An AR glasses structure

Abstract

This application discloses an AR glasses structure, including a frame. The front ends of both temples are connected to the frame via positioning connectors. The positioning connectors include temple sleeves, a light-shielding positioning shield, and a light-shielding shield. The light-shielding positioning shield is disposed within the light-shielding shield. The upper sidewall of the light-shielding positioning shield is hinged to the light-shielding shield via a first hinge axis, and the lower sidewall of the light-shielding positioning shield is hinged to the lower sidewall of the opening of the light-shielding shield via a second hinge axis. The front ends of the temples pass through the temple sleeves. The support feet at the front ends of the temple sleeves are respectively hinged to the first and second hinge axes. When the sleeve body and the light-shielding positioning shield rotate bidirectionally around the hinge axes, they have a relative rotation limit position during rotation in different directions. This application can achieve temple opening and bending storage similar to traditional glasses, while also providing precise and stable positioning while ensuring light leakage is avoided, thus guaranteeing the stability and reliability of the display effect.

Description

Technical Field

[0001] This application relates to the field of AR glasses technology, and more particularly to an AR glasses structure. Background Technology

[0002] Augmented reality (AR) glasses, as a next-generation computing platform, aim to seamlessly overlay virtual information onto the real world, providing users with an immersive experience. To achieve this goal, AR glasses typically integrate a miniature display optical engine and waveguide lenses. The display optical engine is responsible for generating images, while the waveguide lenses transmit the images emitted by the optical engine to the user's eye.

[0003] In current AR glasses designs, to more closely resemble traditional glasses, the display optical engine is typically placed in the temples, with the emitted light directed towards the waveguide coupling area. However, the relative position and angle between the display optical engine and the waveguide coupling area must be extremely precise. Even minute deviations can have catastrophic consequences for image quality. For example, tiny linear displacements in position (X, Y, Z axis offsets) can lead to reduced brightness, poor uniformity, and even cropping of the field of view (FoV). Tiny angular deviations can cause chromatic aberration (rainbow effect), image distortion, blurring, or ghosting. This alignment precision requirement far exceeds the manufacturing tolerances of traditional glasses.

[0004] However, the core function of traditional eyeglass temples is to rotate around a hinge axis for easy storage and wearing. This hinge structure (whether screw-fixed or spring-loaded) typically uses a "clearance fit," and its design does not include maintaining high-precision alignment. Long-term, high-frequency rotation, as well as wear, bumps, and environmental factors (such as thermal expansion and contraction) during daily wear, inevitably lead to structural loosening and tolerance accumulation in the hinge structure that is imperceptible to the naked eye but fatal to the optical system. This causes a shift in the relative position of the display optical engine and the waveguide coupling area, severely affecting the display performance of AR glasses.

[0005] To circumvent the aforementioned problems, existing technologies generally employ a compromise: the front temple section, which contains the display optical engine, is fixedly connected to the frame as a single, immovable rigid unit, thus ensuring that the relative positions of the optical engine and waveguide are permanently locked after leaving the factory. The rear section of the temple is designed as a bendable or detachable structure to accommodate different head shapes and facilitate storage.

[0006] Although this solution has solved the technical problem of the relative positional misalignment between the display optical engine and the waveguide coupling area to some extent, its overall volume after storage is much larger than that of traditional folded glasses because the temples are usually only bent inward. This makes it impossible to fit into a standard-sized glasses case, significantly reducing portability.

[0007] Therefore, while pursuing the traditional form of glasses, how to achieve convenient storage while ensuring precise coupling between the display optical engine and the waveguide is a key technical problem that the industry urgently needs to solve. Utility Model Content

[0008] This application provides an AR glasses structure that, while being more similar in shape to traditional glasses, offers good protection and light-blocking performance as well as accurate positioning performance.

[0009] To achieve the above objectives, this application provides an AR glasses structure, which includes a frame, a waveguide lens disposed within the frame, and a temple on each of the left and right sides of the frame. The side of the temple relative to the frame is defined as the rear side, and the extension plane of the waveguide lens is defined as a vertical plane perpendicular to the front-rear direction. The front ends of both temples are connected to the frame via positioning connectors.

[0010] The positioning connector includes a temple sleeve, a light-shielding positioning cover, and a light-shielding cover. Both the light-shielding positioning cover and the light-shielding cover are C-shaped sleeves with an opening on one side.

[0011] The sunshade extends roughly along the front-to-back direction, with its opening located on the side furthest from the outer edge of the frame on either side. The front end of the sunshade is fixedly connected to the frame.

