CN220455598U

CN220455598U - AR glasses

Info

Publication number: CN220455598U
Application number: CN202222029357.5U
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Chengdu Idealsee Technology Co Ltd
Current assignee: Chengdu Idealsee Technology Co Ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2024-02-06
Anticipated expiration: 2032-08-02

Abstract

The utility model discloses AR glasses, wherein a left glasses leg and a right glasses leg respectively comprise a non-deformable part fixedly connected with a glasses frame, an elastic piece fixedly connected with the non-deformable part and an elastic clamping piece hinged to the tail end of the elastic piece, the non-deformable part of the left glasses leg and/or the non-deformable part of the right glasses leg are/is provided with a containing cavity for installing an image display element, and the image display element comprises an optical fiber scanning image source and an imaging lens group. The utility model can furthest avoid deformation of the elastic piece, avoid excessive compression force while ensuring the wearing stability of the glasses, further promote the wearing experience of a wearer, ensure that the compression force of the glasses leg to the user is always maintained in a proper range, and avoid obvious promotion of the compression force due to the difference of head diameters; the application range of the head diameter is effectively improved; and the high-quality imaging and stable imaging of the AR glasses are also facilitated.

Description

AR glasses

Technical Field

The utility model relates to the technical field of AR display, in particular to AR glasses.

Background

Augmented reality (Augmented Reality, AR) display is an emerging display technology in which real world information and virtual information are superimposed in real time on the same picture or space. After a user wears the corresponding near-to-eye display equipment, human eyes can receive natural environment light rays and virtual images overlapped in the natural environment in real time, and sensory experience exceeding reality is achieved. Generally, in a practical application scene, AR display may be implemented by a near-eye display device such as AR glasses.

Typically, eyeglasses include two temples that can be unfolded or folded. When the glasses are worn, the two glasses legs are respectively positioned at the two side faces of the user and are respectively lapped at the ears at the two sides, to support the mirror leg through the ear, guarantee the stability that glasses were worn through the clamp of mirror leg to user's side face. However, AR glasses bodies contain imaging electronics, and in order to ensure stable operation of the electronics, the frame and the legs are often made of non-deformable materials, which can cause discomfort to the user. If the temples are tightly pressed against the side face of the user, pain is caused; if the temples are completely separated from the side face of the user, the glasses are easy to fall off. Based on the above problems, the user experience is seriously affected.

Disclosure of Invention

The embodiment of the utility model provides AR (augmented reality) glasses which are used for improving the head diameter application range of the glasses and improving the wearing comfort of users.

In order to achieve the above object, the present utility model provides AR glasses, including a lens frame, wherein the lens is disposed in the lens frame, left and right sides of the lens frame are respectively disposed with left and right side legs, the left and right side legs each include an undeformed portion fixedly connected with the lens frame, an elastic member fixedly connected with the undeformed portion, and an elastic clamping member hinged at the end of the elastic member, the undeformed portion and the elastic member extend in the front-rear direction, the elastic clamping member is disposed at the inner side of the elastic member, the middle of the outer side of the elastic clamping member is provided with a first hinge member, the end of the elastic member is provided with a second hinge member, and the first hinge member are hinged by a hinge shaft extending in the vertical direction;

The non-deformable part of the left glasses leg and/or the non-deformable part of the right glasses leg are provided with accommodating cavities for installing image display elements, the accommodating cavities are cavities with front side openings, the image display element is arranged in the accommodating cavity and comprises an image source for emitting image light to the lens and an imaging lens group arranged on an emitting light path of the image source.

In view of the light weight and small volume of the near-eye display device, the optical module is preferably a fiber scanning image source, and the display of the virtual image is realized by matching with the related optical element, which of course should understand that the scanning display device is not limited to a fiber scanner, and in other embodiments, a scanning display device such as a Micro-Electro-Mechanical System (MEMS) scanning mirror may be used.

Preferably, the optical fiber scanning image source comprises a scanning driver and an optical fiber, the scanning driver is provided with a fixed end and a free end, the free end of the scanning driver performs two-dimensional scanning motion relative to the fixed end of the scanning driver under the driving of a driving signal, the emergent end of the optical fiber is fixedly arranged at the free end of the scanning driver in a cantilever supporting mode, and the fixed end of the scanning driver is fixedly arranged in the accommodating cavity of the left glasses leg or the right glasses leg.

Further, still including being used for wearing the string neck subassembly on user's neck, string neck subassembly including string neck subassembly casing, holding chamber or neck subassembly casing in be provided with laser group and close beam unit, laser group contains a plurality of monochromatic laser, a plurality of monochromatic laser pass through the input that closes beam unit connection optic fibre, each monochromatic laser sends the light beam of different colours respectively.

