Camera module and electronic device including same
The camera module with an optical member that reflects or refracts light addresses the challenge of miniaturizing electronic devices with good optical performance by improving optical path design and reducing stray light, achieving effective image quality in compact devices.
Patent Information
- Application Number
- PCT/KR2024/006862
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-09-07
- Filing Date
- 2024-05-21
- Publication Date
- 2025-01-02
AI Technical Summary
In miniaturized electronic devices, it is challenging to install imaging devices with good optical performance due to reduced design freedom for lenses and image sensors, leading to issues like stray light and flare caused by increased reflections or refractions in the optical path.
A camera module with an optical member that reflects or refracts light guided to an image sensor at least once, allowing for improved optical path design and suppression of stray light or flare, while enabling telephoto performance in a compact form factor.
The solution enables miniaturization of camera modules with enhanced optical performance by improving the design freedom of the optical path and reducing stray light or flare, maintaining image quality in electronic devices.
Smart Images

Figure KR2024006862_02012025_PF_FP_ABST
Abstract
Description
Camera module and electronic device including the same
[0001] Embodiments of the present disclosure relate to electronic devices, for example, to camera modules and / or electronic devices including the same.
[0002] An electronic device can refer to any device that performs a specified function according to a built-in program, such as a home appliance, an electronic notebook, a portable multimedia player, a mobile communication terminal, a tablet PC, an audio / video device, a desktop / laptop computer, and / or an in-vehicle navigation system. For example, these electronic devices can output stored information as audio or video. As the integration of electronic devices increases and ultra-high-speed, high-capacity wireless communication becomes more widespread, a single electronic device, such as a mobile communication terminal, can recently be equipped with various functions. For example, in addition to communication functions, entertainment functions such as games, multimedia functions such as music / video playback, communication and security functions for mobile banking, and / or functions such as schedule management or electronic wallets are being integrated into a single electronic device.
[0003] As digital camera manufacturing technology developed, electronic devices equipped with compact, lightweight camera modules became commercially available. By incorporating camera modules, such as imaging devices, into electronic devices we typically carry with us (e.g., mobile terminals), users can conveniently utilize a variety of functions, including not only taking photos and videos, but also video calling and / or 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 in connection with the present disclosure.
[0005] According to one embodiment of the present disclosure, a camera module may include a first reflective member including a receiving groove formed on one surface, a first optical surface provided within an area provided by the receiving groove, a protrusion protruding from the one surface and at least partially received in the receiving groove, a second reflective member including a second optical surface provided on one surface of the protrusion and arranged to face the first optical surface, and an image sensor configured to detect at least a portion of light guided via the first optical surface and the second optical surface. In one embodiment, the receiving groove may be configured to allow the protrusion to move in a first extension direction in a plane parallel to the first optical surface or the second optical surface, and may be configured to restrict the protrusion from moving in a second extension direction intersecting the first extension direction.
[0006] According to one embodiment of the present disclosure, an electronic device may include at least one first camera module, a second camera module disposed adjacent to the at least one first camera module and having a smaller field of view (FOV) than the at least one first camera module, the second camera module disclosed through the embodiment(s) described below, and a processor configured to acquire a subject image using at least one of the at least one first camera module or the second camera module.
[0007] The above-described aspects or other aspects, configurations and / or advantages of one embodiment of the present disclosure may be further clarified by the following detailed description taken in conjunction with the accompanying drawings.
[0008] FIG. 1 is a block diagram illustrating an electronic device within a network environment according to one embodiment of the present disclosure.
[0009] FIG. 2 is a perspective view showing the front of an electronic device according to one embodiment of the present disclosure.
[0010] FIG. 3 is a perspective view showing the rear side of the electronic device illustrated in FIG. 2 according to one embodiment of the present disclosure.
[0011] FIG. 4 is an exploded perspective view showing the front side of the electronic device illustrated in FIG. 2, according to one embodiment of the present disclosure.
[0012] FIG. 5 is an exploded perspective view showing the rear side of the electronic device illustrated in FIG. 2, according to one embodiment of the present disclosure.
[0013] FIG. 6 is a cross-sectional view showing a portion of an electronic device according to one embodiment of the present disclosure, taken along line A-A' of FIG. 3.
[0014] FIG. 7 is a schematic diagram illustrating an optical path of a camera module in an electronic device according to one embodiment of the present disclosure.
[0015] FIG. 8 is a drawing showing an optical member of a camera module according to one embodiment of the present disclosure.
[0016] FIG. 9 is a perspective view showing a first reflective member among the optical members of FIG. 8, according to one embodiment of the present disclosure.
[0017] FIG. 10 is a perspective view showing a second reflective member among the optical members of FIG. 8, according to one embodiment of the present disclosure.
[0018] FIG. 11 is a perspective view showing a second reflective member among optical members of a camera module according to one embodiment of the present disclosure.
[0019] FIG. 12 is a drawing showing an optical member of a camera module according to one embodiment of the present disclosure.
[0020] FIG. 13 is a drawing showing an optical member of a camera module according to one embodiment of the present disclosure.
[0021] FIG. 14 is a first perspective view showing a camera module according to one embodiment of the present disclosure.
[0022] FIG. 15 is a second perspective view showing a camera module according to one embodiment of the present disclosure.
[0023] FIG. 16 is a drawing illustrating the arrangement of camera module(s) in an electronic device according to one embodiment of the present disclosure.
[0024] FIG. 17 is a drawing showing an electronic device including a camera module according to one embodiment of the present disclosure.
[0025] Throughout the attached drawings, similar reference numbers may be assigned to similar parts, components and / or structures.
[0026] As electronic devices become smaller and lighter, they can become more convenient to carry and use. In an environment where displays are becoming larger to enable larger screens on portable electronic devices, reducing thickness can lead to smaller and lighter electronic devices. Miniaturized electronic devices can present challenges in integrating imaging devices with superior optical performance. For example, while a larger number or size of lenses can facilitate securing optical performance in an imaging device, miniaturized electronic devices can offer less design freedom in the arrangement of lenses or image sensors. Therefore, multiple camera modules, such as a telephoto camera, a wide-angle camera, an ultra-wide-angle camera, and / or a macro camera, that provide superior optical performance over a given angle of view, can be integrated into a single electronic device. A telephoto camera, with its narrower angle of view and longer focal length than other camera modules, can be easily integrated into a miniaturized electronic device by including an optical element (e.g., a prism or mirror) that transforms the optical path. For example, arranging optical elements such as mirrors or prisms can facilitate the arrangement of lenses or image sensors. However, when additional optical elements are placed, the number of reflections or refractions along the path to the image sensor may increase, which may cause an increase in light reaching the image sensor through non-designed paths. Light entering through non-designed paths, or resulting in a deterioration in image quality, may be referred to as "stray light" or "flare."
[0027] One embodiment of the present disclosure is intended to at least resolve the above-described problems and / or disadvantages and provide at least the advantages described below, and may provide a camera module including an optical member that reflects or refracts light guided to an image sensor at least once, and / or an electronic device including the same.
[0028] One embodiment of the present disclosure can provide a camera module and / or an electronic device including the same that is easy to miniaturize while providing telephoto performance by improving the degree of freedom in designing an optical path.
[0029] One embodiment of the present disclosure can provide a camera module and / or an electronic device including the same capable of suppressing stray light or flare caused by reflection or refraction of light guided to an image sensor while including an optical member.
[0030] The technical problems to be achieved in this document are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present disclosure belongs from the description below.
[0031] The following description of the accompanying drawings may provide an understanding of various exemplary implementations of the present disclosure, including the claims and their equivalents. While the exemplary embodiments disclosed in the following description include numerous specific details to aid understanding, they are to be considered as one example of various exemplary embodiments. Accordingly, those skilled in the art will appreciate that various modifications and variations of the various implementations described herein may be made without departing from the scope and spirit of the disclosure. Furthermore, descriptions of well-known functions and configurations may be omitted for clarity and conciseness.
[0032] The terms and words used in the following description and claims are not limited to their reference meanings and can be used to clearly and consistently describe one embodiment of the present disclosure. Therefore, it will be apparent to those skilled in the art that the following description of various implementations of the disclosure is provided for illustrative purposes, not for the purpose of limiting the scope of the disclosure and its equivalents.
[0033] Unless the context clearly dictates otherwise, the singular forms of "a," "an," and "the" should be understood to include plural meanings. Thus, for example, "a component surface" could be understood to include one or more of the surfaces of the component.
[0034] FIG. 1 is a block diagram of an electronic device (101) within a network environment (100) according to one embodiment of the present disclosure. Referring to FIG. 1 , in the network environment (100), the electronic device (101) may communicate with the electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with at least one of the electronic device (104) or the 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 one embodiment, the electronic device (101) may have at least one of these components (e.g., the connection terminal (178)) omitted, or one or more other components added. In one embodiment, 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)).
[0035] 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.
[0036] 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.
[0037] 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).
[0038] 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).
[0039] 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).
[0040] 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.
[0041] 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.
[0042] 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).
[0043] 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.
[0044] The interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) to 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.
[0045] 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).
[0046] 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.
[0047] 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.
[0048] 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).
[0049] 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.
[0050] 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 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).
[0051] 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.
[0052] 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 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 at least one selected antenna. In one embodiment, 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).
[0053] In one embodiment, 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) of the printed circuit board and capable of transmitting or receiving signals in the designated high-frequency band.
[0054] 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)).
[0055] 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 one 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.
[0056] Electronic devices according to embodiments of the present disclosure 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 embodiments of the present disclosure are not limited to the aforementioned devices.
[0057] The embodiments of the present disclosure 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 encompass 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 dictates otherwise. In this document, phrases such as "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 each include any one of the items listed together in the corresponding phrase, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used simply to distinguish the corresponding component from other corresponding components, and do not limit the corresponding components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as being “coupled” or “connected” to another component (e.g., a second component), with or without the terms “functionally” or “communicatively,” it is understood that the component can be connected to the other component directly (e.g., wired), wirelessly, or via a third component.
[0058] The term "module" used in the embodiments of the present disclosure 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).
[0059] Embodiments of the present disclosure may be implemented as software (e.g., a program) including one or more instructions stored in a storage medium (e.g., built-in memory or external memory) readable by a machine (e.g., an electronic device). For example, a processor (e.g., a processor) of the machine (e.g., an electronic device) 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 instruction called. 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" only means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and this term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily in the storage medium.
[0060] According to one embodiment, a method according to the embodiment(s) of the present disclosure may be provided as a computer program product. The computer program product may be traded between sellers and buyers as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., compact disc read only memory (CD-ROM)) or may be provided through an application store (e.g., Play Store). TM ) or directly between two user devices (e.g., smartphones), online distribution (e.g., downloading or uploading). In the case of online distribution, at least a portion of the computer program product may be at least temporarily stored or temporarily created in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.
[0061] According to one embodiment, 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 one embodiment, 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 one embodiment, 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.
[0062] In the detailed description below, the longitudinal direction, the width direction, and / or the thickness direction of the electronic device may be mentioned, and the longitudinal direction may be defined as the 'Y-axis direction', the width direction as the 'X-axis direction', and / or the thickness direction as the 'Z-axis direction'. In one embodiment, with respect to the direction that a component is oriented, 'negative / positive (- / +)' may be mentioned together with the rectangular coordinate system illustrated in the drawings. For example, the front of the electronic device and / or the housing may be defined as the 'side facing the +Z direction', and the back side may be defined as the 'side facing the -Z direction'. In one embodiment, the side of the electronic device and / or the housing may include a region facing the +X direction, a region facing the +Y direction, a region facing the -X direction, and / or a region facing the -Y direction. In one embodiment, the 'X-axis direction' may mean both the '-X direction' and the '+X direction'. It should be noted that this is based on the rectangular coordinate system illustrated in the drawings for the sake of brevity of description, and that the description of these directions or components does not limit the embodiment(s) of the present disclosure. For example, depending on the design specifications of the electronic device or the user's usage habits, the orthogonal coordinate system may be defined differently from that in the present disclosure.
[0063] FIG. 2 is a perspective view showing the front side of an electronic device (200) (e.g., the electronic device (101) of FIG. 1) according to one embodiment of the present disclosure. FIG. 3 is a perspective view showing the rear side of the electronic device (200) illustrated in FIG. 2 according to one embodiment of the present disclosure.