[0012] The light-shielding positioning cover is installed inside the light-shielding cover, and the opening of the light-shielding positioning cover is on the same side as the opening of the light-shielding cover.

[0013] The upper sidewall of the light-shielding positioning cover opening is hinged to the upper sidewall of the light-shielding cover opening via a first hinge axis, and the lower sidewall of the light-shielding positioning cover opening is hinged to the lower sidewall of the light-shielding cover opening via a second hinge axis. The first hinge axis and the second hinge axis are coaxially arranged and extend approximately in the vertical direction. The light-shielding positioning cover rotates relative to the light-shielding cover around the first hinge axis and the second hinge axis.

[0014] The temple sleeve includes a sleeve body for fixing the front end of the temple, the front end of the temple passing through the sleeve body and extending beyond the front end face of the sleeve body.

[0015] The front end of the sleeve body has two legs extending forward along the axial direction of the sleeve body. The two legs are respectively located on the upper and lower sides of the sleeve body in a vertical direction. The upper leg is hinged to the first hinge axis, and the lower leg is hinged to the second hinge axis. The part of the front end of the temple that extends beyond the sleeve body extends into the light-shielding positioning cover.

[0016] A positioning connection structure is provided between the support leg and the light-shielding positioning cover. The positioning connection structure ensures that when the sleeve body and the light-shielding positioning cover rotate relative to each other around the hinge axis, there is a relative rotation limit position during the rotation process in different rotation directions. After reaching the relative rotation limit position, the sleeve body drives the light-shielding positioning cover to rotate through the positioning connection structure.

[0017] When the temples are open, the sleeve body and the light-blocking positioning shield are at the first relative rotation limit position. When the temples are closed, the sleeve body and the light-blocking positioning shield are at the second relative rotation limit position.

[0018] Specifically, the positioning connection structure includes a first positioning connection structure between the upper support leg and the upper side wall of the light-shielding positioning cover, and a second positioning connection structure between the lower support leg and the lower side wall of the light-shielding positioning cover. The first positioning connection structure allows the upper support leg and the light-shielding positioning cover to have a certain degree of freedom to rotate relative to each other around a first hinge axis, and the second positioning connection structure allows the lower support leg and the light-shielding positioning cover to have a certain degree of freedom to rotate relative to each other around a second hinge axis. The first and second positioning connection structures work synchronously and collaboratively, so that when the sleeve body and the light-shielding positioning cover rotate relative to each other around the first and second hinge axes, they each have a relative rotation limit position during rotation in different directions. During the rotation of the sleeve body in both directions, when the sleeve body and the light-shielding positioning cover reach the corresponding relative rotation limit position, the sleeve body drives the light-shielding positioning cover to rotate through the first and second positioning connection structures.

[0019] Furthermore, during the process of the temple opening from the retracted state to the open state, the sleeve body rotates forward around the hinge axis with the temple. The sleeve body and the light-shielding positioning shield rotate forward relative to each other from the second relative rotation limit position. When the first relative rotation limit position is reached, the sleeve body drives the light-shielding positioning shield to rotate forward around the hinge axis through the positioning connection structure until the temple reaches the open state. The sleeve body and the light-shielding positioning shield are at the first relative rotation limit position and are coaxial.

[0020] Specifically, image display elements are located at the front of both the left and right temples. These elements emit image light forward along the temple's extension direction. Waveguide lenses guide the image light emitted by the display elements, along with ambient light, into the eye. The area of ​​the waveguide lens that receives the image light emitted by the display elements is called the coupling region. A light-transmitting hole is located at the coupling region of the waveguide lens on the frame to expose this region. This light-transmitting hole is situated within the area surrounded by a light-shielding shield. Furthermore, when the light-shielding positioning shield is rotated to be coaxial with it, the light-transmitting hole is located within the area surrounded by the light-shielding positioning shield.

[0021] Specifically, the cross-section of the light-shielding positioning cover and the light-shielding cover at any position is a C-shaped cross-section when cut by a plane perpendicular to their axis.

[0022] Optionally, the front face of the light-shielding positioning cover is provided with a first snap-fit ​​positioning structure, and the frame is provided with a second snap-fit ​​positioning structure that cooperates with the first snap-fit ​​positioning structure for positioning. When the light-shielding positioning cover rotates forward around the hinge axis until its axial extension direction is perpendicular to the extension plane of the waveguide lens on its front side, the front face of the light-shielding positioning cover is in close contact with the frame, and the first snap-fit ​​positioning structure and the second snap-fit ​​positioning structure are engaged, which not only positions the temples but also prevents the light-shielding positioning cover from continuing to rotate forward. At this time, the temples are in the open state, and the light beam emitted from the image display element inside the temples enters the coupling area through the light-transmitting hole. Obviously, the second snap-fit ​​positioning structure is located inside the light-shielding cover and outside the light-transmitting hole.

