Smart glasses

Abstract

This application discloses smart glasses, relating to the technical field of wearable devices. The smart glasses comprise a bracket and a sensing module. The bracket comprises two temples that can be arranged relative to each other along a first direction. The sensing module is disposed on the temples and comprises a moving member, a fixed member, a light source, and a photosensitive element. A first mounting end of the moving member and a second mounting end of the fixed member are spaced relative to each other, the light source is disposed on the first mounting end, and the photosensitive element is disposed on the second mounting end. The side of the moving member remote from the fixed member is adapted to fit the face. The sensing module recognizes facial movements by varying the distance between the first mounting end and the second mounting end.

Description

Technical Field

[0001] The present application belongs to the technical field of wearable devices, and specifically relates to smart glasses. Background Art

[0002] With the rapid development of wearable devices, their applications are becoming more and more extensive. Wearable devices such as glasses, watches, and bracelets are playing an increasingly important role in people's work, life, entertainment, and other aspects.

[0003] Taking smart glasses as an example, they include temples and a display module. The temples are supported above the user's ears, and the display module can be supported by the temples in front of the user's eyes. Smart glasses can also be equipped with a camera located in front of the user's face to capture facial movements, which are used to control the smart glasses to perform different operations. However, adding an additional camera to capture facial movements in the smart glasses will increase the weight of the part of the smart glasses located in front of the user's eyes, making it difficult for users to wear them. Summary of the Invention

[0004] The present application aims to provide a kind of smart glasses, which at least solves the technical problem that the cameras for collecting facial movements in current smart glasses are not conducive to users wearing the smart glasses.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a pair of smart glasses, comprising:

[0007] bracket, including temples;

[0008] A sensing module is provided on the temple, and includes a moving part, a fixed part, a light source, and a photosensitive element. A first mounting end of the moving part and a second mounting end of the fixed part are spaced apart from each other, the light source is provided on the first mounting end, and the photosensitive element is provided on the second mounting end.

[0009] The side of the movable part away from the fixed part is used to fit the face, and the sensing module recognizes facial movements through the change in the distance between the first mounting end and the second mounting end.

[0010] In an embodiment of the present application, a sensing module that can detect and identify facial movements is provided on the temples, so that the smart glasses can perform different operations according to the recognized facial movements, which makes it convenient for users to control the smart glasses and eliminates the need to set up a camera for collecting facial movements; by arranging the sensing module in the temples, the weight of the part of the smart glasses located in front of the user's eyes is reduced, making it easier for users to wear; by arranging relatively spaced movable parts and fixed parts in the sensing module, when the user makes different facial movements, the movable part can move closer to or away from the fixed part, so that the photosensitive element receives the changing light and recognizes the facial movements.

[0011] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0013] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment of the smart glasses according to the present application;

[0014] Figure 2 yes Figure 1 An enlarged structural diagram of part A is shown;

[0015] Figure 3 is a schematic diagram of a partial cross-sectional structure of an embodiment of the smart glasses according to the present application;

[0016] Figure 4 is a schematic diagram of the principle of an embodiment of a sensing module according to the present application;

[0017] Figure 5 2 is a schematic diagram of a partially disassembled structure of an embodiment of the smart glasses according to the present application. DETAILED DESCRIPTION

[0018] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0019] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly refer to one or more of the features. Throughout the description of this application, unless otherwise specified, "plurality" means two or more. Furthermore, "and / or" in the specification and claims refers to at least one of the connected entities, and the character " / " generally indicates an "or" relationship between the connected entities.

[0020] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0022] The following combination Figures 1 to 5 Describe smart glasses according to embodiments of the present application.

[0023] like Figure 1 、 Figure 2 and Figure 3 As shown, an embodiment of the present application provides a smart glasses 100, including a bracket 1 and a sensing module 2, the bracket 1 includes a temple 11; the sensing module 2 is arranged on the temple 11, the sensing module 2 includes a moving part 21, a fixed part 22, a light source 23 and a photosensitive element 24, the first mounting end 211 of the moving part 21 and the second mounting end 221 of the fixed part 22 are arranged along a relative interval, the light source 23 is arranged on the first mounting end 211, and the photosensitive element 24 is arranged on the second mounting end 221; the side of the moving part 21 away from the fixed part 22 is used to fit with the face, and the sensing module 2 recognizes facial movements by changing the distance between the first mounting end 211 and the second mounting end 221.

