Intelligent glasses

Abstract

The invention provides intelligent glasses which comprise a glasses frame and lenses, the glasses frame comprises a glasses frame and glasses legs, the lenses are installed on the glasses frame, and the intelligent glasses further comprise at least one optical assembly installed on the glasses frame. Each optical assembly comprises a light source and a cylindrical lens, the light source is used for emitting a first light beam to the cylindrical lens, the first light beam forms a second light beam after passing through the cylindrical lens, and the second light beam is a linear light beam which is propagated towards the inner side of the mirror frame along the first direction, converged in the second direction and diverged in the third direction. Wherein the first direction, the second direction and the third direction are mutually perpendicular in pairs, and the first direction is parallel to the thickness direction of the lens. According to the intelligent glasses provided by the embodiment of the invention, light weight and convenience of a shooting effect and a product form can be considered.

Description

Technical Field

[0001] This application relates to the field of terminal devices, and in particular to a type of smart glasses. Background Technology

[0002] Smart glasses are near-eye display devices with independent operating systems, capable of interacting with the wearer through gestures, voice, and eye movements. With technological advancements and iterations, the functions of smart glasses are becoming increasingly sophisticated, with more and more smart glasses products incorporating photography capabilities. While the camera is the medium for taking photos, the camera's field of view (FOV) often doesn't perfectly match the wearer's. Specifically, the camera's FOV determines the range of angles it can capture, i.e., the area of ​​the image it can photograph, while the wearer's FOV is the field of vision of their eyes. Generally, the wearer's FOV is smaller than the camera's, and given the wearer's eye movement, while the camera is mounted within the frame and its FOV is relatively fixed, the mismatch becomes even more pronounced. Therefore, the framing, angle, and subject selection of images captured by smart glasses often differ significantly from the wearer's expectations, greatly diminishing the practicality of the smart glasses' photography function and severely impacting the user's photography experience.

[0003] In AR (augmented reality) glasses, a virtual image can be displayed through a projection device, allowing the wearer to obtain information such as the shooting range and angle in real time during the photo-taking process, and thus make adjustments accordingly. However, projection devices have long optical paths and complex structures, which limits their application to bulky products like AR glasses. They cannot maintain the slim and lightweight form of optical glasses, resulting in poor convenience and making them unsuitable for everyday wear.

[0004] Therefore, existing smart glasses technologies cannot simultaneously achieve both high-quality shooting and lightweight, convenient product design. Summary of the Invention

[0005] The smart glasses provided in this application embodiment solve the problem that existing smart glasses cannot simultaneously achieve good shooting results and lightweight and convenient product form.

[0006] This application provides a smart glasses, including a frame and lenses. The frame includes a lens frame and temples, and the lenses are mounted on the lens frame. The smart glasses also include at least one optical component mounted on the lens frame.

[0007] Each optical component includes a light source and a cylindrical lens. The light source emits a first light beam toward the cylindrical lens. After passing through the cylindrical lens, the first light beam forms a second light beam. The second light beam is a linear beam that propagates in a first direction toward the inside of the lens frame, converges in a second direction, and diverges upwards in a third direction. The first direction, the second direction, and the third direction are all perpendicular to each other, and the first direction is parallel to the thickness direction of the lens.

[0008] The smart glasses provided in this application embodiment have lenses through which the wearer can see normally, and can be worn as optical glasses in daily life. The smart glasses also include an optical component. The light source of the optical component emits a first beam of light towards a cylindrical lens. The first beam is refracted by the cylindrical lens to form a second beam of light. The second beam of light propagates along a first direction toward the inside of the frame, that is, toward the wearer's eye, and forms an image on the wearer's retina. The second beam of light is a linear beam that converges in a second direction and diverges in a third direction. Both the second and third directions are perpendicular to the first direction. Alternatively, it can be understood that the second beam of light seen by the wearer is a line extending along a third direction.

[0009] On the one hand, optical components allow the wearer to see lines, which can serve as a kind of cue. For example, optical components can be combined with a camera module. The field of view of the camera can be calculated based on the parameters and position of the camera module. Then, the lines formed by the second beam of the optical components can be designed on the framing boundary of the camera to simulate the framing range of the camera. The wearer can then observe the shooting range and angle of the camera in real time during the shooting process, and make adjustments to the shooting angle, framing range, and subject to achieve the desired shooting effect.

[0010] On the other hand, the optical components have a simple structure, and the light source and cylindrical lens can be made smaller, so they can be easily installed in the frame or other locations. They can also be hidden in the appearance of the smart glasses without increasing the thickness or size of the smart glasses, thus maintaining the shape of the optical glasses and allowing for normal wear and use in daily life, ensuring both practicality and convenience.

[0011] Therefore, the smart glasses provided in this application embodiment can balance shooting effect and lightweight and convenient product form.

[0012] In one possible implementation, the cylindrical lens includes a flat surface and a convex surface disposed opposite each other in a first direction, with the light source disposed on the side of the flat surface away from the convex surface. The light beam emitted by the light source can pass through the cylindrical lens and be shaped into a linear beam.

[0013] In one possible implementation, the lens frame is provided with a mounting cavity, and each optical component is mounted in the mounting cavity of the lens frame. In a first direction, the light source is located on the side of the cylindrical lens away from the temple. Furthermore, the end of the mounting cavity facing the light source is closed, and the end of the mounting cavity facing the cylindrical lens is provided with an opening.

[0014] By adopting the above solution, the optical components are placed inside the mounting cavity of the frame. This not only utilizes the space inside the frame but also achieves a concealed effect on the appearance of the smart glasses, without affecting the shape of the optical glasses. The end of the mounting cavity facing the light source is closed, so the optical components are not visible from the front of the smart glasses, resulting in a more aesthetically pleasing design. An opening is provided at the end of the mounting cavity facing the cylindrical lens, i.e., an opening is provided inside the frame, allowing a second light beam to escape.

[0015] In one possible implementation, the optical component further includes a filter structure positioned on the side of the cylindrical lens away from the light source in the first direction, and used to filter stray light in the second beam. Filtering out stray light and astigmatism in the second beam before it is directed at the wearer's eye allows for clearer lines to be seen.

[0016] In one possible implementation, the filtering structure is a reticle or a reticle aperture. Both the reticle and the reticle aperture can filter stray light and astigmatism, thereby improving the imaging quality of the second beam.

[0017] In one possible implementation, when the filter structure is a reticle, the reticle is located on the inner side of the lens frame; when the lens frame has a mounting cavity with an opening at the end facing the cylindrical lens, the reticle is reused as an opening. Designing the opening as a reticle allows the second beam to be filtered simultaneously, further simplifying the structure.

[0018] In one possible implementation, the frame includes a lens mounting frame that is annular and surrounds a lens mounting hole, within which the lens is mounted. At least one optical component includes multiple optical components spaced circumferentially within the lens mounting frame. This arrangement of multiple optical components in a ring shape facilitates obtaining a complete shooting viewfinder.

[0019] In one possible implementation, the lens mounting frame includes four side frames joined end-to-end, forming a lens mounting hole. Multiple optical components include four optical components, each corresponding to one of the four side frames, and each optical component is mounted on its respective side frame.

[0020] In one possible implementation, each optical component is positioned at the center of the frame along its length. The second beam of light perceived by the human eye is longer, resulting in a more complete viewfinder.

[0021] In one possible implementation, the smart glasses also include a camera module, with the second beam of the optical components corresponding to the framing boundary of the camera module. This simulates the framing range of a camera, allowing the wearer to observe the camera's shooting range and angle in real time during shooting, and thus make adjustments to the shooting angle, framing range, and subject to achieve the desired shooting effect.

[0022] In one possible implementation, the smart glasses also include an augmented reality component, which comprises an optical engine and a waveguide structure. The waveguide structure is used to receive, deflect, and emit light from the optical engine. The waveguide structure is correspondingly positioned on the upper half of the lens.

[0023] The above solution combines augmented reality components with optical components to provide complementary information, allowing the wearer to obtain more comprehensive shooting information. The waveguide structure is positioned on the upper half of the lens. The waveguide structure covers a small area on the lens, and the optical engine is also small, resulting in a smaller overall size of the augmented reality components. This minimizes the impact on the lightweight design of the smart glasses, helping to maintain their slim and lightweight form, making them easy to wear in daily life.