[0023] During the process of the temple rotating from the open state to the closed state, the sleeve body rotates in the opposite direction around the hinge axis along with the temple. The sleeve body and the light-shielding positioning shield rotate in opposite directions from the first relative rotation limit position. When the second relative rotation limit position is reached, the sleeve body drives the light-shielding positioning shield to rotate in the opposite direction around the hinge axis through the positioning connection structure until the temple reaches the closed state.

[0024] Optionally, a stop block is provided on the side of the frame near the opening of the sunshade. When the temple is in the retracted state, the sleeve body contacts the stop block, which restricts the continued reverse rotation of the sleeve body. More preferably, a stop surface is provided on the front end face of the sunshade positioning cover near the opening of the sunshade positioning cover. When the temple is in the retracted state, the stop surface contacts the frame, and the frame restricts the continued reverse rotation of the sunshade positioning cover through the stop surface.

[0025] In some preferred embodiments, when the temple is in the open state, the front end face of the temple is located within the light-transmitting aperture, thereby bringing the image display element of the temple closer to the waveguide lens. This requires the aperture diameter to be larger than the outer diameter of the front end of the temple so that the rotation of the temple about the hinge axis is not interfered with. Similarly, the axial length of the portion of the front end of the temple extending beyond the sleeve body is determined to not interfere with the rotation of the temple about the hinge axis, including but not limited to not affecting the first relative rotation limit position and the second relative rotation limit position between the sleeve body and the light-shielding positioning cover, not affecting the engagement of the first snap-fit ​​positioning structure and the second snap-fit ​​positioning structure, and not affecting the temple reaching the retracted state.

[0026] Optionally, the first positioning connection structure includes an arc-shaped guide groove on the side wall of the upper side of the light-shielding positioning cover and a connecting post on the upper support leg. The center of the arc-shaped guide groove is located on the axis of the first hinge shaft. The width of the arc-shaped guide groove matches the outer diameter of the connecting post. The connecting post is slidably disposed in the arc-shaped guide groove. When the temple sleeve rotates bidirectionally relative to the light-shielding positioning cover around the hinge shaft, the connecting post slides bidirectionally along the arc-shaped guide groove within the arc-shaped guide groove.

[0027] Optionally, the second positioning connection structure includes an arc-shaped guide groove on the side wall of the lower side of the light-shielding positioning cover and a connecting post on the lower support leg. The center of the arc-shaped guide groove is located on the axis of the second hinge shaft. The width of the arc-shaped guide groove matches the outer diameter of the connecting post. The connecting post is slidably disposed in the arc-shaped guide groove. When the temple sleeve rotates bidirectionally relative to the light-shielding positioning cover around the hinge shaft, the connecting post slides bidirectionally along the arc-shaped guide groove within the arc-shaped guide groove.

[0028] Optionally, the first snap-fit ​​positioning structure is a snap-fit ​​groove provided on the front end face of the light-shielding positioning cover, and the second snap-fit ​​positioning structure is a snap-fit ​​protrusion provided on the frame that corresponds to and cooperates with the snap-fit ​​groove.

[0029] In some preferred embodiments, the frame has a first groove for accommodating cables, and the inner wall of the sleeve body has a second groove for the cables to pass through. The second groove extends parallel to the axis of the sleeve body and penetrates the sleeve body. The frame also has a through hole that extends through the frame in the front-to-back direction and connects to the first groove. A gap is formed between the two legs for the cables to pass through. The cables placed in the first groove pass through the through hole, the gap between the two legs, and into the second groove. Optionally, after passing through the second groove, the cables enter the interior of the temple.

[0030] Specifically, the cable is used to connect electronic components inside the two temples, and / or to connect electronic components inside the temples to electronic components inside the frame.

[0031] Preferably, both the second groove and the threading hole are located between the two legs of the temple sleeve. Further, "both the second groove and the threading hole are located between the two legs" means that the second groove is located directly behind the gap formed between the two legs, and the threading hole is located directly in front of the gap formed between the two legs.