When the glasses are worn, the elastic clamping pieces of the left glasses leg and the right glasses leg rotate around the respective hinge shafts to be in an opened state, namely, the tail ends of the two elastic clamping pieces are in the farthest state, and the deformation of the elastic pieces can be effectively avoided due to the open shape. Obviously, when the user wears, the tail ends of the glasses legs need to be stretched at intervals slightly larger than the head diameter of the user, and then the tail end intervals of the glasses legs are reduced along with the tail ends of the glasses legs reaching the rear side of the head of the user in the wearing process. Thus, the spacing at which the ends of the temples open at the beginning of wear may be greater than the spacing at which wear is completed. The utility model can avoid the process of increasing and reducing the distance between the tail ends of the two glasses legs by adopting the structure of hinging the middle part of the elastic clamping piece, and when the two sides of the head of a user start to contact the front side part of the elastic clamping piece, the elastic clamping piece automatically rotates around the hinging shaft along with the stress of the front side part of the elastic clamping piece, so that the rear side part of the elastic clamping piece is automatically fastened on the rear side of the head of the user, and the generation of instant deformation increase is avoided.

The existence of the hinge part can provide one rotation degree of freedom for the elastic clamping piece, so that the user with large head diameter can be adapted through the rotation of the elastic clamping piece around the hinge shaft; in the second aspect, the first hinge piece is taken as a fulcrum, and a user with a large head diameter is adapted through the deformation of the elastic clamping piece; in a third aspect, the second hinge member is used as a solid point, and the deformation of the elastic member is used for adapting to the user with a large head diameter. Of course these three aspects are the glasses leg that realizes above-mentioned effect in coordination in traditional glasses leg or part adoption elastic component, can furthest avoid the deformation that the elastic component produced, when guaranteeing that glasses wear stably, avoid too big clamp force, and then promote the wearing experience of wearer, make the glasses leg remain in a suitable range all the time to user's clamp force, can not produce obvious clamp force's promotion because of the difference of head footpath. And compared with the traditional glasses leg structure, the head diameter application range can be effectively improved.

The non-deformable part is made of a material with a larger elastic modulus, so that the non-deformable part cannot deform in the wearing process; the elastic piece and the elastic clamping piece are made of materials with larger elastic modulus, so that the elastic piece and the elastic clamping piece deform in the wearing process, the wearing and picking of a user are facilitated, enough clamping force is provided in the wearing process, and the AR glasses are prevented from falling off.

The non-deformable part of left mirror leg and the non-deformable part of right mirror leg, at least one of them is provided with image display element, the image display element include to the lens outgoing image light the image source and set up in the image lens group of image source outgoing light way, the lens of receiving image display element outgoing image light is the waveguide lens, the waveguide lens has the coupling-in unit used for receiving image display element outgoing image light, the coupling-in unit is arranged in front of the image display element along the image display element outgoing light path, the waveguide lens is located in front of wearing user's eyes, the image display element projects the image light to the coupling-in unit of waveguide lens, the waveguide lens is used for leading the light outgoing of image display element and outside real environment light into human eyes.

As mentioned above, the arrangement of the hinge portion can avoid the deformation generated by the elastic member to the greatest extent, especially the deformation of the connection between the elastic member and the non-deformable portion, so as to reduce the deformation force borne by the non-deformable portion as much as possible, effectively ensure that the connection between the non-deformable portion and the mirror frame is not subjected to great force, ensure the relative position between the non-deformable portion and the mirror frame to be fixed, and ensure the fixing of the relative position between the image display element and the coupling unit to be critical for ensuring the imaging quality and maintaining the imaging stability of the image. Therefore, the structure of the utility model is beneficial to high-quality imaging and stable imaging of the AR glasses on the basis of reducing wearing difficulty, improving wearing comfort and application range.

The non-deformable part of left mirror leg and/or the non-deformable part of right mirror leg be provided with the accommodation chamber that is used for installing image display element, the accommodation chamber be the open-ended cavity in front side, image display element install in the accommodation chamber. At this time, the coupling-in unit of the waveguide lens matched with the image display element is located right in front of the image display element.

Optionally, the lens includes a left lens and a right lens, and when the non-deformable portion of the left temple is provided with an image display element, the left lens is a waveguide lens; when the non-deformable part of the right glasses leg is provided with an image display element, the right glasses lens is a waveguide lens. Further, an optical module for diffracting and/or reflecting light is arranged in the waveguide lens, and the optical module is used for receiving the light of the image source led in by the coupling-in unit, guiding the light to human eyes, and guiding the light reflected by an external actual object to the human eyes, so that the human eyes can see the image of the external actual object and also see the virtual image, and augmented reality display is realized. Further, the optical module includes a relay unit and a coupling-out unit.

Further, the AR glasses also comprise a battery and a main control circuit board, wherein the main control circuit board is connected with an image source through a cable, and the battery is electrically connected with the main control circuit board. The battery is used for supplying power to the main control circuit board and the image source. The main control circuit board is provided with a storage unit, an operation processing unit and a display control unit.

Preferably, the mirror frame is provided with at least one camera, and the camera comprises one or more of a gesture recognition camera, a long-focus camera, a medium-long-focus camera and a slam camera. The camera is connected with the operation processing unit through a signal transmission line, and pictures or videos shot by the camera are stored in the storage unit and/or transmitted to the outside through the data interface or the communication module.