[0064] Referring to FIGS. 2 and 3, an electronic device (200) according to one embodiment may include a housing (210) that includes a first side (or front side) (210A), a second side (or back side) (210B), and a side surface (210C) that surrounds a space between the first side (210A) and the second side (210B). In one embodiment (not shown), the housing (210) may refer to a structure that forms a portion of the first side (210A) of FIG. 2, the second side (210B), and the side surface (210C) of FIG. 3. According to one embodiment, the first side (210A) may be formed by a front plate (202) that is at least partially substantially transparent (e.g., a glass plate or a polymer plate including various coating layers). The second side (210B) may be formed by a substantially opaque back plate (211). The rear plate (211) may be formed of, for example, coated or colored glass, ceramic, polymer, metal (e.g., aluminum, stainless steel (STS), or magnesium), or a combination of at least two of the foregoing materials. The side surface (210C) may be formed by a side structure (or “side bezel structure”) (218) that is coupled to the front plate (202) and the rear plate (211) and comprises a metal and / or polymer. In one embodiment, the rear plate (211) and the side structure (218) may be formed integrally and comprise the same material (e.g., a metal material such as aluminum).
[0065] Although not shown, the front plate (202) may include a seamlessly extending region(s) that curves toward the rear plate (211) at least along a portion of an edge. In one embodiment, the front plate (202) (or the rear plate (211)) may include only one of the curved extending regions toward the rear plate (211) (or the front plate (202)) at one edge of the first surface (210A). In some embodiments, the front plate (202) or the rear plate (211) may be substantially flat, in which case it may not include a curved extending region. When it includes a curved extending region, the thickness of the electronic device (200) in the portion that includes the curved extending region may be smaller than that of other portions.
[0066] According to one embodiment, the electronic device (200) may include at least one of a display (201), an audio module (203, 207, 214), a sensor module (204, 219), a camera module (205, 212, 213), a key input device (217), a light emitting element (206), and a connector hole (208, 209). In one embodiment, the electronic device (200) may omit at least one of the components (e.g., the key input device (217) or the light emitting element (206)) or may additionally include other components.
[0067] The display (201) may be exposed, for example, through a significant portion of the front plate (202). In one embodiment, at least a portion of the display (201) may be exposed through the front plate (202) forming the first surface (210A) or through a portion of a side surface (210C). In one embodiment, the corners of the display (201) may be formed to be substantially the same as the adjacent outer shape of the front plate (202). In one embodiment (not shown), in order to expand the area to which the display (201) is exposed, the gap between the outer shape of the display (201) and the outer shape of the front plate (202) may be formed to be substantially the same.
[0068] In one embodiment (not shown), a recess or opening may be formed in a portion of a screen display area of the display (201), and at least one of an audio module (214), a sensor module (204), a camera module (205), and a light-emitting element (206) may be included that are aligned with the recess or opening. In one embodiment (not shown), at least one of an audio module (214), a sensor module (204), a camera module (205), a fingerprint sensor (not shown), and a light-emitting element (206) may be included on a back surface of the screen display area of the display (201). In one embodiment (not shown), the display (201) may be coupled to or disposed adjacent to a touch detection circuit, a pressure sensor capable of measuring the intensity (pressure) of a touch, and / or a digitizer that detects a magnetic field-type stylus pen. In one embodiment, at least a portion of the sensor modules (204, 219) and / or at least a portion of the key input device (217) may be disposed in the first areas (210D) and / or the second areas (210E).
[0069] The audio module (203, 207, 214) may include a microphone hole (203) and a speaker hole (207, 214). The microphone hole (203) may have a microphone disposed inside to acquire external sound, and in one embodiment, multiple microphones may be disposed to detect the direction of the sound. The speaker hole (207, 214) may include an external speaker hole (207) and a receiver hole (214) for calls. In one embodiment, the speaker hole (207, 214) and the microphone hole (203) may be implemented as a single hole, or a speaker may be included without the speaker hole (207, 214) (e.g., a piezo speaker).
[0070] The sensor module (204, 219) can generate an electrical signal or data value corresponding to an internal operating state of the electronic device (200) or an external environmental state. The sensor module (204, 219) may include, for example, a first sensor module (204) (e.g., a proximity sensor) and / or a second sensor module (not shown) (e.g., a fingerprint sensor) disposed on a first surface (210A) of the housing (210), and / or a third sensor module (219) and / or a fourth sensor module (e.g., a fingerprint sensor) disposed on a second surface (210B) of the housing (210). The fingerprint sensor may be disposed on not only the first surface (210A) (e.g., the display (201)) of the housing (210), but also the second surface (210B) or the side surface (210C). The electronic device (200) may further include, for example, at least one of a gesture sensor, a gyro sensor, a pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor (204).
[0071] The camera modules (205, 212, 213) may include a first camera device (205) disposed on a first side (210A) of the electronic device (200), a second camera device (212) disposed on a second side (210B), and / or a flash (213). The camera devices (205, 212) may include one or more lenses, an image sensor, and / or an image signal processor. The flash (213) may include, for example, a light-emitting diode or a xenon lamp. In one embodiment, two or more lenses (infrared camera, wide-angle and telephoto lenses) and image sensors may be disposed on one side of the electronic device (200). In one embodiment, the flash (213) may emit infrared light, and infrared light emitted by the flash (213) and reflected by a subject may be received via the third sensor module (219). The electronic device (200) or the processor of the electronic device (200) can detect depth information of the subject based on the point in time when infrared rays are received from the third sensor module (219).
[0072] The key input device (217) may be disposed on a side surface (210C) of the housing (210). In one embodiment, the electronic device (200) may not include some or all of the above-mentioned key input devices (217), and the key input devices (217) that are not included may be implemented in other forms, such as soft keys, on the display (201). In one embodiment, the key input device may include a sensor module disposed on a second surface (210B) of the housing (210).
[0073] The light-emitting element (206) may be disposed, for example, on the first surface (210A) of the housing (210). The light-emitting element (206) may provide, for example, status information of the electronic device (200) in the form of light. In one embodiment, the light-emitting element (206) may provide a light source that is linked to the operation of, for example, the camera module (205). The light-emitting element (206) may include, for example, an LED, an IR LED, and a xenon lamp.
[0074] The connector holes (208, 209) may include a first connector hole (208) that can accommodate a connector (e.g., a USB connector) for transmitting and receiving power and / or data with an external electronic device, and / or a second connector hole (e.g., an earphone jack) (209) that can accommodate a connector for transmitting and receiving audio signals with an external electronic device.
[0075] FIG. 4 is an exploded perspective view showing the front side of the electronic device (200) illustrated in FIG. 2 according to one embodiment of the present disclosure. FIG. 5 is an exploded perspective view showing the back side of the electronic device (200) illustrated in FIG. 2 according to one embodiment of the present disclosure.
[0076] Referring to FIGS. 4 and 5 , the electronic device (300) (e.g., the electronic device (200) of FIG. 2 or 3 ) may include a side structure (310), a first support member (311) (e.g., a bracket), a front plate (320) (e.g., the front plate (202) of FIG. 2 ), a display (330) (e.g., the display (201) of FIG. 2 ), a printed circuit board (or board assembly) (340), a battery (350), a second support member (360) (e.g., a rear case), an antenna, a camera assembly (307), and a rear plate (380) (e.g., the rear plate (211) of FIG. 3 ). In one embodiment, the electronic device (300) may omit at least one of the components (e.g., the first support member (311) or the second support member (360)) or may additionally include other components. At least one of the components of the electronic device (300) may be identical or similar to at least one of the components of the electronic device (200) of FIG. 2 or FIG. 3, and any overlapping description will be omitted below.
[0077] The first support member (311) may be disposed inside the electronic device (300) and connected to the side structure (310), or may be formed integrally with the side structure (310). The first support member (311) may be formed of, for example, a metallic material and / or a non-metallic (e.g., polymer) material. When formed at least partially of a metallic material, the side structure (310) or a portion of the first support member (311) may function as an antenna. The first support member (311) may have a display (330) coupled to one surface and a printed circuit board (340) coupled to the other surface. A processor, a memory, and / or an interface may be mounted on the printed circuit board (340). The processor may include, for example, one or more of a central processing unit, an application processor, a graphics processing unit, an image signal processor, a sensor hub processor, or a communication processor.
[0078] In one embodiment, the first support member (311) and the side structure (310) may be combined to be referred to as a front case or housing (301). In one embodiment, the housing (301) may be generally understood as a structure for accommodating, protecting, or arranging a printed circuit board (340) or a battery (350). In one embodiment, the housing (301) may be understood as including structures that can be visually or tactilely perceived by a user in the appearance of the electronic device (300), for example, a side structure (310), a front plate (320), and / or a rear plate (380). In one embodiment, the 'front or rear side of the housing (301)' may mean the first side (210A) of FIG. 2 or the second side (210B) of FIG. 3. In one embodiment, the first support member (311) is positioned between the front plate (320) (e.g., the first side (210A) of FIG. 2) and the back plate (380) (e.g., the second side (210B) of FIG. 3) and may function as a structure for positioning electrical / electronic components such as a printed circuit board (340) or a camera assembly (307).
[0079] The memory may include, for example, volatile memory or non-volatile memory.
[0080] The interface may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, and / or an audio interface. The interface may electrically or physically connect the electronic device (300) to an external electronic device, for example, and may include a USB connector, an SD card / MMC connector, or an audio connector.
[0081] The second support member (360) may include, for example, an upper support member (360a) and a lower support member (360b). In one embodiment, the upper support member (360a) may be arranged to surround a printed circuit board (340) together with a portion of the first support member (311). A circuit device implemented in the form of an integrated circuit chip (e.g., a processor, a communication module, or a memory) or various electrical / electronic components may be arranged on the printed circuit board (340), and according to an embodiment, the printed circuit board (340) may be provided with an electromagnetic shielding environment from the upper support member (360a). In one embodiment, the lower support member (360b) may be utilized as a structure on which electrical / electronic components such as a speaker module or an interface (e.g., a USB connector, an SD card / MMC connector, or an audio connector) may be arranged. In one embodiment, electrical / electronic components such as a speaker module, an interface (e.g., a USB connector, an SD card / MMC connector, or an audio connector) may be arranged on an additional printed circuit board (not shown). In this case, the lower support member (360b) may be arranged to surround the additional printed circuit board together with another portion of the first support member (311). The speaker module or interface arranged on the additional printed circuit board (not shown) or the lower support member (360b) may be arranged corresponding to the audio module (207) or connector holes (208, 209) of FIG. 2.
[0082] The battery (350) is a device for supplying power to at least one component of the electronic device (300), and may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell. At least a portion of the battery (350) may be disposed substantially on the same plane as, for example, the printed circuit board (340). The battery (350) may be disposed integrally within the electronic device (300), or may be disposed detachably from the electronic device (300).
[0083] Although not shown, the antenna may include a conductive pattern implemented on the surface of the second support member (360), for example, through a laser direct structuring process. In one embodiment, the antenna may include a printed circuit pattern formed on the surface of a thin film, and the thin film-type antenna may be disposed between the back plate (380) and the battery (350). The antenna may include, for example, a near field communication (NFC) antenna, a wireless charging antenna, and / or a magnetic secure transmission (MST) antenna. The antenna may, for example, perform short-range communication with an external device or wirelessly transmit and receive power required for charging. In one embodiment, another antenna structure may be formed by the side structure (310) and / or a portion or combination of the first support member (311).
[0084] The camera assembly (307) may include at least one camera module, for example, at least one of the camera modules (371, 372, 373, 374) of FIG. 5. Within the electronic device (300), the camera assembly (307) may receive at least a portion of light incident through an optical hole or camera window (312, 313, 319). In one embodiment, the camera assembly (307) may be disposed on the first support member (311) at a location adjacent to the printed circuit board (340). In one embodiment, the camera module(s) of the camera assembly (307) may be generally aligned with one of the camera windows (312, 313, 319) and may be at least partially wrapped around the second support member (360) (e.g., the upper support member (360a)). When arranging the camera assembly (307) or camera module (371, 372, 373, 374), the electronic device (300) or the first support member (311) can mount or fix the camera assembly (307) by including a structure such as at least one support wall or elastic member.
[0085] In the detailed description below, reference may be made to the electronic device (200, 300) of the preceding embodiment, and it is noted that the same reference numbers in the drawings may be given or omitted for configurations that can be easily understood through the preceding embodiment, and the detailed description thereof may also be omitted.
