvenient, the problem of poor comfort;The visual impairment auxiliary glasses include glasses frame, outer layer lens, inner layer lens and nose support assembly, inner layer lens is fixed on glasses frame, glasses frame is provided with positioning groove, outer layer lens is provided with magnetic attraction part, magnetic attraction part is inserted into positioning groove, and with glasses frame magnetic attraction type fixed connection;Glasses frame is provided with slot, nose support assembly includes splicing part and nose pad, two nose pads are fixed on splicing part, splicing part is inserted into slot, and by locking piece detachable fixed connection on glasses frame. Outer layer lens and glasses frame magnetic attraction type fixed, user can adopt blue light protection lens, color-changing lens, high contrast lens and high contrast training lens as outer layer lens according to different needs, realize multi-scene adaptation;Nose support assembly is easy to disassemble, and different sizes of nose support assembly can be selected, to improve comfort and stability.

Description

Technical Field

[0001] This utility model relates to the field of eyeglasses technology, and in particular to an assistive eyeglass for the visually impaired. Background Technology

[0002] Assistive glasses for the visually impaired are assistive devices that combine optical, electronic, and artificial intelligence technologies. They aim to improve the independent living abilities of visually impaired individuals (including those with low vision and the totally blind) through functional compensation or substitution. Using cameras, radar, or sensors, they capture the surrounding environment in real time and utilize AI algorithms (such as YOLO v5) to identify obstacles, pathways, stairs, etc., providing users with information about the distance, location, and size of obstacles through 3D sound effects or vibration feedback. For those with low vision, features such as image magnification (up to 25x), contrast adjustment, and color filters are provided to help users read, view screens, or recognize details.

[0003] The applicant has discovered that the existing technology has at least the following technical problems: the lenses of the existing visual impairment assistive glasses cannot be removed, the structure and function are limited, and the nose pads are of fixed size, making it difficult to adapt to people with different nose bridge heights and nose shapes, resulting in poor wearing comfort; when it is necessary to remove the nose pads, the nose pads on both sides of the nose need to be removed one by one, which is inconvenient. Utility Model Content

[0004] The purpose of this utility model is to provide an assistive glasses for the visually impaired, so as to solve the technical problems of inconvenient lens and nose pad removal and poor comfort in the existing assistive glasses for the visually impaired; the various technical effects of the preferred technical solution among the many technical solutions provided by this utility model are described in detail below.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] The visual aid glasses provided by this utility model include a frame, an outer lens, an inner lens, and a nose pad assembly, wherein:

[0007] The inner lens is fixed to the frame, the frame has a positioning groove, the outer lens has a magnetic part, the magnetic part is inserted into the positioning groove and magnetically fixed to the frame;

[0008] The eyeglass frame is provided with a slot, and the nose pad assembly includes a connector and a nose pad. Two nose pads are fixed to the connector, the connector extends into the slot, and is detachably and fixedly connected to the eyeglass frame by a locking member.

[0009] Preferably, the magnetic suction part includes a magnetic strip, which is fixed on the outer lens, and the positioning groove is an elongated groove.

[0010] Preferably, the outer lens is further provided with a positioning post, which is located on one side or two pairs of sides of the magnetic suction part, and the positioning post can be inserted into the positioning groove.

[0011] Preferably, the insertion part includes an insertion block that extends into the slot, and the insertion block is provided with a through hole for the locking member to pass through.

[0012] Preferably, the nose pad assembly further includes connecting ribs, which are fixedly connected to the plug block and the corresponding nose pad, and the connecting ribs are designed to be deformable under external force.

[0013] Preferably, the number of nose pad components is two or more, and the size of the nose pad is different in each group of nose pad components.

[0014] Preferably, the assistive glasses for the visually impaired further include temples and hinges, the hinges being located on the inside of the frame, and the temples and the frame being hinged together by the hinges.

[0015] Preferably, the assistive glasses for the visually impaired further include a wireless earphone, and a magnetic block is fixedly disposed on the wireless earphone;

[0016] The temple is provided with a magnetic opening, and the magnetic block extends into the magnetic opening and is magnetically fixed to the temple.

