Lens and wearable electronic device comprising same

Abstract

According to an embodiment of the present disclosure, the wearable electronic device may comprise: a lens frame; a waveguide disposed on the lens frame and including a front surface configured to face the eyes of a user who wears the wearable electronic device, and a rear surface opposite to the front surface; a first lens disposed on the front surface of the waveguide, detachably coupled to the lens frame, and configured to adjust the focal distance of light regarding a virtual image output from the waveguide and the focal distance of light regarding an external real object; and a second lens disposed on the rear surface of the waveguide, coupled to the waveguide so as to be integrally formed with the waveguide, and configured to adjust the focal distance of a real image with respect to an external real object. Various other embodiments may be possible.

Description

Lenses and wearable electronic devices including the same

[0001] Various embodiments disclosed in this document relate to wearable electronic devices, for example, to lenses and wearable electronic devices including the same.

[0002] Portable electronic devices, such as electronic notebooks, portable multimedia players, mobile communication terminals, or tablet PCs, typically feature display elements and batteries, and have typically had bar-type, folder-type, or sliding-type appearances due to the shape of the display elements or batteries. Recently, as the performance of display elements and batteries has improved, they have become smaller, leading to the commercialization of wearable electronic devices that can be worn on parts of the body, such as the wrist or head. Since wearable electronic devices are directly worn on the body, portability and / or user accessibility can be improved.

[0003] Among wearable electronic devices, an electronic device that a user can wear on their face, such as a head-mounted device (HMD), is disclosed. Head-mounted devices can be usefully utilized to implement virtual reality or augmented reality. For example, a wearable electronic device can implement virtual reality by providing a three-dimensional image of a virtual space in a game enjoyed through a television or computer monitor while blocking the image of the actual space in which the user is located. Another type of wearable electronic device can provide an environment in which the user can visually perceive an actual image of the space in which the user is located, while implementing a virtual image to provide the user with various visual information, thereby providing augmented reality.

[0004] The above information may be provided as background art to aid in understanding the present disclosure. No claim or determination is made as to whether any of the above is applicable as prior art related to the present disclosure.

[0005] According to one embodiment of the present disclosure, a wearable electronic device may include a lens frame, a waveguide disposed on the lens frame and having a front side configured to face a user's eye when the wearable electronic device is worn by the user, and a rear side opposite to the front side, a first lens disposed on the front side of the waveguide, detachably coupled to the lens frame, and configured to adjust a focal length of light for a virtual image output from the waveguide and a focal length of light for an external real object, and a second lens disposed on the rear side of the waveguide, coupled to the waveguide and formed integrally with the waveguide, and configured to adjust a focal length of light for an external real object.

[0006] According to one embodiment of the present disclosure, a wearable electronic device may include a lens frame, a waveguide disposed on the lens frame and including a front surface facing a user's eye and a rear surface opposite the front surface, a first lens disposed on the front surface of the waveguide, detachably coupled to the lens frame, and configured to adjust a focal length of light for a virtual image output from the waveguide and a focal length of light for an external real object, a holder configured to fix the first lens to the lens frame, and a second lens disposed on the rear surface of the waveguide and configured to adjust a focal length of light for an external real object.

[0007] FIG. 1 is a block diagram of an electronic device within a network environment according to various embodiments.

[0008] FIG. 2 is a perspective view of a wearable electronic device according to various embodiments of the present disclosure.

[0009] FIG. 3 is an exploded perspective view showing a lens assembly according to an embodiment of the present disclosure.

[0010] FIG. 4A is a cross-sectional view of a first lens according to one embodiment of the present disclosure.

[0011] FIG. 4b is a cross-sectional view of a first lens according to one embodiment of the present disclosure.

[0012] FIG. 4c is a cross-sectional view showing a state in which a first lens and a holder are combined according to one embodiment of the present disclosure.

[0013] FIG. 5 is a cross-sectional perspective view of a lens assembly according to one embodiment of the present disclosure.

[0014] FIG. 6 is a cross-sectional view showing a state in which a first lens and a holder are combined according to one embodiment of the present disclosure.

[0015] FIG. 7 is a cross-sectional view of a lens assembly according to one embodiment of the present disclosure.

[0016] FIG. 8 is a perspective view of a lens assembly according to one embodiment of the present disclosure.

[0017] FIG. 9 is a plan view of a lens assembly according to one embodiment of the present disclosure.

[0018] FIG. 10 is a cross-sectional view of a lens frame and holder according to one embodiment of the present disclosure.

[0019] FIGS. 11A and 11B are cross-sectional views of a lens assembly according to one embodiment of the present disclosure.

[0020] FIG. 12 is a perspective view illustrating a state in which a holder is separated according to one embodiment of the present disclosure.

[0021] FIG. 13A is a perspective view of a lens assembly according to one embodiment of the present disclosure.

[0022] FIG. 13b is a perspective view of a lens assembly including a holder and a first lens, according to one embodiment of the present disclosure.

[0023] FIG. 14 is a plan view showing a lens assembly according to one embodiment of the present disclosure.

[0024] FIG. 15 is a cross-sectional view of a lens assembly according to one embodiment of the present disclosure.

[0025] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings so that those skilled in the art can easily implement the present disclosure. However, the present disclosure may be implemented in various different forms and is not limited to the embodiments described herein. In connection with the description of the drawings, the same or similar reference numerals may be used for identical or similar components. Furthermore, in the drawings and related descriptions, descriptions of well-known functions and configurations may be omitted for clarity and conciseness.

[0026] FIG. 1 is a block diagram of an electronic device (101) within a network environment (100) according to various embodiments.

[0027] Referring to FIG. 1, in a network environment (100), an electronic device (101) may communicate with an electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with at least one of an electronic device (104) or a server (108) via a second network (199) (e.g., a long-range wireless communication network). In one embodiment, the electronic device (101) may communicate with the electronic device (104) via the server (108). According to one embodiment, the electronic device (101) may include a processor (120), a memory (130), an input module (150), an audio output module (155), a display module (160), an audio module (170), a sensor module (176), an interface (177), a connection terminal (178), a haptic module (179), a camera module (180), a power management module (188), a battery (189), a communication module (190), a subscriber identification module (196), or an antenna module (197). In some embodiments, the electronic device (101) may omit at least one of these components (e.g., the connection terminal (178)), or may have one or more other components added. In some embodiments, some of these components (e.g., the sensor module (176), the camera module (180), or the antenna module (197)) may be integrated into one component (e.g., the display module (160)).