[0086] FIG. 6 is a cross-sectional view illustrating a portion of an electronic device (400) (e.g., the electronic devices (101, 200, 300) of FIGS. 1 to 5) according to one embodiment of the present disclosure, taken along line A-A' of FIG. 3. FIG. 7 is a schematic diagram illustrating an optical path of a camera module (500) in an electronic device (400) according to one embodiment of the present disclosure.
[0087] Referring to FIGS. 3 and 6, an electronic device (400) according to an embodiment of the present disclosure (e.g., the electronic devices (101, 200, 300) of FIGS. 1 to 5) may include a cover plate (385) disposed on one surface (e.g., the second surface (210B) of FIG. 3). In one embodiment, the cover plate (385) may be a part of a rear plate (380). In one embodiment, the cover plate (385) may be coupled to the rear plate (380) via a decorative member (389), and when viewed from the outside, the decorative member (389) may be exposed in a form that surrounds the periphery of the cover plate (385). According to one embodiment, the cover plate (385) may provide a plurality of transparent regions, and the electronic device (400) may receive external light or radiate light to the outside through at least one of the transparent regions. For example, the electronic device (400) may include at least one camera module (500) (e.g., camera modules 180, 205, 212, 213 of FIGS. 1 to 3) arranged to correspond to at least some of the transparent areas, and at least one light source (e.g., a flash or an infrared light source) arranged to correspond to another part of the transparent areas. In one embodiment, the camera module (500) and / or the light source may receive external light or radiate light to the outside of the electronic device (400). In one embodiment, the electronic device (400) and / or the camera module (500) may further include a camera support member (381). The camera support member (381) may arrange or secure at least one of the camera module (500) and / or another camera module adjacent thereto (e.g., a wide-angle camera, an ultra-wide-angle camera, and / or a macro camera) to the inside of the rear plate (380) and / or the cover plate (385). In one embodiment, the camera support member (381) may be substantially a part of the first support member (311) and / or the second support member (360) of FIG. 4.
[0088] According to one embodiment, the electronic device (400) may include at least one of a wide-angle camera, an ultra-wide-angle camera, a close-up camera, a telephoto camera, or an infrared photodiode as a camera module (500) and / or a light-receiving element, and may include a flash (e.g., the flash (213) of FIG. 3) or an infrared laser diode as a light source and / or a light-emitting element. In one embodiment, the electronic device (400) may detect a distance and / or depth to a subject by emitting an infrared laser toward the subject and receiving an infrared laser reflected by the subject using the infrared laser diode and the infrared photodiode. In one embodiment, the electronic device (400) may capture a subject by using one or a combination of two or more of the cameras, and may provide illumination toward the subject by using a flash as needed.
[0089] According to one embodiment, among the cameras, a wide-angle camera, an ultra-wide-angle camera, and / or a macro camera may have a shorter length in the optical axis direction of the lens(es) compared to a telephoto camera (e.g., a camera module (500)). For example, a telephoto camera (e.g., a camera module (500)) having a relatively small angle of view and a relatively large focal length may have a larger lens length than other cameras (e.g., a wide-angle camera, an ultra-wide-angle camera, and / or a macro camera). The term “lens length” may be the distance from the object-side surface of the first lens on the object side to the imaging surface of the image sensor (411). In the case where other optical members (e.g., a mirror and / or prism) are arranged between the lens(es) and the image sensor, as in the camera module (500) of FIG. 6, the “lens length” may be the distance from the object-side surface of the first lens on the object side to the sensor-side surface of the first lens on the image sensor side. In one embodiment, the wide-angle camera, the ultra-wide-angle camera, and / or the macro camera may have a substantially small effect on the thickness of the electronic device (400) even if the lens(es) are arranged along the thickness direction of the electronic device (400) (e.g., the thickness measured in the Z-axis direction of FIGS. 2 to 6). For example, the wide-angle camera, the ultra-wide-angle camera, and / or the macro camera may be arranged in the electronic device (400) such that the direction in which light is incident on the electronic device (400) from the outside and the optical axis direction of the lens(es) are substantially the same. In one embodiment, compared to the wide-angle camera, the ultra-wide-angle camera, and / or the macro camera, the camera module (500) (e.g., a telephoto camera) may have a smaller angle of view but may be useful for photographing subjects at a longer distance. In one embodiment of the present disclosure, the camera module (500) may include at least one optical member (R) that reflects and / or refracts the incident light (IL) in a different direction. By including at least one optical member (R), the camera module (500) can easily implement a telephoto function while suppressing an increase in the thickness of the electronic device (400).
[0090] Referring to FIGS. 6 and 7, a folded camera (e.g., a camera module (500)) may include a lens assembly (421) (e.g., lenses (421a, 421b)), at least one optical member (R) (e.g., a refractive member or a reflective member), and / or an image sensor (411). In one embodiment, the at least one optical member (R) may guide light (e.g., incident light (IL)) focused or guided by the lens assembly (421) to the image sensor (411) by reflecting or refracting the light at least once. In one embodiment, the optical member (R) may include, for example, a prism and / or a mirror. For example, the optical member (R) may be formed as a prism including at least one mirror. In one embodiment, the optical member (R) may reflect and / or refract light (IL) incident in a first direction (D1) in a second direction (D2) intersecting the first direction (D1). The first direction (D1) may refer to, for example, a direction in which external light (IL) is incident on the electronic device (400) and / or the camera module (500) when photographing a subject. In one embodiment, the first direction (D1) may refer to a photographing direction, a subject direction, an orientation direction of the camera module (500), and / or a direction parallel thereto. In one embodiment, the first direction (D1) may be parallel to the thickness direction and / or the Z-axis direction of the electronic device (400).
[0091] According to one embodiment, light (RL1) reflected or refracted inside the optical member (R) and propagating in the second direction (D2) may be reflected and / or refracted by another region inside the optical member (R) and propagated in a third direction (D3) intersecting the second direction (D2). In one embodiment, the third direction (D3) may be substantially perpendicular to the second direction (D2). For example, the third direction (D3) may mean a direction parallel to the Z-axis direction. However, the embodiment(s) of the present disclosure are not limited thereto, and the third direction (D3) may be a direction inclined with respect to the second direction (D2) and / or the XY plane depending on the arrangement and specifications of the camera module (500) and / or the optical member (R) within the electronic device (400). In one embodiment, the third direction (D3) may be substantially parallel to the first direction (D1).
[0092] According to one embodiment, the image sensor (411) may be configured to detect light (RL2) that travels along the third direction (D3) after being reflected and / or refracted at least once inside the optical member (R). For example, light (IL) incident from the outside may be detected by the image sensor (411) after being reflected or refracted at least once (e.g., twice in the illustrated embodiment) inside the optical member (R), and the electronic device (400), the processor (120) of FIG. 1, and / or the camera module (500) may acquire an image of a subject based on signals and / or information detected through the image sensor (411). In one embodiment, the image sensor (411) may be arranged substantially parallel to the XY plane. For example, when the camera module (500) has a shake correction function having a structure that shifts the image sensor (411), the image sensor (411) can move horizontally in a plane substantially perpendicular to the first direction (D1) and / or the third direction (D3).
[0093] According to one embodiment, when performing a shake correction operation, the image sensor (411) may be shifted in the longitudinal direction (e.g., Y-axis direction) and / or the width direction (e.g., X-axis direction) of the electronic device (400). For example, the image sensor (411) may be arranged on a plane that is substantially perpendicular to the first direction (D1) and / or the third direction (D3), so that in an electronic device having a small thickness (e.g., a thickness of approximately 10 mm or less), it may be easy to expand the size of the image sensor (411) and / or it may be easy to secure a space for a shake correction operation. In one embodiment, when the camera module (500) is utilized as a telephoto camera, the quality of the captured image may be further improved by being equipped with a shake correction function. In one embodiment, when the image sensor (411) is enlarged, the performance of the camera module (500) may be further improved.
[0094] According to one embodiment, the lens assembly (421) can guide and / or focus light (IL) incident from a first direction (D1) onto the optical member (R). In one embodiment, the lens assembly (421) and / or the first lens (e.g., the first lens (421a)) arranged on the object side in the camera module (500) can have a positive refractive power. For example, since the first lens (421a) is configured to focus and / or align light (IL) incident from the outside onto the optical member (R), the optical system from the first lens (421a) to the image sensor (411) can be miniaturized. In one embodiment, the lens assembly (421) can further include an additional lens (e.g., the second lens (421b)(s)) for focusing and / or aligning light incident from the outside.
[0095] According to one embodiment, at least one of the first lens (421a) and / or the second lens (421b)(s) can move forward and backward in the direction in which light is incident (e.g., the first direction (D1) of FIG. 6). For example, the electronic device (400) and / or the camera module (500) can perform focal length adjustment and / or focus adjustment by moving at least one of the first lens (421a) and / or the second lens (421b)(s) forward and backward. In one embodiment, the focal length adjustment and / or focus adjustment can be performed by moving the image sensor (411) forward and backward along the direction in which light indicated by 'RL2' is incident (e.g., the third direction (D3) of FIG. 6).
[0096] According to one embodiment, the electronic device (400) and / or the camera module (500) may further include an infrared cut filter (419). In one embodiment, the infrared cut filter (419) may suppress or substantially block light in an infrared and / or near-infrared wavelength band from being incident on the image sensor (411) and may be positioned at any position in the optical path between the first lens (421a) and the image sensor (411). In one embodiment, the infrared cut filter (419) may be positioned close to the image sensor (411) (e.g., between the image sensor (411) and the optical member (R)), thereby suppressing and / or preventing the infrared cut filter (419) from being visually exposed to the outside. In one embodiment, the optical member (R) may include an infrared cut coating layer, in which case the infrared cut filter (419) may be omitted. In this way, the image sensor (411) can substantially detect light that has passed through the infrared blocking filter (419) (or infrared blocking coating layer).
[0097] The optical member (R) according to the embodiment(s) of the present disclosure can be selectively designed according to the structure of the camera module (500). For example, in one embodiment, the optical member (R) may have a triangular prism shape. In one embodiment, the optical member (R) may have a trapezoidal prism shape. The shape of the optical member (R) is not limited to the structure illustrated in the present disclosure. For example, if the optical member (R) reflects, refracts, or transmits light, the optical member (R) may have a structure other than a triangular prism or a trapezoidal prism (e.g., a parallelogram prism shape). In one embodiment, the type of the optical member (R) can be arranged in various ways. For example, the optical member (R) may be arranged as a prism. For example, the optical member (R) may be arranged as at least one mirror. In one embodiment, the optical member (R) may include a substantially transparent material. For example, the optical member (R) may be manufactured using glass.
[0098] According to one embodiment, the optical member (R) may be implemented by combining a plurality of prisms (or mirrors). For example, a parallelogram-shaped or trapezoidal-shaped optical member (R) may be implemented by combining a triangular-shaped prism and / or a square-shaped prism. In this way, when implementing the optical member (R) according to the embodiment(s) of the present disclosure, various optical elements such as reflective elements, prisms, and / or mirrors may be selectively combined, and it should be noted that the shapes of the optical elements or the number of the optical elements are not limited to the embodiments illustrated in the drawings. In one embodiment, when the optical member (R) is implemented by combining a plurality of optical elements, it may be easy to arrange a light-shielding structure. The term "light-shielding structure" may refer to a structure that suppresses, alleviates, or blocks, for example, light that is incident on the optical member (R) through an undesigned path, or light that travels an undesigned path inside the optical member (R), from reaching the image sensor (411). The configuration of the optical member (R) can be more easily understood through the examples described below.
[0099] FIG. 8 is a drawing showing an optical member (600) of a camera module according to one embodiment of the present disclosure (e.g., the optical member (R) of FIG. 6 or FIG. 7). FIG. 9 is a perspective view showing a first reflective member (601) of the optical member (600) of FIG. 8 according to one embodiment of the present disclosure. FIG. 10 is a perspective view showing a second reflective member (602) of the optical member (600) of FIG. 8 according to one embodiment of the present disclosure.
