CN219978631U - AR glasses - Google Patents

Abstract

The utility model discloses AR glasses, which comprise a glasses body and a neck hanging assembly formed by two neck hanging parts, wherein the glasses body comprises a glasses frame and an image display element arranged on the glasses frame, the rear ends of the two neck hanging parts are connected through a detachable connecting piece, the two neck hanging parts after connection form a U-shaped with an opening at the front end, the neck hanging parts comprise a shell, a battery and a main control circuit board, the battery and the main control circuit board are arranged in the shell, and the image display element comprises an optical fiber scanning image source. According to the utility model, the battery and the main control circuit board are arranged in the neck hanging assembly, so that the weight of the glasses body is remarkably reduced, and the wearing comfort and the wearing stability of a user are improved on the premise of not affecting the functions and the performances of the glasses. The neck hanging accessory is hung on the neck of the user, so that the actions and actions of the user are not hindered. On the premise of improving the wearing stability and having a larger adaptation range, the display stability is ensured.

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.

At present, in some AR intelligent glasses, components such as battery, PCB subassembly set up inside the mirror leg, and the whole weight of glasses is big, makes the glasses cause great load to user's supporting position, wears the travelling comfort poor, can not satisfy the demand of wearing for a long time.

Disclosure of Invention

The embodiment of the utility model provides AR glasses which are used for improving wearing comfort of users and reducing the weight of a glasses main body on the premise of not affecting the functions and performances of the glasses.

In order to achieve the above object, the present utility model provides an AR glasses, including a glasses body and a neck hanging assembly formed by two neck hanging parts, the glasses body includes a glasses frame for wearing by a user and an image display element disposed on the glasses frame, the glasses frame includes a glasses frame, a left lens and a right lens are disposed in the glasses frame, the image display element includes at least one first image display element emitting image light to the left lens and at least one second image display element emitting image light to the left lens, the first image display element and the second image display element are image display elements with the same structure, the left lens and the right lens receiving the image light emitted by the image display elements are waveguide lenses, the neck hanging assembly is worn on the neck of the user, the two neck hanging parts are respectively disposed on the left side and the right side of the neck of the user, the rear ends of the two neck hanging parts are connected by a detachable connection piece, the two neck hanging parts after connection form a U-shaped with a front end opening, the neck hanging part disposed on the left side is connected with the first image display element by a cable, the left neck part disposed on the left side is connected with the main control circuit and the right image display element by the cable, and the main control circuit is disposed in the main control circuit and the main circuit and the battery panel is connected with the corresponding battery panel. The battery is used for supplying power for the main control circuit board and the glasses body. Further, the shell is provided with an inner cavity, and the battery and the main control circuit board are arranged in the inner cavity.

Each image display element comprises an image source for emitting image light and an imaging lens group arranged on the emitting light path of the image source.

Considering that the light weight and the small volume of the near-eye display device are realized, the requirement on the optical module is high, preferably, the image source is an optical fiber scanning image source, and the display of the virtual image is realized by matching with related optical elements. The optical fiber scanning image source has small volume, light weight and obviously better display effect than an LCD image source, an LED image source, an LCoS image source, a DLP image source, an OLED image source or other image sources. Of course, it should be understood that the scanning display device is not limited to a fiber scanner, and in other embodiments, scanning display devices such as Micro-Electro-Mechanical System (MEMS) scanning mirrors may also be employed.

Further, 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 on the glasses frame.

The neck hanging part or the glasses frame is provided with a laser group and a beam combining unit. Optionally, the laser set and the beam combining unit are disposed in the accommodating cavity of the lens frame or the lens leg. The laser group comprises a plurality of monochromatic lasers, the monochromatic lasers are connected with the input end of the optical fiber through the beam combining unit, and each monochromatic laser respectively emits light beams with different colors.

The waveguide lens is provided with a coupling-in unit for receiving image light of the image display element, the coupling-in unit is arranged in front of the image display element along an emergent light path of the image display element arranged corresponding to the coupling-in unit, the waveguide lens is positioned in front of eyes of a wearing user, the image display element projects the image light to the coupling-in unit of the waveguide lens, and the waveguide lens is used for guiding light emergent from the image display element and external real environment light into eyes of a person.