[0028] The processor (120) may, for example, execute software (e.g., a program (140)) to control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) and perform various data processing or operations. According to one embodiment, as at least a part of the data processing or operations, the processor (120) may store commands or data received from other components (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the commands or data stored in the volatile memory (132), and store result data in a non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or an auxiliary processor (123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together with the main processor (121). For example, when the electronic device (101) includes the main processor (121) and the auxiliary processor (123), the auxiliary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a given function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as a part thereof.

[0029] The auxiliary processor (123) may control at least a portion of functions or states associated with at least one component (e.g., a display module (160), a sensor module (176), or a communication module (190)) of the electronic device (101), for example, on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (123) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (180) or a communication module (190)). In one embodiment, the auxiliary processor (123) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, on the electronic device (101) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (108)). The learning algorithm can include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model can include multiple artificial neural network layers.The artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.

[0030] The memory (130) can store various data used by at least one component (e.g., processor (120) or sensor module (176)) of the electronic device (101). The data can include, for example, software (e.g., program (140)) and input data or output data for commands related thereto. The memory (130) can include volatile memory (132) or non-volatile memory (134).

[0031] The program (140) may be stored as software in the memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0032] The input module (150) can receive commands or data to be used in a component of the electronic device (101) (e.g., a processor (120)) from an external source (e.g., a user) of the electronic device (101). The input module (150) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0033] The audio output module (155) can output audio signals to the outside of the electronic device (101). The audio output module (155) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. In one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0034] The display module (160) can visually provide information to an external party (e.g., a user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. According to one embodiment, the display module (160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch.

[0035] The audio module (170) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150), output sound through the sound output module (155), or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (101).

[0036] The sensor module (176) can detect the operating status (e.g., power or temperature) of the electronic device (101) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one embodiment, the sensor module (176) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0037] The interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) with an external electronic device (e.g., the electronic device (102)). In one embodiment, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0038] The connection terminal (178) may include a connector through which the electronic device (101) may be physically connected to an external electronic device (e.g., electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0039] The haptic module (179) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. According to one embodiment, the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0040] The camera module (180) can capture still images and videos. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0041] The power management module (188) can manage power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0042] A battery (189) may power at least one component of the electronic device (101). In one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0043] The communication module (190) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may operate independently from the processor (120) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (190) may include a wireless communication module (192) (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (194) (e.g., a local area network (LAN) communication module, or a power line communication module). Among these communication modules, the corresponding communication module can communicate with an external electronic device (104) via a first network (198) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (199) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules can be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can verify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) by using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196).

[0044] The wireless communication module (192) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). The NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (192) can support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (192) can support various requirements specified in the electronic device (101), an external electronic device (e.g., the electronic device (104)), or a network system (e.g., the second network (199)). According to one embodiment, the wireless communication module (192) can support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for URLLC realization.

[0045] The antenna module (197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one embodiment, the antenna module (197) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). In one embodiment, the antenna module (197) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as the first network (198) or the second network (199), may be selected from the plurality of antennas, for example, by the communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device via the selected at least one antenna. In some embodiments, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (197).

[0046] According to various embodiments, the antenna module (197) may form a mmWave antenna module. In one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high-frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high-frequency band.

[0047] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).

[0048] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) via a server (108) connected to a second network (199). Each of the external electronic devices (102 or 104) may be the same or a different type of device as the electronic device (101). According to one embodiment, all or part of the operations executed in the electronic device (101) may be executed in one or more of the external electronic devices (102, 104, or 108). For example, when the electronic device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (101) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least a part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In another embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server utilizing machine learning and / or a neural network. According to one embodiment, the external electronic device (104) or the server (108) may be included in the second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0049] Electronic devices according to the various embodiments disclosed in this document may take various forms. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to the embodiments of this document are not limited to the aforementioned devices.

[0050] The various embodiments of this document and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0051] The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0052] Various embodiments of the present document may be implemented as software (e.g., a program (140)) including one or more instructions stored in a storage medium (e.g., an internal memory (136) or an external memory (138)) readable by a machine (e.g., an electronic device (101)). For example, a processor (e.g., a processor (120)) of the machine (e.g., an electronic device (101)) may call at least one instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.

[0053] According to one embodiment, the method according to various embodiments disclosed in this document may be provided as included in a computer program product. The computer program product may be traded as a product between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read-only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) through an application store (e.g., Play Store™) or directly between two user devices (e.g., smart phones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0054] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

[0055] FIG. 2 is a perspective view of a wearable electronic device according to various embodiments of the present disclosure.

[0056] The embodiment of FIG. 2 can be combined with the embodiment of FIG. 1, or the embodiments of FIGS. 3 to 15.

[0057] Referring to FIG. 2, a wearable electronic device (101) is an electronic device in the form of glasses (e.g., the electronic device (101) of FIG. 1), which allows a user to visually perceive surrounding objects or environments while wearing the wearable electronic device (101). For example, the wearable electronic device (101) may include smart glasses or AR (augmented reality) glasses capable of directly providing images in front of the user's eyes. The configuration of the wearable electronic device (101) of FIG. 2 may be partially or entirely identical to the configuration of the electronic device (101) of FIG. 1.

[0058] According to one embodiment, the wearable electronic device (101) may include a housing (210) that forms the exterior of the wearable electronic device (101). The housing (210) may provide a space in which components of the wearable electronic device (101) may be placed. For example, the housing (210) may include a lens frame (202) and at least one wearing member (203).

[0059] According to one embodiment, the wearable electronic device (101) may include a display member (201) disposed within a housing (210) and capable of outputting a visual image. For example, the wearable electronic device (101) may include at least one display member (201) capable of providing visual information (or images) to a user. For example, the display member (201) may include a module equipped with a lens, a display, a waveguide, and / or a touch circuit. According to one embodiment, the display member (201) may be formed transparently or translucently. According to one embodiment, the display member (201) may include a window member whose light transmittance may be adjusted by adjusting a glass of a translucent material or a tinting concentration.