[0100] As mentioned above, the optical member (600) according to the embodiment(s) of the present disclosure may be implemented by combining a plurality of optical elements (e.g., a first reflective member (601) and a second reflective member (602)), and in the illustrated embodiment, an optical member (600) implemented by combining two optical elements may be disclosed. In one embodiment, among the optical members (600) of FIG. 8, the first reflective member (601) (or the second reflective member (602)) may be implemented by combining one triangular prism and one square prism. In the illustrated embodiment, light (OL) incident from the outside is illustrated as being reflected four times inside the optical member (600) and then emitted from the optical member (600), but it should be noted that the embodiment of the present disclosure is not limited thereto. For example, it should be noted that the number of reflections or the light path inside the optical member (600) may differ from those illustrated in the drawing depending on the angle formed by the transmitting surface (TS1, TS2)(s) and the reflecting surface (RS1, RS2).
[0101] Referring further to FIGS. 8 to 10, the optical member (600) may include a plurality of reflective members (601, 602) arranged to face each other, and one of the plurality of reflective members (601, 602) may accommodate at least a portion of another one of the plurality of reflective members (601, 602) on the surfaces facing each other. Here, ‘accommodating a portion’ may be understood to include an arrangement structure that surrounds a portion of a first surface of one reflective member and a portion of a surface that is arranged to be inclined (or perpendicular) to the first surface while being in contact with the first surface. In one embodiment, a first reflective member (601) among the plurality of reflective members (601, 602) may include a receiving groove (611) on a surface facing a second reflective member (602) among the plurality of reflective members (601, 602), and a portion (e.g., a protrusion (621)) of the second reflective member (602) may be received in the receiving groove (611), thereby setting an alignment direction (or alignment position) of the second reflective member (602) with respect to the first reflective member (601).
[0102] According to one embodiment, the second reflective member (602) may include a protrusion (621) having a shape corresponding to the receiving groove (611) on the side facing the first reflective member (601). In one embodiment, the first reflective member (601) may include a stepped portion(s) on the side facing the second reflective member (602), and the second reflective member (602) may be understood to be received in a low region (or deep region) implemented by the stepped portion(s) of the first reflective member (601). In the illustrated embodiment, the stepped portion may be understood to be implemented by a difference in height or depth between the upper portion of the guide wall (611a) and the bottom surface of the receiving groove (611). In one embodiment, the second reflective member (602) is partially received in the receiving groove (611) of the first reflective member (601), such that the outer surface of the second reflective member (602) (e.g., the second side (SS2)(s)) and the outer surface of the first reflective member (601) (e.g., the first side (SS1)(s)) can be aligned to form a substantially continuous curved surface or a continuous plane.
[0103] In the illustrated embodiment, the first reflective member (601) is exemplified as having a receiving groove (611) formed therein, but it should be noted that the embodiment(s) of the present disclosure are not limited thereto. For example, the second reflective member (602) may be provided with a groove structure and the first reflective member (601) may be provided with a protruding structure. In the illustrated embodiment, external light (OL) is incident on the first reflective member (601), and the light that sequentially passes through the first reflective member (601) and the second reflective member (602) is emitted from the second reflective member (602). However, it should be noted that the embodiment(s) of the present disclosure are not limited thereto. For example, the external light (OL) may be incident on the second reflective member (602), and in this case, the light (DL) incident on the image sensor (e.g., the image sensor (411) of FIG. 6) may substantially be emitted from the first reflective member (601).
[0104] According to one embodiment, the first reflective member (601) may include a first optical surface (OS1) facing the second reflective member (602). When the first reflective member (601) includes a receiving groove (611) on one surface (e.g., the surface facing the second reflective member (602), the first optical surface (OS1) may be understood as at least a portion of an area provided by the receiving groove (611) (or step). For example, when the first reflective member (601) includes the receiving groove (611), the first optical surface (OS1) may be understood as being implemented by a bottom surface of the receiving groove (611).
[0105] According to one embodiment, when including the receiving groove (611), the first reflective member (601) may include a guide wall (611a) provided on at least one side of the receiving groove (611). In the illustrated embodiment, a pair of guide walls (611a) extending along a first extension direction (C1) is exemplified. For example, the pair of guide walls (611a) may be arranged to face each other along a direction (e.g., a second extension direction (C2)) intersecting the first extension direction (C1) with the receiving groove (611) therebetween. For example, when the protrusion (621) is received in the receiving groove (611), the second reflective member (602) (e.g., the protrusion (621)) with respect to the first reflective member (601) can move in the first extension direction (C1) while being guided by the guide wall (611a), but the movement in the second extension direction (C2) can be suppressed or limited by the guide wall (611a). In one embodiment, the first optical surface (OS1) can be understood as an area between the guide walls (611a) among one surface of the first reflective member (601) (e.g., the surface facing the second reflective member (602).
[0106] As will be described later, the structure of the receiving groove (611) or the protrusion (621) can maintain the distance between surfaces that transmit, reflect, or refract light in the light path guided to the image sensor (411) via the optical member (600) within a specified range. For example, when the protrusion (621) is at least partially received in the receiving groove (611) and the movement in the second extension direction (C2) is restricted, the first distance (G1) between the first transmission surface (TS1) and the second transmission surface (TS2), or the second distance (G2) between the first reflection surface (RS1) and the second reflection surface (RS2) can be maintained substantially constant. In one embodiment, even if the first reflection member (601) and the second reflection member (602) move relative to each other in the first extension direction (C1) mentioned above, the distances (G1, G2) between the reflection or refracting surfaces may not substantially change. In one embodiment, when the first reflective member (601) and the second reflective member (602) move relative to each other in the aforementioned second extension direction (C2), the distance (G1, G2) between the reflecting or refracting surfaces may differ from the design specifications. For example, in the embodiment(s) of the present disclosure, when the reflective members (601, 602) are coupled to each other, the structure of the receiving groove (611) or the protrusion (621) can suppress distortion of optical performance and implement an optical member (600) that meets the design specifications.
[0107] According to one embodiment, the first reflective member (601) may include a first transmissive surface (TS1) that receives light or reflects the incident light and / or a first reflective surface (RS1). The first transmissive surface (TS1) may be arranged to be inclined with respect to the first optical surface (OS1) and may refer to a surface through which external light (OL) is incident on the optical member (600) (e.g., the first reflective member (601)). The first reflective surface (RS1) may be understood as, for example, an inclined surface with respect to the first optical surface (OS1) and / or the first transmissive surface (TS1) and may reflect at least a portion of light traveling within the optical member (600) (e.g., the first reflective member (601)). In one embodiment, the optical member (600) (e.g., the first reflective member (601)) may include a reflective coating or mirror arranged on the first reflective surface (RS1).
[0108] According to one embodiment, when viewed in a side view as in FIG. 8, the first optical surface (OS1), the first transmissive surface (TS1) and / or the first reflective surface (RS1) may be arranged in a shape that substantially forms a triangle. For example, it may be understood that one of the first optical surface (OS1), the first transmissive surface (TS1) and / or the first reflective surface (RS1) connects the edges of the other two surfaces. However, it should be noted that in the illustrated embodiment, the first reflective member (601) is illustrated as a polygonal shape other than a triangle, by removing a portion that does not affect the path of externally incident light (OL) to reach the image sensor (411). In the embodiment described below, the first transmissive surface (TS1) and / or the first reflective surface (RS1) may be referred to as a 'first surface'. The first surface, together with the 'second surface' described below, may be understood as a surface that provides an area that transmits, reflects, or refracts light guided to the image sensor (411).
[0109] According to one embodiment, the first reflective member (601) may include first side surfaces (SS1) that provide at least a portion of the outer surface, together with the first optical surface (OS1), the first transmissive surface (TS1) and / or the first reflective surface (RS1). The first side surfaces (SS1) may be arranged substantially parallel to light propagating within the optical member (600), for example, light to be guided to the image sensor (411) or light incident perpendicularly to the first transmissive surface (TS1). Depending on the design of the optical member (600), the first side surfaces (SS1) may be arranged at an angle to light propagating within the optical member (600). In one embodiment, even if the first side (SS1)(s) is arranged at an angle with respect to the light propagation path inside the optical member (600), light (e.g., light to be guided to the image sensor (411) or light incident perpendicularly to the first transmission surface (TS1)) may not substantially intersect the first side (SS1)(s) inside the optical member (600).
[0110] Although not shown, a material that does not transmit light (hereinafter, referred to as a “light blocking material”) may be provided in at least a portion of an area where light does not transmit, an area where light does not reflect (or refract), and / or an area where light does not intersect. For example, a light blocking layer (or light blocking member), such as a light reflective coating or a light absorbing coating, may be provided in a region other than an area where light to be guided to the image sensor (411) transmits among the first transmission surface (TS1). The light blocking material may be provided, for example, on at least a portion of the surface of the guide wall (611a) or the first side surface (SS1). In one embodiment, the light blocking layer may be formed by printing, painting, coating, or deposition plating, and may be implemented in the form of a light blocking film or a light blocking sheet. In one embodiment, a light blocking member may be provided in a region other than an area where light to be guided to the image sensor (411) transmits among the first reflection surface (RS1) or the first optical surface (OS1). Such a shading member may be similarly provided for the second reflective member (602), which will be reviewed again with reference to FIG. 11.
[0111] In one embodiment, the second reflective member (602) can include a second optical surface (OS2) facing the first reflective member (601). When the second reflective member (602) includes a protrusion (621) on one side (e.g., the side facing the first reflective member (601), the second optical surface (OS2) can be understood as being substantially provided on the surface of the protrusion (621). For example, when the second reflective member (602) includes the protrusion (621), the second optical surface (OS2) can be understood as being implemented by a portion of the top surface of the protrusion (621). In one embodiment, when including the protrusion (621), the second reflective member (602) and / or the protrusion (621) can include a plurality of side surfaces (621a, 621b, 621c, 621d) extending vertically or obliquely from an edge of the second optical surface (OS2). In one embodiment, at least one of the plurality of side faces (621a, 621b, 621c, 621d) (e.g., side(s) indicated by reference numerals '621b' and / or '621d') may be arranged to face an inner wall of the receiving groove (611) (e.g., an inner surface (611b) of the guide wall (611a)) in a direction intersecting the first extension direction (C1) (e.g., a second extension direction (C2)) while being aligned parallel to the first extension direction (C1). For example, some of the plurality of side faces (621a, 621b, 621c, 621d) may allow or guide the first reflective member (601) and the second reflective member (602) to move relative to each other along the first extension direction (C1), and / or may inhibit the first reflective member (601) and the second reflective member (602) from moving relative to each other along the second extension direction (C2). For example, the protrusion (621) and the receiving groove (611) may contribute to implementing an optical member (600) that meets design specifications when combining the first reflective member (601) and the second reflective member (602) by setting the relative positions of the first reflective member (601) and the second reflective member (602).
[0112] According to one embodiment, at least one of the plurality of side faces (621a, 621b, 621c, 621d) (e.g., side face(s) indicated by reference numerals '621a' and / or '621c') may be exposed to the outer space of the receiving groove (621) while facing in the first extension direction (C1). For example, the protrusion (621) may enter the receiving groove (621) substantially along the first direction (D1) while being guided by the side face(s) indicated by reference numerals '621b' and / or '621d' (or the inner surface (611b) of the guide wall (611a)). However, the embodiment(s) of the present disclosure are not limited thereto, and the protrusion (621) may enter the receiving groove (611) along the direction in which the first reflective member (601) and the second reflective member (602) approach or move away from each other (e.g., the direction in which the second reflected light (RL2) of FIG. 8 travels or the opposite direction). In one embodiment, among the plurality of side surfaces (621a, 621b, 621c, 621d), the side(s) exposed to the external space of the receiving groove (611) (e.g., the side(s) indicated by reference numerals '621a' and / or '621c') may be arranged on a curved surface or a continuous plane that is continuous with at least a portion of the surface of the first reflective member (601) (e.g., the first side surface (SS1)(s)).
[0113] According to one embodiment, the optical member (600) may further include dummy grooves (699) provided at a boundary between the first reflective member (601) and the second reflective member (602). In one embodiment, the dummy grooves (699) may be provided at a boundary between a side surface (621a, 621b, 621c, 621d) of the protrusion (621) exposed to the external space of the receiving groove (611) and the surface of the first reflective member (601). In one embodiment, the optical member (600) and / or the camera module (500) may further include an adhesive (e.g., adhesive (799a) of FIG. 12) filled in the dummy grooves (699). For example, the adhesive (799a) may bond the first reflective member (601) and the second reflective member (602), thereby enhancing the mechanical stability of the optical member (600). In this way, the dummy groove (699) and / or adhesive (799a) may be provided at any portion of a boundary visible from the exterior of the optical member (600) (e.g., a boundary between the first reflective member (601) and the second reflective member (602). In one embodiment, a surface inclined with respect to the side surface (621a, 621b, 621c, 621d)(s) of the protrusion (621) and a surface inclined with respect to one surface of the first reflective member (601) may be combined to implement the dummy groove (699).