According to the utility model, the battery and the main control circuit board are arranged in the neck hanging assembly, so that the weight of the glasses body is remarkably reduced, and the wearing comfort of a user is improved on the premise of not affecting the functions and performances of the glasses. And the neck hanging component is formed by two detachable neck hanging parts, so that the neck hanging component is convenient to wear and take down. The glasses body can be worn firstly during use, then the left side and the right side neck hanging parts are worn from two sides of the neck respectively, and are connected through the detachable connecting piece, and the neck hanging component can be taken down by opening the detachable connecting piece during taking down. Of course, the neck hanging component can be worn firstly and then the glasses are worn, so that the convenience of operation is not affected.

The frame may be made of various materials such as metal, plastic, and ceramic, and is not limited herein. In some embodiments, the middle of the frame is provided with a nose pad.

In some embodiments, an optical module for diffracting and/or reflecting light is disposed in the waveguide lens, and the optical module is configured to receive light from the image source led in by the coupling unit, guide the light to human eyes, and guide light reflected by an external real object to human eyes at the same time, so that the human eyes can see an image of the external real object and also see a virtual image, thereby realizing augmented reality display.

In some embodiments, the optical module includes a relay unit and an out-coupling unit, where the relay unit is configured to perform beam expansion in an X direction on the image source light, and input the image source light to the out-coupling unit, and perform beam expansion in a Y direction in the out-coupling unit, and output the image source light to the human eye.

The left side and the right side of the mirror frame can be respectively provided with a left mirror leg and a right mirror leg, the left mirror leg and the right mirror leg are provided with a containing cavity for installing an image display element, the containing cavity is a cavity with an opening at the front side, and the image display element is installed in the containing cavity. 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. The front ends of the left glasses leg and the right glasses leg are respectively connected with the left end and the right end of the glasses frame. The connection mode between the glasses legs and the glasses frames is not limited, the left glasses legs or the right glasses legs can be connected with the cross beam through a conventional hinge structure, and the left glasses legs or the right glasses legs can be fixedly connected with the cross beam or integrally formed.

In some embodiments, in order to ensure imaging quality, the coupling unit between the image display element and the waveguide lens should ensure the relative position as fixed as possible, so it is preferable that the left or right temple provided with the image display element each includes an undeformable portion provided with the image display element and an elastically deforming portion fixedly connected or hinged to the undeformable portion at the rear side of the undeformable portion. The non-deformable portion and the elastic deformation portion are hinged, so that the storage is facilitated. Of course, in other preferred embodiments, the non-deformable portion is fixedly connected to the frame.

Optionally, the frame is connected with other wearing components which can be worn on the head of the user, such as a binding band, a head ring, a helmet and the like. In some embodiments, the accommodating cavity for mounting the image display element is disposed on the lens frame, and preferably, the extending direction of the accommodating cavity and the image display element in the accommodating cavity is the same as the extending direction of the portion of the lens frame where the accommodating cavity is located. For example, when the accommodating cavity is disposed at the upper edge of the lens frame, the extending directions of the accommodating cavity and the image display element are approximately along the left-right direction, and the imaging lens group of the image display element includes a reflector that reflects light to the waveguide lens, so that the coupling unit of the waveguide lens matched with the image display element is located in front of the light outgoing path of the reflector, and preferably, the coupling unit is located at an upper position of the waveguide lens, and the accommodating cavity further includes a light transmitting cavity that communicates the reflector with the coupling unit. When the accommodating cavity is arranged at the other edges of the mirror frame, the accommodating cavity and the image display element are arranged in the same way. The technical scheme that image display element sets up on the picture frame can avoid making the contained angle between mirror leg and the picture frame change because of user's head footpath influence, leads to the contained angle between image display element's the exit direction and the coupling unit extending direction to deviate from the design value, and then influences the problem of imaging quality.

The main control circuit board of the neck hanging part is provided with a storage unit, an operation processing unit and a display control unit, the battery, the storage unit and the display control unit are respectively and electrically connected with the operation processing unit, and the display control unit is connected with the image display element through the cable.

Further alternatively, the display control unit may include a light source modulation circuit and a drive control circuit. The laser group is electrically connected with the light source modulation circuit, the scanning driver is electrically connected with the drive control circuit, and the operation processing unit is respectively connected with the light source modulation circuit and the drive control circuit. The operation processing unit can control the light source modulation circuit to modulate the laser set according to the 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 the light beams transmitted in the transmission optical fibers are scanned and output.