[0060] In one embodiment, the lens frame (202) can accommodate at least a portion of the indicator member (201). For example, the lens frame (202) can surround at least a portion of an edge of the indicator member (201). In one embodiment, the lens frame (202) can position at least one of the indicator members (201) relative to a user's eye. In one embodiment, the lens frame (202) can include a rim of a typical eyeglass structure.

[0061] In one embodiment, the lens frame (202) may include at least one closed curve surrounding the display member (201). In one embodiment, the lens frame (202) may include a first end (202a) and a second end (202b) opposite the first end (202a). The first end (202a) may be disposed adjacent to the first wearing member (203a), and the second end (202b) may be disposed adjacent to the second wearing member (203b).

[0062] In one embodiment, the wearing member (203) may extend from the lens frame (202). For example, the wearing member (203) may extend from an end of the lens frame (202) and, together with the lens frame (202), may be supported or positioned on a user's body (e.g., an ear). In one embodiment, the wearing member (203) may be rotatably coupled to the lens frame (202) via a hinge structure (229). In one embodiment, the wearing member (203) may include an inner side (231a) configured to face the user's body and an outer side (231b) opposite the inner side (231a). In one embodiment, at least a portion of the wearing member (203) may be formed of a flexible material (e.g., rubber). For example, at least a portion of the wearing member (203) may be formed in a band shape that surrounds at least a portion of the user's body (e.g., an ear).

[0063] According to one embodiment, the wearable electronic device (101) may include a hinge structure (229) configured to fold the wearing member (203) relative to the lens frame (202). The hinge structure (229) may be positioned between the lens frame (202) and the wearing member (203). When the user is not wearing the wearable electronic device (101), the user may fold the wearing member (203) so that a portion thereof overlaps the lens frame (202) and carry or store the device. In one embodiment, the hinge structure (229) may include a first hinge structure (229a) connected to a portion of the lens frame (202) (e.g., a first end (202a)) and a first wearing member (203a) and a second hinge structure (229b) connected to a portion of the lens frame (202) (e.g., a second end (202b)) and a second wearing member (203b).

[0064] In the present disclosure, 'Augmented Reality' may mean overlaying a virtual image generated by a computer onto a physical, real-world environment or real-world object to display it as a single image.

[0065] In the present disclosure, a "real scene" refers to a scene of the real world viewed by an observer or user through an augmented reality display device (e.g., a wearable electronic device (101)), and may include real world objects. Meanwhile, a "virtual image" may be an image generated by a display engine. The virtual image may include both static and dynamic images. Such a virtual image may be an image overlaid on a real scene, showing information about a real object in the real scene, information about the operation of an augmented reality device, or a control menu.

[0066] According to one embodiment, a wearable electronic device (101) may include a display engine for generating a virtual image composed of light generated from a light source.

[0067] According to one embodiment, at least one display member (201) may include a wave guide (e.g., wave guide (320) of FIG. 3) configured to guide a virtual image provided from the display engine to the user's eyes.

[0068] FIG. 3 is an exploded perspective view showing a lens assembly according to an embodiment of the present disclosure.

[0069] FIG. 4A is a cross-sectional view of a first lens according to one embodiment of the present disclosure.

[0070] FIG. 4b is a cross-sectional view of a first lens according to one embodiment of the present disclosure.

[0071] FIG. 4c is a cross-sectional view showing a state in which a first lens and a holder are combined according to one embodiment of the present disclosure.

[0072] FIG. 5 is a cross-sectional perspective view of a lens assembly according to one embodiment of the present disclosure.

[0073] FIG. 6 is a cross-sectional view showing a state in which a first lens and a holder are combined according to one embodiment of the present disclosure.

[0074] FIG. 7 is a cross-sectional view of a lens assembly according to one embodiment of the present disclosure.

[0075] The embodiments of FIGS. 3 to 6 can be combined with the embodiments of FIGS. 1 to 2, or the embodiments of FIGS. 4a to 15.

[0076] Referring to FIGS. 3 to 6, the lens assembly (300) may include a lens frame (310), a wave guide (320), a first lens (330), a holder (340), and a second lens (350).

[0077] According to the illustrated embodiments, a lens assembly (300) corresponding to the user's right eye is illustrated; however, the present disclosure is not limited thereto and may include a pair of lens assemblies corresponding to both eyes of the user.

[0078] Below, the description of the direction in which the wave guide (320), the first lens (330), and the second lens (350) face may be defined as the direction in which the center of each component faces, but is not limited thereto.

[0079] Referring to FIG. 3, the lens assembly (300) may form at least a portion of a wearable electronic device (e.g., the wearable electronic device (101) of FIG. 2).

[0080] According to one embodiment, a lens frame (310) (e.g., lens frame (202) of FIG. 2) can support a waveguide (320), a first lens (330), a holder (340), and a second lens (e.g., a second lens (350) of FIG. 5). The lens frame (310) can form the overall body of the lens assembly (300). The lens frame (310) can at least partially accommodate the waveguide (320), the first lens (330), the holder (340), and the second lens (350).

[0081] According to one embodiment, a display member (e.g., display member (201) of FIG. 2) may include a wave guide (320), a first lens (330), and a second lens (350). The edge of the display member may be surrounded by a lens frame (310).

[0082] According to one embodiment, the display member may be provided as a pair corresponding to the left and right eyes of the user, but is not limited thereto.

[0083] According to one embodiment, the lens frame (310) may include a rim surrounding the edge of the display member. The rim may define the overall shape of the lens frame (310). The lens frame (310) may include a pair of rims. Each pair of rims may support or accommodate a pair of display members.

[0084] According to one embodiment, the lens frame (310) may include a connecting portion (310a) to which a wearing member (e.g., the wearing member (203) of FIG. 2) is rotatably or foldably coupled. A display engine configured to provide a virtual image to a wave guide (320) may be disposed in the connecting portion (310a), but is not limited thereto.