Preferably, the mirror frame or the mirror leg is provided with an imaging feedback unit, the imaging feedback unit is electrically connected with the operation processing unit, the imaging feedback unit is used for detecting imaging data of the image display element and feeding the imaging data back to the operation processing unit, and the operation processing unit judges whether to adjust a control signal of the display control unit according to the imaging data detected by the imaging feedback unit so as to ensure imaging quality.

The arithmetic processing unit may include one or more processing cores. The arithmetic processing unit connects the respective parts of the AR glasses using various interfaces and lines, and performs various functions of the respective elements within the AR glasses and processes data by running or executing stored instructions, programs, code sets or instruction sets, and calling stored data. Alternatively, the arithmetic processing unit may be implemented in at least one hardware form of digital signal processing (Digital Signal Processing, DSP), field programmable gate array (Field-Programmable Gate Array, FPGA), programmable logic array (Programmable Logic Array, PLA). The arithmetic processing unit may integrate one or a combination of several of a central processing unit (Central Processing Unit, CPU), an image processor (Graphics Processing Unit, GPU), a modem, and the like.

The display control unit includes a light source modulation circuit and a drive control circuit.

The display control unit is connected with the image display element through a cable, and the storage unit, the battery and the display control unit are respectively and electrically connected with the operation processing unit. The storage unit is used for storing the image data to be displayed and/or data storage during operation of the operation processing unit. The operation processing unit performs operation on the image data to be displayed, and transmits the generated video output control signal to the display control unit, and the display control unit transmits the video output control signal of the operation processing unit to the image display element to emit image light. The image data includes picture data or video data.

Specifically, the laser group is connected with the light source modulation circuit through a cable, the scanning driver is connected with the driving control circuit through a cable, the operation processing unit is respectively connected with the light source modulation circuit and the driving control circuit, the operation processing unit can control the light source modulation circuit to modulate the laser group according to image data to be displayed, and meanwhile, the operation processing unit controls the driving control circuit to drive the scanning driver to sweep, so that light beams transmitted in the transmission optical fibers are scanned and output.

Optionally, the main control circuit board is provided with a communication module, and the communication module is electrically connected with the operation processing unit, so that the operation processing unit can also obtain the image data to be displayed from the communication module.

Optionally, an audio chip is arranged on the main control circuit board and is electrically connected with the operation processing unit, and the audio chip is electrically connected with the microphone and the loudspeaker.

The battery, the main control circuit board, the microphone and the loudspeaker are all arranged in the neck hanging component shell.

Optionally, the neck hanging component shell is provided with a data interface, the main control circuit board is connected with the data interface through a data line, and the data interface is used for connecting the mobile terminal. The mobile terminal includes, but is not limited to, a smart phone, a smart tablet or a notebook. The arithmetic processing unit can acquire data from the storage unit and also can acquire data from the data interface.

Optionally, the neck hanging component shell is provided with a charging interface and/or a wireless charging receiving coil. The charging interface is arranged on the neck hanging component shell, and the wireless charging receiving coil is arranged in the neck hanging component shell. The main control circuit board is provided with a battery management module for charging the battery. The battery management module is electrically connected between the charging interface and the battery and/or between the wireless charging receiving coil and the battery.

Optionally, the charging interface and the data interface are the same interface, and the interface has both a data transmission function and a charging function.

One or more technical solutions in the embodiments of the present utility model at least have the following technical effects or advantages:

according to the utility model, the middle part of the elastic clamping piece is hinged, so that the process of increasing and reducing the distance between the tail ends of the two glasses legs can be avoided, when the two sides of the head of a user start to contact the front side part of the elastic clamping piece, the elastic clamping piece automatically rotates around the hinge shaft along with the stress of the front side part of the elastic clamping piece, and therefore, the rear side part of the elastic clamping piece is automatically fastened on the rear side of the head of the user, and the generation of instant deformation increase is avoided.

The arrangement of the hinge part can furthest avoid deformation generated by the elastic piece, particularly the deformation of the joint of the elastic piece and the non-deformable part, so that deformation force born by the non-deformable part is reduced as much as possible, the joint of the non-deformable part and the mirror frame is effectively ensured not to be subjected to great force, the relative position between the non-deformable part and the mirror frame is ensured to be fixed, and the fixing of the relative position between the image display element and the coupling-in unit is the key for ensuring imaging quality and maintaining stable imaging. Therefore, the structure of the utility model is beneficial to high-quality imaging and stable imaging of the AR glasses on the basis of reducing wearing difficulty, improving wearing comfort and application range.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic view of a portion of the embodiment of FIG. 1;

FIG. 3 is a schematic diagram of an image display device according to the present utility model;

FIG. 4 is a schematic diagram of a display system in which an image display element cooperates with a waveguide lens to achieve near-to-eye display;

FIG. 5 is a schematic view of a waveguide lens;

FIG. 6 is a schematic diagram of an arrangement of an imaging feedback unit;

FIG. 7 is a schematic diagram of another arrangement of an imaging feedback unit;

FIG. 8 is a schematic diagram of another embodiment of the present utility model;

FIG. 9 is a schematic view showing the arrangement of the internal components of the neck assembly housing of the embodiment of FIG. 8;