[0114] In one embodiment, the protrusion (621) and the receiving groove (611) substantially allow the first reflective member (601) to move relative to the second reflective member (602) along the first extension direction (C1), while being restrained to the second reflective member (602) in the second extension direction (C2). In describing the embodiments(s) of the present disclosure, the phrase “allowing movement along the first extension direction (C1)” may refer to an assembly process, and it should be noted that the first reflective member (601) and the second reflective member (602) may be restrained to each other in the first extension direction (C1) within a camera module (e.g., the camera module (500) of FIG. 6 or 7). In describing the embodiment(s) of the present disclosure, the phrase “bound to each other in the second extension direction (C2)” may refer to a state in which the first reflective member (601) and the second reflective member (602) are substantially fixed to each other in the second extension direction (C2).
[0115] According to one embodiment, the second reflective member (602) may include a second reflective surface (RS2) and / or a second transmissive surface (TS2) that reflects or externally transmits light propagating therein. The second transmissive surface (TS2) may be arranged to be inclined with respect to the second optical surface (OS2) and may refer to a surface that transmits light to be provided to the image sensor (411). In a structure in which external light (OL) is incident on the second reflective member (602) via the first reflective member (601), the second optical surface (OS2) may be understood as an incident surface of the second reflective member (602). The second reflective surface (RS2) may be understood as, for example, an inclined surface with respect to the second optical surface (OS2) and / or the second transmissive surface (TS2) and may reflect at least a portion of the light propagating within the optical member (600) (e.g., the second reflective member (602)). In one embodiment, the optical member (600) (e.g., the second reflective member (602)) may include a reflective coating or mirror disposed on the second reflective surface (RS2).
[0116] According to one embodiment, when viewed in the side view of FIG. 8, the second optical surface (OS2), the second transmissive surface (TS2) and / or the second reflective surface (RS2) may be arranged in a shape that substantially forms a triangle. For example, it may be understood that one of the second optical surface (OS2), the second transmissive surface (TS2) and / or the second reflective surface (RS2) connects the edges of the other two surfaces. However, it should be noted that in the illustrated embodiment, the second reflective member (602) is illustrated as a polygonal shape other than a triangle, in which a portion is removed that does not affect the path of externally incident light (OL) to reach the image sensor (411). In the embodiment described below, the second transmissive surface (TS2) and / or the second reflective surface (RS2) may be referred to as a 'second surface'.
[0117] According to one embodiment, the second reflective member (602) may include second side surfaces (SS2)(s) that provide at least a portion of the outer surface, together with the second optical surface (OS), the second transmissive surface (TS2) and / or the second reflective surface (RS2). The second side surfaces (SS2)(s) may be arranged, for example, substantially parallel to light propagating within the optical member (600). Depending on the design of the optical member (600), the second side surfaces (SS2)(s) may be arranged at an angle with respect to light propagating within the optical member (600). In one embodiment, even if the second side surfaces (SS2)(s) are arranged at an angle with respect to the light propagation path within the optical member (600), light may not intersect the second side surfaces (SS2)(s) within the optical member (600).
[0118] Although not shown, a material that does not transmit light (hereinafter, referred to as a “light blocking material”) may be provided in at least a portion of an area where light does not transmit, an area where light does not reflect (or refract), and / or an area where light does not intersect. For example, a light blocking layer such as a light reflective coating or a light absorbing coating may be provided in an area other than an area where light to be guided to the image sensor (411) transmits among the second transmission surface (TS2). The light blocking material may be provided, for example, on at least a portion of the side surfaces (621a, 621b, 621c, 621d) of the protrusions. In one embodiment, the light blocking layer may be formed by printing, painting, coating, or deposition plating, and may be implemented in the form of a light blocking film or a light blocking sheet. In one embodiment, a light blocking member may be provided in an area other than an area where light to be guided to the image sensor (411) transmits among the second reflection surface (RS2) or the second optical surface (OS2).
[0119] In one embodiment, the first reflective member (601) and the second reflective member (602) may be constrained to not move along the second extension direction (C2) while being coupled to each other. For example, the receiving groove (611) may be configured to allow the protrusion (621) to move in the first extension direction (C1) in a plane parallel to the first optical surface (OS2) or the second optical surface (OS2), but restrict the protrusion (621) from moving in a direction crossing the first extension direction (C1). In one embodiment, the first reflective member (601) and the second reflective member (602) within the camera module (500) may be constrained to not move along the first extension direction (C1). In one embodiment, the first reflective member (601) and the second reflective member (602) can be bound to each other by an adhesive (e.g., adhesive (799a) of FIG. 12) while the protrusion (621) enters the receiving groove (611) along the first extension direction (C1) and is aligned at a designated position, thereby preventing movement of the first reflective member (601) and / or the second reflective member (602) along the first extension direction (C1) and / or the second extension direction (C2).
[0120] According to one embodiment, even if a relative displacement occurs between the first reflective member (601) and the second reflective member (602) in the first extension direction (C1), the optical member (600) can provide optical performance that meets the design specifications. For example, when the optical member (600) is arranged inside the camera module (500), the relative displacement between the first reflective member (601) and the second reflective member (602) in the first extension direction (C1) may not affect the optical performance of the optical member (600). Here, the phrase "relative displacement does not affect the optical performance" may refer to, for example, that even if a relative displacement occurs between the first reflective member (601) and the second reflective member (602) in the first extension direction (C1), the path of light guided to the image sensor (411) through the optical member (600) is not changed or distorted.
[0121] According to one embodiment, the receiving groove (611) and / or the protrusion (621) can limit the relative displacement between the first reflective member (601) and the second reflective member (602) in the second extension direction (C2), so that the relative distance between the first surface (TS1, RS1) and the second surface (TS2, RS2) can be maintained within a specified range. For example, in joining the first reflective member (601) and the second reflective member (602), the first distance (G1) between the first transmissive surface (TS1) and the second transmissive surface (TS2) and / or the second distance (G2) between the first reflective surface (RS1) and the second reflective surface (RS2) can substantially satisfy the design specifications. When the first optical surface (OS1) and the second optical surface (OS2) are coupled to face each other without a receiving groove (611) or a protrusion (621), the positions of the first reflective member (601) and the second reflective member (602) in the second extension direction (C2) may not conform to the design specifications. In this case, the path of the second reflected light (RL2) may be distorted so as to deviate from the design specifications. The embodiment(s) of the present disclosure provide an alignment structure using a receiving groove (611) and a protrusion (621), thereby enabling the first reflective member (601) and the second reflective member (602) to be coupled while implementing an optical path that conforms to the design specifications.
[0122] According to one embodiment, the stray light phenomenon or flare phenomenon may increase as external light (OL) is reflected or refracted at least once on the path through the optical member (600) to the image sensor (411). The optical member (600) according to the embodiment(s) of the present disclosure may facilitate the arrangement of a light-shielding structure by combining a plurality of reflective members (601, 602). In one embodiment, the light-shielding structure may substantially block light incident on the optical member (600) from an unintended direction or light traveling inside the optical member (600) along an undesigned path, thereby suppressing the stray light phenomenon or flare phenomenon.
[0123] According to one embodiment, the first transmissive surface (TS1), which is one of the first surfaces (TS1, RS1), may be arranged to face at least partially in an opposite direction with respect to the second transmissive surface (TS2), which is one of the second surfaces (TS2, RS2), with the optical surfaces (OS1, OS2) interposed therebetween. In one embodiment, the first reflective surface (RS1), which is one of the first surfaces (TS1, RS1), may be arranged to face at least partially in an opposite direction with respect to the second reflective surface (RS2), which is one of the second surfaces (TS2, RS2). Here, “face at least partially in an opposite direction” may refer to that the orientation vector component of the first surface (TS1, RS1) and the orientation vector component of the second surface (TS2, RS2) face at least partially in an opposite direction when based on the same coordinate system, or when based on the first optical surface (OS1) (or the second optical surface (OS2)). Taking the first transmission surface (TS1) and the second transmission surface (TS2) as examples, the horizontal direction vector components may point in opposite directions with respect to the first optical surface (OS1), and the vertical direction vector components may point in opposite directions. In one embodiment, taking the first reflection surface (RS1) and the second reflection surface (RS2) as examples where they are aligned perpendicular to the first optical surface (OS1), the orientation directions of the first reflection surface (RS1) and the second reflection surface (RS2) may be understood as having only vector components in directions parallel to the first optical surface (OS1) while the first reflection surface (RS1) and the second reflection surface (RS2) point in opposite directions. Here, it should be noted that "the first reflection surface (RS1) and the second reflection surface (RS2) are aligned perpendicular to the first optical surface (OS1)" is exemplarily mentioned to describe the orientation directions of the reflection surfaces (RS1, RS2), and the embodiment(s) of the present disclosure are not limited thereto.
[0124] In one embodiment, external light (OL) may be incident into the interior of the optical member (600) through one of the first transmission surface (TS1) and the second transmission surface (TS2), and the other of the first transmission surface (TS1) and the second transmission surface (TS2) may be arranged to substantially face the image sensor (411). In the illustrated embodiment, external light (OL) may be incident into the optical member (600) through the first transmission surface (TS1), and light (DL) that has passed through the second transmission surface (TS2) may be guided to the image sensor (411). As described with reference to FIG. 6 or FIG. 7, the camera module (500) may guide light focused or guided by at least one lens (421) to the image sensor (411) via the optical member (600) (e.g., the optical member (R) of FIG. 6 or FIG. 7). In an embodiment not shown, the lens (421)(s) of FIGS. 6 and 7 may be omitted, or a camera module may be implemented that further includes an additional lens(es) positioned between the optical member (600) and the image sensor (411). In one embodiment, the lens (421)(s) of FIGS. 6 and 7 may focus light guided through an additional prism (not shown) and provide it to the optical member (600). For example, in a camera module (500) including the optical member (R, 600) described above, additional prism(s) and / or lens(es) may be provided, and it is noted that the camera module (500) of the embodiment shown does not limit the present disclosure.
[0125] According to one embodiment, external light (OL) may be incident on the optical member (600) (e.g., the first reflective member (601)) by transmitting through the first transmissive surface (TS1). The light incident on the inside of the first reflective member (601) may be reflected at least once and then emitted to the outside of the first reflective member (601) through the first optical surface (OS1). For example, the external light (OL) may be reflected by at least the first reflective surface (RS1) inside the first optical member (601) and may proceed in a direction toward the first transmissive surface (TS1) (e.g., the first reflected light (RL1)). In one embodiment, the first reflected light (RL1) may be reflected again by the first transmissive surface (TS1) inside the first reflective member (601) and sequentially transmit through the first optical surface (OS1) and the second optical surface (OS2) to be incident on the second reflective member (602) (e.g., the second reflected light (RL2)). In one embodiment, the first reflective member (601) may be configured to emit light incident on the first transmissive surface (TS1) in a direction perpendicular to the first transmissive surface (TS1) in a direction perpendicular to the first optical surface (OS1) and / or the second optical surface (OS2). For example, when external light (OL) is incident perpendicularly to the first transmissive surface (TS1), the second reflected light (RL2) may substantially perpendicularly transmit through the first optical surface (OS1) and / or the second optical surface (OS2). The configuration of such an optical member (600) can suppress reflection, refraction, and / or scattering of light at an interface between media having different visible light refractive indices (e.g., the transmission surfaces (TS1, TS2)(s) and / or the optical surfaces (OS1, OS2)). For example, a camera module (600) can suppress an increase in stray light or flare while including the optical member (600) as described above.
[0126] According to one embodiment, the second reflected light (RL2) may be incident on the second reflective member (602) through the second optical surface (OS2), reflected at least once, and then emitted from the second reflective member (602) toward the image sensor (411). In one embodiment, the second reflected light (RL2) may be reflected once by the second transmissive surface (TS2) inside the second reflective member (602), and then may proceed toward the second reflective surface (RS2) (e.g., third reflected light (RL3)). The third reflected light (RL3) may be, for example, reflected by the second reflective surface (RS2) inside the second reflective member (602), and then transmitted through the second transmissive surface (TS2) to be provided to the image sensor (411) (e.g., fourth reflected light or detection light (DL)). In one embodiment, a reflective layer or reflective coating having a high reflectivity may be provided on the first reflective surface (RS1) or the second reflective surface (RS2), and the first reflected light (RL1) (or the second reflected light (RL2)) inside the optical member (600) may be incident on the first transmissive surface (TS1) (or the second transmissive surface (TS2)) at an angle that satisfies the total reflection condition.