[0024] In one possible implementation, the waveguide structure includes a waveguide substrate, and coupling units, relay units, and coupling units disposed on the waveguide substrate. The coupling units and relay units are arranged in the height direction of the lens, and the relay units and coupling units are arranged in the width direction of the lens. The coupling units receive light from the optomechanical system and couple the light into the waveguide substrate for total internal reflection propagation. The relay units receive light emitted from the coupling units and extend the light in the height direction of the lens. The coupling units receive light emitted from the relay units and extend the light in the width direction of the lens before emitting it towards the inside of the lens frame.

[0025] In one possible implementation, the optical engine is mounted inside the lens frame, and the coupling unit of the waveguide structure is located inside the lens frame. Both the optical engine and the coupling unit can be hidden inside the lens frame, facilitating docking, reducing the size of the augmented reality components, and reducing the area covered by the waveguide structure on the lens.

[0026] In one possible implementation, the waveguide structure is detachably connected to the lens frame for easy replacement and maintenance. Furthermore, users can selectively install or remove the waveguide structure to meet their usage needs.

[0027] This application also provides a smart glasses system, including a frame and lenses. The frame includes a lens housing and temples, and the lenses are mounted on the lens housing. The smart glasses also include an augmented reality component, which includes an optical engine and a waveguide structure. The waveguide structure receives, deflects, and emits light from the optical engine. The waveguide structure is mounted on the lens housing and is correspondingly positioned on the upper half of the lenses.

[0028] Using the above solution, the augmented reality component can display shooting information, assisting users in adjusting shooting position and posture to obtain ideal shooting results. The waveguide structure is correspondingly disposed on the upper half of the lens, and its coverage area on the lens is small. The optical engine is also small, resulting in a small overall size of the augmented reality component. This does not affect the lightweight design of the smart glasses, making it easy to maintain the slim and lightweight form of the optical glasses and convenient for everyday wear. Therefore, the smart glasses provided in this application embodiment can balance shooting effect with lightweight and convenient product form.

[0029] In one possible implementation, the waveguide structure includes a waveguide substrate, and coupling units, relay units, and coupling units disposed on the waveguide substrate. The coupling units and relay units are arranged in the height direction of the lens, and the relay units and coupling units are arranged in the width direction of the lens.

[0030] The coupling unit is used to receive the light from the optomechanical system and couple the light into the waveguide substrate for total internal reflection propagation;

[0031] The relay unit is used to receive the light emitted from the coupling unit and extend the light in the height direction of the lens;

[0032] The output unit is used to receive the light emitted by the relay unit and extend the light in the width direction of the lens before emitting it towards the inside of the frame.

[0033] In one possible implementation, the optomechanical unit is mounted inside the lens frame, and the coupling unit of the waveguide structure is located inside the lens frame.

[0034] Using the above approach, both the optical engine and the coupling unit can be hidden inside the lens frame, facilitating docking, reducing the size of the augmented reality components, and reducing the area covered by the waveguide structure on the lens. Attached Figure Description

[0035] Figure 1 This is a three-dimensional structural diagram of the first embodiment of the smart glasses according to this application;

[0036] Figure 2 This is a three-dimensional structural schematic diagram of another angle of the first embodiment of the smart glasses of this application;

[0037] Figure 3 A schematic diagram illustrating a scenario where smart glasses are used to take photos;

[0038] Figure 4a This is an illustration of an ideal shooting scene;

[0039] Figure 4b This is an illustration of the actual captured footage;

[0040] Figure 5 This is a schematic diagram of the structure of an optical component in a reference design;

[0041] Figure 6 This is a three-dimensional structural diagram of the optical components in the smart glasses according to an embodiment of this application;

[0042] Figure 7a This is a side view of the optical components in the smart glasses according to an embodiment of this application.

[0043] Figure 7b This is a top view of the optical components in the smart glasses according to an embodiment of this application;

[0044] Figure 8 This is a simulated light intensity distribution diagram of the first and second beams of the smart glasses in the embodiments of this application;

[0045] Figures 9a to 9d This is a schematic diagram illustrating the shooting and framing effect of the smart glasses in an embodiment of this application;

[0046] Figure 10a This is a three-dimensional structural diagram of the second embodiment of the smart glasses in this application;

[0047] Figure 10b This is a schematic diagram illustrating the shooting and framing effect of the smart glasses according to the second embodiment of this application.

[0048] Figure 11 This is a partial cross-sectional view of the frame of the smart glasses in an embodiment of this application;

[0049] Figure 12a This is a three-dimensional structural schematic diagram of another embodiment of the optical components in the smart glasses of this application;

[0050] Figure 12b for Figure 2 A magnified view of part A in the middle;

[0051] Figure 13 This is a three-dimensional structural diagram of the third embodiment of the smart glasses according to this application;

[0052] Figure 14 This is a schematic diagram of the augmented reality component in the third embodiment of the smart glasses according to the present application.

[0053] Figure 15 This is a schematic diagram of the planar structure of the waveguide structure in the third embodiment of the smart glasses of this application;

[0054] Figure 16 This is a schematic diagram illustrating the shooting and framing effect of the third embodiment of the smart glasses in this application.

[0055] Figure 17 This is a three-dimensional structural diagram of the smart glasses according to an embodiment of this application;

[0056] Figure 18 This is a schematic diagram illustrating the shooting and framing effect of the smart glasses in an embodiment of this application.

[0057] Explanation of reference numerals in the attached figures:

[0058] Reference Design:

[0059] 100', Optical assembly; 1', Screen; 2', Lens; 3', Polarization selector; 4', Semi-reflective translucent lens; 5', Quarter wave plate.

[0060] This application:

[0061] 100. Smart glasses;

[0062] 1. Lens; 2. Frame; 21. Temples;

[0063] 22. Frame; 22a. Inner surface;

[0064] 221. Lens mounting frame; 222. Lens mounting hole; 223. Mounting cavity; 224. Opening;

[0065] 225. Top border; 226. Bottom border; 227. Left border; 228. Right border;

[0066] 3. Optical components; 31. First optical component; 32. Second optical component; 33. Third optical component; 34. Fourth optical component;

[0067] 35. Light source; 36. Cylindrical lens; 361. Plane; 362. Convex surface; 37. Filter structure;

[0068] 4. Augmented Reality Components; 41. Optical Engine; 411. Display Screen;

[0069] 412. Projection device; 4121. First prism; 4122. Second prism; 4123. Projection lens assembly;

[0070] 42. Waveguide structure; 421. Waveguide substrate; 422. Coupler unit; 423. Relay unit; 424. Coupler output unit;

[0071] 51. First beam; 52. Second beam; 53. Camera module;

[0072] L, first direction; M, second direction; N, third direction;

[0073] Z: Lens thickness direction; X: Lens width direction; Y: Lens height direction;

[0074] 200. Smart glasses; 61. Lens; 62. Frame; 621. Temples;

[0075] 622, Frame; 6221, Lens mounting frame; 6222, Lens mounting hole

[0076] 7. Augmented Reality Components; 71. Optical Engine;

[0077] 72. Waveguide structure; 721. Waveguide substrate; 722. Coupler unit; 723. Relay unit; 724. Coupler output unit;

[0078] X0, the width direction of the lens; Y0, the height direction of the lens. Detailed Implementation

[0079] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Although the description of this application will be presented in conjunction with some embodiments, this does not mean that the features of this application are limited to this embodiment. On the contrary, the purpose of describing the application in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of this application. To provide a thorough understanding of this application, many specific details will be included in the following description. This application may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this application, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0080] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0081] The following explains the terms that may appear in the embodiments of this application.

[0082] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0083] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0084] The limitations mentioned in the embodiments of this application, such as parallel, perpendicular, and identical (e.g., identical length, identical width, etc.), are all relative to the current technological level, and not absolute and strict definitions in a mathematical sense. There may be a deviation within a predetermined angular range between two mutually parallel or perpendicular radiators. In one embodiment, the predetermined angle is 10°, and for example, the deviation may be within the range of ±5°.

[0085] The terms collinear, coaxial, coplanar, symmetrical (e.g., axially symmetrical, or centrally symmetrical), parallel, perpendicular, and identical (e.g., identical length, identical width, etc.) mentioned in the embodiments of this application are all relative to the current technological level, and are not absolutely strict definitions in a mathematical sense. There may be a predetermined angle (e.g., ±5°, ±10°) of deviation between two mutually parallel or perpendicular structures.