FIG. 10 is a schematic diagram of a fiber scan image source;

fig. 11 is a schematic diagram of the principle of optical fiber scanning image source imaging.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 and 2, an embodiment of the present utility model provides AR glasses, including a lens frame 11, wherein lenses are disposed in the lens frame 11, left and right side legs 13 and right side legs 14 are disposed on left and right sides of the lens frame 11, the left and right side legs 13 and 14 each include a non-deformable portion 101 fixedly connected to the lens frame 11, an elastic member 102 fixedly connected to the non-deformable portion 101, and an elastic clamping member 103 hinged to an end of the elastic member 102, the non-deformable portion 101 and the elastic member 102 extend in a front-rear direction, the elastic clamping member 103 is located inside the elastic member 102, a first hinge member 104 is disposed in a middle portion of an outer side surface of the elastic clamping member 103, a second hinge member 105 is disposed at an end of the elastic member 102, and the first hinge member 104 are hinged by a hinge shaft 106 extending in a vertical direction.

When the glasses are worn, the elastic clamping pieces 103 of the left glasses leg 13 and the right glasses leg 14 rotate around the respective hinging shafts 106 to be in an open state, namely, the tail ends of the two elastic clamping pieces 103 are in the farthest state, and the deformation of the elastic pieces 102 can be effectively avoided due to the open shape. Obviously, when the user wears, the tail ends of the glasses legs need to be stretched at intervals slightly larger than the head diameter of the user, and then the tail end intervals of the glasses legs are reduced along with the tail ends of the glasses legs reaching the rear side of the head of the user in the wearing process. Thus, the spacing at which the ends of the temples open at the beginning of wear may be greater than the spacing at which wear is completed. By adopting the structure that the middle part of the elastic clamping piece 103 is hinged, the utility model can avoid the process that the distance between the tail ends of the two glasses legs is firstly increased and then reduced, when the two sides of the head of a user start to contact the front side part of the elastic clamping piece 103, the elastic clamping piece 103 automatically rotates around the hinge shaft 106 along with the stress of the front side part of the elastic clamping piece 103, thereby the rear side part of the elastic clamping piece 103 is automatically fastened on the rear side of the head of the user, and the generation of instant deformation increase is avoided.

The presence of the hinge portion can provide the elastic clamping member 103 with one degree of freedom of rotation, and thus, on the first hand, a user with a large head diameter can be adapted by the rotation of the elastic clamping member 103 about the hinge shaft 106; in the second aspect, the first hinge member 104 is taken as a fulcrum, and the user with a large head diameter is adapted through the deformation of the elastic clamping member 103; in a third aspect, the second hinge 105 is used as a solid point to adapt to a user with a large head diameter through deformation of the elastic member 102. Of course, these three aspects are in coordination to realize the above-mentioned effect, compare in traditional glasses leg or the glasses leg of part adoption elastic component 102, can furthest avoid the deformation that elastic component 102 produced, when guaranteeing that glasses wear stably, avoid too big compressive force, and then promote the wearing experience of wearer, make the glasses leg remain in a suitable range all the time to user's compressive force, can not produce obvious compressive force's promotion because of the difference of head footpath. And compared with the traditional glasses leg structure, the head diameter application range can be effectively improved.

The non-deformable part 101 is made of a material with a larger elastic modulus so that the non-deformable part 101 cannot deform during wearing; the elastic piece 102 and the elastic clamping piece 103 are made of materials with larger elastic modulus, so that the elastic piece 102 and the elastic clamping piece 103 deform in the wearing process, the wearing and the picking of a user are facilitated, and enough clamping force is provided in the wearing process, so that the AR glasses are prevented from falling off. In some embodiments, the non-deformable portion 101 is formed of a material having an elastic modulus of 200N/mm ² To 2410N/mm ² Any value in the range, the elastic modulus of the material used for the elastic member 102 and the elastic clamping member 103 is 1.2N/mm ² To 8N/mm ² Any value in the range.

The non-deformable portion 101 and the frame 11 may be fixedly connected by a connector, an adhesive, a welding, or an integral molding, which is not limited thereto.

As shown in fig. 3, at least one of the non-deformable portion 101 of the left temple 13 and the non-deformable portion 101 of the right temple 14 is provided with an image display element 21, the image display element 21 includes an image source 211 for emitting image light to the lens and an imaging lens group 212 disposed on an emitting light path of the image source 211, the lens for receiving the image light emitted from the image display element 21 is a waveguide lens 100, as shown in fig. 4 and 5, the waveguide lens 100 has a coupling unit 110 for receiving the image light emitted from the image display element 21, the coupling unit 110 is disposed in front of the image display element 21 along the light path emitted from the image display element 21, the waveguide lens 100 is disposed in front of the eye of the wearer, the image display element 21 projects the image light to the coupling unit 110 of the waveguide lens 100, and the waveguide lens 100 is used for guiding the light emitted from the image display element 21 and the external real environment light into the human eye.