[0085] According to one embodiment, the lens frame (310) may include a nose pad (310b). The nose pad (310b) may be supported by the user's nose.

[0086] According to one embodiment, the lens frame (310) may include a bridge (310c). The bridge (310c) may be positioned between a pair of rims of the lens frame (310) to connect the pair of rims.

[0087] According to one embodiment, the lens frame (310) may include an accommodating portion (312) formed on at least a portion of the lens frame (310). The accommodating portion (312) may include a recess formed in a rim of the lens frame (310). The accommodating portion (312) may include a hole formed in the rim of the lens frame (310).

[0088] According to one embodiment, the receiving portion (312) can receive an inserted portion (342) of the holder (340).

[0089] According to one embodiment, the wave guide (320) may be fixed to the lens frame (310), but is not limited thereto. The edge of the wave guide (320) may be coupled to the rim of the lens frame (310).

[0090] According to one embodiment, the wave guide (320) may be configured to guide a virtual image generated from a display engine of a wearable electronic device to the user's eyes. The display engine may be disposed at the connection portion (310a), but is not limited thereto. The wave guide (320) may be formed of a material transparent to the visible light band so that a real-world scene (e.g., a real object) can be viewed along with the virtual image, but is not limited thereto. The display engine may be configured to generate light for the virtual image. The display engine may include a projector including an image panel, an illumination optical system, or a projection optical system. For example, the display engine may include a device that emits light to output a virtual object or a virtual image at a predetermined viewing angle. For example, the display engine may include a projector that projects light generated by the image panel or a projector that scans modulated light, but is not limited thereto.

[0091] According to one embodiment, the display engine may be configured to output polarized light or unpolarized light depending on the method of the image panel or the illumination optical system. The display engine may include, but is not limited to, a Liquid Crystal on Silicon (LCoS) panel, an LED on Silicon (LEDoS) panel, or a Digital Micromirror Device (DMD) panel.

[0092] According to one embodiment, the wave guide (320) can receive light of a virtual image output from a display engine. The light input to the wave guide (320) can be diffracted at or within the wave guide (320) and output to the user's eyes.

[0093] According to one embodiment, the wave guide (320) may be positioned between the first lens (330) and the second lens (e.g., the second lens (350) of FIG. 5).

[0094] In one embodiment, the first lens (330) may be positioned on the inner surface of the wave guide (320) (e.g., the surface facing the user's eye). The second lens (350) may be positioned on the outer surface of the wave guide (320) (e.g., the surface facing the real object).

[0095] According to one embodiment, the first lens (330) may be detachably coupled to the lens frame (310). For example, the first lens (330) may be configured to be replaceable. For example, the lens assembly (300) may be configured to allow the first lens (330) to be replaced depending on the user's eyesight.

[0096] In one embodiment, the focal length of the light for a virtual image provided from the display engine and output toward the user's eyes through the wave guide (320) may range from about 4 meters to infinity. For example, if a virtual image with the focal length reaches the user's eyes, the user may perceive the virtual image as foreign.

[0097] According to one embodiment, the first lens (330) may be positioned between the waveguide (320) and the user's eye to reduce the focal length of the virtual image reaching the user's eye. The first lens (330) may have negative lens power. For example, the focal length of the virtual image output from the waveguide (320) and reaching the user's eye through the first lens (330) may be reduced to about 2 meters, but is not limited thereto. By adjusting the focal length of the virtual image reaching the user's eye through the first lens (330), the user may feel that the virtual image is not incongruous. The first lens (330) may be defined and / or referred to as a pull lens, but is not limited thereto.

[0098] According to one embodiment, the first lens (330) may be configured to adjust the focal length of light for a virtual image output from the wave guide (320) and the focal length of light for an external real object.

[0099] According to one embodiment, the first lens (330) may have a vision correction function corresponding to the user's vision.

[0100] According to one embodiment, the first lens (330) can be detachably coupled to the rim of the lens frame (310) via a holder (340).

[0101] In one embodiment, the holder (340) may surround the edge of the first lens (330). In one embodiment, the first lens (330) may be secured to the holder (340).

[0102] According to one embodiment, the holder (340) can be coupled to or detached from the lens frame (310). The holder (340) can allow the first lens (330) to be fixed to the lens frame (310).

[0103] In one embodiment, the holder (340) may include an insertion portion (342). The insertion portion (342) may protrude from at least a portion of the holder (340), but is not limited thereto. The insertion portion (342) may be aligned with the receiving portion (312) and inserted into the receiving portion (312).

[0104] According to one embodiment, the insertion portion (342) may include a magnet. The magnet of the insertion portion (342) may form an attractive force with a magnet or metal disposed in the receiving portion (312). The magnet of the insertion portion (342) may provide a force to maintain the holder (340) disposed in the lens frame (310) in a fixed state to the lens frame (310).

[0105] According to one embodiment, the insertion portion (342) may include a slit (343) formed on an outer surface of the insertion portion (342). The slit (343) may be formed by being recessed in at least a portion of the outer surface of the insertion portion (342). The slit (343) may provide a space that can be caught by a user's fingernail so that the holder (340) and the first lens (330) can be easily separated from the lens frame (310).

[0106] FIGS. 4A and 4B illustrate cross-sections of the first lens (330) cut along line A-A' of FIG. 3.

[0107] Referring to FIGS. 4A and 4B, the first lens (330) may include a first surface (331) and a second surface (332). The first surface (331) may face the wave guide (320). The second surface (332) may be opposite the first surface (331). The second surface (332) may face the user's eyes.

[0108] In one embodiment, the first lens (330) may have a negative lens power to reduce the focal length of light for a virtual image output from the waveguide (320).

[0109] Referring to FIG. 4A, the first lens (330) may be formed to correspond to the vision of a user requiring vision correction through a positive diopter value. For example, the first surface (331) facing the wave guide (320) may include a flat surface, and the second surface (332) facing the user's eye may include a convex surface.

[0110] Referring to FIG. 4B, the first lens (330) may be configured to correspond to the vision of a user requiring vision correction through a negative diopter value. For example, the first surface (331) facing the wave guide (320) may include a flat surface, and the second surface (332) facing the user's eye may include a concave surface.