[0017] Preferably, the magnetic block is a circular block, and the radial cross-section of the magnetic port is circular, thereby allowing the angle of the wireless earphone to be adjustable.

[0018] Preferably, the frame is equipped with a sensor module, a camera, function buttons, and indicator lights.

[0019] The visual impairment assistive glasses provided by this utility model have the following advantages compared with the prior art: the outer lens is magnetically fixed to the frame, and users can conveniently use anti-blue light lenses, photochromic lenses, high-contrast lenses, and high-contrast training lenses as the outer lens according to different scenario needs, so as to achieve multi-scenario adaptation; the inner lens is an AR display lens; when it is necessary to disassemble and replace the nose pad assembly of different sizes, only one locking piece needs to be removed to remove the entire nose pad assembly from the slot, which is convenient for disassembly and assembly. Users can choose different nose pad assemblies according to their own nose shape to ensure wearing comfort and stability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0021] Figure 1 This is a schematic diagram of the exploded structure of assistive glasses for the visually impaired;

[0022] Figure 2 This is a schematic diagram of the overall structure of assistive glasses for the visually impaired;

[0023] Figure 3 This is a schematic diagram of the positioning groove on the eyeglass frame;

[0024] Figure 4 This is a schematic diagram of the outer lens structure;

[0025] Figure 5 This is a schematic diagram of the slot structure on the picture frame;

[0026] Figure 6 This is a structural diagram of the nose bridge component;

[0027] Figure 7 This is a schematic diagram of the magnetic closure on the temple of the glasses;

[0028] Figure 8 This is a schematic diagram of the structure of a wireless earphone.

[0029] In the diagram: 1. Frame; 101. Positioning groove; 102. Slot; 2. Outer lens; 21. Magnetic strip; 22. Positioning post; 3. Inner lens; 4. Nose pad assembly; 41. Nose pad pad; 42. Insertion part; 43. Connecting rib; 5. Locking part; 6. Temple; 61. Magnetic opening; 7. Hinge; 8. Wireless earphone; 81. Magnetic block; 9. Sensor module; 10. Camera; 11. Function button; 12. Indicator light. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] In the description of this utility model, it should be understood that the terms "center," "length," "width," "height," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and "side," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component 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 utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] This invention provides an assistive glasses for the visually impaired, which allows for easy removal of the outer lens and nose pad assembly, ensuring comfort and stability during wear.

[0034] The following is combined Figures 1-8 The technical solution provided by this utility model will be described in more detail.

[0035] Example 1:

[0036] The visual aid glasses provided by this utility model include a frame 1, an outer lens 2, an inner lens 3, and a nose pad assembly 4. The inner lens 3 is fixed to the frame 1, and the frame 1 is provided with a positioning groove 101. The outer lens 2 is provided with a magnetic part, which is inserted into the positioning groove 101 and magnetically fixed to the frame 1. The frame 1 is provided with a slot 102. The nose pad assembly 4 includes a plug part 42 and two nose pads 41. The two nose pads 41 are fixed to the plug part 42, which extends into the slot 102 and is detachably fixed to the frame 1 by a locking member 5.

[0037] The positioning groove 101 refers to a recessed structure on the edge of the frame 1, which can be achieved by CNC machining or injection molding. It is used to constrain the installation position of the outer lens 2 and prevent the outer lens 2 from shifting. The magnetic part refers to a magnetic component attached to the edge of the outer lens 2, which can be a neodymium iron boron magnetic strip or a magnetized metal sheet. It forms a detachable connection with the frame 1 through magnetic force. The slot 102 refers to a groove-shaped structure that passes through the inside of the frame 1. It can be formed by milling and is used to accommodate the insertion part 42 of the nose pad assembly 4.

[0038] The insertion part 42 refers to the rigid component in the nose pad assembly 4 that connects to the frame 1. It can be made of nylon or metal and is fixed by engaging with the locking member 5 through a through hole. The nose pad 41 is the soft component that directly contacts the bridge of the nose. It can be made of silicone or thermoplastic elastomer and is fixed to the insertion part 42 by injection molding or bonding. The locking member 5 is the mechanical connector used to fix the insertion part 42. It can be a screw or snap-fit ​​structure, achieving a detachable connection through threaded engagement or elastic deformation.