As mentioned above, the hinge portion can avoid the deformation generated by the elastic member 102 to the greatest extent, especially the deformation at the connection between the elastic member 102 and the non-deformable portion, so as to reduce the deformation force borne by the non-deformable portion as much as possible, effectively ensure that the connection between the non-deformable portion and the frame 11 is not subjected to a great force, and ensure that the relative positions between the non-deformable portion and the frame 11 are fixed, while the fixing of the relative positions between the image display element 21 and the coupling unit 110 is critical to ensure the imaging quality and maintain the stable imaging of the image. Therefore, the structure of the utility model is beneficial to high-quality imaging and stable imaging of the AR glasses on the basis of reducing wearing difficulty, improving wearing comfort and application range.

The non-deformable portion 101 of the left temple 13 and/or the non-deformable portion 101 of the right temple 14 are provided with a receiving cavity for mounting the image display element 21, the receiving cavity is a cavity with a front opening, and the image display element 21 is mounted in the receiving cavity. At this time, the coupling-in unit 110 of the waveguide lens 100 mated with the image display element 21 is located directly in front of the image display element 21.

In some embodiments, the lenses include a left lens 121 and a right lens 122, where the left lens 121 is a waveguide lens 100 when the non-deformable portion 101 of the left temple 13 is provided with an image display element 21; when the non-deformable portion 101 of the right temple 14 is provided with the image display element 21, the right lens 122 is the waveguide lens 100. Further, in some embodiments, an optical module for diffracting and/or reflecting light is disposed in the waveguide lens 100, and the optical module is configured to receive the light from the image source 211 introduced by the coupling unit 110, guide the light to the human eye, and guide the light reflected by the external real object to the human eye, so that the human eye can see the image of the external real object and the virtual image, thereby realizing the augmented reality display. Further, in some embodiments, as shown in fig. 5, the optical module includes a relay unit 120 and an out-coupling unit 130, where the relay unit 120 is configured to expand the light beam of the image source 211 in the X direction and input the expanded light beam to the out-coupling unit 130, and expand the light beam in the Y direction in the out-coupling unit 130 and output the expanded light beam to the human eye.

FIG. 4 is an illustrative near-to-eye display system for AR glasses according to an embodiment of the present utility model, the optical system comprising: an image source 211, an imaging lens group 212, and a waveguide lens 100. The light beam output by the image source 211 enters the waveguide lens 100 from the coupling-in unit 110 of the waveguide lens 100 and is transmitted after passing through the imaging lens group 212, and is coupled out into the human eye by the coupling-out unit 130 after being expanded by the relay unit 120 (not shown in the figure).

Referring to fig. 5, an exemplary three-dimensional structure of the waveguide lens 100 is shown, specifically, the waveguide lens 100 includes a coupling-in unit 110, a relay unit 120, and a coupling-out unit 130, and a light beam is input into the waveguide from the coupling-in unit 110, and is input to the coupling-out unit 130 after being expanded in the X direction in the relay unit 120, and is output after being expanded in the Y direction in the coupling-out unit 130. The arrow on the waveguide lens 100 shown in fig. 5 represents the transmission direction of the light beam.

Of course, the positional relationship, the structural configuration, etc. of the waveguide lens 100 and the near-eye display system shown in the drawings are merely examples, and should not be construed as limiting the present utility model.

As shown in fig. 2, the AR glasses further include a battery 22 and a main control circuit board 23, the main control circuit board 23 is connected to the image source 211 through a cable, and the battery 22 is electrically connected to the main control circuit board 23. The battery 22 is used to power the main control circuit board 23 and the image source 211. The main control circuit board 23 is provided with a storage unit, an operation processing unit 231 and a display control unit.

Preferably, at least one camera is disposed on the lens frame 11, and the camera includes one or more of a gesture recognition camera, a tele camera, a mid-tele camera and a slam camera. As a preferred embodiment, the middle part of the mirror frame 11 is provided with a gesture recognition camera, a long-focus camera and a medium-long-focus camera, and the left side and the right side of the mirror frame 11 are respectively provided with a slam camera. The camera is connected with the operation processing unit 23 through a signal transmission line, and pictures or videos shot by the camera are stored in the storage unit and/or transmitted to the outside through a data interface or a communication module.

Preferably, the frame or the temple is provided with an imaging feedback unit 24, the imaging feedback unit 24 is electrically connected with the operation processing unit 231, the imaging feedback unit 24 is used for detecting imaging data of the image display element 21 and feeding back the imaging data to the operation processing unit 231, and the operation processing unit 231 determines whether to adjust the control signal of the display control unit according to the imaging data detected by the imaging feedback unit 24, so as to ensure imaging quality. Optionally, as shown in fig. 6, the imaging feedback unit 24 is disposed near the image display element 21, and a beam splitting unit 241 is disposed between the image display element 21 and the waveguide lens 100, where the beam splitting unit 241 conducts a part of the image light emitted from the image display element 21 to the imaging feedback unit 24. Alternatively, as shown in fig. 7, the imaging feedback unit 24 and the image display element 21 are symmetrically disposed on two sides of the waveguide lens 100, and the coupling efficiency of the coupling unit 110 is lower than 100%, so that the imaging feedback unit 24 receives the light transmitted from the coupling unit 110 for detecting imaging data.