[0111] Referring to FIGS. 4A and 4B , the lens assembly (300) is configured to allow the user to select and / or replace the first lens (330) according to the user's eyesight, thereby allowing the user to use the wearable electronic device through the first lens (330) corresponding to his or her eyesight. In some embodiments, the first lens (330) may be configured to correspond to the user's eyesight that does not require eyesight correction with a diopter value of zero, but is not limited thereto.

[0112] Referring to FIG. 4C, the first lens (330) may include a lateral surface (333) and a protrusion (334). The lateral surface (333) may be defined as a surface that contacts or is connected to the holder (340). The lateral surface (333) may be defined as an edge of the first lens (330). The protrusion (334) may protrude from the lateral surface (333). The holder (340) may include a recess (344) formed in a portion facing the lateral surface (333) of the first lens (330). The protrusion (334) may be received and / or fixed in the recess (344). The protrusion (334) and the recess (344) may limit and / or reduce the first lens (330) from being detached from the holder (340). According to an embodiment, a recess may be formed on the side surface (333) of the first lens (330), and a protrusion may be formed on the holder (340).

[0113] Figure 5 is a drawing including a cross-section cut along line BB' of Figure 3.

[0114] Referring to FIG. 5, the wave guide (320) may include a front side (321) and a rear side (322). The front side (321) may face the user's eyes. The rear side (322) may be opposite to the front side (321). For example, the front side (321) may face the user's eyes when the wearable electronic device is worn by the user. The front side (321) may be defined and / or referred to as a first portion. The rear side (322) may be defined and / or referred to as a second portion.

[0115] According to one embodiment, the front surface (321) may face the first surface of the first lens (330) (e.g., the first surface (331) of FIG. 4). The front surface (321) may include a flat surface. The front surface (321) may be in contact with the first surface (331). For example, a gap may not be formed between the front surface (321) and the first surface (331). Since the wave guide (320) and the first lens (330) are in contact with each other and no gap is formed therebetween, the overall thickness of the lens assembly (300) may be provided to be thin.

[0116] According to one embodiment, the rear surface (322) may face the second lens (350). The rear surface (322) may include a flat surface. The wave guide (320) may include a diffractive element (325) formed on the rear surface (322). The diffractive element (325) may diffract light for a virtual image generated or output from the display engine. For example, light of a virtual image generated or output from the display engine may be diffracted by the diffractive element (325) and output to the user's eyes.

[0117] According to one embodiment, the diffractive element (325) may include, but is not limited to, a diffractive optical element (DOE), a holographic optical element (HOE), a polymer dispered liquid crystal (PDLC), a meta surface, or a meta grating.

[0118] According to one embodiment, the diffractive element (325) may be formed on the rear surface (322) and covered by the second lens (350). According to one embodiment, the front surface (321) of the waveguide (320) may be exposed to the outside of the lens assembly (300) by replacing the first lens (330). The rear surface (322) of the waveguide (320) may be covered by the second lens (350) and may not be exposed to the outside of the lens assembly (300). Accordingly, the diffractive element (325) formed on the rear surface (322) may not be exposed to the outside during distribution or use of the lens assembly (300) and / or the wearable electronic device, thereby limiting and / or reducing the occurrence of breakage and / or cracking.

[0119] According to one embodiment, the diffractive element (325) may be provided in the shape of a plurality of grooves when looking at the cross-section of the wave guide (320), but is not limited thereto. The diffractive element (325) may also be provided in a wave shape. The shape of the diffractive element (325) is exemplary, and the diffractive element (325) may have various shapes.

[0120] According to one embodiment, the second lens (350) may be placed on the rear surface (322) of the wave guide (320). The second lens (350) may cover the rear surface (322).

[0121] According to one embodiment, the second lens (350) may be combined with the wave guide (320) and formed integrally with the wave guide (320).

[0122] According to one embodiment, the second lens (350) can increase the focal length of light for a real object reaching the user's eyes. The second lens (350) can have positive lens power. For example, light for a real object reaching the user's eyes from a real object can have its focal length increased by the second lens (350) and then decreased by the first lens (330). Accordingly, when light for a real object reaches the user's eyes, the user can experience enhanced immersion without feeling a perceptual discrepancy with respect to the real object. For example, if the second lens (350) is not present, the focal length of light for a real object can be decreased by the first lens (330). Accordingly, the user may perceive the real object differently from reality and feel a perceptual discrepancy. The second lens (350) may be defined and / or referred to as a push lens, but is not limited thereto.

[0123] According to one embodiment of the present disclosure, the user can feel that the virtual image is not incongruous because the focal length of the virtual image is adjusted by the first lens (330). In addition, the user can feel that the real object is not incongruous because the focal length of the light for the real object is adjusted by the second lens (350) and the first lens (330). In addition, the user can select the first lens (330) having a diopter corresponding to the user's eyesight and utilize the wearable electronic device to suit the user's eyesight, thereby providing an immersive AR environment.

[0124] According to one embodiment, the edge of the waveguide (320) and the edge of the second lens (350) may be surrounded by the lens frame (310). For example, the rim of the lens frame (310) may include a first fixed portion (313a) and a second fixed portion (313b). The first fixed portion (313a) and the second fixed portion (313b) may protrude from the rim of the lens frame (310). The first fixed portion (313a) and the second fixed portion (313b) may be spaced apart from each other. The edge of the waveguide (320) and the edge of the second lens (350) may be positioned between the first fixed portion (313a) and the second fixed portion (313b) and fixed to the lens frame (310). The first fixed part (313a) and the second fixed part (313b) can allow the wave guide (320) and the second lens (350) to be fixed to the lens frame (310).

[0125] According to one embodiment, the lens frame (310) may include a third fixing portion (310d). The third fixing portion (310d) may protrude from at least a portion of the connecting portion (310a). When the holder (340) is placed on the lens frame (310), the third fixing portion (310d) may contact a portion of the holder (340) to limit and / or reduce the holder (340) from being detached from the lens frame (310).