[0086] In the description of this application, it should be understood that "electrical connection" can be understood as physical contact and electrical conduction between components; it can also be understood as the form in which different components in a circuit structure are connected through physical lines that can transmit electrical signals, such as copper foil or wires on a printed circuit board (PCB).

[0087] Relative / Relative Setting: A relative setting with B can refer to A and B being face-to-face. For example, when two components are set relative to each other, these two components overlap in at least a portion of their area along a certain direction.

[0088] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0089] This application provides a smart glasses embodiment. The specific type of smart glasses is not limited; for example, it can be smart audio glasses, mobile phone accessory glasses, smart assistant glasses, smart glasses with augmented reality (AR), virtual reality (VR), or mixed reality (MR) technologies, etc.

[0090] Please see Figures 1 to 2 , Figure 1 This is a three-dimensional structural diagram of the first embodiment of the smart glasses according to this application; Figure 2 This is a three-dimensional structural diagram of another angle of the first embodiment of the smart glasses of this application.

[0091] like Figures 1 to 2 As shown, the smart glasses 100 includes a frame 2 and lenses 1. The frame 2 is used to construct the overall shape of the smart glasses 100, and to install and accommodate various optical and electronic devices. The lenses 1 are optical devices mounted on the frame 22, and are light-transmitting, allowing the wearer to see through the lenses 1. The lenses 1 may have functions such as vision correction and blue light protection, but this application does not limit this.

[0092] It should be noted that this application does not limit the specific structure of the frame 2, the number of lenses 1, their mounting position on the frame 2, or the mounting method. The following uses the form of optical glasses as an example to illustrate the possible structures of the frame 2 and lenses 1.

[0093] like Figure 1 , Figure 2 As shown, in one possible implementation, the frame 2 includes a frame 22 and temples 21, with lenses 1 mounted on the frame 22. The temples 21 may include two temples, left and right, respectively connected to the left and right sides of the frame 22. The connection between the temples 21 and the frame 22 can be a rotatable connection or a fixed connection; this application does not limit this. It is understood that the left and right directions described herein are relative to the wearer. When the user wears the smart glasses 100 on their head, the left and right lenses can be positioned on the wearer's left and right ears respectively, with the frame 22 and lenses 1 located in front of the user. In one possible implementation, the smart glasses 100 includes two lenses 1, and the frame 22 includes two lens mounting frames 221. The lens mounting frames 221 are annular and form lens mounting holes 222, with the two lenses 1 respectively mounted within the two lens mounting holes 222. When the user wears the smart glasses 100 on their head, the two lenses 1 correspond to the wearer's left and right eyes respectively.

[0094] It should be noted that the above structure is only an example. In some possible implementations, the smart glasses 100 may only have one lens 1, or only one temple 21. The lens mounting frame 221 may also be a non-circular structure (for example, in half-rim glasses, the lens mounting frame 221 only has the upper half). This application does not limit this.

[0095] The smart glasses 100 may also include various electronic components and circuit boards. The number of circuit boards can be one or more, such as a main board and a sub-board. Each electronic component can be integrated onto the circuit board or can be set up separately and then connected to the circuit board or other components via wired, wireless, or other means. For example, electronic components may include a processor, battery, speaker, horn, antenna system, display screen, optical engine, camera module, etc., with no specific limitations. The battery serves as the power source for the smart glasses 100, and its specific number and location are not limited. For example, there may be two batteries, located on the left and right temples 21 respectively. A charging interface can be provided on the temple 21 corresponding to the battery for charging. The processor can be used to analyze signals, process data, generate program instructions, and control other electronic components to perform operations, such as controlling the operation of the speaker, horn, optical engine, and camera module. A processor may include one or more processing units, such as a central processing unit (CPU), an application processor (AP), a modem processing unit, a graphics processing unit (GPU), an image signal processor (ISP), a video processing unit (VPU), etc. It may also include a controller, memory, a video codec, a digital signal processor (DSP), etc.

[0096] The speaker and horn are the voice devices of the smart glasses 100. The speaker is used to play sound, and the horn is used to pick up sound. The wearer can interact with the smart glasses 100 through voice devices. The number of speakers and horns is also unlimited; for example, one speaker and one horn can be installed on the left and right temples 21 respectively. The antenna system is used to transmit and receive wireless signals to realize the communication function. The antenna system may include antennas for frequency bands such as WIFI (Wireless Fidelity), Bluetooth, 5G (the 5th Generation Mobile Communication Technology), and 4G (the 4th Generation Mobile Communication Technology), and this application does not limit this.

[0097] In one possible implementation, the smart glasses 100 may also include an Inertial Measurement Unit (IMU). An IMU is a sensor used to detect and measure acceleration and rotational motion, and may include accelerometers, angular velocity meters (or gyroscopes), etc. Accelerometers can detect the magnitude of acceleration of the smart glasses 100 in various directions and can also be used to identify changes in the orientation of the smart glasses 100. Gyroscopes can be used to determine the motion state of the smart glasses 100. Installing an IMU allows for the detection of the wearer's movements and postures and triggers corresponding commands, enriching the forms of human-computer interaction. Furthermore, the smart glasses 100 may also include various sensors such as biosensors, temperature sensors, and humidity sensors to comprehensively track and detect the user's body data; this application does not impose any limitations on this.

[0098] like Figure 1 As shown, in one possible implementation, the smart glasses 100 further includes a camera module 53, which includes a camera, allowing the wearer to capture images and record videos. The specific number of camera modules is not limited; it can be one, two, or more. The installation position of each camera module 53 is not limited, for example, in the middle, side, or temple 21 of the frame 22. The attached diagram is for illustrative purposes only.

[0099] Those skilled in the art will understand that the field of view (FOV) of the camera often does not perfectly match the field of view of the wearer of the smart glasses 100. To describe this issue in more detail, the concept of field of view is explained below with reference to the accompanying drawings.

[0100] Please see Figures 3 to 4b , Figure 3 A schematic diagram illustrating a scenario where smart glasses are used to take photos; Figure 4a This is an illustration of an ideal shooting scene; Figure 4b This is an illustration of the actual footage.

[0101] The field of view (FAV) is the angular range of objects that an observer can see from a specific position and direction. A camera's FAV determines the angular range of the scene it can capture, i.e., the range of the image it can display. For the wearer of the smart glasses 100, the FAV is the field of vision of their eyes. The FAV can include a horizontal FAV and a vertical FAV. The horizontal FAV refers to the maximum angular range that can be seen extending left or right from directly in front of the observer, while the vertical FAV refers to the maximum angular range that can be seen extending upwards or downwards from directly in front of the observer. Figure 3 The field of view angles shown are all horizontal.

[0102] like Figure 3As shown, the horizontal field of view of the camera in this scene is α, and the scene within this angle range can be captured by the camera. Generally speaking, the wearer's field of view is smaller than the camera's field of view. For example, when the wearer looks straight ahead, their horizontal field of view is β, which is smaller than α, meaning the area the wearer sees is smaller than the camera's field of view. Furthermore, the wearer's eyes move; for example, when they look to the side, the horizontal field of view is λ. It can be seen that angle λ is even less compatible with α.

[0103] like Figure 4a As shown in the illustration, in one scenario, the wearer envisions the following shot: the person is centered in the frame, and the entire frame is not tilted relative to the horizontal plane, i.e., the tilt angle is 0°. However, due to the mismatch between the camera's field of view and the wearer's field of view, and potential issues such as the camera being worn askew or the wearer's head being tilted, the actual shot captured by the camera may look like this. Figure 4b As shown: the figure is off-center from the center of the image, and the entire image is tilted relative to the horizontal plane.

[0104] It should be noted that, Figure 4a and Figure 4b The frame border and tilt information shown in the image are not actually present; they are only used to illustrate the shooting situation. In real-world scenarios, smart glasses often cannot display information such as the viewfinder and tilt angle during shooting. Wearers rely solely on their intuition to take pictures, and the final image's framing, angle, and selected subject often differ significantly from the wearer's expectations. This greatly reduces the practicality of the smart glasses' photography function and severely impacts the user's shooting experience.

[0105] Please see Figure 5 , Figure 5 This is a schematic diagram of the structure of an optical component in a reference design.