The arithmetic processing unit may include one or more processing cores. The arithmetic processing unit utilizes various interfaces and lines to connect various parts in the corresponding neck hanging part with the corresponding image display elements, and executes various functions and processing data of the corresponding image display elements and various parts in the corresponding neck hanging part 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 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 understood that the modem may not be integrated into the arithmetic processing unit, and may be implemented by a single communication chip.

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.

The detachable connecting piece can be a detachable connecting piece which is convenient to disassemble and assemble and is convenient to assemble and is not limited by the magnetic attraction, the buckle, the plug-in connection and the like. For example, the detachable connection piece includes a first magnetic connection piece disposed at the rear end of the left neck hanging part and a first magnetic connection piece disposed at the rear end of the right neck hanging part and matched with the first magnetic connection piece, or the detachable connection piece includes a plug disposed at the rear end of the left neck hanging part and a jack disposed at the rear end of the right neck hanging part and matched with the plug, or the detachable connection piece includes a first clamping piece disposed at the rear end of the left neck hanging part and a second clamping piece matched with the first clamping piece and disposed at the rear end of the right neck hanging part.

In some embodiments, the left neck hanging part and/or the right neck hanging part are/is provided with a data interface on the shell, and the arithmetic processing unit 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. 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 operation processing unit can acquire the image data to be displayed from the storage unit, and can also acquire the image data to be displayed from the data interface.

In some embodiments, a communication module is disposed on the main control circuit board of the left neck hanging part and/or the right neck hanging part, and the communication module is electrically connected with the operation processing unit, so that the operation processing unit can also obtain 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, an audio chip is disposed on the main control circuit board of the left neck hanging part and/or the right neck hanging part, and a microphone and a speaker are disposed in the housing and are electrically connected with the audio chip respectively.

In some embodiments, a charging interface and/or a wireless charging receiving coil are arranged on the shell of the left neck hanging part and/or the right neck hanging part, and a 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/or the wireless charging receiving coil and the battery. 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 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.

The wireless induction coil can be matched with the wireless charging coil to realize wireless charging of the intelligent glasses. For example, the wireless induction coil may implement wireless charging using wireless charging alliance QI. Above-mentioned coupling assembling can be the connecting wire, connects battery charging outfit through the connecting wire, can realize intelligent glasses's wired charging.

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 power supply assembly of the intelligent glasses to realize charging of the intelligent glasses. The charging interface includes a micro-usb interface, a lighting interface, or a type-c interface, and embodiments of the present disclosure are not limited.

Preferably, the glasses 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. As a preferred embodiment, the middle part of the glasses frame is provided with a gesture recognition camera, a tele camera and a mid-tele camera, the left side and the right side of the glasses frame are respectively provided with a slam camera, the cameras are connected with the left neck hanging part or the right neck hanging part through a signal transmission line to form an operation processing unit, and pictures or videos shot by the cameras are stored in a storage unit and/or are transmitted to the outside through a data interface or a communication module.

Preferably, the spectacle frame is provided with an imaging feedback unit, the imaging feedback units are arranged in one-to-one correspondence with the image display elements, the imaging feedback units are electrically connected with the operation processing units connected with the corresponding image display elements, the imaging feedback units are used for detecting imaging data of the image display elements and feeding the imaging data back to the operation processing units, and the operation processing units judge whether to adjust control signals of the display control units according to the imaging data detected by the imaging feedback units so as to ensure imaging quality. Optionally, as shown in fig. 6, the imaging feedback unit is disposed near the image display element, and a beam splitting unit is disposed between the image display element and the waveguide lens, and the beam splitting unit conducts a part of the image light emitted from the image display element to the imaging feedback unit. Alternatively, as shown in fig. 7, when the light emitting direction of the image display element is perpendicular to the waveguide lens, the imaging feedback unit and the image display element are symmetrically disposed on two sides of the waveguide lens, and the coupling efficiency of the coupling unit is lower than 100%, so that the imaging feedback unit receives the light transmitted from the coupling unit for detecting imaging data.