[0126] Referring to FIG. 6, a first lens (330) fixed to a holder (340) is illustrated in a state of being fixed to a lens frame (310). For example, the holder (340) may be fixed to the lens frame (310) in a state where the insertion portion (342) of the holder (340) is aligned and inserted into the receiving portion (e.g., the receiving portion (312) of FIG. 3) of the lens frame (310). At least a portion of the holder (340) may be covered by the third fixing portion (310d).

[0127] Fig. 7 is a cross-sectional view of the lens assembly (300) cut along the CC' line of Fig. 6.

[0128] Referring to FIG. 7, the front surface (321) of the wave guide (320) may include a flat surface. The first surface (331) of the first lens (330) may include a flat surface. The front surface (321) may be arranged parallel to the first surface (331).

[0129] According to the illustrated embodiment, the front surface (321) may be spaced apart from the first surface (331), but is not limited thereto. For example, when the front surface (321) and the first surface (331) are in contact with each other, a gap may not be formed therebetween.

[0130] FIG. 8 is a perspective view of a lens assembly according to one embodiment of the present disclosure.

[0131] FIG. 9 is a plan view of a lens assembly according to one embodiment of the present disclosure.

[0132] FIG. 10 is a cross-sectional view of a lens frame and holder according to one embodiment of the present disclosure.

[0133] FIGS. 11A and 11B are cross-sectional views of a lens assembly according to one embodiment of the present disclosure.

[0134] FIG. 12 is a perspective view illustrating a state in which a holder is separated according to one embodiment of the present disclosure.

[0135] The embodiments of FIGS. 8 to 12 can be combined with the embodiments of FIGS. 1 to 7, or the embodiments of FIGS. 13a to 15.

[0136] The configurations of FIGS. 8 to 12 may be partially or entirely identical to the configurations of FIGS. 3 to 7.

[0137] Referring to FIGS. 8 to 12, the lens assembly (300) may include a lens frame (310), a wave guide (320), a first lens (330), a holder (440), or a second lens (350).

[0138] Referring to FIG. 8, the first lens (330) can be detachably coupled to the lens frame (310). For example, the first lens (330) can be fixed to the lens frame (310) by a holder (440).

[0139] According to one embodiment, the first lens (330) may include a groove (335) formed recessed in a side surface of the first lens (330).

[0140] According to one embodiment, the lens frame (310) may include a fourth fixed portion (315). The fourth fixed portion (315) may protrude from at least a portion of a rim of the lens frame (310). The fourth fixed portion (315) may contact at least a portion of the first lens (330) when the first lens (330) is laminated and / or disposed on the wave guide (320). The fourth fixed portion (315) may limit and / or reduce the first lens (330) from being detached from the lens frame (310).

[0141] According to one embodiment, while the first lens (330) is laminated and / or arranged on the wave guide (320), the holder (440) arranged on the lens frame (310) can be slidably moved and inserted into the groove (335) of the first lens (330). The detachment of the first lens (330) from the lens frame (310) can be limited and / or reduced.

[0142] In one embodiment, the holder (440) may be configured to slide relative to the rim of the lens frame (310). For example, the holder (440) may be movably coupled to the rim of the lens frame (310).

[0143] Referring to FIG. 9, the first lens (330) is fixed to the lens frame (310) as the holder (440) is inserted or placed into the groove (335) of the first lens (330). The holder (440) can be inserted into the groove (335) of the first lens (330) to fix the first lens (330) to the lens frame (310). When the holder (440) slides away from the first lens (330), the first lens (330) can be easily separated from the lens frame (310). When the holder (440) slides toward the first lens (330), the first lens (330) can be covered by the holder (440) and fixed to the lens frame (310).

[0144] Figure 10 is a cross-sectional view taken along line DD' of Figure 9.

[0145] Referring to FIG. 10, the lens frame (310) may include a recess (314) formed to correspond to the shape of the holder (440). The holder (440) may be slidably coupled to the recess (314). The holder (440) may include a wing portion (440a) protruding from at least a portion of the holder (440). The upper and lower ends of the wing portion (440a) may be surrounded by a portion (310e) of the lens frame (310). For example, the upper and lower ends of the wing portion (440a) may be sandwiched by the lens frame (310).

[0146] Figures 11a and 11b are cross-sectional views taken along line EE' of Figure 9.

[0147] Referring to FIGS. 11a and 11b, the wave guide (320) can be placed between the first lens (330) and the second lens (450).

[0148] Referring to FIG. 11a, a state is illustrated in which the holder (440) slides in a direction (s) toward the first lens (330) while the first lens (330) is aligned with the lens frame (310) and faces the wave guide (320).

[0149] According to one embodiment, the holder (440) may include a guide protrusion (441). The guide protrusion (441) may protrude from one side of the holder (440) (e.g., a side facing the lens frame (310). The lens frame (310) may include a guide recess (310f) through which the guide protrusion (441) may move. The guide recess (310f) may be formed recessed in a bottom surface defining a recess (314) of the lens frame (310).

[0150] According to one embodiment, the guide recess (310f) can provide a space in which the guide protrusion (441) moves. Since the guide recess (310f) includes a stepped shape, it can function as a stopper for the holder (440) that moves together with the guide protrusion (441).

[0151] Referring to FIG. 11B, the holder (440) may include a protruding portion (444). When the holder (440) is slidably moved toward the first lens (330), the protruding portion (444) may be positioned, inserted, or accommodated in the groove (335) of the first lens (330). The protruding portion (444) may cover the groove (335) to limit and / or reduce the first lens (330) from being detached from the lens frame (310).

[0152] Referring to FIG. 12, a state in which the holder (440) is separated from the lens frame (310) is illustrated. The guide recess (310f) may be formed in a portion of the lens frame (310) that defines the recess (314).

[0153] According to one embodiment, the first lens (330) may further include another groove (346). The other groove (346) may be recessed into a side surface of the first lens (330). In the other groove (346), the fourth fixed portion (315) of the lens frame (310) may be positioned, inserted, or received.

[0154] FIG. 13A is a perspective view of a lens assembly according to one embodiment of the present disclosure.

[0155] FIG. 13b is a perspective view of a lens assembly including a holder and a first lens, according to one embodiment of the present disclosure.