[0106] like Figure 5 As shown, in one reference design, an optical component 100' can be used to display a virtual image, allowing the wearer to obtain information such as the shooting range and angle in real time during the photo-taking process, thus enabling them to make adjustments themselves. Specifically, the optical component 100' is a projection device, including a screen 1', a lens 2', a polarization selector 3', a semi-reflective translucent mirror 4', and a quarter-wave plate 5'. The semi-reflective translucent mirror 4' is a lens capable of both reflection and transmission. Figure 5 As shown, external light can directly pass through the semi-reflective mirror 4' and enter the human eye; this light path is represented by a solid arrow. Screen 1' is used to display virtual image information; the light emitted from screen 1' enters the human eye after multiple reflections and refractions, and this light path is represented by a dashed arrow.

[0107] For example, the specific path for displaying the virtual image on screen 1' can be as follows: Light emitted from screen 1' first passes through lens 2', which can adjust the image quality (i.e., imaging quality). Light emitted from lens 2' reaches the polarizer, where the polarization mode of the light is changed by polarization selector 3'. After being polarized, the light enters the semi-reflective mirror 4', where it undergoes a second reflection before returning to the polarizer. A quarter-wave plate 5' is located between polarization selector 3' and the semi-reflective mirror 4'. After passing through the quarter-wave plate 5' twice, the polarization state changes, allowing light re-entering polarization selector 3' to pass through and propagate to the human eye, thus allowing the image from screen 1' to enter the human eye.

[0108] This device displays shooting range and angle information on a screen, which is then projected into the wearer's eye to form a viewfinder. During shooting, the wearer can compare and adjust the viewfinder with the actual scene in front to achieve the desired effect. While this method improves the shooting performance of smart glasses, the optical component 100' has a complex structure, requiring multiple folds in the optical path, resulting in a large and heavy overall size, which is not conducive to making smart glasses thinner and lighter. Furthermore, limited by the size of the optical component 100', smart glasses can only be designed as bulky products like AR glasses, and cannot adopt a design similar to... Figure 1 , Figure 2 The thin and lightweight design of the optical glasses shown makes them inconvenient to wear in daily life, resulting in poor convenience. It is evident that this technology cannot simultaneously achieve both high-quality photography and a lightweight, convenient product design.

[0109] To address the aforementioned issues, this application employs a miniaturized optical component to simulate a viewfinder, which not only ensures shooting quality but also meets the requirements for a slimmer and more convenient product form.

[0110] Please see Figures 6 to 8 , Figure 6 This is a three-dimensional structural diagram of the optical components in the smart glasses according to an embodiment of this application; Figure 7a This is a side view of the optical components in the smart glasses according to an embodiment of this application. Figure 7b This is a top view of the optical components in the smart glasses according to an embodiment of this application; Figure 8 This is a simulated light intensity distribution diagram of the first and second beams of the smart glasses in the embodiments of this application.

[0111] like Figures 6 to 7bAs shown, the smart glasses 100 also includes at least one optical component 3 mounted on the frame 22. Each optical component 3 includes a light source 35 and a cylindrical lens 36. The light source 35 emits a first light beam 51 towards the cylindrical lens 36. The first light beam 51 forms a second light beam 52 after passing through the cylindrical lens 36. The second light beam 52 is a linear beam that propagates along a first direction L toward the inside of the frame 22, converges in a second direction M, and diverges in a third direction N. The first direction L, the second direction M, and the third direction N are all perpendicular to each other, and the first direction L is parallel to the thickness direction Z of the lens.

[0112] The inner side of the frame 22 can be understood as the side where the wearer's eyes are located, that is... Figure 1 , Figure 2 The side where the temple 21 is located. Conversely, the side furthest from the wearer's eyes is the outer side of the frame 22. The thickness direction Z of the lens can be understood as the front-to-back direction of the lens 1, that is, the direction in which the inner and outer sides of the frame 22 are positioned opposite each other. The lens 1 also has a height direction and a width direction. The height direction Y of the lens is the vertical direction, or it can be understood as the direction in which the wearer moves their eyes up and down. The width direction X of the lens is the horizontal direction, or it can be understood as the direction in which the wearer moves their eyes left and right.

[0113] It should be noted that the first direction L, the second direction M, and the third direction N mentioned above are only directions within the optical component 3 system. The second direction M and the third direction N on the smart glasses 100 may be the same or different for different optical components 3, depending on the installation method of each optical component 3. For example, Figure 2 The smart glasses 100 shown are equipped with four optical components 3. The second direction M and the third direction N of the first optical component 31 and the third optical component 33 are the same. The second direction M and the third direction N of the second optical component 32 and the fourth optical component 34 are also the same. However, the second direction M and the third direction N of the first optical component 31 and the second optical component 32 are different. It can be understood that, regardless of which optical component 3 is used, its first direction L is parallel to the thickness direction Z of the lens, ensuring that the second light beam 52 propagates along the thickness direction Z of the lens towards the inside of the frame 22, thereby entering the wearer's eyes.

[0114] A cylindrical lens 36 is a special type of lens with a cylindrical surface, capable of beam shaping or focusing. The cylindrical lens 36 can focus and stretch incident light rays onto a line; the first beam 51 generated by the light source 35, after passing through the cylindrical lens 36, becomes a one-dimensional beam that diverges in one direction and converges in another. Specifically, as... Figure 7a and Figure 7b As shown, the first beam 51 may include light rays emitted in various directions, which converge toward the focal point in the second direction M after passing through the cylindrical lens 36 (e.g., Figure 7a ), and diverges to N from a third party (e.g. Figure 7b Therefore, the second beam 52 is a linear beam extending laterally along the third direction N. More intuitively, as... Figure 8 As shown, Figure 8 The top image shows the light intensity distribution of the first beam 51 obtained from the simulation, and the bottom image shows the light intensity distribution of the second beam 52 obtained from the simulation. It can be seen that the first beam 51 is compressed in the second direction M and stretched in the third direction N to form the second beam 52.

[0115] The smart glasses 100 provided in this application embodiment has a lens 1, through which the wearer can see normally and wear the smart glasses 100 as optical glasses in daily life. The smart glasses 100 also includes an optical component 3. The light source 35 of the optical component 3 emits a first beam 51 towards a cylindrical lens 36. The first beam 51 is refracted by the cylindrical lens 36 to form a second beam 52. The second beam 52 propagates along a first direction L towards the inside of the frame 22, that is, towards the wearer's eye, and forms an image on the wearer's retina. The second beam 52 is a linear beam that converges in a second direction M and diverges in a third direction N. Both the second direction M and the third direction N are perpendicular to the first direction L. Alternatively, it can be understood that the second beam 52 seen by the wearer is a line extending along the third direction N (e.g., Figure 9a (The lines shown in the diagram).

[0116] On the one hand, the optical component 3 allows the wearer to see lines, which can serve as a kind of prompt information. For example, the optical component 3 can be used in conjunction with the camera module 53. The field of view of the camera can be calculated based on the parameters and position of the camera module 53. Then, the lines formed by the second beam 52 of the optical component 3 can be designed on the framing boundary line of the camera to simulate the framing range of the camera. The wearer can then observe the shooting range and angle of the camera in real time during the shooting process, and make adjustments to the shooting angle, framing range, and subject to obtain the ideal shooting effect.

[0117] On the other hand, the optical component 3 has a simple structure, and both the light source 35 and the cylindrical lens 36 can be made relatively small, allowing them to be easily installed in positions such as the frame 22. They can also be hidden within the appearance of the smart glasses 100, without increasing the thickness or size of the smart glasses 100. This maintains the shape of optical glasses, allowing for normal wear and use in daily life, ensuring both practicality and convenience. Therefore, the smart glasses 100 provided in this embodiment of the application can balance shooting effect with lightweight and convenient product form.

[0118] In one possible implementation, the second beam 52 of the optical component 3 corresponds to the viewfinder boundary of the camera module 53. Alternatively, it can be understood that the second beam 52 seen by the wearer is located on the viewfinder boundary line (edge ​​of the field of view) of the camera module 53. With this structure, the second beam 52 can not only simulate the viewfinder boundary line but also be used as a horizontal or vertical line, because the viewfinder of the camera module is typically a square (e.g., ...). Figure 9a The framing boundary line typically extends horizontally or vertically. During shooting, the wearer can check the framing range in real time and adjust the shooting position and angle to improve the shooting effect.