[0127] FIG. 11 is a perspective view showing a second reflective member (602a) (e.g., the second reflective member (602) of FIG. 10) among optical members (e.g., the optical member (R, 600) of FIGS. 6 to 8) of a camera module (e.g., the camera module (500) of FIG. 6 or 7) according to one embodiment of the present disclosure.
[0128] FIG. 11 illustrates, for example, a configuration in which the above-described light-shielding structure (629) is provided, and the light-shielding structure (629) can be implemented by a printing layer, a coating layer, a deposition layer, a plating layer, a light-shielding film, and / or a light-shielding sheet. The light-shielding structure (629) can be provided, for example, on at least a portion of an edge of the first optical surface (OS1) and / or the second optical surface (OS2). For example, the first optical surface (OS1) and / or the second optical surface (OS2) described above are regions through which light to be guided to the image sensor (411) transmits, and when a region providing an optical path on the first reflective member (601) or the second reflective member (602, 602a) is determined, the light-shielding structure (629) can be provided in the remaining region. In one embodiment, the guide wall (611a) surrounding at least a portion of the receiving groove (611) can be provided in a region that is not substantially a region providing an optical path. For example, light to be guided to the image sensor (411) may transmit through a portion of the bottom surface of the receiving groove (611) or a portion of the top surface of the protrusion (621). As mentioned above, such a light-shielding structure (629) may further be provided on the first side (SS1)(s), the second side (SS2)(s), and / or the side surfaces (621a, 621b, 621c, 621d) of the protrusion (621). In one embodiment, an additional light-shielding structure may be provided on at least a portion of the edges of the transmissive surfaces (TS1, TS2) and / or the edges of the reflective surfaces (RS1, RS2).
[0129] According to one embodiment, when the light-shielding structure (629) is implemented as a layer, film and / or sheet having a specified thickness, a gap corresponding to the thickness of the light-shielding structure (629) may be formed between the first optical surface (OS1) and the second optical surface (OS2). In one embodiment, a portion of an edge of the first optical surface (OS1) and / or the second optical surface (OS2) may include a recess corresponding to the thickness of the light-shielding structure (629). For example, when the light-shielding structure (629) is arranged in the recess of the second optical surface (OS2), the surface of the light-shielding structure (629) may be arranged to form a continuous plane or a continuous curved surface with the second optical surface (OS2). In this case, the first optical surface (OS1) and the second optical surface (OS2) may be arranged to substantially contact each other.
[0130] FIG. 12 is a drawing showing an optical member (700) (e.g., optical member (R, 600) of FIGS. 6 to 8) of a camera module (e.g., camera module (500) of FIG. 6 or 7) according to one embodiment of the present disclosure.
[0131] Referring to FIG. 12, the optical member (700) may include a first guide wall (711b) provided on the first reflective member (701) and a second guide wall (721b) provided on the second reflective member (702). The first guide wall (711b) may, for example, extend along a first extension direction (C1) and be arranged to face one side of the second reflective member (702) in a second extension direction (C2). In one embodiment, the second guide wall (721b) may extend along the first extension direction (C1) and be arranged to face one side of the first reflective member (701) in the second extension direction (C2). In one embodiment, the second guide wall (721b) may be aligned in a direction facing the first guide wall (711b) in the second extension direction (C2). For example, the first guide wall (701b) and the second guide wall (721b) may restrict the first reflective member (701) from moving in a positive direction in the second extension direction (C2) with respect to the second reflective member (702), and / or may restrict the second reflective member (702) from moving in a negative direction in the second extension direction (C2) with respect to the first reflective member (701).
[0132] According to one embodiment, when the first reflective member (701) and the second reflective member (702) are coupled to each other with the optical surfaces (OS1, OS2) facing each other, the first guide wall (711b) may be in close contact with one side of the second reflective member (702), and the second guide wall (721b) may be in close contact with one side of the first reflective member (701). When viewed from the appearance of the optical member (701), a dummy groove (799) (e.g., a dummy groove (699) of FIG. 8) may be formed at the boundary between the first reflective member (701) and the second reflective member (702) by a combination of inclined surfaces (713, 723) (or curved surfaces), and at least a portion of the dummy groove (799) may be filled with an adhesive (799a). The first inclined surface (713) (or curved surface) of the first reflective member (701) may be arranged inclined or curved with respect to another surface of the first reflective member (701), and the second inclined surface (723) of the second reflective member (702) may be arranged inclined with respect to another portion of the surface of the second reflective member (702) (e.g., the second transmissive surface (TS2)). For example, when the first reflective member (701) and the second reflective member (702) are combined, the first The inclined surface (713) and the second inclined surface (723) are arranged adjacent to each other, and a dummy groove (799) can be implemented by the relative inclination angle of the first inclined surface (713) and the second inclined surface (723). In one embodiment, the inclined surfaces (713, 723) can be understood as being arranged to be inclined with respect to a surface among the surfaces of the reflective members (701, 702) that provides an optical surface (OS1, OS2).
[0133] According to one embodiment, the optical member (700) (or the camera module (500) of FIG. 6) may further include an adhesive (799a) filled in at least a portion of the dummy groove (799). The adhesive (799a) filled in the dummy groove (799) may, for example, restrict the first reflective member (701) from moving in a negative direction in the second extension direction (C2) with respect to the second reflective member (702), and / or restrict the second reflective member (702) from moving in a positive direction in the second extension direction (C2) with respect to the first reflective member (701). In one embodiment, the dummy groove (799) may further be provided at a boundary between a first side (e.g., the first side (SS1) of FIG. 9) of the first reflective member (701) and a second side (e.g., the second side (SS2) of FIG. 10) of the second reflective member (702). For example, the adhesive structure may be provided on at least a portion of the boundary between the first reflective member (701) and the second reflective member (702) on the outer surface of the optical member (700).
[0134] FIG. 13 is a drawing showing an optical member (800) (e.g., optical member (R, 600) of FIGS. 6 to 8) of a camera module (e.g., camera module (500) of FIG. 6 or 7) according to one embodiment of the present disclosure.
[0135] In the above-described embodiment, the optical member (600, 700) is exemplified as being implemented by combining two reflective members (601, 602, 701, 702). However, the embodiment(s) of the present disclosure are not limited to the above-described embodiment, and as exemplified in FIG. 13, three or more reflective members (801, 802, 803) may be combined to implement one optical member (800). Among three or more reflective members (801, 802, 803), a structure of the above-described receiving groove (e.g., receiving groove (611) of FIG. 9) (and / or a protrusion (e.g., a protrusion (621) of FIG. 10)), a light-shielding structure (e.g., light-shielding structure (629) of FIG. 11) and / or an adhesive structure (e.g., adhesive (799a) of FIG. 12)) may be provided between two reflective members that are coupled to face each other, and a detailed description thereof will be omitted.
[0136] As illustrated in FIG. 13, in addition, in the optical member (800) including a plurality of reflective members (801, 802, 803) as in the above-described embodiment, the reflective members (801, 802, 803) may have a polygonal columnar shape. In one embodiment, by combining reflective members (801, 802, 803) having various shapes, an optical member (800) having a polygonal columnar shape, such as a triangular columnar shape or a quadrangular (e.g., rectangular, square, parallelogram, and / or trapezoidal) columnar shape, may be implemented. For example, it is noted that the embodiments of the present disclosure are not limited to the shapes of the reflective members (801, 802, 803)(s) and / or the optical members (600, 700, 800) as in the above-described embodiment.
[0137] According to one embodiment, the optical member (800) may include a first transmission surface (TS1) through which external light is incident, and a second transmission surface (TS2) arranged to face an image sensor (e.g., the image sensor (411) of FIG. 6 or 7). When the optical member (800) has a trapezoidal column shape, the first transmission surface (TS1) and the second transmission surface (TS2) may be understood as being arranged substantially on one plane. In one embodiment, when the optical member (800) has a parallelogram column shape or a trapezoidal column shape, the number of times light is reflected in the optical path from the first transmission surface (TS1) to the second transmission surface (TS2) may be implemented in various ways. For example, depending on the relative arrangement angles of the transmission surfaces (TS1, TS2)(s) and the reflection surfaces (RS1, RSn)(s), light incident on the trapezoidal column-shaped optical member (800) through the first transmission surface (TS1) may be reflected at least twice inside the optical member (800) and then provided to the image sensor (411) through the second transmission surface (TS2). In one embodiment, light incident on the optical member (800) perpendicular to the first transmission surface (TS1) may propagate perpendicularly to the optical surfaces (e.g., the optical surfaces (OS1, OS2) of FIGS. 8 to 10) between the first reflection member (801) and the second reflection member (802) and / or between the second reflection member (802) and the third reflection member (803).
[0138] FIG. 14 is a first perspective view illustrating a camera module (900) (e.g., the camera module (500) of FIG. 6 or FIG. 7) according to one embodiment of the present disclosure. FIG. 15 is a second perspective view illustrating a camera module (900) according to one embodiment of the present disclosure.
[0139] For the sake of simplicity of the drawing, some components of FIG. 15 are omitted in FIG. 14, and some components of FIG. 14 are omitted in FIG. 15.
[0140] Referring to FIGS. 14 and 15 , the camera module (900) may include a lens (921)(s) (e.g., the lens assembly (421) of FIG. 6 or 7), an optical member (923) (e.g., the optical member (R, 600) of FIGS. 6 to 8 ), and / or an image sensor (925) (e.g., the image sensor (411) of FIG. 6 or 7 ). In one embodiment, the optical member (923) and / or the image sensor (925) may be substantially housed within the casing (901), and the lens (921)(s) may be housed in a barrel structure (911) provided on one side of the casing (901). The optical member (923) may, for example, guide light focused or guided by the lens (921)(s) to the image sensor (925) by reflecting it at least once.
[0141] The rectangular coordinate system of the illustrated embodiment refers to, for example, the rectangular coordinate system of FIGS. 2 to 6, but it should be noted that the embodiment of the present disclosure is not limited thereto. For example, the arrangement of the camera module (900) in an electronic device to be actually manufactured may be different from the illustrated embodiment. In one embodiment, the alignment direction of the lens (921)(s) or the direction in which external light is incident on the optical member (923) may be understood as being substantially parallel to the Z-axis. In one embodiment, the direction in which light is emitted from the optical member (923) and / or the direction in which light is incident on the image sensor (925) may be understood as being substantially parallel to the Z-axis. When the optical member (923) is a parallelogram as in the illustrated embodiment, light may be incident on the image sensor (923) along the +Z direction. Unlike the illustrated embodiment, when the optical member (923) has a trapezoidal shape, the image sensor (925) can be placed at a different location and the light incident on the image sensor (925) can travel along the -Z direction.
[0142] According to one embodiment, when implementing the optical member (923), the first extension direction (C1) of FIGS. 8 to 10 may be substantially parallel to the X-axis direction of FIG. 14. In one embodiment, when implementing the optical member (923), the second extension direction (C2) of FIGS. 8 to 10 described above may be a direction inclined with respect to the XY plane of FIG. 14. Among the light focused by the lens (921)(s), light incident perpendicularly to the surface of the optical member (923) (e.g., the first transmission surface (TS1) of FIG. 8) may propagate perpendicularly to the optical surface (e.g., the optical surface (OS1, OS2)(s) of FIG. 8) inside the optical member (923).
[0143] According to one embodiment, the camera module (900) may further include a first carrier (951) providing an auto-focus function and a second carrier (953) providing an image stabilization function, and the image sensor (925) may move with respect to the optical member (923) according to the operation of the first carrier (951) and the second carrier (953). In one embodiment, the first carrier (951) may be arranged to be reciprocally movable in a direction toward or away from the optical member (923) inside the casing (901). For example, the first carrier (951) may implement a focus control function by linearly reciprocating the image sensor (925) along the Z-axis direction. In one embodiment, a guide structure by a plurality of guide balls (955) may be implemented between the first carrier (951) and the inner wall of the casing (901). For example, when the first carrier (951) makes a linear reciprocating motion inside the casing (901), a plurality of guide balls (955) can guide the linear reciprocating motion of the first carrier (951) while reducing the frictional area.