[0156] The embodiments of FIGS. 13a and 13b can be combined with the embodiments of FIGS. 1 to 12, or the embodiments of FIGS. 14 to 15.

[0157] The configurations of FIGS. 13a and 13b may be partially or entirely identical to the configurations of FIGS. 3 to 12.

[0158] Referring to FIGS. 13A and 13B, the lens assembly (300) may include a lens frame (310), a wave guide (320), a first lens (330), a holder (540), or a second lens (e.g., the second lens (350) of FIG. 5).

[0159] According to one embodiment, the lens frame (310) may include a holder recess (316) formed on an outer surface of a rim of the lens frame (310).

[0160] According to one embodiment, the holder recess (316) can removably accommodate a holder (540).

[0161] According to one embodiment, the holder (540) can be coupled to the first lens (340) by penetrating the side of the lens frame (310).

[0162] According to one embodiment, the holder (540) may include a fastening member (541) (e.g., a bolt or pin) and a cover (542).

[0163] According to one embodiment, the first lens (330) may include a holder hole (336) formed on a side of the first lens (330).

[0164] According to one embodiment, the fastening member (541) can be received in the holder recess (316) and inserted into the holder hole (336) through the rim of the lens frame (310). Accordingly, the first lens (330) can be detachably coupled to the lens frame (310) while the first lens (330) faces the wave guide (320).

[0165] According to one embodiment, while the first lens (330) is fixed to the lens frame (310) via the fastening member (541), the cover (542) can be accommodated in the holder recess (316) so that the fastening member (541) is not visually exposed to the outside of the lens frame (310).

[0166] According to one embodiment, the holder (540) may be provided in pairs, but is not limited thereto.

[0167] FIG. 14 is a plan view showing a lens assembly according to one embodiment of the present disclosure.

[0168] FIG. 15 is a cross-sectional view of a lens assembly according to one embodiment of the present disclosure.

[0169] The embodiments of FIGS. 14 to 15 can be combined with the embodiments of FIGS. 1 to 13b.

[0170] The configurations of FIGS. 14 to 15 may be partially or entirely identical to the configurations of FIGS. 1 to 13b.

[0171] Referring to FIGS. 14 and 15, the lens assembly (300) may include a lens frame (310), a wave guide (320), a first lens (330), a holder (317), or a second lens (350).

[0172] Referring to FIG. 14, the holder (317) may protrude from the inner surface of the rim of the lens frame (310). The lens frame (310) may include a plurality of holders (317).

[0173] According to one embodiment, the holder (317) may cover an edge of the first lens (330) when the first lens (330) is placed and / or stacked on a wave guide (e.g., wave guide (320) of FIG. 15). For example, the holder (317) may contact an edge of the first lens (330). The first lens (330) may be fixed to the lens frame (310) by being covered by the holder (317). The separation of the first lens (330) from the lens frame (310) may be limited and / or reduced by the holder (317).

[0174] According to one embodiment, the lens frame (310) may include an inserted recess (318) formed in the inner surface of the rim of the lens frame (310).

[0175] Figure 15 is a cross-sectional view taken along the line FF' of Figure 14.

[0176] Referring to FIG. 15, the wave guide (320) can be placed between the first lens (330) and the second lens (350).

[0177] According to one embodiment, while the first lens (330) is fixed to the lens frame (310), the user can separate the first lens (330) from the lens frame (310) using a separate member (10) (e.g., a pin). For example, when the user inserts the member (10) into the insertion recess (318) and then tilts the member (10) as shown in the drawing P, the first lens (330) can be easily separated from the lens frame (310).

[0178] AR glasses that provide augmented reality may require lenses for adjusting the focal length of virtual images relative to virtual objects, and lenses for adjusting the focal length of real images relative to real objects. Furthermore, AR glasses may additionally require vision correction lenses that correspond to the vision of the user wearing the AR glasses.

[0179] According to one embodiment of the present disclosure, a wearable electronic device may be disclosed that is provided with an overall thin thickness, as a lens that adjusts a focal length of a virtual image for a virtual object provides a vision correction function.

[0180] However, the problem to be solved in this disclosure is not limited to the problem mentioned above, and may be determined in various ways without departing from the spirit and scope of this disclosure.

[0181] According to one embodiment of the present disclosure, a wearable electronic device may be provided that provides a structure that allows easy replacement of lenses according to a user's eyesight.

[0182] The effects that can be obtained from the present disclosure are not limited to the effects mentioned above, and other effects that are not mentioned can be clearly understood by a person having ordinary skill in the art to which the present disclosure belongs from the description below.

[0183] According to one embodiment of the present disclosure, a wearable electronic device (101) may include a lens frame (310).

[0184] According to one embodiment, the wearable electronic device (101) may include a wave guide (320) disposed on the lens frame (310) and including a front side (321) configured to face the user's eyes when the wearable electronic device (101) is worn by the user, and a rear side (322) opposite the front side (321).

[0185] According to one embodiment, the wearable electronic device (101) may include a first lens (330) disposed on the front surface (321) of the wave guide (320), detachably coupled to the lens frame (310), and configured to adjust a focal length of light for a virtual image output from the wave guide (320) and a focal length of light for an external real object.

[0186] According to one embodiment, the wearable electronic device (101) may include a second lens (350) disposed on the rear surface (322) of the wave guide (320), coupled with the wave guide (320) and formed integrally with the wave guide (320), and configured to adjust the focal length of light with respect to an external real object.

[0187] According to one embodiment, the wave guide (320) may further include a diffractive element (325) formed on the rear surface (322).

[0188] According to one embodiment, the first lens (330) may include a first surface (331) facing the front surface (321) and a second surface (332) opposite to the first surface (331).

[0189] According to one embodiment, the first surface (331) may include a plane.

[0190] According to one embodiment, the front surface (321) may include a plane.

[0191] According to one embodiment, the first surface (331) can be in contact with the front surface (321).

[0192] According to one embodiment, the first lens (330) may have negative lens power.

[0193] According to one embodiment, the second lens (350) may have positive lens power.