[0032] One or more technical solutions in this application have at least the following technical effects or advantages:

[0033] This application, by setting up linked temple sleeves, light-shielding positioning covers, and light-shielding covers that serve as the mounting base for the hinge axis, achieves both the opening and folding of temples similar to traditional eyeglasses, while minimizing the size of the components, and provides precise and stable positioning to prevent light leakage, ensuring the stability and reliability of the display effect. Simultaneously, the light-shielding covers and the light-shielding positioning covers form a protective shell for housing the front image display element of the temples, providing protection for the image display element regardless of the temple's position.

[0034] This application creates a cable-accommodating space channel by setting a threading hole, a gap between the two legs, and a second groove. During the opening or closing of the temples, this space channel provides a certain amount of space for the cable, allowing the cable to bend at large angles without being completely flush with the temples. This effectively avoids problems such as fatigue, breakage, or poor internal contact caused by frequent bending, improving the reliability and durability of the product and enhancing the user experience. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of this application;

[0036] Figure 2 This is a schematic diagram of the mating structure of the temple sleeve, the light-shielding positioning shield, and the light-shielding shield in this application;

[0037] Figure 3 This is a schematic diagram of the structure of the temple sleeve;

[0038] Figure 4 A schematic diagram of the structure of the light-shielding positioning shield;

[0039] Figure 5 This is a schematic diagram of the mating structure between the temple sleeve and the light-shielding positioning cover;

[0040] Figure 6 This is a schematic diagram of the structure when the temple of the glasses is in the first relative rotational limit position between the sleeve body and the light-shielding positioning cover during the opening of the temple.

[0041] Figure 7 A schematic diagram of the structure in which the sleeve body and the light-shielding positioning cover are in the second relative rotation limit position during the retraction of the temple;

[0042] Figure 8 This is a schematic diagram of the structure of the temples of the present application when they are in the open position;

[0043] Figure 9 A schematic diagram showing the structure for the first groove and the threading hole. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0045] like Figure 1 As shown, this application provides an AR glasses structure, which includes a frame 100, a waveguide lens 200 disposed inside the frame 100, and a temple 300 disposed on each of the left and right sides of the frame 100. The side of the temple 300 relative to the frame 100 is the rear side, and the extension plane of the waveguide lens 200 is the vertical plane perpendicular to the front-back direction. The front ends of the two temples 300 are connected to the frame 100 through positioning connectors. An image display element is disposed at the front of the left temple 300 and the right temple 300. The image display element emits image light forward along the extension direction of the temple 300. The waveguide lens 200 is used to guide the image light emitted by the image display element and the external ambient light into the human eye. The area of ​​the waveguide lens 200 used to receive the image light emitted by the image display element is the coupling area.

[0046] It should be noted that in some embodiments, the waveguide lenses 200 on the left side and the right side of the frame 100 are not on the same plane. In this case, the extended plane of the waveguide lens 200 on the same side as a certain temple 300 is regarded as a vertical plane in the coordinate system that describes the connection structure between the temple 300 on that side and the frame 100, which is perpendicular to the front and back direction.

[0047] Combination Figure 1 , Figure 2 As shown, the positioning connector includes a temple sleeve 401, a light-shielding positioning cover 402, and a light-shielding cover 403. Both the light-shielding positioning cover 402 and the light-shielding cover 403 are C-shaped sleeves with an opening on one side. That is, the cross-section of the light-shielding positioning cover 402 and the light-shielding cover 403 at any position is a C-shaped cross-section when cut by a plane perpendicular to its axis.

[0048] The sunshade 403 extends approximately along the front-to-back direction, with its opening located on the side furthest from the outer edge of the frame 100 on its left and right sides. The front end of the sunshade 403 is fixedly connected to the frame 100.

[0049] A light-shielding positioning cover 402 is disposed inside a light-shielding cover 403, and the opening of the light-shielding positioning cover 402 and the opening of the light-shielding cover 403 are on the same side.

[0050] The side wall above the opening of the light-shielding positioning cover 402 is hinged to the side wall above the opening of the light-shielding cover 403 via the first hinge shaft 404.

[0051] The side wall below the opening of the light-shielding positioning cover 402 is hinged to the side wall below the opening of the light-shielding cover 403 via a second hinge axis.

[0052] The first hinge axis 404 and the second hinge axis are coaxially arranged and extend approximately in a vertical direction. The light-shielding positioning cover 402 rotates relative to the light-shielding cover 403 around the first hinge axis 404 and the second hinge axis.

[0053] The frame 100 is provided with a light-transmitting hole 101 for exposing the coupling area at the coupling area position of the waveguide lens 200. The light-transmitting hole 101 is located in the area surrounded by the light-shielding cover 403. Furthermore, when the light-shielding positioning cover 402 is rotated to be coaxial with the light-shielding cover 403, the light-transmitting hole 101 is located in the area surrounded by the light-shielding positioning cover 402.