[0024] In the present application, the smart glasses 100 may be a virtual reality (AR) device, an augmented reality (AR) device, or the like. The number of temples may be two, and the bracket 1 may further include a frame 12, with two temples 11 connected to the ends of the frame 12, respectively. The temples 11 and the frame 12 may be fixedly connected, and the two temples 11 are arranged relative to each other along a second direction X, so that when a user wears the smart glasses 100, the two temples 11 can be placed on the left and right ears of the face along the second direction X, respectively. The temples 11 and the frame 12 can also be rotatably connected to adapt to different head shapes of users. When the smart glasses 100 are in the open state, the two temples 11 are arranged relative to each other along the second direction X, so that when the user wears the smart glasses 100, the two temples 11 can be placed on the user's ears along the second direction X, respectively. When the smart glasses 100 are in the folded state, the two temples 11 and the frame 12 are stacked in sequence, so that the smart glasses 100 take up less space and are convenient for the user to store. The smart glasses 100 may also be provided with functional modules such as a display module 3, a camera module 4, a sound module, a battery module, and a processor. The display module 31 may be based on an optical machine, an LCD screen, an OLED screen, etc. The display module 3 may also be provided on the frame 12. Of course, the frame 12 may not be provided, and the temples 11 may be directly connected to the display module 3 to support the display module 3. The camera module 4 is used to capture images of the environment, and the camera module 4 may be provided on the temples 11. The sound module, the battery module, etc. may all be provided on the temples 11. The processor may be provided on one side of the camera module 4 and electrically connected to each functional module to control the operation of each functional module.

[0025] The sensing module 2 can be arranged at the end of the temple 11 away from the frame 12, so that when the user wears the smart glasses 100, the side of the movable member 21 away from the fixed member 22 can be in contact with the face, that is, when the user wears the smart glasses 100, one side of the movable member 21 is in contact with the user's face. The first mounting end 211 of the movable member 21 and the second mounting end 221 of the fixed member 22 can be arranged relative to each other along the second direction X. When the user's face makes different movements, the facial muscles will drive the first mounting end 211 to move closer to or away from the second mounting end 221, thereby causing the distance between the first mounting end 211 and the second mounting end 221 to change. Then, the light intensity received by the photosensitive element 24 will change, so that the facial movement can be recognized based on the light change and facial movement recognition information can be generated. The smart glasses 100 can perform different operations based on the facial movement recognition information. The operation can specifically control the camera to capture the environment image, control the display module 3 to display different images, adjust the sound volume of the sound module, etc. Those skilled in the art can set the mapping relationship between different facial action recognition information and different operations according to the operations that can be performed by the smart glasses 100.

[0026] A plurality of fixed parts 22 and a plurality of movable parts 21 can be set in a sensing module 2, and the movable parts 21 and the fixed parts 22 correspond to each other in pairs to form sensing units. A sensing module 2 includes multiple sensing units, and the multiple sensing units can be arranged at intervals along the extension direction of the temple 11 to obtain richer facial motion recognition information through the multiple sensing units.

[0027] For example, a user wears smart glasses 100, and the sensing module 2 is located in the temple 11 above the user's left ear. When the user blinks, the first mounting end 211 above the user's left ear moves closer to the second mounting end 221. The photosensitive element 24 receives the light change, thereby generating facial action recognition information of "left eye blink". The smart glasses 100 control the camera module 4 to take pictures based on the facial action recognition information of "left eye blink".

[0028] Based on this, in the above-mentioned smart glasses 100, by setting a sensing module 2 that can detect and identify facial movements on the temple 11, the smart glasses 100 can perform different operations according to the identified facial movements, which is convenient for user control and eliminates the need to set up a camera for collecting facial movements; by setting the sensing module 2 in the temple 11, the weight of the part of the smart glasses 100 located in front of the user's eyes is reduced, making it convenient for the user to wear; by setting a moving part 21 and a fixed part 22 that are relatively spaced apart in the sensing module 2, when the user makes different facial movements, the moving part 21 can approach or move away from the fixed part 22, so that the photosensitive element 24 receives the changing light and generates facial movement recognition information, thereby realizing the recognition of facial movements.