[0119] Besides improving the shooting effect and portability of the smart glasses 100, the smart glasses 100 of this application embodiment also has other advantages. For example, compared to Figure 5 The optical components in this embodiment have a simple optical path, greatly simplifying the structure and reducing the number of parts, thus lowering manufacturing costs. Furthermore, the optical component 3 has lower requirements for the light source 35, significantly reducing power consumption and improving its operating efficiency.

[0120] It should be noted that this application does not limit the type of light source 35. In one possible implementation, the light source 35 can be an LED (Light Emitting Diode). LEDs have low power consumption, low cost, and small size, which can reduce the space occupied by the optical components 3. The light source 35 can also be a fluorescent lamp, an incandescent lamp, a gas discharge light source 35, etc. The first beam 51 emitted by the light source 35 can be visible light of any color, such as red, green, yellow, etc., and this application does not limit this.

[0121] It should be noted that this application does not impose any limitations on the specific structure of the cylindrical lens 36. For example... Figures 6 to 7b As shown, in one possible implementation, the cylindrical lens 36 includes a plane 361 and a convex surface 362 disposed opposite to each other in a first direction L. The convex surface 362 is a cylindrical surface, and the light source 35 is disposed on the side of the plane 361 away from the convex surface 362. With this structure, the light beam emitted by the light source 35 can pass through the cylindrical lens 36 and be shaped into a linear beam. It should be noted that this application does not limit the length, width, thickness, focal position, curvature of the convex surface 362, or the distance between the light source 35 and the cylindrical lens 36; these parameters should be designed according to actual conditions.

[0122] It should be noted that the specific number of optical components 3 and the installation position of each optical component 3 are not limited. For example... Figure 2As shown, in one possible implementation, the smart glasses 100 includes multiple optical components 3, which are spaced apart circumferentially on the lens mounting frame 221. The multiple optical components 3 allow the wearer to see multiple lines, each serving as a cue, such as the viewfinder boundary line, horizontal line, or vertical line of the camera module 53. Compared to a single line, multiple lines enrich the information and enhance the user experience. It is understandable that since the viewfinder boundary line of the camera is circular, arranging the multiple optical components 3 in a circular pattern facilitates obtaining a complete view.

[0123] It should be noted that optical components 3 can be installed on both lens mounting frames 221 of the smart glasses 100, or only on one lens mounting frame 221; this application does not impose any restrictions on this. Figure 2 As shown, in one possible implementation, the optical component 3 is set on only one lens mounting frame 221 (which can be the lens mounting frame 221 corresponding to the left eye or the lens mounting frame 221 corresponding to the right eye, the figure is only for illustration), which can reduce the number of optical components 3 and save costs.

[0124] Please see Figures 9a to 9d , Figures 9a to 9d This is a schematic diagram illustrating the shooting and framing effect of the smart glasses in an embodiment of this application.

[0125] like Figure 1 , Figure 2 As shown, in one possible implementation, the lens mounting frame 221 includes four side frames joined end to end, forming a lens mounting hole 222. The plurality of optical components 3 includes four optical components 3, which are correspondingly arranged with the four side frames. Each optical component 3 is mounted on its corresponding side frame. The imaging effect of this structure during shooting is as follows: Figure 9a As shown.

[0126] Specifically, the four borders may include: an upper border 225, a lower border 226, a left border 227, and a right border 228. The four optical components 3 include a first optical component 31, a second optical component 32, a third optical component 33, and a fourth optical component 34. The first optical component 31 is disposed on the upper border 225, with its third direction N corresponding to the width direction X of the lens. The second beam 52 seen by the human eye is a line extending along the width direction X of the lens, and this line constitutes part or all of the upper framing boundary of the camera module 53. The second optical component 32 is disposed on the left border 227, with its third direction N corresponding to the height direction Y of the lens. The second beam 52 seen by the human eye is a line extending along the height direction Y of the lens, and this line constitutes part or all of the left framing boundary of the camera module 53. The third optical component 33 is disposed on the lower border 226, with its third direction N corresponding to the width direction X of the lens. The second beam 52 seen by the human eye is a line extending along the width direction X of the lens, and this line constitutes part or all of the lower framing boundary of the camera module 53. The fourth optical component 34 is located on the right side frame 228, and its third direction N corresponds to the height direction Y of the lens. The second beam 52 seen by the human eye is a line extending along the height direction Y of the lens, and this line constitutes part or all of the right side view boundary of the camera module 53.

[0127] Finally, the second beam 52 of the four optical components 3 surrounds the formation Figure 9a The square viewfinder is shown. Furthermore, the upper and lower second beams 52 can be used as horizontal lines, and the left and right second beams 52 can be used as vertical lines, helping the wearer to calibrate the tilt angle of the shooting image.

[0128] like Figure 9b As shown, in one possible implementation, the optical components 3 can be placed only on the upper edge 225 and the lower edge 226 to indicate only the upper and lower framing boundaries. For example... Figure 9c As shown, in one possible implementation, the optical component 3 can be set only on the left border 227 and the right border 228, only indicating the left and right framing boundaries. For example... Figure 9d As shown, it is also possible to set only one optical component 3, for example, to set only the optical component 3 on the upper edge 225, only indicating the upper viewfinder boundary. This application does not limit this.

[0129] It should be noted that the specific location of optical component 3 on the frame is not limited. For example... Figure 2 , Figures 9a to 9dAs shown, in one possible implementation, each optical component 3 is positioned at the center of its respective frame along its length direction. The center refers to the middle position of the frame. For example, if the length direction of the upper frame 225 and the lower frame 226 is the width direction X of the lens, then the first optical component 31 is positioned at the center of the upper frame 225 along the width direction X, and the third optical component 33 is positioned at the center of the lower frame 226 along the width direction X. If the length direction of the left frame 227 and the right frame 228 is the height direction Y of the lens, then the second optical component 32 is positioned at the center of the left frame 227 along the height direction Y, and the fourth optical component 34 is positioned at the center of the right frame 228 along the height direction Y. Figures 9a to 9d As shown, with this structure, the second beam 52 seen by the human eye is longer, and the viewfinder is more complete.

[0130] Please see Figures 10a to 10b , Figure 10a This is a three-dimensional structural diagram of the second embodiment of the smart glasses in this application; Figure 10b This is a schematic diagram illustrating the shooting and framing effect of the second embodiment of the smart glasses in this application.

[0131] like Figure 10a As shown, in one possible implementation, each optical component 3 can also be positioned at the edge of its corresponding frame, for example, at the corner of the lens 1. Figure 10b As shown, this structure allows for a more personalized viewfinder design. The number and position of the optical components 3 can be set according to the desired shape of the viewfinder, and will not be listed in detail in this application.

[0132] Please see Figure 11 , Figure 11 This is a partial cross-sectional view of the frame of the smart glasses in an embodiment of this application.

[0133] Those skilled in the art will understand that the mounting method of the optical component 3 on the frame 22 is not limited. For example... Figure 11As shown, in one possible implementation, the frame 22 is provided with a mounting cavity 223, and each optical component 3 is mounted inside the mounting cavity 223 of the frame 22. In the first direction L, the light source 35 is located on the side of the cylindrical lens 36 away from the temple 21, and the end of the mounting cavity 223 facing the light source 35 is closed, while the end of the mounting cavity 223 facing the cylindrical lens 36 has an opening 224. Placing the optical components 3 inside the mounting cavity 223 of the frame 22 not only utilizes the space inside the frame 22, but also achieves a concealed effect on the appearance of the smart glasses 100, without affecting the shape of the optical glasses. The light source 35 is close to the outside of the frame 22, and the end of the mounting cavity 223 facing the light source 35 is closed, so the optical components 3 cannot be seen from the front of the smart glasses 100 (i.e., the outside of the frame 22), which is more aesthetically pleasing. The end of the mounting cavity 223 facing the cylindrical lens 36 has an opening 224, that is, an opening 224 is provided on the inside of the frame 22, for the second light to be emitted.