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 battery and the main control circuit board are arranged in the neck hanging assembly, so that the weight of the glasses body is remarkably reduced, and the wearing comfort and the wearing stability of a user are improved on the premise of not affecting the functions and the performances of the glasses. And the neck hanging component is formed by two detachable neck hanging parts, so that the neck hanging component is convenient to wear and take down. The glasses body can be worn firstly during use, then the left side and the right side neck hanging parts are worn from two sides of the neck respectively, and are connected through the detachable connecting piece, and the neck hanging component can be taken down by opening the detachable connecting piece during taking down. Of course, the neck hanging component can be worn firstly and then the glasses are worn, so that the convenience of operation is not affected.

The neck hanging accessory is hung on the neck of the user, so that the actions and actions of the user are not hindered.

On the premise of improving the wearing stability and having a larger adaptation range, the display stability is ensured.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the embodiment shown in 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 a fiber scanning image source;

fig. 9 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, the embodiment of the utility model provides AR glasses, comprising a glasses body and a neck hanging assembly formed by two neck hanging parts 3, wherein the glasses body comprises a glasses frame 1 for a user to wear and an image display element 21 arranged on the glasses frame 1, the glasses frame comprises a glasses frame 11, a left lens 121 and a right lens 122 are arranged in the glasses frame 11, the image display element 21 comprises at least one first image display element 21 for emitting image light to the left lens 121 and at least one second image display element 21 for emitting image light to the left lens 121,

The left lens 121 and the right lens 122 that receive the image light emitted from the image display element 21 are both waveguide lenses 100,

the neck hanging component is worn on the neck of the user, the two neck hanging parts 3 are respectively positioned on the left side and the right side of the neck of the user, the rear ends of the two neck hanging parts 3 are connected through a detachable connecting piece 301, the two neck hanging parts 3 after connection form a U shape with an opening at the front end,

the left-hand neck hanging part 3 is connected with the first image display element 21 through the cable 2, the right-hand neck hanging part 3 is connected with the second image display element 21 through the cable 2,

the neck hanging part 3 comprises a shell 300, a battery 22 and a main control circuit board 23, wherein the battery 22 and the main control circuit board 23 are arranged in the shell 300, the battery 22 is electrically connected with the main control circuit board 23, and the battery 22 and the main control circuit board 23 are connected with corresponding image display elements 21 through the cables 2. The battery 22 is used for supplying power to the main control circuit board 23 and the glasses body. Further, the housing 300 has an inner cavity, and the battery 22 and the main control circuit board 23 are disposed in the inner cavity.

Each of the image display elements 21 includes an image source 211 for emitting image light and an imaging lens group 212 disposed on an emitting light path of the image source 211.

The waveguide lens 100 has a coupling-in unit 110 for receiving image light of the image display element 21, the coupling-in unit 110 being disposed in front of the image display element 21 along an outgoing light path of the image display element 21 disposed in correspondence thereto, the waveguide lens 100 being positioned in front of an eye of a wearing user, the image display element 21 projecting the image light to the coupling-in unit 110 of the waveguide lens 100, the waveguide lens 100 being for guiding light outgoing from the image display element 21 and external real environment light into a human eye. In some embodiments, the housing is provided with a heat dissipation hole, and a heat dissipation fan for blowing air flow to the heat dissipation hole is arranged in the housing.

According to the utility model, the battery 22 and the main control circuit board 23 are arranged in the neck hanging assembly, so that the weight of the glasses body is remarkably reduced, and the wearing comfort of a user is improved on the premise of not affecting the functions and performances of the glasses. And hang the neck subassembly and constitute through two detachable string neck branches 3, conveniently wear and take off. The glasses body can be worn firstly when in use, then the left and right neck hanging parts 3 are worn from two sides of the neck respectively and are connected through the detachable connecting piece 301, and the neck hanging component can be taken down by opening the detachable connecting piece 301 when taken down. Of course, the neck hanging component can be worn firstly and then the glasses are worn, so that the convenience of operation is not affected.

The frame 11 may be made of various materials such as metal, plastic, and ceramic, and is not limited thereto. In some embodiments, the middle of the frame 11 is provided with a nose pad.

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 light from the image source 211 introduced by the coupling unit 110, guide the light to the human eye, and guide light reflected by an external real object to the human eye, so that the human eye can see an image of the external real object and also see a virtual image, thereby realizing augmented reality display.