[0144] According to one embodiment, the second carrier (953) is disposed on the first carrier (951) and can reciprocate linearly in the Z-axis direction together with the first carrier (951). In one embodiment, the second carrier (953) can be disposed so as to be horizontally movable on the first carrier (951). For example, the second carrier (953) can reciprocate along at least two directions with respect to the first carrier (951) in a plane intersecting the Z-axis. In one embodiment, it can be understood that the second carrier (953) moves horizontally along two mutually orthogonal directions in a plane perpendicular to the Z-axis direction (e.g., a plane parallel to the XY plane). The horizontal movement of the second carrier (953) can be understood as being based on vibrations applied to the camera module (900) when a photographing function is executed, for example, to perform an optical image stabilization function. In one embodiment, a second guide ball(s) not shown may be provided between the first carrier (951) and the second carrier (953) to guide the horizontal movement of the second carrier (953) relative to the first carrier (951) while reducing the frictional area during the horizontal movement.
[0145] According to one embodiment, the image sensor (925) may be disposed on the second carrier (953), such that a focus adjustment operation may be implemented according to the movement of the first carrier (951), and an image shake correction operation may be implemented according to the horizontal movement of the second carrier (953) with respect to the first carrier (951). In one embodiment, the second carrier (953) may be disposed to be horizontally movable within the casing (901), and the first carrier (951) may be disposed to be linearly reciprocating in the Z-axis direction on the second carrier (953). In this case, the image sensor (925) may be disposed on the first carrier (951).
[0146] According to one embodiment, the camera module (900) may further include driving members (904; 941, 942, 943) that provide driving force for a focus adjustment function and / or an image stabilization function. The driving members (904) may be implemented by a voice coil motor including a coil and a magnet, and may generate a driving force for the focus adjustment function and / or an image stabilization function based on an electric signal applied to the coil. In one embodiment, the first driving member (941) among the driving members (904) may be disposed in an area facing the optical members (923) and / or the carriers (951, 953) in the Y-axis direction, the second driving member (942) among the driving members (904) may be disposed in an area facing the optical members (923) and / or the carriers (951, 953) in the X-axis direction, and / or the third driving member (943) among the driving members (904) may be disposed in an area facing the optical members (923) and / or the carriers (951, 953) in the Y-axis direction. In one embodiment, when the first driving member (941) is defined as being disposed in the -Y direction with respect to the optical member (923), the third driving member (943) may be understood as being disposed in the +Y direction with respect to the optical member (923). For example, the first driving member (941) and the third driving member (943) may be arranged to face each other at least partially with the optical member (923) therebetween.
[0147] According to one embodiment, when one of the first driving member (941) and the third driving member (943) provides a driving force to move the first carrier (951) in the Z-axis direction, the other of the first driving member (941) and the third driving member (943) can provide a driving force to move the second carrier (953) in the Y-axis direction (or the X-axis direction). In this case, the second driving member (942) can provide a driving force to move the second carrier (953) in the X-axis direction (or the Y-axis direction). However, the embodiment(s) of the present disclosure are not limited to the above-mentioned with respect to the direction of the driving force generated by the driving members (904), and the position and direction of the driving force may be implemented differently from the illustrated embodiment depending on the winding direction of the conductor implementing the coil in the driving member (904) or the relative arrangement of the coil and the magnet within one driving member (904).
[0148] In one embodiment, the camera module (900) may further include a flexible printed circuit board (903) extending from the image sensor (925). The flexible printed circuit board (903) may provide wiring for, for example, supplying power to the image sensor (925) or transmitting data acquired from the image sensor (925) to a processor (e.g., the processor (120) of FIG. 1). In one embodiment, the flexible printed circuit board (903) may include a first extension portion (931) having one end connected to the image sensor (925), a second extension portion (932) extending from the other end of the first extension portion (931), and a third extension portion (933) extending from one end of the second extension portion (932). In one embodiment, the first extension portion (931) may be at least partially coplanar with the image sensor (925).
[0149] In one embodiment, the second extension (932) may be understood to be arranged obliquely or perpendicularly with respect to the first extension (931). In one embodiment, the third extension (933) may be understood to be arranged obliquely or perpendicularly with respect to the first extension (931) and obliquely or perpendicularly with respect to the second extension (932). For example, the first extension (931) may extend along the X-axis direction while being substantially parallel to the XY plane, the second extension (932) may extend along the Y-axis direction while being substantially parallel to the YZ plane, and / or the third extension (933) may extend along the X-axis direction while being substantially parallel to the XZ plane. In one embodiment, the first extension (931) may be positioned to at least partially face one of the transmissive surfaces (e.g., transmissive surfaces TS1, TS2 of FIG. 8) of the optical member (923), the second extension (932) may be positioned to at least partially face one of the reflective surfaces (e.g., reflective surfaces RS1, RS2 of FIG. 8) of the optical member (923), and / or the third extension (933) may be positioned to at least partially face one of the side surfaces (e.g., the first side surfaces SS1(s) of FIG. 9 and / or the second side surfaces SS2(s) of FIG. 10) of the optical member (900).
[0150] According to one embodiment, the arrangement of the flexible printed circuit board (903) as described above can facilitate movement of the image sensor (925) with respect to the optical member (923). Here, the term “movement of the image sensor” may refer to, for example, a reciprocating movement in the Z-axis direction for auto-focus adjustment, or a horizontal movement for image shake correction. In one embodiment, in the auto-focus operation, the second extension portion (932) and the third extension portion (933) may impede the movement of the image sensor (925), but the first extension portion (931) may allow the image sensor (925) to reciprocate in the Z-axis direction as it is transformed into a flat shape and a curved shape. Similarly, in the image stabilization operation, the first extension (931) may impede the horizontal movement of the image sensor (925), but the second extension (932) (or the third extension (933)) may allow the image sensor (925) to reciprocate in the X-axis direction (or Y-axis direction) as it is deformed into a flat shape and a curved shape. In this way, the structure in which the flexible printed circuit board (903) is arranged around the three sides of the optical member (925) can facilitate the movement of the image sensor (925) in the operation of performing the auto-focus function or the image stabilization function. In one embodiment, the auto-focus function or the image stabilization function may be implemented by moving the lens (921)(s), in which case the movement of the image sensor (925) may be unnecessary, and therefore the arrangement of the flexible printed circuit board (903) may be implemented differently from the illustrated embodiment.
[0151] FIG. 16 is a diagram illustrating the arrangement of a camera module (991, 900) (e.g., the camera modules (205, 212, 213, 500, 900) of FIGS. 3, 6, 7, 14, and / or 15) in an electronic device (e.g., the electronic devices (101, 200, 300, 400) of FIGS. 1 to 6) according to one embodiment of the present disclosure. FIG. 17 is a diagram illustrating an electronic device (1000) (e.g., the electronic devices (101, 200, 300, 400) of FIGS. 1 to 6) including a camera module (991, 900) according to one embodiment of the present disclosure.
[0152] As mentioned above, by mounting multiple camera modules with different optical characteristics (e.g., angles of view), high-quality captured images can be acquired using miniaturized electronic devices. FIGS. 16 and 17 may be examples of arrangements when multiple camera modules (991, 900) are mounted on one electronic device (1000). In describing the embodiment of FIG. 16 or FIG. 17, the second camera module (900) is substantially an example of the camera module described above (e.g., the camera modules (205, 212, 213, 500, 900) of FIGS. 3, 6, 7, 14, and / or 15), and the reference numerals in the drawings may be assigned the same numbers as the camera modules of FIGS. 14 and 15.
[0153] Referring to FIGS. 16 and 17, the electronic device (1000) may include at least one first camera module (991) provided as a standard camera, a wide-angle camera, and / or an ultra-wide-angle camera, and a second camera module (900) disposed adjacent to the first camera module (991), wherein the second camera module (900) may provide higher performance than the first camera module (991) in terms of a telephoto function. For example, the second camera module (900) may be understood to have a smaller field of view (FOV) or a longer focal length than the first camera module (991). In one embodiment, the second camera module (900) may be one of the camera modules including the optical member described above (e.g., the optical member (R, 600, 923) of FIGS. 6 to 8, FIG. 14, and / or FIG. 15). In one embodiment, the electronic device (1000) (e.g., the processor (120) of FIG. 1) can acquire a subject image using at least one of the first camera module (991)(s) and the second camera module (900), and can synthesize the images acquired from the first camera module (991)(s) and the second camera module (900) to generate an image of further improved quality.
[0154] According to one embodiment, the electronic device (1000) may include a rear plate (1180), a cover plate (1185), and / or opening areas (1012) provided in the cover plate (1185). Since this embodiment of the electronic device (1000) may be similar to the embodiments of FIGS. 2 to 6, a detailed description thereof will be omitted. The first camera module (991)(s) and / or the second camera module (900) may be arranged corresponding to any one of the opening areas (1012). In one embodiment, among the opening areas (1012), the first camera module (991)(s) may be arranged in two opening areas (1012) arranged in the left first row of FIG. 17, and the second camera module (900) may be arranged in the right opening area (1012) of FIG. 17. In arranging the second camera module (900), it can be understood that the lens (921)(s) of FIG. 14 or FIG. 15 are arranged substantially aligned with one of the aperture regions (1012), and the optical member (923) (or image sensor (925)) of FIG. 14 or FIG. 15 is arranged to the right of the lens (921)(s). In one embodiment, the second camera module (900) having a relatively large length by including the optical member (923) is arranged inside the first camera module (991)(s), and the first camera module (991)(s) is arranged adjacent to one side of the housing (1001) (e.g., the side (210C) of FIG. 2), so that the first camera module (991)(s) is arranged in an area between the edge of the electronic device (1000) and the second camera module (900). In a structure in which a plurality of first camera modules (991) are provided, it can be understood that the first camera modules (991) are arranged along the Y-axis direction.
[0155] The arrangement of these camera modules (991, 900) may be useful in securing area for additional electronic components (1019) (e.g., a light such as a flash, an infrared sensor for measuring distance or depth, and / or a microphone for detecting sound in the shooting direction) in the area provided by the cover plate (1185). In one embodiment, when a plurality of first camera modules (991) are provided and arranged adjacent to the edge of the electronic device (1000), area for additional electronic components (1019) may be secured above or below the second camera module (900). For example, additional electronic components (1019) such as a flash or infrared radar may be placed in the upper or lower area of the second camera module (900).
[0156] According to one embodiment, when the second camera module (900) (and / or the optical member (923)) includes a relatively long optical member (923) compared to other camera modules (e.g., the first camera module (991)(s)), the second camera module (900) (and / or the optical member (923)) may be arranged substantially parallel to the X-axis direction, thereby facilitating securing of a space for arranging various electric / electronic components or a capacity of a battery (e.g., the battery (350) of FIG. 4) inside the electronic device (1000). For example, since the battery (350) is generally manufactured in a rectangular shape, when the optical member (923) is arranged substantially parallel to the Y-axis, the rectangular-shaped battery (350) arrangement space may interfere with the optical member (923). Therefore, by arranging the optical member (923) substantially parallel to the X-axis direction, interference with the battery (350) arrangement space may be suppressed or expansion of the battery (350) capacity may be facilitated. In one embodiment, when the optical member (923) is arranged substantially parallel to the X-axis direction and the battery (350) capacity is maintained the same, the degree of design freedom in the arrangement of electrical / electronic components can be increased.
[0157] As described above, the camera module (e.g., the camera module (205, 212, 213, 500, 900) of FIGS. 3, 6, 7, 14 and / or 15) and / or the electronic device (e.g., the electronic device (101, 200, 300, 400, 1000) of FIGS. 1 to 6 and / or 17) of one embodiment of the present disclosure may be miniaturized and easily implement a telephoto function by including an optical member (e.g., the optical member (R, 600, 923) of FIGS. 6 to 8, 14 and / or 15) that reflects or refracts light guided to the image sensor (e.g., the image sensor (411, 925) of FIGS. 6, 7, 14 and / or 15) at least once. For example, since the degree of freedom in the design of the optical path is improved, the camera module can be easily placed in a narrow space while providing telephoto performance. According to one embodiment, since a plurality of reflective members (e.g., reflective members (601, 602) of FIG. 8) are combined to implement an optical member, the placement of a light-shielding structure (e.g., light-shielding structure (629) of FIG. 11) can be facilitated. For example, the optical member can suppress stray light or flare phenomena in the camera module. In one embodiment, when combining a plurality of reflective members, an alignment position is determined using a fastening or guiding structure (e.g., a receiving groove (611) and a protrusion (621) of FIGS. 8 to 10), so that the optical member can provide performance that meets the design specifications.