[0134] In one possible implementation, the cylindrical lens 36 is completely located within the mounting cavity 223, and the second beam 52 exits through the opening 224, which serves as the exit point for the second beam 52. In another possible implementation, the cylindrical lens 36 may also be inserted through the opening 224, such that a portion of the cylindrical lens 36 is located within the mounting cavity 223, and another portion is located outside the mounting cavity 223. In this case, the second beam 52 can exit directly from the cylindrical lens 36 without passing through the opening 224. In some possible implementations, the cylindrical lens 36 may also be entirely located outside the mounting cavity 223. In this case, the light source 35 is located within the mounting cavity 223, and the second beam 52 exits directly from the cylindrical lens 36 without passing through the opening 224. The first beam 51 emitted by the light source 35 needs to pass through the opening 224 to enter the cylindrical lens 36. The optical component 3 can also be located in other positions, such as on the inner surface 22a of the frame 22, or at the connection between the frame 22 and the temple 21. This application does not impose any limitations on this.

[0135] Please see Figures 12a to 12b , Figure 12a This is a three-dimensional structural schematic diagram of another embodiment of the optical components in the smart glasses of this application; Figure 12b for Figure 2 A magnified view of part A in the middle.

[0136] like Figure 12aAs shown, in one possible implementation, the optical component 3 may further include a filter structure 37. The filter structure 37 is positioned on the side of the cylindrical lens 36 away from the light source 35 in the first direction L, and is used to filter stray light in the second beam 52. By setting the filter structure 37 to filter stray light and astigmatism in the second beam 52 before it is directed to the human eye, the lines seen by the wearer can be clearer. The specific form of the filter structure 37 is not limited; for example, it can be a reticle or a reticle aperture. A reticle is a thin sheet made of glass or quartz with various markings and scale lines engraved on it. A reticle aperture is a special small hole or perforation structure. Both the reticle and the reticle aperture can filter stray light and astigmatism, improving the imaging quality of the second beam 52.

[0137] like Figure 12b As shown, in one possible implementation, when the filter structure 37 is a reticle, the reticle is located on the inner side 22a of the frame 22, which is the side of the frame 22 closest to the inside, i.e., the side facing the wearer's eyes. With this structure, the cylindrical lens 36 is entirely located within the mounting cavity 223.

[0138] like Figure 12b As shown, in one possible implementation, the reticle is reused as the opening 224 of the mounting cavity 223, or it can be understood that the opening 224 is designed as a reticle, so that the second beam 52 is filtered while being emitted, further simplifying the structure. In another possible implementation, a reticle can also be used as a filter structure and embedded in the opening 224, so that the second beam 52 is filtered while passing through the reticle.

[0139] Please see Figures 13 to 16 , Figure 13 This is a three-dimensional structural diagram of the third embodiment of the smart glasses according to this application; Figure 14 This is a schematic diagram of the augmented reality component in the third embodiment of the smart glasses according to the present application. Figure 15 This is a schematic diagram of the planar structure of the waveguide structure in the third embodiment of the smart glasses of this application; Figure 16 This is a schematic diagram illustrating the shooting and framing effect of the third embodiment of the smart glasses in this application.

[0140] like Figure 13 , Figure 14 As shown, in one possible implementation, the smart glasses 100 also includes an augmented reality component 4, which includes an optical engine 41 and a waveguide structure 42. The waveguide structure 42 is used to receive, deflect and emit light from the optical engine 41, and is correspondingly disposed on the upper half of the lens 1.

[0141] The optomechanical system 41 includes a display screen 411 and a waveguide structure 42, which is a dielectric layer with a high refractive index, enabling light to propagate through total internal reflection. Light from the display screen 411 enters the waveguide structure 42 through the inlet and exits through the outlet of the waveguide structure 42. The direction of the light exiting is towards the inside of the frame 22, i.e., towards the wearer's eyes, allowing the wearer to see a virtual image on the display screen 411.

[0142] like Figure 16 As shown, in an example scenario, information such as the image tilt angle can be displayed on the screen 411 of the optical engine 41 to assist the user in adjusting the shooting position and posture. Combining the augmented reality component 4 with the optical component 3 described above, the two prompting methods complement each other, allowing the wearer to obtain more comprehensive shooting information during shooting. It should be noted that when using the photo function, the type of information displayed by the augmented reality component 4 is not limited; for example, it may include image tilt angle, framing range, focus point prompts (e.g., ...). Figure 16 The information displayed in the center of the image (such as the image center information) and the countdown timer can be designed according to actual needs.

[0143] Furthermore, the waveguide structure 42 is correspondingly disposed on the upper half of the lens 1, which is the portion seen when the wearer rotates their eyes upward. With this structure, the area covered by the waveguide structure 42 on the lens 1 is smaller, and the optical engine 41 is also smaller. For example, a miniaturized optical engine 41 and a miniaturized waveguide structure 42 can be used, resulting in a smaller overall size of the augmented reality component 4, so as not to affect the lightweight design of the smart glasses 100. For example, Figure 13 The smart glasses 100, which incorporates augmented reality components 4, still maintains the slim and lightweight form of optical glasses, making them easy to wear in daily life.

[0144] It should be noted that the number of augmented reality components 4 is unlimited; one augmented reality component 4 can be installed at each of the corresponding left and right lens positions 1, or only one augmented reality component 4 can be installed. For example... Figure 13 As shown, in one possible implementation, the smart glasses 100 has only one augmented reality component 4, and the augmented reality component 4 and the optical component 3 correspond to different lenses 1. By staggering the two devices, each device has sufficient installation space in its respective area, and the concentration of components avoids tilting the center of gravity of the smart glasses 100. In some possible implementations, the augmented reality component 4 and the optical component 3 may also be correspondingly located in the same area of ​​the lens 1, or both areas of the two lenses 1 may have the augmented reality component 4 and the optical component 3; this application does not impose any limitations on this.

[0145] It should be noted that the specific structure, installation method, and installation position of the optical engine 41 and the waveguide structure 42 are not limited. In one possible implementation, the optical engine 41 is installed inside the frame 2. Alternatively, it can be understood that the optical engine 41 is hidden inside the frame 2, completely concealed from view. Specifically, it can be located inside the frame 22, inside the temple 21, or partially inside the frame 22 and partially inside the temple 21, etc. This application does not impose any limitations on this. For example, Figure 13 , Figure 14 In the scene shown, the optical engine 41 is hidden on the upper side frame 225 of the lens mounting frame 221.

[0146] The waveguide structure 42 can be an independent sheet structure or it can be directly fabricated on the lens 1; this application does not limit this. In one possible implementation, the waveguide structure 42 is an independent sheet structure mounted on the lens frame 22. Specifically, the waveguide structure 42 can be mounted on the lens mounting frame 221. In another possible implementation, the waveguide structure 42 is detachably connected to the lens frame 22, for example, detachably connected to the lens mounting frame 221. For example, a groove can be provided on the surface of the lens mounting frame 221 facing the lens mounting hole 222, and the edge portion of the waveguide structure 42 can be inserted into or pulled out of the groove. Making the waveguide structure 42 a detachable structure facilitates replacement and maintenance. Furthermore, users can selectively install or remove the waveguide structure 42 to meet the usage needs of different scenarios.

[0147] It should be noted that the specific structure and type of waveguide structure 42 are not limited. For example... Figure 14 , Figure 15 As shown, in one possible implementation, the waveguide structure 42 includes a waveguide substrate 421, and coupling units 422, relay units 423, and coupling units 424 disposed on the waveguide substrate 421. The coupling units 422 and relay units 423 are arranged in the height direction Y of the lens, and the relay units 423 and coupling units 424 are arranged in the width direction X of the lens. The coupling unit 422 serves as the entrance to the waveguide substrate 421, receiving light from the optomechanical system 41 and coupling the light into the waveguide substrate 421 for total internal reflection propagation. The relay unit 423 receives light emitted from the coupling unit 422 and extends the light in the height direction Y of the lens. The coupling unit 424 serves as the exit of the waveguide structure 42, receiving light emitted from the relay unit 423 and extending the light in the width direction X of the lens before emitting it towards the inside of the lens frame 22. It should be noted that the coupling unit 422, the relay unit 423 and the coupling unit 424 can be of any shape, such as rectangle, trapezoid, rhombus, circle, etc. This application does not impose any restrictions on them, and the attached drawings are only for illustration.