[0054] Combination Figure 3 , Figure 4 , Figure 5 As shown, the temple sleeve 401 includes a sleeve body 4011 for fixing the front end of the temple 300. The front end of the temple 300 passes through the sleeve body 4011 and extends beyond the front end face of the sleeve body 4011.

[0055] The front end of the sleeve body 4011 has two legs 4012 extending forward along the axial direction of the sleeve body 4011. The two legs 4012 are respectively disposed on the upper and lower sides of the sleeve body 4011 in the vertical direction. The upper leg 4012 is hinged to the first hinge shaft 404, and the lower leg 4012 is hinged to the second hinge shaft. The part of the front end of the temple 300 that extends beyond the sleeve body 4011 extends into the light-shielding positioning cover 402.

[0056] A first positioning connection structure is provided between the upper support leg 4012 and the upper side wall of the light-shielding positioning cover 402, and a second positioning connection structure is provided between the lower support leg 4012 and the lower side wall of the light-shielding positioning cover 402.

[0057] The first positioning connection structure allows the upper support leg 4012 and the light-shielding positioning cover 402 to rotate relative to each other around the first hinge axis 404 by a certain degree of freedom. The second positioning connection structure allows the lower support leg 4012 and the light-shielding positioning cover 402 to rotate relative to each other around the second hinge axis by a certain degree of freedom. The first and second positioning connection structures work synchronously and in coordination, so that when the sleeve body 4011 and the light-shielding positioning cover 402 rotate relative to each other around the first and second hinge axes in both directions, they have a relative rotation limit position during rotation in different directions. During the rotation of the sleeve body 4011 in both directions, when the sleeve body 4011 and the light-shielding positioning cover 402 reach the corresponding relative rotation limit position, the sleeve body 4011 drives the light-shielding positioning cover 402 to rotate through the first and second positioning connection structures.

[0058] When the temple 300 is in the open state, the sleeve body 4011 and the light-shielding positioning cover 402 are at the first relative rotation limit position. When the temple 300 is in the closed state, the sleeve body 4011 and the light-shielding positioning cover 402 are at the second relative rotation limit position.

[0059] Combination Figure 1 , Figure 8 , Figure 6 and Figure 7 As shown, specifically, during the process of the temple 300 opening from the retracted state to the open state, the sleeve body 4011 rotates forward around the hinge axis with the temple 300. The sleeve body 4011 and the light-shielding positioning cover 402 rotate relative to each other from the second relative rotation limit position. When the first relative rotation limit position is reached, the sleeve body 4011 drives the light-shielding positioning cover 402 to rotate forward around the hinge axis through the positioning connection structure until the temple 300 reaches the open state. The sleeve body 4011 and the light-shielding positioning cover 402 are in the first relative rotation limit position, and the sleeve body 4011 and the light-shielding positioning cover 402 are coaxial.

[0060] The front end of the light-shielding positioning cover 402 is provided with a first snap-fit ​​positioning structure 503, and the frame 100 is provided with a second snap-fit ​​positioning structure 504 that cooperates with the first snap-fit ​​positioning structure 503 for positioning. When the light-shielding positioning cover 402 rotates forward around the hinge axis until its axial extension direction is perpendicular to the extension plane of the waveguide lens 200 on its front side, the front end of the light-shielding positioning cover 402 is in close contact with the frame 100, and the first snap-fit ​​positioning structure 503 and the second snap-fit ​​positioning structure 504 cooperate to snap together, which not only positions the temple but also prevents the light-shielding positioning cover 402 from continuing to rotate forward. At this time, the temple 300 is in the open state. At this time, the light beam emitted from the image display element inside the temple 300 enters the coupling area through the light-transmitting hole 101. Obviously, the second snap-fit ​​positioning structure 504 is located inside the light-shielding cover 403 and outside the light-transmitting hole 101.

[0061] During the process of the temple 300 rotating from the open state to the closed state, the sleeve body 4011 rotates in the opposite direction around the hinge axis along with the temple 300. The sleeve body 4011 and the light-shielding positioning cover 402 rotate in opposite directions from the first relative rotation limit position. When the second relative rotation limit position is reached, the sleeve body 4011 drives the light-shielding positioning cover 402 to rotate in the opposite direction around the hinge axis through the positioning connection structure until the temple 300 reaches the closed state.