In some embodiments, as shown in fig. 4 and 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 from the coupling-in unit 110 to the waveguide lens 100, 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.

The left side and the right side of the mirror frame 11 can be respectively provided with a left mirror leg 13 and a right mirror leg 14, the left mirror leg 13 and the right mirror leg 14 are provided with a containing cavity for installing the image display element 21, the containing cavity is a cavity with an opening at the front side, and the image display element 21 is installed in the containing 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. The front ends of the left and right temples 13 and 14 are connected to the left and right ends of the frame 11, respectively. The connection mode between the glasses legs and the glasses frame 11 is not limited, the left glasses leg 13 or the right glasses leg 14 can be connected with the cross beam through a conventional hinge structure, and the left glasses leg 13 or the right glasses leg 14 can be fixedly connected with the cross beam or integrally formed.

In some embodiments, in order to ensure imaging quality, the coupling unit 110 of the waveguide lens 100 and the image display element 21 should be fixed in relative position as much as possible, so it is preferable that the left or right temple 13 or 14 provided with the image display element 21 each include an undeformed portion 101 provided with the image display element 21 and an elastically deformed portion 102 fixedly connected or hinged to the undeformed portion 101 at a rear side of the undeformed portion 101. The non-deformable portion 101 and the elastically deformable portion 102 can be easily stored when hinged. Of course, in other preferred embodiments, the non-deformable portion 101 is fixedly connected to the frame 11.

Alternatively, the frame 11 may be coupled with other wearing components that may be used to be worn on the head of the user, such as straps, headgear, helmets, etc. In some embodiments, the accommodating chamber for mounting the image display element 21 is provided on the frame 11, and it is preferable that the extending direction of the accommodating chamber and the image display element 21 in the accommodating chamber is the same as the extending direction of the portion of the frame 11 where it is located. For example, when the accommodating cavity is disposed at the upper edge of the mirror frame 11, the extending direction of the accommodating cavity and the image display element 21 is substantially along the left-right direction, and the imaging lens group 212 of the image display element 21 includes a reflector that reflects light toward the waveguide lens 100, so that the coupling-in unit 110 of the waveguide lens 100 matched with the image display element 21 is located in front of the light-emitting path of the reflector, and preferably, the coupling-in unit 110 is located above the waveguide lens 100, and the accommodating cavity further includes a light-transmitting cavity that communicates the reflector with the coupling-in unit 110. When the accommodating cavity is provided at the other edge of the frame 11, the accommodating cavity and the image display element 21 are provided in the same manner. The technical scheme that the image display element 21 is disposed on the mirror frame 11 can avoid the problem that the included angle between the mirror leg and the mirror frame 11 is changed due to the influence of the head diameter of the user, so that the included angle between the outgoing direction of the image display element 21 and the extending direction of the coupling-in unit 110 deviates from the design value, and further the imaging quality is affected.

The main control circuit board 23 of the neck hanging part 3 is provided with a storage unit, an operation processing unit 231 and a display control unit, the battery 22, the storage unit and the display control unit are respectively and electrically connected with the operation processing unit 231, and the display control unit is connected with the image display element 21 through the cable 2. Further alternatively, 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 operation processing unit 231 may include one or more processing cores. The arithmetic processing unit 231 connects the respective parts within the respective neck hanging section 3 and the respective image display elements 21 with various interfaces and lines, and executes various functions and processes data of the respective image display elements 21 and the respective parts within the respective neck hanging section 3 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 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.

The detachable connector 301 may be a detachable connector 301 which is convenient to be detached and assembled, such as magnetic attraction, buckle, plug-in connection, and the like, and is not limited thereto. For example, the detachable connection member 301 includes a first magnetic connection member disposed at the rear end of the left neck hanging portion 3 and a first magnetic connection member disposed at the rear end of the right neck hanging portion 3, or the detachable connection member 301 includes a plug disposed at the rear end of the left neck hanging portion 3 and a jack disposed at the rear end of the right neck hanging portion 3, or the detachable connection member 301 includes a first clamping member disposed at the rear end of the left neck hanging portion 3 and a second clamping member disposed at the rear end of the right neck hanging portion 3.