[0148] It will be understood by those skilled in the art that Figure 14 , Figure 15 Arrows indicate the direction of light. This light-guiding diagram differs from the ray path diagram; it does not represent the actual propagation path of the light, but rather illustrates the overall direction of light travel during total internal reflection. In other words, the arrows in the diagram show the overall direction of light travel, but in reality, the light undergoes more complex refraction and reflection within the waveguide structure 42.

[0149] In one possible implementation, the waveguide substrate 421 is a diffractive waveguide substrate 421, and the coupling unit 422, relay unit 423, and coupling unit 424 are all diffraction gratings. Light diffraction refers to the phenomenon where light, in its propagation path, encounters opaque or transparent obstacles or small holes (slits), deviates from straight-line propagation and bypasses the obstacle. A diffraction grating is an optical device composed of a large number of parallel slits of equal width and spacing, capable of changing the propagation direction of light incident on the grating through diffraction. Figure 14 , Figure 15 In the schematic light guide, the propagation path of light in the diffractive waveguide substrate 421 and inside each diffraction grating is omitted, but the light propagates on the waveguide substrate 421 in the order of coupling unit 422, relay unit 423 and coupling unit 424.

[0150] Those skilled in the art will understand that in traditional optical imaging systems, the image typically has only one "exit," called the exit pupil. For example, assuming a beam of light with a diameter of 4 millimeters enters the waveguide substrate 421 as the "entry pupil," and if the waveguide substrate 421 only transmits the light without magnifying or reducing the image, then the "exit pupil" also produces a 4-millimeter beam. In this case, the range of movement of the image visible from the center of the human pupil is only 4 millimeters. By setting a diffraction grating on the surface of the waveguide substrate 421, multiple copies of the exit pupil can be made in the horizontal and / or vertical directions. Each exit pupil outputs the same image, increasing the range of movement of the image visible from the center of the human pupil. This allows the wearer to see the image even when their eyes move extensively, a phenomenon known as exit pupil expansion.

[0151] The relay unit 423, as described above, extends the light in the height direction Y of the lens, that is, it expands the exit pupil vertically (in the height direction Y of the lens) so that the user can always see the image when moving their eyes up and down. The coupling unit 424 extends the light in the width direction X of the lens, that is, it expands the exit pupil horizontally (in the width direction X of the lens) so that the user can always see the image when moving their eyes left and right.

[0152] like Figure 14 , Figure 15As shown, those skilled in the art will understand that the coupling unit 422 and the relay unit 423 are arranged in the height direction Y of the lens, and the relay unit 423 and the coupling unit 424 are arranged in the width direction X of the lens. This layout, combined with the design of the internal markings of the diffraction gratings of each unit, enables the coupling of light rays, coupling of light rays, and the aforementioned horizontal and vertical exit pupil expansion processes. However, the layout of the units in the waveguide structure 42 is not limited to this and can be designed according to actual conditions. For example, horizontal exit pupil expansion can be achieved through the relay unit 423, and vertical exit pupil expansion through the coupling unit 424; in this case, the positions of each unit need to be adjusted accordingly. Alternatively, the relay unit 423 can be omitted, and horizontal or vertical exit pupil expansion can be achieved solely through the coupling unit 424; in this case, the positions of the coupling unit 422 and the coupling unit 424 need to be adjusted accordingly. Alternatively, exit pupil expansion can be omitted, and light rays can be emitted solely through the coupling unit 424; this application does not limit this approach.

[0153] like Figure 13 , Figure 15 As shown in the figure, in the structure shown, the coupling unit 422 is located in the edge region of the waveguide structure 42 (the region within the dashed line in the figure), and the area occupied by the coupling unit 422 in the waveguide structure 42 is small, so it can be hidden inside the lens frame 22, which facilitates docking with the optomechanical unit 41 and reduces the area covered by the waveguide structure 42 on the lens 1. For example, Figure 13 The coupling unit 422 of the middle waveguide structure 42 is located inside the mirror frame 2 and cannot be seen from the outside.

[0154] Those skilled in the art will understand that the waveguide structure 42 can be disposed on the inner side of the lens 1 or on the outer side of the lens 1, and this application does not limit this. For example Figure 13 The waveguide structure 42 shown is disposed on the outer side of the lens 1, and the light coupled out by the coupling unit 424 passes through the lens 1 before entering the wearer's eye. In an alternative implementation, the waveguide structure 42 is disposed on the inner side of the lens 1, and the light coupled out by the coupling unit 424 can directly enter the wearer's eye, which can reduce light distortion and improve image quality.

[0155] It should be noted that the specific structure of the optical engine 41 is not limited. For example... Figure 14 As shown, in one possible display method, the optical engine 41 includes a display screen 411 and a projection device 412. The display screen 411, also known as an image source, displays an image that determines the view seen by the wearer. The display screen 411 can be a self-emissive active device, such as a light-emitting diode panel, or a liquid crystal display screen 411 that requires external illumination 35, or a digital micromirror array and laser beam scanner based on microelectromechanical systems (MEMS) technology, etc. This application does not limit its specific type.

[0156] In one possible implementation, the projection device 412 may include a first prism 4121, a second prism 4122, and a projection lens group 4123, with the projection lens group 4123 positioned between the two prisms. The first prism 4121 and the second prism 4122 function as light path folding elements. Specifically, the first prism 4121 refracts light emitted from the display screen 411 into the projection lens group 4123, while the second prism 4122 receives the outgoing light from the projection lens group 4123 and refracts it towards the coupling grating. The projection lens group 4123 is an image quality adapter for the projected image, used to improve image quality. The projection lens group 4123 may include one or more lenses; the accompanying drawings are for illustrative purposes only.

[0157] Those skilled in the art will understand that the types, quantities, and positional relationships of the devices within the optomechanical unit 41 should be designed according to the actual situation, and the above structure is only an example.

[0158] Please see Figures 17 to 18 , Figure 17 This is a three-dimensional structural diagram of the smart glasses according to an embodiment of this application; Figure 18 This is a schematic diagram illustrating the shooting and framing effect of the smart glasses in an embodiment of this application.

[0159] like Figure 17 As shown, this application embodiment provides a smart glasses 200. The specific type of smart glasses 200 is not limited; for example, it can be smart audio glasses, mobile phone accessory glasses, smart assistant glasses, smart glasses with augmented reality (AR), virtual reality (VR), or mixed reality (MR) technologies, etc.

[0160] The smart glasses 200 includes a frame 62 and lenses 61. The frame 62 is used to construct the overall shape of the smart glasses 200 and to install and accommodate various optical and electronic components. The lenses 61 are optical components mounted on the frame 62, and they are light-transmitting, allowing the wearer to see through them. This application does not limit the specific structure of the frame 62, the number of lenses 61, their mounting positions on the frame 62, or the connection method. In one possible implementation, the frame 62 includes a frame 622 and temples 621, with the lenses 61 mounted on the frame 622. The temples 621 may include, for example, two temples 621, one on the left and one on the right, respectively connected to the left and right sides of the frame 622. The connection between the temples 621 and the frame 622 can be a rotatable connection or a fixed connection. In one possible implementation, the smart glasses 200 includes two lenses 61, and the frame 622 includes two lens mounting frames 6221. The lens mounting frames 6221 are annular and surround to form lens mounting holes 6222. The two lenses 61 are respectively mounted in the two lens mounting holes 6222.

[0161] The smart glasses 200 may also include various electronic components, such as processors, batteries, speakers, horns, antenna systems, displays, optical engines, camera modules, etc., without specific limitations. In one possible implementation, the smart glasses 200 may also include a camera module, which includes a camera lens, allowing the wearer to capture images and record videos.

[0162] like Figure 17 As shown, the smart glasses 200 also includes an augmented reality component 7, which includes an optical engine 71. Figure 17 The lens 61 is hidden within the frame 62 and the waveguide structure 72 is used to receive, deflect and emit light from the optical engine 71. The waveguide structure 72 is correspondingly disposed on the upper half of the lens 61.

[0163] The optical engine 71 includes a display screen, and the waveguide structure 72 is a dielectric layer with a high refractive index, enabling total internal reflection of light within it. Light from the display screen is projected into the waveguide structure 72 via a projection component, and then exits from the waveguide structure 72 in a direction towards the inside of the frame 622, i.e., towards the wearer's eyes, allowing the wearer to see a virtual image on the display screen. Figure 18 As shown in the example scenario, information such as the image tilt angle can be displayed on the screen of the optical engine 71 to assist the user in adjusting the shooting position and posture. The type of information displayed by the augmented reality component 7 is not limited; it can include, for example, image tilt angle, framing range, focus point cues (such as the image center information shown in Figure 7), and a photo countdown, and can be designed according to actual needs. The wearer can adjust the shooting method based on this information to obtain the desired shooting effect.