[0029] According to some embodiments of the present application, the sensing module 2 also includes an optical module 25, which is arranged between the light source 23 and the photosensitive element 24. The optical module 25 is used to pass the light emitted by the light source 23 and form an interference pattern on the photosensitive element 24. The photosensitive element 24 is used to sense changes in the interference pattern and generate facial motion recognition information.

[0030] The optical module 25 may include one or more optical structures. The light emitted by the light source 23 passes through the one or more optical structures in the optical module 25 , so that multiple light rays passing through the optical module 25 may interfere and form an interference pattern on the photosensitive element 24 .

[0031] To improve the clarity of the interference pattern, the light source 23 can be an infrared laser or an ultraviolet laser. Those skilled in the art will understand that the interference pattern of light is the result of the light intensity distribution generated when several light waves meet, which is not equal to the sum of the light intensity distributions caused by each light wave individually, resulting in alternating light and dark patterns. When the light source 23 at the first mounting end 211 moves relative to the photosensitive element 24 at the second mounting end 221, the interference pattern changes. This allows the photosensitive element 24 to analyze the changes in light intensity sensed in different areas to determine the movement distance of the first mounting end 211, thereby determining the distance between the first mounting end 211 and the second mounting end 221. This generates different facial motion recognition information, allowing the smart glasses 100 to perform different operations based on the facial motion recognition information.

[0032] In one embodiment, the optical module 25 includes multiple optical films, each of which is disposed on the first mounting end 211 and the second mounting end 221. Specifically, the multiple optical films can be disposed on the first mounting end 211 and the second mounting end 221 as needed to meet different requirements. To reduce the overall footprint of the sensing module 2, the multiple optical films and the light source 23 can be embedded in the movable member 21, while the multiple optical films and the photosensitive element 24 can be embedded in the fixed member 22.

[0033] Please refer to Figure 4 and Figure 5 In one embodiment, the plurality of optical films include a first reflective sheet 251 and a second reflective sheet 252. The first reflective sheet 251 is disposed on the movable member 21, and the second reflective sheet 252 is disposed on the fixed member 22. The first reflective sheet 251 includes a first transmission surface 251b and a first reflection surface 251a that are opposite to each other. The first reflection surface 251a is disposed on a side of the first transmission surface 251b away from the light source 23. The second reflective sheet 252 includes a second transmission surface 252b and a second reflection surface 252a. The second reflection surface 252a is disposed on a side of the second transmission surface 252b away from the photosensitive element 24. The first reflection surface 251a and the second reflection surface 252a are disposed at intervals.

[0034] Light emitted by the light source 23 can first pass through the first transmissive surface 251b and enter the first reflective sheet 251, then pass through the first reflective surface 251a and be emitted toward the second reflective surface 252a of the second reflective sheet 252. Some of the light emitted toward the second reflective surface 252a can be reflected back to the first reflective surface 251a by the second reflective surface 252a, and then reflected back to the second reflective surface 252a by the first reflective surface 251a. This results in multiple reflections between the first reflective surface 251a and the second reflective surface 252a, thereby reflecting the light emitted by the light source 23 into more light in different directions. Some of the light emitted toward the second reflective surface 252a can pass through the second reflective surface 252a and enter the second reflective sheet 252, and then pass through the second transmissive surface 252b to the photosensitive element 24. The light emitted from the second transmissive surface 252b is interference light with a consistent frequency, a constant phase difference, and a consistent vibration direction, thereby generating an interference pattern in the photosensitive element 24.

[0035] The higher the reflectivity of the first reflective surface 251a and the second reflective surface 252a, the more times light is reflected between the first reflective surface 251a and the second reflective surface 252a on average, thereby forming more interference light and having clearer edges in the interference pattern. In one embodiment, the first reflective sheet 251 and the second reflective sheet 252 both comprise glass plates, with a high-reflectivity coating applied to the surfaces of the glass plates to form the first reflective surface 251a and the second reflective surface 252a. Optionally, the reflectivity of the first reflective surface 251a is less than or equal to 90%, and the reflectivity of the second reflective surface 252a is less than or equal to 90%.