The operation processing unit 231 may include one or more processing cores. The operation processing unit 231 connects respective portions of the AR glasses using various interfaces and lines, and performs various functions of respective elements within the AR glasses and processes data by running or executing stored instructions, programs, code sets, or instruction sets, and calling stored data. Alternatively, the operation processing unit 231 may be implemented in at least one hardware form of digital signal processing (Digital Signal Processing, DSP), field programmable gate array (Field-Programmable Gate Array, FPGA), programmable logic array (Programmable Logic Array, PLA). The operation processing unit 231 may integrate one or a combination of several of a central processing unit (Central Processing Unit, CPU), an image processor (Graphics Processing Unit, GPU), a modem, and the like. The CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for being responsible for rendering and drawing of display content; the modem is used to handle wireless communications. It is to be understood that the modem may not be integrated into the arithmetic processing unit 231, and may be implemented by a single communication chip.

The display control unit may include one or more of a display driving circuit, a light source modulating circuit 204, and a driving control circuit 205.

The display control unit is connected to the image display element 21 through a cable, and the storage unit, the battery 22 and the display control unit are electrically connected to the operation processing unit 231, respectively. The storage unit is used for storing the image data to be displayed and/or data storage during operation of the operation processing unit 231. The operation processing unit 231 performs an operation on the image data to be displayed, and transmits the generated video output control signal to the display control unit, and the display control unit transmits the video output control signal of the operation processing unit 231 to the image display element 21 for emission of image light. The image data includes picture data or video data.

In some embodiments, the main control circuit board 23 is provided with a communication module, and the communication module is electrically connected to the operation processing unit 231, so that the operation processing unit 231 may also obtain the image data to be displayed from the communication module.

Illustratively, the communication module may include a bluetooth communication component, a WiFi chip, a 5G communication component, or a 6G communication component; a (Near Field Communication, NFC) near field communication component may also be included, without limitation.

In some embodiments, the main control circuit board 23 is provided with an audio chip, the audio chip is electrically connected with the operation processing unit 231, the audio chip is electrically connected with the microphone and the speaker,

in some embodiments, as shown in fig. 1 and 2, the elastic clamping member 103 is provided with a housing 107, and the battery 22, the main control circuit board 23, the microphone and the speaker are all disposed in the housing 107. In other embodiments, as shown in fig. 8 and 9, the AR glasses further include a neck hanging component 31 for being worn on the neck of the user, the neck hanging component 31 includes a neck hanging component housing 300, and the battery 22, the main control circuit board 23, the microphone and the speaker are all disposed in the neck hanging component housing 300.

Preferably, in some embodiments, the accommodating housing 107 or the neck hanging assembly housing 300 is provided with a data interface, and the main control circuit board 23 is connected to the data interface through a data line, and the data interface is used for connecting to the mobile terminal. The mobile terminal includes, but is not limited to, a smart phone, a smart tablet or a notebook. Optionally, the data interface is one or more of a Type-c interface, a Micro-USB interface, a Mini-USB interface and a USB male interface. The arithmetic processing unit 231 can thereby acquire the image data to be displayed from the storage unit, and also can acquire the image data to be displayed from the data interface.

Preferably, in some embodiments, the receiving housing 107 or the neck assembly housing 300 is provided with a charging interface and/or a wireless charging receiving coil. The charging interface is disposed on the accommodating housing 107 or the neck hanging assembly housing 300, and the wireless charging receiving coil is disposed in the accommodating housing 107 or the neck hanging assembly housing 300. The main control circuit board 23 is provided with a battery 22 management module that charges the battery 22. The battery 22 management module is electrically connected between the charging interface and the battery 22 and/or between the wireless charging receiving coil and the battery 22.

The charging interface is used for establishing electrical connection with a charging device, wherein the charging device comprises a mobile terminal, a wearable electronic device, a mobile power supply or a charger. Such mobile terminals include, but are not limited to, smartphones or notebooks. Wearable electronic devices include, but are not limited to, smart necklaces with power devices or smart hats with power devices. The charging device includes, but is not limited to, a mobile charging device or a fixed charging device. The charging interface establishes electrical connection with the charging assembly to achieve wired charging of the AR glasses.

The wireless induction coil can be matched with the wireless charging coil to realize wireless charging of the AR glasses. For example, the wireless induction coil may implement wireless charging using wireless charging alliance QI.

In some embodiments, the charging interface and the data interface are the same interface, and the interface has both a data transmission function and a charging function. The charging interface is one or a combination of more of a Type-c interface, a Micro-USB interface, a lighting interface, a Mini-USB interface and a USB male interface. The embodiments of the present disclosure are not limited.

Alternatively, the image source 211 may be a fiber scan image source, an LCD image source, an LED image source, an LCoS image source, a DLP image source, an OLED image source, or other image source.

In view of the light weight and small volume of the near-eye display device, the optical module is preferably the image source 211, which is a fiber scanning image source, and cooperates with the related optical element to display the virtual image, which is of course understood that the scanning display device is not limited to a fiber scanner, and in other embodiments, a scanning display device such as a Micro-Electro-Mechanical System (MEMS) scanning mirror may be used.