In some embodiments, the left neck hanging part 3 and/or the right neck hanging part 3 is provided with a data interface on the housing 300, and the operation processing unit 231 is connected to the data interface through a data line, where the data interface is used to connect 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.

In some embodiments, the left neck hanging part 3 and/or the main control circuit board 23 of the right neck hanging part 3 are 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 acquire 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 left neck hanging part 3 and/or the right neck hanging part 3 are/is provided with an audio chip on the main control circuit board 23, and the shell 300 is provided with a microphone and a speaker, which are electrically connected with the audio chip respectively.

In some embodiments, the left neck hanging part 3 and/or the right neck hanging part 3 is provided with a charging interface and/or a wireless charging receiving coil on the housing 300, and the main control circuit board 23 is provided with a battery 22 management module for charging the battery 22. The battery 22 management module is electrically connected between the charging interface and/or the wireless charging receiving coil and the battery 22. 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 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.

The wireless induction coil can be matched with the wireless charging coil to realize wireless charging of the intelligent glasses. For example, the wireless induction coil may implement wireless charging using wireless charging alliance QI. Above-mentioned coupling assembling can be the connecting wire, connects battery charging outfit through the connecting wire, can realize intelligent glasses's wired charging.

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 power supply assembly of the intelligent glasses to realize charging of the intelligent glasses. The charging interface includes a micro-usb interface, a lighting interface, or a type-c interface, and embodiments of the present disclosure are not limited.

Preferably, the spectacle frame 1 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. As a preferred embodiment, the middle part of the glasses frame 1 is provided with a gesture recognition camera, a tele camera and a mid-tele camera, the left side and the right side of the glasses frame 1 are respectively provided with a slam camera, the cameras are connected with the left neck hanging part 3 or the right neck hanging part 3 through a signal transmission line by the operation processing unit 231, and pictures or videos shot by the cameras are stored in the storage unit and/or are transmitted to the outside through a data interface or a communication module.

Preferably, the spectacle frame 1 is provided with an imaging feedback unit 24, the imaging feedback unit 24 is disposed in one-to-one correspondence with the image display elements 21, the imaging feedback unit 24 is electrically connected with an operation processing unit 231 connected with the corresponding image display element 21, the imaging feedback unit 24 is used for detecting imaging data of the image display element 21 and feeding the imaging data back to the operation processing unit 231, and the operation processing unit 231 determines whether to adjust a 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, when the light emitting direction of the image display element 21 is perpendicular to the waveguide lens 100, 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.

Alternatively, the image source 211 may be a fiber scan image source 212, 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 requirement on the optical module is high, and preferably, the image source 211 is an optical fiber scanning image source 212, and the display of the virtual image is realized in cooperation with related optical elements. The fiber scanning image source 212 is small, lightweight, and has significantly better display effects than LCD, LED, LCoS, DLP, OLED, or other image sources. Of course, it should be understood that the scanning display device is not limited to a fiber 201 scanner, and in other embodiments, scanning display devices such as Micro-Electro-Mechanical System (MEMS) scanning mirrors may also be employed.

Further, as shown in fig. 8 and 9, 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 is driven by a driving signal to perform a two-dimensional scanning motion with respect to the fixed end, the exit 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 on the spectacle frame, and the fixed end of the specific scanning driver 200 is fixedly mounted in the accommodating cavity of the spectacle frame 11 or the temple.

The neck hanging part 3 or the glasses frame is provided with a laser set 202 and a beam combining unit 203. Optionally, the laser set 202 and the beam combining unit 203 are disposed in the accommodating cavity of the lens frame 11 or the lens leg. The laser set 202 includes a plurality of monochromatic lasers 2021, where 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 of the monochromatic lasers 2021 emits light beams of different colors. 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 a beam of laser light through the beam combining unit 203 and coupled into the optical fiber 201, the laser group 202 is electrically connected with the light source modulation circuit 204, the scanning driver 200 is electrically connected with the driving control circuit 205, and the operation processing unit 231 is respectively connected with the light source modulation circuit 204 and the driving control circuit 205. Therefore, when the laser set 202 and the beam combining unit 203 are disposed in the neck hanging part 3, the cable 2 connecting the neck hanging part 3 and the image display element 21 includes a transmission line for transmitting an electrical signal and an optical fiber 201 connecting the beam combining unit 203 and the optical fiber scanning image source 212; when the laser set 202 and the beam combining unit 203 are disposed in the glasses body, the cable 2 connecting the neck portion 3 and the image display device 21 only includes a transmission line for transmitting electrical signals.