[0158] 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 pertains from the description of the above-described embodiment(s).
[0159] As described above, according to one embodiment of the present disclosure, a camera module (e.g., the camera module (205, 212, 213, 500, 900) of FIGS. 3, 6, 7, 14 and / or 15) comprises a first reflective member (e.g., the first reflective member (601) of FIG. 8 or 9) including a receiving groove formed on one surface (e.g., the receiving groove (611) of FIG. 9) and a first optical surface (e.g., the first optical surface (OS1) of FIG. 8) provided within an area provided by the receiving groove), a protrusion (e.g., the protrusion (621) of FIG. 8 or 10) protruding from the one surface and at least partially received in the receiving groove, and a second reflective member (e.g., the second optical surface (OS2) of FIG. 8) provided on one surface of the protrusion and arranged to face the first optical surface The light may include a reflective member (602)), and an image sensor (e.g., image sensor (411, 925) of FIGS. 6, 7, 14 and / or 15) configured to detect at least a portion of the light guided through the first optical surface and the second optical surface. In one embodiment, the receiving groove may be configured to allow the protrusion to move in a first extension direction (e.g., the first extension direction (C1) of FIG. 8) in a plane parallel to the first optical surface or the second optical surface, and may be configured to restrict the protrusion from moving in a second extension direction (e.g., the second extension direction (C2) of FIG. 8) intersecting the first extension direction.
[0160] In one embodiment, the first reflective member may include a first surface inclined with respect to the first optical surface (e.g., the first transmissive surface (TS1) or the first reflective surface (RS1) of FIG. 8), and the second reflective member may include a second surface inclined with respect to the second optical surface (e.g., the second transmissive surface (TS2) or the second reflective surface (RS2) of FIG. 8). In one embodiment, the second surface may be arranged to face at least partially opposite to the first surface, with the first optical surface or the second optical surface therebetween. In one embodiment, the receiving groove and the protrusion may be configured to maintain a distance between the first surface and the second surface (e.g., the first distance (G1) and / or the second distance (G2) of FIG. 8) within a specified range.
[0161] In one embodiment, the first surface or the second surface may be configured to transmit or reflect light guided to the image sensor.
[0162] In one embodiment, the protrusion may include a plurality of side surfaces (e.g., side surfaces 621a, 621b, 621c, 621d of FIG. 10) extending vertically or obliquely from an edge of the second optical surface. In one embodiment, at least one of the plurality of side surfaces may be aligned parallel to the first extension direction and disposed to face the inner wall of the receiving groove in a direction intersecting the first extension direction.
[0163] According to one embodiment, at least one of the plurality of side faces may be exposed to the external space of the receiving groove while being arranged to face the first extension direction.
[0164] According to one embodiment, a side of the plurality of sides exposed to the external space of the receiving groove may be arranged to form a continuous plane or continuous curved surface with at least a portion of the surface of the first reflective member.
[0165] According to one embodiment, the camera module as described above may further include a dummy groove (e.g., a dummy groove (699, 799) of FIG. 8 or FIG. 12) provided at a boundary between a side exposed to the external space of the receiving groove among the plurality of sides and at least a portion of a surface of the first reflective member, and an adhesive (e.g., an adhesive (799a) of FIG. 12) filled in at least a portion of the dummy groove.
[0166] According to one embodiment, light incident perpendicularly on one surface of the first reflective member or the second reflective member may be configured to vertically transmit through the first optical surface or the second optical surface.
[0167] In one embodiment, the first reflective member may include a first transmissive surface (e.g., the first transmissive surface TS1 of FIG. 8) and a first reflective surface (e.g., the first reflective surface RS1 of FIG. 8) disposed at an angle with respect to the first transmissive surface. In one embodiment, the second reflective member may include a second transmissive surface (e.g., the second transmissive surface TS2 of FIG. 8) disposed to face an opposite direction of the first transmissive surface, and a second reflective surface (e.g., the second reflective surface RS2 of FIG. 8) disposed to face an opposite direction of the first reflective surface. In one embodiment, either the first transmissive surface or the second transmissive surface may be disposed to face the image sensor.
[0168] According to one embodiment, light incident perpendicularly to the other of the first and second transmission surfaces may be configured to perpendicularly transmit through the first optical surface or the second optical surface.
[0169] According to one embodiment, the camera module as described above may further include at least one lens (e.g., the lens assembly (421) of FIG. 6 or the lens (921)(s) of FIG. 14) that receives external light and guides it to the other of the first and second transmitting surfaces.
[0170] According to one embodiment, the camera module as described above may further include a first inclined surface (e.g., the first inclined surface (713) of FIG. 12) which is a part of the surface of the first reflective member, the first inclined surface formed to be inclined with respect to the one surface of the first reflective member, and a second inclined surface (e.g., the second inclined surface (723) of FIG. 12) which is a part of the surface of the second reflective member, the second inclined surface formed to be inclined with respect to the one surface of the second reflective member. In one embodiment, when the protrusion is received in the receiving groove, the first inclined surface and the second inclined surface may be configured to be adjacently disposed to form a dummy groove (e.g., the dummy groove (699, 799) of FIG. 8 or FIG. 12).
[0171] According to one embodiment, the camera module as described above may further include an adhesive (e.g., adhesive (799a) of FIG. 12) filled into at least a portion of the dummy home.
[0172] According to one embodiment, the camera module as described above may further include a light-blocking member (e.g., a light-blocking structure (629) of FIG. 11) provided on at least a portion of the edge of the first optical surface or at least a portion of the edge of the second optical surface.
[0173] According to one embodiment, the light-shielding member may include at least one of a printing layer, a coating layer, a deposition layer, a plating layer, a light-shielding film, or a light-shielding sheet.
[0174] In one embodiment, the camera module as described above may further include a flexible printed circuit board (e.g., a flexible printed circuit board (903) of FIG. 15) extending from the image sensor. In one embodiment, the flexible printed circuit board may include a first extension portion (e.g., a first extension portion (931) of FIG. 15) disposed at least partially coplanar with the image sensor, a second extension portion (e.g., a second extension portion (932) of FIG. 15) extending from the first extension portion and disposed at an angle with respect to the first extension portion, and a third extension portion (e.g., a third extension portion (933) of FIG. 15) extending from the second extension portion and disposed at an angle with respect to the first and second extension portions.
[0175] According to one embodiment, the first extension may be configured to allow the image sensor to reciprocate along a direction in which light is incident on the image sensor.
[0176] In one embodiment, the second extension or the third extension may be configured to allow the image sensor to move horizontally in a plane intersecting the direction in which light is incident on the image sensor.
[0177] According to one embodiment of the present disclosure, an electronic device (e.g., an electronic device (101, 200, 300, 400, 1000) of FIGS. 1 to 6 and / or 17) comprises at least one first camera module (e.g., a first camera module (991)(s) of FIG. 16 or 17), a second camera module (e.g., a camera module (205, 212, 213, 500, 900) of FIGS. 3, 6, 7, 14 to 17) disposed adjacent to the at least one first camera module and having a smaller field of view (FOV) than the at least one first camera module, the second camera module according to any one of claims 1 to 18, and a processor (e.g., a processor (120) of FIG. 1) configured to acquire a subject image using at least one of the at least one first camera module or the second camera module. May include.
[0178] According to one embodiment, the at least one first camera module may be disposed adjacent to one side of the electronic device and in an area between the one side of the electronic device and the second camera module.
[0179] While this disclosure has been described by way of example and example, it should be understood that the example is intended to be illustrative and not limiting. It will be apparent to those skilled in the art that various changes in form and detail may be made without departing from the overall scope of this disclosure, including the appended claims and their equivalents.
Claims
1. In the camera module (205, 212, 213; 500; 900), A first reflective member (601; 701) including a receiving groove (611) formed on one side and a first optical surface (OS1) provided within an area provided by the receiving groove; A second reflective member (602; 702) including a projection (621) protruding from one surface and at least partially accommodated in the receiving groove, and a second optical surface (OS2) provided on one surface of the projection and arranged to face the first optical surface; and An image sensor (411; 925) configured to detect at least a portion of light guided through the first optical surface and the second optical surface, A camera module wherein the receiving groove is configured to allow the protrusion to move in a first extension direction (C1) in a plane parallel to the first optical surface or the second optical surface, and is configured to restrict the protrusion from moving in a second extension direction (C2) intersecting the first extension direction.
2. In paragraph 1, The first reflective member comprises a first surface (TS1, RS1) inclined with respect to the first optical surface, and the second reflective member comprises a second surface (TS2, RS2) inclined with respect to the second optical surface. The second surface is arranged to face at least partially opposite to the first surface, with the first optical surface or the second optical surface interposed therebetween; A camera module wherein the receiving groove and the protrusion are configured to maintain a distance between the first surface and the second surface within a specified range.
3. A camera module in the second paragraph, wherein the first surface or the second surface is configured to transmit or reflect light guided to the image sensor.
4. In any one of claims 1 to 3, the protrusion includes a plurality of side surfaces (621a, 621b, 621c, 621d) extending vertically or obliquely from the edge of the second optical surface, A camera module wherein at least one of the plurality of side surfaces is aligned parallel to the first extension direction and is arranged to face the inner wall of the receiving groove in a direction intersecting the first extension direction.
5. In the fourth paragraph, a camera module exposed to the external space of the receiving groove while at least one of the other multiple sides is arranged to face the first extension direction.
6. In the fifth paragraph, a camera module in which a side exposed to the external space of the receiving groove among the plurality of side surfaces forms a continuous plane or continuous curved surface with at least a portion of the surface of the first reflective member.
7. In paragraph 6, A dummy groove (699, 799) provided at the boundary between the side exposed to the external space of the receiving groove among the above-mentioned multiple sides and at least a part of the surface of the first reflective member; and A camera module further comprising an adhesive (799a) filled into at least a portion of the above dummy home.
8. A camera module according to any one of claims 1 to 7, wherein light incident perpendicularly on one surface of the first reflective member or the second reflective member is configured to vertically transmit through the first optical surface or the second optical surface.
9. In any one of paragraphs 1 to 8, The first reflective member comprises a first transmissive surface (TS1) and a first reflective surface (RS1) arranged at an angle with respect to the first transmissive surface, The second reflective member includes a second transmitting surface (TS2) arranged to face in an opposite direction to the first transmitting surface, and a second reflective surface (RS2) arranged to face in an opposite direction to the first reflective surface. A camera module in which one of the first transparent surface and the second transparent surface is positioned to face the image sensor.
10. A camera module in accordance with claim 9, wherein light incident perpendicularly to the other of the first transmitting surface and the second transmitting surface is configured to vertically transmit through the first optical surface or the second optical surface.
11. In any one of paragraphs 9 to 10, A camera module further comprising at least one lens (421a, 421b; 921) that receives external light and guides it to the other of the first transmitting surface and the second transmitting surface.
12. In any one of paragraphs 1 to 11, As a first inclined surface (713) which is part of the surface of the first reflective member, the first inclined surface formed to be inclined with respect to the one surface of the first reflective member; and As a second inclined surface (723) which is part of the surface of the second reflective member, the second inclined surface is further formed to be inclined with respect to the one surface of the second reflective member, A camera module configured such that when the protrusion is received in the receiving groove, the first inclined surface and the second inclined surface are adjacently arranged to form a dummy groove (699; 799).
13. In paragraph 12, A camera module further comprising an adhesive filled into at least a portion of the dummy home.
14. In any one of paragraphs 1 to 12, A camera module further comprising a light shielding member (629) provided on at least a portion of the edge of the first optical surface or at least a portion of the edge of the second optical surface.
15. In electronic devices (101; 200; 300; 400; 1000), At least one first camera module (991); A second camera module (205; 212; 213; 500; 900) disposed adjacent to at least one first camera module and having a smaller field of view (FOV) than the at least one first camera module, the second camera module according to any one of claims 1 to 14; and An electronic device comprising a processor (120) configured to acquire a subject image using at least one of the first camera module or the second camera module.
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