Further, as shown in fig. 10 and 11, the optical fiber scanning image source 212 includes a scanning driver 200 and an optical fiber 201, where the scanning driver 200 has a fixed end and a free end, the free end of the scanning driver 200 performs a two-dimensional scanning motion relative to the fixed end under the driving of a driving signal, the emitting end of the optical fiber 201 is fixedly disposed at the free end of the scanning driver 200 in a cantilever supporting manner, the fixed end of the scanning driver 200 is fixedly mounted in the accommodating cavity of the left or right temple,

further, the accommodating cavity or the accommodating housing 107 or the neck assembly housing 300 is provided with a laser set 202 and a beam combining unit 203, the laser set 202 includes a plurality of monochromatic lasers 2021, the plurality of monochromatic lasers 2021 are connected to the input end of the optical fiber 201 through the beam combining unit 203, and each monochromatic laser 2021 emits light beams with different colors respectively. As can be seen, the laser group 202 may be a Red (Red, R), green (Green, G), blue (Blue, B) laser. The light beams emitted by the lasers in the laser group 202 are combined into one laser beam by the beam combining unit 203 and coupled into the optical fiber 201,

the laser group 202 is connected to the light source modulation circuit 204 through a cable, the scan driver 200 is connected to the drive control circuit 205 through a cable, the arithmetic processing unit 231 is connected to the light source modulation circuit 204 and the drive control circuit 205,

The operation processing unit 231 may control the light source modulation circuit 204 to modulate the laser set 202 according to the image data to be displayed, and at the same time, the operation processing unit 231 controls the driving control circuit 205 to drive the scan driver 200 to perform scanning, so as to scan out the light beam transmitted in the optical fiber 201.

The light beam scanned by the scanning driver 200 acts on a certain pixel position and forms a light spot at the pixel position, thereby realizing the scanning of the pixel position. Under the driving of the scan driver 200, the optical fiber cantilever 2011 scans according to a certain scan track, so that the light beam moves to the corresponding pixel point to scan. During the actual scanning process, the light beam output by the optical fiber 201 will form a spot with corresponding image information (e.g., color, gray scale, or brightness) at each pixel location. In one frame time, the light beam traverses each pixel point position at a high enough speed to complete the scanning of one frame of image, and the human eye can not perceive the movement of the light beam at each pixel point position, but can see one complete frame of image because of the characteristic of 'vision residue' of the human eye observation object.

With continued reference to fig. 11, in one embodiment of the optical fiber scanning image source, the optical fiber 201 is fixedly disposed at the free end of the scanning driver 200 in a cantilever supporting manner, so that the free end of the scanning driver 200 extends to form an optical fiber cantilever 2011, and in operation, the scanning driver 200 vibrates along the first direction (Y direction) and the second direction (X direction) under the driving of the scanning driving signal, and is driven by the scanning driver 200, the free end of the optical fiber cantilever 2011 sweeps along a preset track and emits a light beam, and the emitted light beam can scan on the medium surface.

It should be noted that the above-mentioned embodiments illustrate rather than limit the utility model, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" or "comprises" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The use of the words first, second, third, etc. do not denote any order, and the words may be interpreted as names.

One or more technical solutions in the embodiments of the present utility model at least have the following technical effects or advantages: deformation of the elastic piece can be avoided to the greatest extent, the eyeglass wearing stability is guaranteed, meanwhile, excessive pressing force is avoided, wearing experience of a wearer is further improved, the pressing force of the eyeglass legs to a user is always maintained in an appropriate range, and obvious pressing force improvement caused by difference of head diameters is avoided; the application range of the head diameter is effectively improved; and the high-quality imaging and stable imaging of the AR glasses are also facilitated.

All of the features disclosed in this specification, except mutually exclusive features, may be combined in any manner.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.

The utility model is not limited to the specific embodiments described above. The utility model extends to any novel one, or any novel combination, of the features disclosed in this specification, as well as to any novel one, or any novel combination, of the steps of the method or process disclosed.

Claims

1. The AR glasses are characterized by comprising a glasses frame, wherein lenses are arranged in the glasses frame, a left glasses leg and a right glasses leg are respectively arranged on the left side and the right side of the glasses frame, the left glasses leg and the right glasses leg respectively comprise an undeformable part fixedly connected with the glasses frame, an elastic piece fixedly connected with the undeformable part and an elastic clamping piece hinged at the tail end of the elastic piece, the undeformable part and the elastic piece extend along the front-back direction, the elastic clamping piece is positioned at the inner side of the elastic piece, a first hinging piece is arranged in the middle of the outer side surface of the elastic clamping piece, a second hinging piece is arranged at the tail end of the elastic piece, the first hinging piece and the first hinging piece are hinged through a hinging shaft extending along the vertical direction,

The non-deformable part of the left glasses leg and/or the non-deformable part of the right glasses leg are provided with accommodating cavities for installing image display elements, the accommodating cavities are cavities with front openings, the image display elements are installed in the accommodating cavities, the image display elements comprise image sources for emitting image light to lenses and imaging lens groups arranged on an emitting light path of the image sources, and the image sources are optical fiber scanning image sources;

the optical fiber scanning image source comprises a scanning driver and an optical fiber, wherein the scanning driver is provided with a fixed end and a free end, the free end of the scanning driver performs two-dimensional scanning motion relative to the fixed end under the driving of a driving signal, the emergent end of the optical fiber is fixedly arranged at the free end of the scanning driver in a cantilever supporting mode, and the fixed end of the scanning driver is fixedly arranged in the accommodating cavity of the left glasses leg or the right glasses leg.