[0039] Specifically, the inner lens 3 is fixed to the frame 1 as a basic optical component and can be an AR display lens in the existing technology.

[0040] The nose pad assembly 4 is inserted into the slot 102 on the frame 1 via the insertion part 42, and the locking piece 5 passes through the through hole of the insertion part 42 to complete the fixation. When it is necessary to adjust the size of the nose pad assembly, simply loosen the locking piece 5 to replace the entire nose pad assembly 4 without having to remove the nose pads on both sides separately.

[0041] This solution utilizes a composite connection structure of magnetic attraction and positioning groove 101 to achieve tool-free assembly and disassembly while ensuring optical accuracy. Existing nose pad adjustments require disassembling individual components; however, this solution integrates a double nose pad structure (41) into the connector 42, enabling complete replacement through single-point locking, significantly improving maintenance efficiency.

[0042] Through the above technical solution, this application achieves a quick-change function for the outer lens 2, allowing for flexible configuration of lens combinations with different optical characteristics according to usage needs. The nose pad assembly 4 is designed to be replaceable as a whole, enabling the glasses to fit users with different nose shapes and improving wearing comfort. The combined use of magnetic and plug-in structures greatly simplifies the disassembly and assembly process of the lenses and nose pads while ensuring reliable connection.

[0043] As an optional implementation, see Figure 4 As shown, the magnetic suction part includes a magnetic strip 21, which is fixed on the outer lens 2, and the positioning groove 101 is an elongated groove.

[0044] The magnetic strip 21 refers to a strip-shaped component with magnetic attraction function, which can be implemented using ferrite magnets or neodymium iron boron magnets. It is fixed to the edge of the outer lens 2 by bonding or embedding, and is used to form a detachable magnetic connection with the frame 1. The elongated groove refers to a straight or curved groove extending along the edge of the frame 1. It can be formed by injection molding or machining. It is used to accommodate the magnetic strip 21 and provide insertion guidance. Its length and width are adapted to the size of the magnetic strip 21 to ensure that a stable contact surface is formed after the magnetic strip 21 is inserted.

[0045] This application enables the outer lens 2 to be quickly replaced according to different usage scenarios. Users can conveniently use anti-blue light lenses, photochromic lenses, high-contrast lenses, and high-contrast training lenses as the outer lens 2 according to different scenario needs. At the same time, the guiding function of the elongated positioning groove 101 avoids the positional displacement of the outer lens 2 during installation, thereby improving the visual assistance effect and wearing comfort.

[0046] As an optional implementation, see Figure 4 As shown, the outer lens 2 is also provided with a positioning post 22. The positioning post 22 is located on one side or two pairs of sides of the magnetic suction part. The positioning post 22 can be inserted into the positioning groove 101.

[0047] The positioning post 22 refers to the protruding structure set on the edge of the outer lens 2. It can be in the shape of a cylinder or a square column, and its diameter or side length can be set to 1 mm to 3 mm, for use in cooperating with the positioning groove 101.

[0048] This embodiment forms a dual fixing mechanism of magnetic attraction and mechanical attraction by adding a positioning post 22 and a positioning groove 101 to the physical limiting structure, thereby improving the connection stability without the need for additional locking devices.

[0049] As an optional implementation, see Figure 6 As shown, the plug-in part 42 includes a plug-in block that extends into the slot 102 and has a through hole for the locking member 5 to pass through.

[0050] When the nose pads need to be replaced, the locking element 5 is released, and the insert block can be pulled out as a whole along the axial path of the slot 102 without the need for separate operation of the nose pads on both sides. The contact surface between the insert block and the slot 102 maintains wearing stability through friction. After the locking element 5 penetrates the through hole, it forms a rigid constraint with the frame 1, preventing the nose pads from shifting due to head movement. The locking element 5 can be a buckle or a screw, etc.