[0036] In some embodiments, the first reflective surface 251a and the second reflective surface 252a are arranged in parallel, the length from the first transmissive surface 251b to the first reflective surface 251a is the thickness h1 of the first reflective sheet 251, and the thickness h1 gradually increases along the first direction Y; the length from the second transmissive surface 252b to the second reflective surface 252a is the thickness h2 of the second reflective sheet 252, and the thickness h2 gradually decreases along the first direction Y, and the first direction Y is perpendicular to the direction from the first reflective surface 251a to the second reflective surface 252a.

[0037] The thickness h1 gradually increases along the first direction Y, i.e., the first reflective sheet 251 is wedge-shaped with a larger thickness at one end and a smaller thickness at the other end. The thickness h2 gradually decreases along the first direction Y, i.e., the second reflective sheet 252 is wedge-shaped with a larger thickness at one end and a smaller thickness at the other end. This prevents or reduces interference of the reflected light generated by the first transmission surface 251b and the second transmission surface 252b with the formation of the interference pattern. In one embodiment, the thicker end of the first reflective sheet 251 and the thinner end of the second reflective sheet 252 are arranged opposite each other along the second direction X, and the thinner end of the first reflective sheet 251 and the thicker end of the second reflective sheet 252 are arranged opposite each other along the second direction X.

[0038] In some embodiments, the plurality of optical films further include a collimating lens 26 and a focusing lens 27 . The collimating lens 26 , the first reflective sheet 251 , the second reflective sheet 252 and the focusing lens 27 are sequentially arranged from the movable member 21 to the fixed member 22 .

[0039] The collimating lens 26 can convert the light from the light source 23 into parallel light, thereby facilitating the formation of an interference pattern. The focusing lens 27 is used to converge the light emitted from the second transmissive surface 252b toward the photosensitive element 24, thereby increasing the probability of the light emitted from the second transmissive surface 252b entering the photosensitive element 24.

[0040] In order to further ensure the adjustment function of each optical film on the light path, multiple optical films can be coaxially arranged, that is, multiple optical films are coaxially arranged along the second direction X.

[0041] In some embodiments, the movable part 21 also includes a first connecting end 212, which is arranged opposite to the first mounting end 211, and the fixed part 22 also includes a second connecting end 222, which is arranged opposite to the second mounting end 221, and the second connecting end 222 is connected to the temple 11. The sensing module 2 also includes an insulating part 28, which connects the first connecting end 212 and the second connecting end 222.

[0042] The movable member 21 is connected to the fixed member 22 via the insulating member 28. The movable member 21 and the insulating member 28 can be fixed to the bracket 1 via the fixed member 22. The first mounting end 211 and the second mounting end 221 are spaced apart so that as the user's facial movements change, the facial muscles can push the first mounting end 211 to move while the first connecting end 212 remains relatively stable.

[0043] In some embodiments, the movable member 21 and the fixed member 22 are both plate-shaped. It can be understood that the longer the portion of the movable member 21 that is not connected to the insulating member 28, that is, the longer the length of the first mounting end 211 spaced apart from the second mounting end 221, the greater the range of relative movement of the first mounting end 211 relative to the second mounting end 221.

[0044] In one embodiment, the aforementioned sensing module may be a micro-Fabry Perot cavity sensor.

[0045] The sensing module 2 further includes a circuit board 29, which is fixed to the temple 11. The circuits on the circuit board 29 are respectively connected to the light source 23 and the photosensitive element 24. The movable member 21 and the fixed member 22 may be electrode sheets, so that the light source 23 and the circuit board 29 are electrically connected via the movable member 21, and the photosensitive element 24 and the circuit board 29 are electrically connected via the fixed member 22.

[0046] In some embodiments, there are two temples 11 and two sensing modules 2, each of which is disposed on one temple 11. The fixing member 22 of any sensing module 2 is disposed on a side of the moving member 21 of the sensing module 2 away from the other sensing module 2. Thus, the two sensing modules 2 can sense facial movements of the left and right sides of the user, respectively.