[0164] Furthermore, the waveguide structure 72 is correspondingly disposed on the upper half of the lens 61, which is the portion seen when the wearer rotates their eyes upward. With this structure, the area covered by the waveguide structure 72 on the lens 61 is smaller, and the optical engine 71 is also smaller. For example, a miniaturized optical engine 71 and a miniaturized waveguide structure 72 can be used, resulting in a smaller overall size of the augmented reality component 7 without affecting the lightweight design of the smart glasses 200. For example, Figure 17 The smart glasses 200, with the augmented reality component 7 installed, still maintains the slim and lightweight form of optical glasses, making it easy to wear in daily life. Therefore, the smart glasses 200 provided in this application embodiment can balance shooting effect with lightweight design and convenience.

[0165] It should be noted that the number of augmented reality components 7 is unlimited. One augmented reality component 7 can be installed at each of the two corresponding left and right lens positions 61, or only one augmented reality component 7 can be installed (e.g., Figure 17 ).

[0166] The specific structure, mounting method, and mounting location of the optical engine 71 and the waveguide structure 72 are not limited. In one possible implementation, the optical engine 71 is mounted inside the frame 62. Alternatively, it can be understood that the optical engine 71 is hidden inside the frame 62, completely concealed from view. Specifically, it can be located inside the frame 622, inside the temple 621, or partially inside the frame 622 and partially inside the temple 621, etc. This application does not impose any limitations on these aspects.

[0167] The waveguide structure 72 can be an independent sheet structure or it can be directly fabricated on the lens 61; this application does not limit this. In one possible implementation, the waveguide structure 72 is an independent sheet structure mounted on the lens frame 622. In another possible implementation, the waveguide structure 72 is detachably connected to the lens frame 622, for example, detachably connected to the lens 61 mounting frame, facilitating replacement and maintenance. Furthermore, the user can selectively install or remove the waveguide structure 72 to meet their usage needs.

[0168] It should be noted that the specific structure and type of the waveguide structure 72 are not limited. For example, the waveguide structure 72 may include a waveguide substrate 721, and coupling unit 722 (hidden in the frame 622 in the figure), relay unit 723, and coupling unit 724 disposed on the waveguide substrate 721. The coupling unit 722 is the entrance to the waveguide substrate 721, used to receive light from the optomechanical system 71 and couple the light into the waveguide substrate 721 for total internal reflection propagation. The relay unit 723 is used to receive light emitted from the coupling unit and extend the light along the height direction Y0 of the lens. The coupling unit 724 is the exit of the waveguide structure 72, used to receive light emitted from the relay unit 723 and extend the light along the width direction X0 of the lens before emitting it towards the inside of the frame 622.

[0169] The specific structure of the optical engine 71 is not limited. For example, the optical engine 71 may include a display screen and a projection device. The display screen, also known as an image source, displays an image that determines the view seen by the wearer. The projection device may include, for example, a prism for folding the optical path and a projection lens assembly for improving image quality, etc., which will not be elaborated here.

[0170] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A smart pair of glasses, comprising a frame and lenses, the frame including a lens housing and temples, the lenses being mounted on the lens housing, characterized in that, The smart glasses also include at least one optical component mounted on the frame; Each of the optical components includes a light source and a cylindrical lens. The light source is used to emit a first light beam toward the cylindrical lens. The first light beam forms a second light beam after passing through the cylindrical lens. The second light beam is a linear light beam that propagates in a first direction toward the inside of the lens frame, converges in a second direction, and diverges upwards in a third direction. The first direction, the second direction, and the third direction are mutually perpendicular, and the first direction is parallel to the thickness direction of the lens.

2. The smart glasses as described in claim 1, characterized in that, The cylindrical lens includes a plane and a convex surface disposed opposite each other in the first direction, and the light source is disposed on the side of the plane away from the convex surface.

3. The smart glasses as described in claim 1 or 2, characterized in that, The frame is provided with a mounting cavity, and each optical component is installed in the mounting cavity of the frame. In the first direction, the light source is located on the side of the cylindrical lens away from the temple. The end of the mounting cavity facing the light source is closed, and the end of the mounting cavity facing the cylindrical lens is provided with an opening.

4. The smart glasses as described in any one of claims 1-3, characterized in that, The optical component further includes a filter structure disposed in the first direction on the side of the cylindrical lens away from the light source, and is used to filter stray light in the second beam.

5. The smart glasses as described in claim 4, characterized in that, The filter structure is a reticle or reticle holes.

6. The smart glasses as described in claim 5, characterized in that, When the filter structure is a reticle, the reticle is located on the inner side of the lens frame; when the lens frame has a mounting cavity and the mounting cavity has an opening at one end facing the cylindrical lens, the reticle is reused as the opening.

7. The smart glasses as described in any one of claims 1-6, characterized in that, The frame includes a lens mounting frame, which is annular and surrounds a lens mounting hole, and the lens is mounted in the lens mounting hole. The at least one optical component includes a plurality of optical components, which are arranged at circumferential intervals on the lens mounting frame.

8. The smart glasses as described in claim 7, characterized in that, The lens mounting frame includes four side frames that connect end to end, forming the lens mounting hole; the plurality of optical components includes four optical components, which are correspondingly arranged with the four side frames, and each optical component is mounted on its corresponding side frame.

9. The smart glasses as described in claim 8, characterized in that, Each of the optical components is disposed in the middle of the frame along the length of the frame.

10. The smart glasses as described in any one of claims 1-9, characterized in that, The smart glasses also include a camera module, and the second beam of the optical component corresponds to the framing boundary of the camera module.

11. The smart glasses as described in any one of claims 1-10, characterized in that, The smart glasses also include an augmented reality component, which includes an optical engine and a waveguide structure. The waveguide structure is used to receive, deflect, and emit light from the optical engine. The waveguide structure is correspondingly disposed on the upper half of the lens.

12. The smart glasses as described in claim 11, characterized in that, The waveguide structure includes a waveguide substrate, and coupling-in units, relay units, and coupling-out units disposed on the waveguide substrate. The coupling-in units and the relay units are arranged in the height direction of the lens, and the relay units and the coupling-out units are arranged in the width direction of the lens. The coupling unit is used to receive the light from the optomechanical system and couple the light into the waveguide substrate for total internal reflection propagation; The relay unit is used to receive the light emitted by the coupling unit and extend the light in the height direction of the lens; The coupling unit is used to receive the light emitted by the relay unit and extend the light in the width direction of the lens before emitting it towards the inside of the frame.

13. The smart glasses as described in claim 12, characterized in that, The optomechanism is installed inside the lens frame, and the coupling unit of the waveguide structure is disposed inside the lens frame.

14. The smart glasses as described in any one of claims 11-13, characterized in that, The waveguide structure is detachably connected to the mirror frame.

15. A pair of smart glasses, comprising a frame and lenses, the frame including a lens housing and temples, the lenses being mounted on the lens housing, characterized in that, The smart glasses also include an augmented reality component, which includes an optical engine and a waveguide structure, the waveguide structure being used to receive, deflect, and emit light from the optical engine; The waveguide structure is mounted on the lens frame, and the waveguide structure is correspondingly disposed on the upper half of the lens.

16. The smart glasses as described in claim 15, characterized in that, The waveguide structure includes a waveguide substrate, and coupling-in units, relay units, and coupling-out units disposed on the waveguide substrate. The coupling-in units and the relay units are arranged in the height direction of the lens, and the relay units and the coupling-out units are arranged in the width direction of the lens. The coupling unit is used to receive the light from the optomechanical system and couple the light into the waveguide substrate for total internal reflection propagation; The relay unit is used to receive the light emitted by the coupling unit and extend the light in the height direction of the lens; The coupling unit is used to receive the light emitted by the relay unit and extend the light in the width direction of the lens before emitting it towards the inside of the frame.

17. The smart glasses as described in claim 16, characterized in that, The optomechanism is installed inside the lens frame, and the coupling unit of the waveguide structure is disposed inside the lens frame.

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