[0062] A stop block is provided on the side of the frame 100 near the opening of the light-shielding cover 403. When the temple 300 is in the retracted state, the sleeve body 4011 contacts the stop block, which restricts the continued reverse rotation of the sleeve body 4011. More preferably, a stop surface is provided on the front end face of the light-shielding positioning cover 402 near its opening. When the temple 300 is in the retracted state, the stop surface contacts the frame 100, and the frame 100 restricts the continued reverse rotation of the light-shielding positioning cover 402 through the stop surface.

[0063] In some preferred embodiments, when the temple 300 is in the open state, the front end face of the temple 300 is located within the light-transmitting hole 101, thereby bringing the image display element of the temple 300 closer to the waveguide lens 200. This requires the aperture of the light-transmitting hole 101 to be larger than the outer diameter of the front end of the temple 300 so that the rotation of the temple 300 around the hinge axis is not interfered with. Similarly, the axial length of the portion of the front end of the temple 300 extending beyond the sleeve body 4011 is determined to not interfere with the rotation of the temple 300 around the hinge axis, including but not limited to not affecting the first relative rotation limit position and the second relative rotation limit position between the sleeve body 4011 and the light-shielding positioning cover 402, not affecting the engagement of the first snap-fit ​​positioning structure 503 and the second snap-fit ​​positioning structure 504, and not affecting the temple 300 reaching the closed state.

[0064] Optionally, the first positioning connection structure includes an arc-shaped guide groove 5011 disposed on the side wall of the upper side of the light-shielding positioning cover 402 and a connecting post 5021 disposed on the upper support leg 4012. The center of the arc-shaped guide groove 5011 is located on the axis of the first hinge shaft 404. The width of the arc-shaped guide groove 5011 matches the outer diameter of the connecting post 5021. The connecting post 5021 is slidably disposed in the arc-shaped guide groove 5011. When the temple sleeve 401 rotates bidirectionally relative to the light-shielding positioning cover 402 around the hinge shaft, the connecting post 5021 slides bidirectionally along the arc-shaped guide groove 5011 within the arc-shaped guide groove 5011.

[0065] Optionally, the second positioning connection structure includes an arc-shaped guide groove 5012 disposed on the side wall of the lower side of the light-shielding positioning cover 402 and a connecting post 5022 disposed on the lower support leg 4012. The center of the arc-shaped guide groove 5012 is located on the axis of the second hinge shaft. The width of the arc-shaped guide groove 5012 matches the outer diameter of the connecting post 5022. The connecting post 5022 is slidably disposed in the arc-shaped guide groove 5012. When the temple sleeve 401 rotates bidirectionally relative to the light-shielding positioning cover 402 around the hinge shaft, the connecting post 5022 slides bidirectionally along the arc-shaped guide groove 5012 within the arc-shaped guide groove 5012.

[0066] Optionally, the first snap-fit ​​positioning structure 503 is a snap-fit ​​groove provided on the front end face of the light-shielding positioning cover 402, and the second snap-fit ​​positioning structure 504 is a snap-fit ​​protrusion provided on the frame 100 that corresponds to and cooperates with the snap-fit ​​groove.

[0067] Optionally, in order to reduce the friction between the light-shielding positioning cover 402 and the light-shielding cover 403 and the temple sleeve 401 when the light-shielding positioning cover 402 rotates, and to facilitate the opening and closing of the temple 300, the light-shielding positioning cover 402 is preferably made of wear-resistant lubricating material, such as POM or PTFE.

[0068] The advantage of this application lies in the fact that, by setting up a linked temple sleeve 401, a light-shielding positioning cover 402, and a light-shielding cover 403 serving as the mounting base for the hinge axis, it achieves the opening and bending of the temple 300, similar to traditional eyeglasses, while minimizing the size of the components. Furthermore, it provides precise and stable positioning while preventing light leakage, ensuring the stability and reliability of the display effect. Simultaneously, the light-shielding cover 403 and the light-shielding positioning cover 402 form a protective shell for housing the front image display element of the temple 300, providing protection for the image display element regardless of the temple 300's position.

[0069] Combination Figure 3 , Figure 5 , Figure 9As shown, in some preferred embodiments, the frame 100 is provided with a first groove 102 for accommodating cables, and the inner wall of the sleeve body 4011 is provided with a second groove 4013 for cables to pass through. The second groove 4013 extends in a direction parallel to the axis of the sleeve body 4011 and penetrates the sleeve body 4011. The frame 100 is also provided with a wire hole 103 that penetrates the frame 100 in the front-back direction and connects to the first groove 102. The second groove 4013 and the wire hole 103 are both located between the two legs 4012 of the temple sleeve 401. The two legs 4012 form a gap for cables to pass through. The cable in the first groove 102 passes through the wire hole 103, the gap between the two legs 4012, and the second groove 4013 before entering the interior of the temple 300.