[0051] Compared to existing technologies, traditional nose pad components 4 use separate clips or adhesive for fixation, requiring external force to be applied to both sides of the nose pads individually during disassembly, which can easily cause deformation of the frame 1 or damage to the nose pads. This solution achieves rapid positioning through the guiding cooperation of the plug block and slot 102. The locking component 5 only requires a single operation to complete the overall assembly and disassembly of the nose pad component 4, reducing the number of steps while ensuring connection strength. This embodiment enables the rapid replacement of the entire nose pad component 4, solving the problem of cumbersome disassembly caused by the separate structure in traditional technologies. It allows users with different nose shapes to adjust the wearing angle and pressure distribution by replacing the nose pad component 4, improving fit flexibility and wearing comfort.

[0052] As an optional implementation, see Figure 6 As shown, the nose pad assembly 4 also includes a connecting rib 43, which fixes the connecting plug block and the corresponding nose pad 41 respectively. The connecting rib 43 is designed to be deformable under external force.

[0053] The connecting rib 43 refers to the strip-shaped structure connecting the plug-in block and the nose pad 41. It can be made of elastic metal or flexible plastic, and its deformation capability allows for the adjustment of the nose pad 41's angle. The deformation of the connecting rib 43 allows the nose pad 41 to automatically adjust its tilt angle according to the shape of the bridge of the nose. For example, when the bridge of the nose is high, the connecting ribs 43 on both sides are compressed and bent, causing the nose pad 41 to unfold outwards; when the bridge of the nose is narrow, the connecting ribs 43 spring back, causing the nose pad 41 to retract inwards. After the external force is removed, the elastic restoring force of the connecting rib 43 allows it to return to its initial shape, preventing permanent deformation.

[0054] This embodiment enables the nose pad 41 to adaptively adjust its angle according to the shape of the nose bridge, solving the problem of discomfort caused by the nose pad component 4 being difficult to adapt to different nose shapes. At the same time, it avoids the cumbersome operation of frequently disassembling the nose pad component 4, improving the versatility and wearing comfort of the visual impairment assistive glasses.

[0055] As an optional implementation, the number of nose pad components 4 is two or more, and the nose pad 41 in each group of nose pad components 4 has a different size.

[0056] When users need to adjust the nose pads, they can select a nose pad component 4 that matches their own nose size. For example, users with a low nose bridge can choose a smaller nose pad component 41 to reduce pressure on the nose bridge; users with wider nostrils can choose a larger nose pad component 41 to increase support stability. Each nose pad component 4 is fixed to the slot 102 of the frame 1 via the insertion part 42. When replacing, it can be removed simply by releasing the locking part 5, without the need for tools. By pre-setting multiple sets of nose pad components 4 with different sizes, full coverage adaptation is achieved from low nose bridge to high nose bridge, and narrow nostrils to wide nostrils.

[0057] In this embodiment, users can choose the most suitable size according to individual differences to avoid problems such as the frame 1 sagging due to an oversized nose pad or excessive local pressure due to an undersized nose pad.

[0058] As an optional implementation, see Figure 2 As shown, the assistive glasses for the visually impaired also include temples 6 and hinges 7. The hinges 7 are located on the inside of the frame 1, and the temples 6 and the frame 1 are hinged together by the hinges 7.

[0059] In this embodiment, the hinge 7 structure enables the temple 6 to be freely adjustable in terms of unfolding angle and folded for storage. This not only improves the adaptability of the glasses to users with different head shapes and enhances the portability of the product, but also avoids structural interference and appearance defects caused by exposed hinge 7.

[0060] As an optional implementation, the assistive glasses for the visually impaired also include a wireless earphone 8, on which a magnetic block 81 is fixedly disposed; a magnetic opening 61 is provided on the temple 6, and the magnetic block 81 extends into the magnetic opening 61 and is magnetically fixed to the temple 6.

[0061] The wireless earphones 8 are magnetically attached to the magnetic opening 61 of the temple 6 via a magnetic block 81. Once inserted into the magnetic opening 61, the magnetic block 81 remains in a fixed position under magnetic force. When adjusting the wearing angle of the wireless earphones 8, the user can apply external force to rotate the magnetic block 81 around its axis within the magnetic opening 61. The circular cross-section of the magnetic opening 61 allows the magnetic block 81 to adjust freely within a 360-degree range, thus allowing the wireless earphones 8 to fit the ear contours of different users. For disassembly, applying a pulling force allows the magnetic block 81 to detach from the magnetic opening 61, enabling quick separation of the wireless earphones 8.