2. The AR glasses according to claim 1, comprising a neck hanging assembly for wearing on the neck of the user, wherein the neck hanging assembly comprises a neck hanging assembly housing, a laser set and a beam combining unit are arranged in the accommodating cavity or the neck hanging assembly housing, the laser set comprises a plurality of monochromatic lasers, and the monochromatic lasers are connected with the input end of the optical fiber through the beam combining unit.

3. The AR glasses according to claim 2, wherein the lens for receiving the image light emitted from the image display device is a waveguide lens, the waveguide lens has a coupling unit for receiving the image light emitted from the image display device, the coupling unit is disposed in front of the image display device along the light path emitted from the image display device, and the waveguide lens is used for guiding the light emitted from the image display device and the external real ambient light into the human eye.

4. The AR glasses according to claim 3, wherein said lenses comprise a left lens and a right lens, said left lens being a waveguide lens when said non-deformable portion of said left temple is provided with an image display element; when the non-deformable part of the right glasses leg is provided with an image display element, the right glasses lens is a waveguide lens.

5. The AR glasses according to claim 2 or 3, further comprising a battery and a main control circuit board disposed in the neck hanging assembly housing, wherein the battery is electrically connected with the main control circuit board, and the main control circuit board is provided with a storage unit, an operation processing unit and a display control unit, and the display control unit is connected with the optical fiber scanning image source and the laser set through cables.

6. The AR glasses according to claim 5, wherein at least one camera is disposed on the glasses frame, the camera comprises one or more of a gesture recognition camera, a tele camera, a mid-tele camera and a slam camera, and the camera is connected with the operation processing unit through a signal transmission line.

7. The AR glasses according to claim 5, further comprising an imaging feedback unit electrically connected to the operation processing unit, the imaging feedback unit detecting imaging data of the image display element and feeding back the imaging data to the operation processing unit.

8. The AR glasses according to claim 7, wherein the neck hanging assembly housing is provided with a data interface, the main control circuit board is connected to the data interface through a data line, and the data interface is used for connecting to the mobile terminal.

9. The AR glasses according to claim 3 or 4, wherein an optical module for diffracting and/or reflecting light is disposed in the waveguide lens, and the optical module is configured to receive the light from the image source introduced by the coupling unit and guide the light to human eyes, and guide the light reflected by the external physical object to human eyes.

10. The AR glasses according to claim 9, wherein the optical module comprises a relay unit and a coupling-out unit;

the light beam is input into the waveguide from the coupling-in unit, is input into the coupling-out unit after being expanded in the X direction in the relay unit, and is output after being expanded in the Y direction in the coupling-out unit.

11. The AR glasses according to claim 5, wherein the arithmetic processing unit is implemented in at least one of a DSP, an FPGA and a PLA in hardware.

12. The AR glasses according to claim 5, wherein the arithmetic processing unit integrates one or a combination of several of a central processor, an image processor and a modem.

13. The AR glasses according to claim 5, wherein the main control circuit board is provided with a communication module, and the communication module is electrically connected with the operation processing unit.

14. The AR glasses according to claim 13, wherein the communication module comprises one or a combination of a bluetooth communication component, a WiFi chip, a 5G communication component and a near field communication component.

15. The AR glasses according to claim 8, wherein the data interface is one or more of a Type-c interface, a Micro-USB interface, a lighting interface, a Mini-USB interface, and a USB male interface.

16. The AR glasses according to claim 5, wherein the main control circuit board is provided with an audio chip, the audio chip is electrically connected with the operation processing unit, and the audio chip is electrically connected with the microphone and the speaker.

17. The AR glasses according to claim 16, wherein a microphone and speaker are disposed in said neck assembly housing.

18. The AR glasses according to claim 8, wherein the neck pack housing is provided with a charging interface and/or a wireless charging receiving coil, the charging interface being provided on the neck pack housing, the wireless charging receiving coil being provided in the neck pack housing.

19. The AR glasses according to claim 18, wherein the charging interface is one or more of a Type-c interface, a Micro-USB interface, a lighting interface, a Mini-USB interface, and a USB male interface.

20. The AR glasses according to claim 19, wherein said charging interface is the same interface as said data interface.

21. The AR glasses according to claim 18, wherein the main control circuit board is provided with a battery management module for charging the battery, and the battery management module is electrically connected between the charging interface and the battery and/or between the wireless charging receiving coil and the battery.

22. An AR glasses according to claim 3, wherein a beam splitting unit is provided between the image display element and the waveguide lens, the beam splitting unit conducts a part of the image light emitted by the image display element to the imaging feedback unit.

23. The AR glasses according to claim 22, wherein the imaging feedback unit and the image display element are symmetrically disposed on both sides of the waveguide lens, and the imaging feedback unit receives the light transmitted from the coupling unit.