[0047] In some embodiments, the smart glasses 100 further include an optical lens, which is disposed on the bracket 1 , and / or the smart glasses 100 further include a display module 3 , which is disposed on the bracket 1 .

[0048] The temples 11 can be provided on either side of the optical lens. When the user wears the smart glasses 100, the bracket 1 can secure the optical lens in front of the user's glasses so that the user can see through the optical lens. The smart glasses 100 can also include an optical engine that can project the desired display image onto the optical lens, allowing the user to see a combination of virtual and real images.

[0049] When a user wears the smart glasses 100 , the bracket 1 can fix the display module 3 in front of the user's glasses so that the user can view the image displayed on the display module 3 .

[0050] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A pair of smart glasses, characterized in that: include: brackets, including temples; A sensing module is provided on the temple, the sensing module comprising a moving part, a fixed part, a light source and a photosensitive element, wherein a first mounting end of the moving part and a second mounting end of the fixed part are spaced apart from each other, the light source is provided on the first mounting end, and the photosensitive element is provided on the second mounting end; The side of the movable member away from the fixed member is used to fit the face, and the sensing module recognizes facial movements through the change in the distance between the first mounting end and the second mounting end.

2. The smart glasses according to claim 1, wherein: The sensing module also includes an optical module, which is arranged between the light source and the photosensitive element. The optical module is used to transmit the light emitted by the light source and form an interference pattern on the photosensitive element. The photosensitive element is used to sense changes in the interference pattern and generate facial action recognition information.

3. The smart glasses according to claim 2, wherein: The optical module includes a plurality of optical films, and the plurality of optical films are respectively arranged on the first mounting end and the second mounting end.

4. The smart glasses according to claim 3, wherein: The multiple optical films include a first reflective sheet and a second reflective sheet, the first reflective sheet is arranged on the movable part, and the second reflective sheet is arranged on the fixed part, the first reflective sheet includes a first transmission surface and a first reflection surface arranged opposite to each other, the first reflection surface is arranged on the side of the first transmission surface away from the light source, the second reflective sheet includes a second transmission surface and a second reflection surface, the second reflection surface is arranged on the side of the second transmission surface away from the photosensitive element, and the first reflection surface and the second reflection surface are arranged at intervals.

5. The smart glasses according to claim 4, characterized in that: The first reflecting surface and the second reflecting surface are arranged in parallel, the length from the first transmitting surface to the first reflecting surface is the thickness h1 of the first reflecting sheet, and the thickness h1 gradually increases along the first direction; the length from the second transmitting surface to the second reflecting surface is the thickness h2 of the second reflecting sheet, and the thickness h2 gradually decreases along the first direction, and the first direction is perpendicular to the direction from the first reflecting surface to the second reflecting surface.

6. The smart glasses according to claim 4, characterized in that The plurality of optical films further include a collimating lens and a condensing lens. The collimating lens, the first reflecting sheet, the second reflecting sheet and the condensing lens are sequentially arranged from the movable member to the fixed member.

7. The smart glasses according to claim 1, wherein: The movable part also includes a first connecting end, which is arranged opposite to the first mounting end. The fixed part also includes a second connecting end, which is arranged opposite to the second mounting end. The second connecting end is connected to the temple. The sensing module also includes an insulating part, which connects the first connecting end and the second connecting end.

8. The smart glasses according to any one of claims 1 to 7, characterized in that: The sensing module is a micro-Fabry Perot cavity sensor.

9. The smart glasses according to claim 1, wherein: The sensing module further includes a circuit board, which is fixed to the temples and electrically connected to the light source and the photosensitive element respectively.

10. The smart glasses according to claim 1, wherein: There are two temples and two sensing modules, and the two sensing modules are respectively arranged on the two temples. The fixing part of any sensing module is arranged on a side of the moving part of the sensing module away from the other sensing module.

11. The smart glasses according to claim 1, wherein: The smart glasses further include at least one of a lens and a display module, and the lens and the display module are arranged on the bracket.

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