[0194] According to one embodiment, the wearable electronic device (101) may further include a holder (340) configured to secure the first lens (330) to the lens frame (310).

[0195] According to one embodiment, the holder (340) may surround the edge of the first lens (330).

[0196] According to one embodiment, the holder (340) may include an insertion portion (342) protruding from at least a portion of the holder (340).

[0197] According to one embodiment, the lens frame (310) may include a receiving portion (312) that receives the insert portion (342).

[0198] According to one embodiment, the holder (340) may further include a slit (343) formed on the outer surface of the insertion portion (342).

[0199] According to one embodiment, the holder (340) may further include a magnet disposed in the insertion portion (342).

[0200] According to one embodiment, the first lens (330) may further include a protrusion (334) formed on a side surface (333) of the first lens (330).

[0201] According to one embodiment, the holder (340) may include a recess (344) for receiving the protrusion (334).

[0202] According to one embodiment, the edge of the wave guide (320) and the edge of the second lens (350) may be surrounded by the lens frame (310).

[0203] According to one embodiment, the lens frame (310) may further include a first fixed portion (313a) protruding from the lens frame (310) and a second fixed portion (313b) protruding from the lens frame (310) and spaced apart from the first fixed portion (313a).

[0204] According to one embodiment, the edge of the wave guide (320) and the edge of the second lens (350) may be positioned between the first fixed portion (313a) and the second fixed portion (313b).

[0205] According to one embodiment, the wave guide (320) may be placed between the first lens (330) and the second lens (350).

[0206] According to one embodiment of the present disclosure, a wearable electronic device (101) may include a lens frame (310).

[0207] According to one embodiment, the wearable electronic device (101) may include a wave guide (320) disposed on the lens frame (310) and having a front side (321) configured to face the user's eyes when the wearable electronic device (101) is worn by the user and a back side (322) opposite the front side (321).

[0208] According to one embodiment, the wearable electronic device (101) may include a first lens (330) disposed on the front surface (321) of the wave guide (320), detachably coupled to the lens frame (310), and configured to adjust a focal length of light for a virtual image output from the wave guide (320) and a focal length of light for an external real object.

[0209] According to one embodiment, the wearable electronic device (101) may include a holder (317; 340; 440, 540) configured to secure the first lens (330) to the lens frame (310).

[0210] According to one embodiment, the wearable electronic device (101) may include a second lens (350) disposed on the rear surface (322) of the wave guide (320) and configured to adjust the focal length of light with respect to an external real object.

[0211] According to one embodiment, the holder (317) may protrude from at least a portion of the lens frame (310).

[0212] According to one embodiment, the holder (340) may surround the edge of the first lens (330).

[0213] According to one embodiment, the holder (440) can be slidably coupled to the lens frame (310).

[0214] According to one embodiment, the holder (540) may be coupled to the first lens (330) by penetrating the side of the lens frame (310).

[0215] Although the detailed description of this document has described specific embodiments, it will be apparent to those skilled in the art that various modifications are possible without departing from the scope of this document.

Claims

1. In a wearable electronic device (101), Lens frame (310); A wave guide (320) disposed on the lens frame (310) and including a front side (321) configured to face the user's eyes when the wearable electronic device (101) is worn by the user, and a rear side (322) opposite to the front side (321); A first lens (330) disposed on the front surface (321) of the wave guide (320), detachably coupled to the lens frame (310), and configured to adjust the focal length of light for a virtual image output from the wave guide (320) and the focal length of light for an external real object; and A wearable electronic device comprising a second lens (350) disposed on the rear surface (322) of the wave guide (320), coupled with the wave guide (320) and formed integrally with the wave guide (320), and configured to adjust the focal length of light with respect to an external real object.

2. In paragraph 1, The above wave guide (320) is A wearable electronic device further comprising a diffractive element (325) formed on the rear surface (322).

3. In either of paragraphs 1 and 2, The above first lens (330) is It includes a first side (331) facing the front side (321) and a second side (332) opposite to the first side (331), The above first side (331) is, A wearable electronic device comprising a plane.

4. In any one of paragraphs 1 to 3, The above front (321) is, A wearable electronic device comprising a plane.

5. In any one of paragraphs 1 to 4, The above first side (331) is, A wearable electronic device in contact with the front surface (321).

6. In any one of paragraphs 1 to 5, The above first lens (330) has negative lens power, The above second lens (350) is a wearable electronic device having positive lens power.

7. In any one of paragraphs 1 to 6, A wearable electronic device further comprising a holder (340) configured to fix the first lens (330) to the lens frame (310).

8. In any one of paragraphs 1 to 7, The above holder (340) is, A wearable electronic device surrounding the edge of the first lens (330).

9. In any one of paragraphs 1 to 8, The above holder (340) is, Including an insertion portion (342) protruding from at least a portion of the holder (340), The above lens frame (310) is A wearable electronic device comprising a receiving portion (312) for receiving the above insertion portion (342).

10. In any one of paragraphs 1 to 8, The above holder (340) is, A wearable electronic device further comprising a slit (343) formed on the outer surface of the insertion portion (342).

11. In any one of paragraphs 1 to 10, The above holder (340) is, A wearable electronic device further comprising a magnet disposed in the above insertion portion (342).

12. In any one of paragraphs 1 to 11, The above first lens (330) is It further includes a protrusion (334) formed on the side (333) of the first lens (330), The above holder (340) is, A wearable electronic device comprising a recess (344) for accommodating the protrusion (334).

13. In any one of paragraphs 1 to 12, The edge of the above wave guide (320) and the edge of the second lens (350) are A wearable electronic device surrounded by the above lens frame (310).

14. In any one of paragraphs 1 to 13, The above lens frame (310) is It further includes a first fixed portion (313a) protruding from the lens frame (310) and a second fixed portion (313b) protruding from the lens frame (310) and spaced apart from the first fixed portion (313a). The edge of the above wave guide (320) and the edge of the second lens (350) are A wearable electronic device disposed between the first fixed portion (313a) and the second fixed portion (313b).

15. In any one of paragraphs 1 to 14, The above wave guide (320) is A wearable electronic device disposed between the first lens (330) and the second lens (350).

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