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 sweeping, so as to scan out the light beam transmitted in the transmission 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 output end of the transmission optical fiber 201 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 transmission 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. 9, in one embodiment of the optical fiber scanning image source 212, the scanning driver 200 is fixed in the scanner package through a fixing element, and 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.

Preferably, the tail ends of the left and/or right glasses legs 13 and 14 are provided with a cable 2 interface, and the cable 2 is connected with the cable 2 interface.

In some embodiments, the image display element 21 includes a left image display element and a right image display element, the left lens is a left waveguide lens mated with the left image display element, and the right lens is a right waveguide lens mated with the right image display element.

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:

According to the utility model, the battery and the main control circuit board are arranged in the neck hanging assembly, so that the weight of the glasses body is remarkably reduced, and the wearing comfort of a user is improved on the premise of not affecting the functions and performances of the glasses. And the neck hanging component is formed by two detachable neck hanging parts, so that the neck hanging component is convenient to wear and take down. The glasses body can be worn firstly during use, then the left side and the right side neck hanging parts are worn from two sides of the neck respectively, and are connected through the detachable connecting piece, and the neck hanging component can be taken down by opening the detachable connecting piece during taking down. Of course, the neck hanging component can be worn firstly and then the glasses are worn, so that the convenience of operation is not affected.

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 (27)

1. The AR glasses are characterized by comprising a glasses body and a neck hanging assembly formed by two neck hanging parts, wherein the glasses body comprises a glasses frame used for being worn by a user and an image display element arranged on the glasses frame, the glasses frame comprises a glasses frame, a left lens and a right lens are arranged in the glasses frame, the image display element comprises at least one first image display element emitting image light to the left lens and at least one second image display element emitting image light to the right lens, the first image display element and the second image display element are image display elements with the same structure,

the left lens and the right lens which receive the image light emitted by the image display element are waveguide lenses,

the neck hanging component is worn on the neck of the user, the two neck hanging parts are respectively positioned at the left side and the right side of the neck of the user, the rear ends of the two neck hanging parts are connected through a detachable connecting piece, the two neck hanging parts after connection form a U shape with an opening at the front end,

the neck hanging part positioned at the left side is connected with the first image display element through a cable, the neck hanging part positioned at the right side is connected with the second image display element through a cable,

the neck hanging part comprises a shell, a battery and a main control circuit board, wherein the battery and the main control circuit board are arranged in the shell, the battery is electrically connected with the main control circuit board, and the battery and the main control circuit board are connected with corresponding image display elements through cables;

The image display element comprises an image source for emitting image light and an imaging lens group arranged on an emitting light path of the image source, wherein the image source is an optical fiber scanning image source, 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 is driven by a driving signal to do two-dimensional scanning motion relative to the fixed end of the scanning driver, the emitting 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 on a spectacle frame.

2. The AR glasses according to claim 1, wherein the waveguide lens has a coupling-in unit for receiving image light of the image display element, the coupling-in unit being disposed in front of the image display element along an outgoing light path of the image display element disposed in correspondence thereto, the waveguide lens being disposed in front of an eye of the wearing user, the image display element projecting the image light to the coupling-in unit of the waveguide lens, the waveguide lens being for guiding light outgoing from the image display element and external real environment light into the human eye.

3. The AR glasses according to claim 1, wherein left and right side of the glasses frame are provided with left and right side legs, respectively, the left and/or right side legs are provided with a receiving cavity for mounting the image display element, the receiving cavity is a cavity with a front opening, and the image display element is mounted in the receiving cavity.

4. The AR glasses according to claim 1, wherein the frame is provided with a receiving chamber for mounting the image display element, and the extending direction of the receiving chamber and the image display element in the receiving chamber is the same as the extending direction of the portion of the frame where the image display element is located.

5. The AR glasses according to claim 3 or 4, wherein the neck hanging part or the glasses frame is provided with a laser group and a beam combining unit, the laser group 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.

6. The AR glasses according to claim 5, wherein the laser unit and the beam combining unit are disposed in the accommodating cavity of the lens frame or the lens leg.