[0062] This embodiment replaces the mechanical fixing structure with a magnetic connection, enabling tool-free installation, removal, and angle adjustment of the headphones. The circular design of the magnetic port 61 allows the headphones to rotate continuously, avoiding the limitations of traditional segmented adjustments. This achieves tool-free, quick assembly and disassembly of the wireless headphones 8 and temples 6, and the headphone angle can be flexibly adjusted according to the user's ear shape, reducing the pressure caused by a fixed angle. The physical characteristics of the magnetic connection avoid the wear and tear caused by frequent disassembly and reassembly of mechanical clips, extending the service life of the components.

[0063] As an optional implementation, the magnetic block 81 is a circular block, and the radial cross-section of the magnetic port 61 is circular, thereby allowing the angle of the wireless earphone 8 to be adjustable.

[0064] When the magnetic block 81 is inserted into the magnetic port 61, the geometric symmetry of the circular cross-section allows the wireless earphone 8 to rotate around the axis of the magnetic port 61.

[0065] As an optional implementation, see Figure 1 and Figure 2As shown, the frame 1 is equipped with a sensor module 9, a camera 10, a function button 11, and an indicator light 12.

[0066] The sensor module 9 refers to various sensing devices integrated inside or on the surface of the mirror frame 1, specifically ultrasonic sensors, infrared sensors, or distance sensors, used to detect the distance and location of obstacles in the surrounding environment in real time. The camera 10 refers to an image acquisition device fixed to the front end of the mirror frame 1, specifically a high-resolution miniature camera 10, used to capture visual information of the scene in front of the user. The function button 11 refers to the operation interface located on the side of the mirror frame 1, specifically physical buttons or touch buttons, used to receive user input control commands such as power on / off and mode switching. The indicator light 12 refers to a light-emitting element embedded in the edge of the mirror frame 1, specifically multi-color LED beads, used to indicate the device's operating status or alarm information through color changes or flashing frequency. Specifically, sensor module 9 collects environmental data through multi-type sensor fusion and combines it with visual information acquired by camera 10 to provide multimodal input for AI algorithms, enabling obstacle recognition and spatial positioning. Function button 11 features a raised dot design for easy tactile positioning and supports single-button combination operation modes, reducing the operational complexity for visually impaired users. Specifically, the depth sensor and camera 10 are integrated into the top of the frame 1 in a concealed layout, accurately perceiving the surrounding environment without affecting the appearance. The camera 10 and depth sensor are calibrated via a mobile app, and the sensitivity of the AR navigation path is set.

[0067] Indicator light 12 is linked to sensor module 9. When a nearby obstacle is detected, it triggers a red warning flash, automatically switching to a solid green mode in low-light environments. Compared to existing technologies, traditional assistive glasses for the visually impaired typically only have a single sensor or lack interactive components, resulting in limited environmental perception and an inability to perform active control. This solution integrates multiple types of sensors and interactive components to construct a complete perception-processing-feedback chain. For example, in existing technologies without function button 11, users cannot quickly switch image magnification modes, while this solution allows direct activation of preset functions through button combinations.

[0068] Sensor module 9 integrates a ToF camera 10, an infrared camera 10, and a status indicator light 12, concealed at the top of the lens frame 1. The left lens frame camera includes a monocular RGB camera for environmental perception; the right lens frame camera includes a monocular RGB camera 10 and an infrared camera for low-light environment perception and auxiliary depth calculation.

[0069] The Bluetooth communication module is integrated inside the temple 6 and connected to the motherboard via a flexible circuit. It supports wireless data transmission with external devices, ensuring that users can receive navigation instructions in real time via a mobile app.