[0070] The cable is used to connect the electronic components inside the two temples 300, and / or to connect the electronic components inside the temples 300 with the electronic components inside the frame 100.

[0071] The second groove 4013 and the wire hole 103 are both located between the two legs 4012, meaning that the second groove 4013 is located directly behind the gap formed between the two legs 4012, and the wire hole 103 is located directly in front of the gap formed between the two legs 4012.

[0072] By setting the cable threading hole 103, the interval between the two legs 4012, and the second groove 4013, a spatial channel for accommodating the cable is formed. During the opening or closing of the temple 300, this spatial channel can provide a certain amount of space for the cable, allowing the cable to bend at large angles without being completely flush with the temple 300. This effectively avoids problems such as fatigue, breakage, or poor internal contact caused by frequent bending, improves the reliability and durability of the product, and enhances the user experience.

[0073] It should be noted that the above embodiments are illustrative of this application and not limiting of it, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The words “comprising” or “including” do not exclude the presence of elements or steps not listed in the claims. The words “a” or “an” preceding an element do not exclude the presence of a plurality of such elements. The use of the words first, second, and third, etc., does not indicate any order and these words can be interpreted as names.

[0074] All features disclosed in this specification, except for mutually exclusive features, can be combined in any way.

[0075] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0076] This application is not limited to the specific embodiments described above. This application extends to any new features or combinations disclosed in this specification, as well as any new steps or combinations of any new methods or processes disclosed.

Claims

1. An AR glasses structure, characterized in that, The frame includes a waveguide lens inside, and a temple on each side of the frame. The side of the temple relative to the frame is considered the rear side, and the extension plane of the waveguide lens is considered the vertical plane perpendicular to the front-rear direction. The front ends of both temples are connected to the frame via positioning connectors. The positioning connector includes a temple sleeve, a light-shielding positioning cover, and a light-shielding cover. Both the light-shielding positioning cover and the light-shielding cover are C-shaped sleeves with an opening on one side. The sunshade extends roughly along the front-to-back direction, with its opening located on the side furthest from the outer edge of the frame on either side. The front end of the sunshade is fixedly connected to the frame. The light-shielding positioning cover is installed inside the light-shielding cover, and the opening of the light-shielding positioning cover is on the same side as the opening of the light-shielding cover. The upper sidewall of the light-shielding positioning cover opening is hinged to the upper sidewall of the light-shielding cover opening via a first hinge axis, and the lower sidewall of the light-shielding positioning cover opening is hinged to the lower sidewall of the light-shielding cover opening via a second hinge axis. The first hinge axis and the second hinge axis are coaxially arranged and extend approximately in the vertical direction. The light-shielding positioning cover rotates relative to the light-shielding cover around the first hinge axis and the second hinge axis. The temple sleeve includes a sleeve body for fixing the front end of the temple, the front end of the temple passing through the sleeve body and extending beyond the front end face of the sleeve body. The front end of the sleeve body has two legs extending forward along the axial direction of the sleeve body. The two legs are respectively located on the upper and lower sides of the sleeve body in a vertical direction. The upper leg is hinged to the first hinge axis, and the lower leg is hinged to the second hinge axis. The part of the front end of the temple that extends beyond the sleeve body extends into the light-shielding positioning cover. A positioning connection structure is provided between the support leg and the light-shielding positioning cover. The positioning connection structure ensures that when the sleeve body and the light-shielding positioning cover rotate relative to each other around the hinge axis, there is a relative rotation limit position during the rotation process in different rotation directions. After reaching the relative rotation limit position, the sleeve body drives the light-shielding positioning cover to rotate through the positioning connection structure.

2. The AR glasses structure as described in claim 1, characterized in that, The positioning connection structure described includes a first positioning connection structure between the upper support leg and the upper side wall of the light-shielding positioning cover, and a second positioning connection structure between the lower support leg and the lower side wall of the light-shielding positioning cover. The first positioning connection structure and the second positioning connection structure work synchronously and in coordination, so that when the sleeve body and the light-shielding positioning cover rotate relative to each other around the first hinge axis and the second hinge axis in both directions, they have a relative rotation limit position during the rotation process in different rotation directions.