7. The AR glasses according to claim 1, wherein the main control circuit board of the neck hanging part is provided with a storage unit, an operation processing unit and a display control unit, the battery, the storage unit and the display control unit are respectively and electrically connected with the operation processing unit, and the display control unit is connected with the image display element through the cable.

8. The AR glasses according to claim 7, wherein the display control unit includes a light source modulation circuit and a driving control circuit, the laser set is electrically connected to the light source modulation circuit, the scan driver is electrically connected to the driving control circuit, and the operation processing unit is respectively connected to the light source modulation circuit and the driving control circuit.

9. The AR glasses according to claim 7, wherein the left neck hanging part and/or the right neck hanging part are/is provided with a data interface on the casing, and the arithmetic processing unit is connected with the data interface through a data line, and the data interface is used for connecting with the mobile terminal.

10. The AR glasses according to claim 7 or 9, wherein a communication module is provided on a main control circuit board of the left neck hanging part and/or the right neck hanging part, and the communication module is electrically connected with the operation processing unit.

11. The AR glasses according to claim 10, wherein the main control circuit board of the left neck hanging part and/or the right neck hanging part is provided with an audio chip, and the shell is provided with a microphone and a speaker, and the microphone and the speaker are respectively electrically connected with the audio chip.

12. The AR glasses according to claim 10 or 11, wherein a charging interface and/or a wireless charging receiving coil are provided on a casing of the left neck hanging part and/or the right neck hanging part, and a main control circuit board is provided with a battery management module for charging the battery.

13. The AR glasses according to claim 1, wherein at least one camera is provided on the glasses frame, and the camera includes one or more of a gesture recognition camera, a tele camera, a mid-tele camera, and a slam camera.

14. The AR glasses according to claim 7, wherein the arithmetic processing unit is implemented in at least one of a DSP, an FPGA and a PLA in hardware.

15. The AR glasses according to claim 7, wherein the arithmetic processing unit integrates one or a combination of several of a central processor, an image processor and a modem.

16. The AR glasses according to claim 10, 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.

17. The AR glasses according to claim 9, 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.

18. The AR glasses according to claim 12, wherein a battery management module is electrically connected between the charging interface and/or the wireless charging receiving coil and the battery.

19. The AR glasses according to claim 12, 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 1, wherein the glasses frame is provided with an imaging feedback unit, the imaging feedback unit is disposed in one-to-one correspondence with the image display elements, the imaging feedback unit is electrically connected with the operation processing unit to which the corresponding image display element is connected, and the imaging feedback unit is configured to detect imaging data of the image display element and feedback the imaging data to the operation processing unit.

21. The AR glasses according to claim 1, wherein a beam splitting unit is disposed between the image display element and the waveguide lens, the beam splitting unit conducting a portion of the image light emitted from the image display element to the imaging feedback unit.

22. The AR glasses according to claim 20, wherein the imaging feedback unit is symmetrically disposed at both sides of the waveguide lens with respect to the image display element, and the imaging feedback unit receives the light transmitted from the coupling-in unit.

23. The AR glasses according to claim 1, wherein an optical module for diffracting and/or reflecting light is disposed in the waveguide lens, and the optical module is configured to receive light from the image source introduced by the coupling unit, guide the light to the human eye, and guide light reflected by an external physical object to the human eye.

24. The AR glasses according to claim 23, wherein the optical module comprises a relay unit and a coupling-out unit, the relay unit is configured to expand the image source light in the X direction and input the expanded image source light to the coupling-out unit, and expand the image source light in the Y direction in the coupling-out unit and output the expanded image source light to the human eye.

25. The AR glasses according to claim 1, wherein the housing is provided with a heat radiation hole, and a heat radiation fan for blowing air flow to the heat radiation hole is provided in the housing.

26. The AR glasses according to claim 1, wherein the left or right temple provided with the image display element each includes a non-deformable portion provided with the image display element and an elastic deformation portion provided at a rear side of the non-deformable portion and fixedly connected or hinged to the non-deformable portion.

27. The AR glasses according to claim 1, wherein the imaging lens group of the image display element includes a mirror for reflecting light toward the waveguide lens, and the coupling-in unit of the waveguide lens associated with the image display element is located in front of the light-outgoing path of the mirror.