[0070] Specifically, the visually impaired assistive glasses in this embodiment employ an AR navigation algorithm developed on the Unity platform, which overlays navigation paths in real time to provide accurate navigation guidance for visually impaired users. Multi-sensor collaborative logic: ToF camera generates depth point cloud → binocular camera captures RGB images → millimeter-wave radar detects dynamic obstacles → nine-axis IMU compensates for head movement → multi-source data fusion algorithm → outputs a 3D semantic map to the AR display layer. AR optical path calibration: During assembly, a six-axis calibrator is used to adjust the angle between the waveguide layer and the lens, ensuring the virtual image distance (VID) remains stable at 2m ± 0.1m. Power consumption optimization: Dynamic power management (DPM) strategy, sensors start and stop on demand (standby power consumption < 50mW). Time-division multiplexing mechanism: The ambient light sensor automatically switches the working mode (binoculars are activated when illumination > 100 lux, ToF is activated when illumination ≤ 100 lux). Anti-interference design: The millimeter-wave radar uses the 77GHz band (4GHz bandwidth) to avoid conflict with Wi-Fi / Bluetooth signals. Anti-crosstalk design: The ToF transmitter and the infrared night vision camera work in a time-sharing manner (time slice interval of 1ms) to avoid band conflict.

[0071] The beneficial effects of this invention are as follows: Multi-scene adaptation: Quick switching via magnetic lenses meets the usage needs of different environments. Ergonomic optimization: The frame 1 is 130-140mm wide, and the temples 6 have a tilt angle of 10-15°, adapting to Asian face shapes, reducing ear pressure by 45%, and improving wearing comfort. Concealed design: The sensor is integrated into the top of the frame 1, resulting in a clean appearance and minimizing impact on the user's social experience. Portability: The volume is reduced by 50% when folded, making it convenient for users to carry and store.

[0072] The specific features, structures, or characteristics described in this specification may be combined in any suitable manner in one or more embodiments or examples.

[0073] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0074] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A pair of assistive glasses for the visually impaired, characterized in that, Includes the frame, outer lens, inner lens, and nose pad assembly, among which: The inner lens is fixed to the frame, the frame has a positioning groove, the outer lens has a magnetic part, the magnetic part is inserted into the positioning groove and magnetically fixed to the frame; The eyeglass frame is provided with a slot, and the nose pad assembly includes a connector and a nose pad. Two nose pads are fixed to the connector, the connector extends into the slot, and is detachably and fixedly connected to the eyeglass frame by a locking member.

2. The assistive glasses for the visually impaired according to claim 1, characterized in that, The magnetic suction part includes a magnetic strip, which is fixed on the outer lens, and the positioning groove is an elongated groove.

3. The assistive glasses for the visually impaired according to claim 1, characterized in that, The outer lens is also provided with a positioning post, which is located on one side or two pairs of sides of the magnetic suction part, and the positioning post can be inserted into the positioning groove.

4. The assistive glasses for the visually impaired according to claim 1, characterized in that, The insertion part includes an insertion block that extends into the slot and has a through hole for the locking member to pass through.

5. The assistive glasses for the visually impaired according to claim 4, characterized in that, The nose pad assembly also includes connecting ribs, which are fixedly connected to the plug block and the corresponding nose pad, respectively. The connecting ribs are designed to be deformable under external force.

6. The assistive glasses for the visually impaired according to claim 1, characterized in that, The number of nose pad components is two or more, and the size of the nose pad in each group of nose pad components is different.

7. The assistive glasses for the visually impaired according to claim 1, characterized in that, The assistive glasses for the visually impaired also include temples and hinges, with the hinges located inside the frame, and the temples and the frame being hinged together by the hinges.

8. The assistive glasses for the visually impaired according to claim 7, characterized in that, The assistive glasses for the visually impaired also include a wireless earphone, on which a magnetic block is fixedly installed; The temple is provided with a magnetic suction port, and the magnetic block extends into the magnetic suction port and is magnetically fixed to the temple.

9. The assistive glasses for the visually impaired according to claim 8, characterized in that, The magnetic block is a circular block, and the radial cross-section of the magnetic port is circular, thereby allowing the angle of the wireless earphone to be adjusted.

10. The assistive glasses for the visually impaired according to claim 1, characterized in that, The frame is equipped with a sensor module, a camera, function buttons, and indicator lights.

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