3. The AR glasses structure as described in claim 1, characterized in that, Image display elements are provided at the front of both the left and right temples. The image display elements emit image light forward along the extension direction of the temples. Waveguide lenses are used to guide the image light emitted by the image display elements and the external ambient light into the human eye. The area of ​​the waveguide lenses used to receive the image light emitted by the image display elements is the coupling area.

4. The AR glasses structure as described in claim 3, characterized in that, The frame has a light-transmitting hole at the coupling area of ​​the waveguide lens to expose the coupling area. The light-transmitting hole is located within the area surrounded by the light-shielding shield. When the light-shielding positioning shield is rotated to be coaxial with the light-shielding shield, the light-transmitting hole is located within the area surrounded by the light-shielding positioning shield.

5. The AR glasses structure as described in claim 1, characterized in that, Both the light-shielding positioning cover and the light-shielding cover have C-shaped cross sections when cut at any position by a plane perpendicular to their axis.

6. The AR glasses structure as described in claim 1, characterized in that, When the temples are open, the sleeve body and the light-blocking positioning shield are at the first relative rotation limit position. When the temples are closed, the sleeve body and the light-blocking positioning shield are at the second relative rotation limit position.

7. The AR glasses structure as described in claim 1, characterized in that, The front end face of the light-shielding positioning cover is provided with a first snap-fit ​​positioning structure, and the frame is provided with a second snap-fit ​​positioning structure that cooperates with the first snap-fit ​​positioning structure for positioning. When the light-shielding positioning cover rotates around the hinge axis in the positive direction until its axial extension direction is perpendicular to the extension plane of the waveguide lens on its front side, the front end face of the light-shielding positioning cover is in close contact with the frame, and the first snap-fit ​​positioning structure and the second snap-fit ​​positioning structure cooperate to snap together.

8. An AR glasses structure as claimed in claim 7, wherein, The first snap-fit ​​positioning structure is a snap-fit ​​groove provided on the front end face of the light-shielding positioning cover, and the second snap-fit ​​positioning structure is a snap-fit ​​protrusion provided on the frame that corresponds to and cooperates with the snap-fit ​​groove.

9. The AR glasses structure of claim 1, wherein, A stop block is provided on the side of the frame near the opening of the sunshade. When the temple is in the retracted state, the sleeve body contacts the stop block, and the stop block restricts the sleeve body from continuing to rotate in the opposite direction.

10. The AR glasses structure as described in claim 2, characterized in that, The first positioning connection structure includes an arc-shaped guide groove on the side wall of the upper side of the light-shielding positioning cover and a connecting post on the upper support leg. The center of the arc-shaped guide groove is located on the axis of the first hinge shaft. The width of the arc-shaped guide groove matches the outer diameter of the connecting post. The connecting post is slidably disposed in the arc-shaped guide groove. When the temple sleeve rotates bidirectionally relative to the light-shielding positioning cover around the hinge shaft, the connecting post slides bidirectionally along the arc-shaped guide groove within the arc-shaped guide groove.

11. An AR glasses structure as described in claim 2 or 10, characterized in that, The second positioning connection structure includes an arc-shaped guide groove on the side wall of the lower side of the light-shielding positioning cover and a connecting post on the lower support leg. The center of the arc-shaped guide groove is located on the axis of the second hinge shaft. The width of the arc-shaped guide groove matches the outer diameter of the connecting post. The connecting post is slidably disposed in the arc-shaped guide groove. When the temple sleeve rotates bidirectionally relative to the light-shielding positioning cover around the hinge shaft, the connecting post slides bidirectionally along the arc-shaped guide groove within the arc-shaped guide groove.

12. The AR glasses structure as described in claim 1, characterized in that, The frame has a first groove for accommodating cables, and the inner wall of the sleeve body has a second groove for cables to pass through. The second groove extends in a direction parallel to the axis of the sleeve body and passes through the sleeve body. The frame also has a through hole that passes through the frame in the front-to-back direction and connects to the first groove. The two legs form a gap for cables to pass through. The cable placed in the first groove passes through the through hole, the gap between the two legs, and enters the second groove.

13. The AR glasses structure as described in claim 12, characterized in that, The cable is used to connect electronic components inside the two temples, and / or to connect electronic components inside the temples to electronic components inside the frame.

14. An AR glasses structure as described in claim 12 or 13, characterized in that, Both the second groove and the thread hole are located between the two legs of the temple sleeve. The second groove and the thread hole being located between the two legs means that the second groove is located directly behind the gap formed between the two legs, and the thread hole is located directly in front of the gap formed between the two legs.

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