Camera module and electronic device comprising same

Abstract

According to one embodiment of the present disclosure, a camera module may comprise: at least two lenses aligned along an optical axis; an optical member including a reflective surface for reflecting at least once light focused by the lenses; and an image sensor arranged to detect light reflected by the reflective surface. In one embodiment, the camera module and / or an optical system thereof satisfies the condition(s) presented in embodiment(s) of the present disclosure related to the arrangement of the lenses and the length of the optical path in the optical system and / or the condition(s) presented in embodiment(s) of the present disclosure related to the length of the incident surface and the emission surface of the optical member, and thus an image with improved quality can be obtained while telescopic performance in a miniaturized electronic device is provided. Other various embodiments are possible.

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] Electronic devices may refer to devices that perform specified functions according to the programs installed on them, such as home appliances, electronic notebooks, portable multimedia players, mobile communication terminals, tablet PCs, audio / video devices, desktop / laptop computers, and / or car navigation systems. 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 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 at least two lenses aligned along an optical axis, an optical member including a reflective surface that reflects light focused by the lenses at least once, and an image sensor arranged to detect the light reflected by the reflective surface. In one embodiment, the camera module and / or its optical system may satisfy the following [Conditional Expression 1] and [Conditional Expression 2].

[0006] [Condition 1]

[0007] 0.1 =< TL / OTTL =< 0.6

[0008] [Condition 2]

[0009] 1.25 =< Pin / Pout =< 10

[0010] Here, 'TL' may be the distance from the object-side surface vertex of the lens (hereinafter, 'the first lens') that is farthest from the optical member among the lenses to the image-side surface vertex of the lens (hereinafter, 'the n-th lens') that is closest to the optical member. In one embodiment, 'OTTL' may be the sum of a first distance measured along the optical axis from the object-side surface vertex of the first lens to the reflective surface, and a second distance from a point where the reflective surface intersects the optical axis to the image sensor. In one embodiment, 'Pin' may be the maximum length of the optical member measured parallel to the second distance measurement direction. In one embodiment, 'Pout' may be the maximum length of the optical member measured parallel to the first distance measurement direction.

[0011] According to one embodiment of the present disclosure, an electronic device may include a camera module and a processor configured to acquire an image of a subject using the camera module. In one embodiment, the camera module may include an optical member including at least two lenses aligned along an optical axis, a reflective surface that reflects light focused by the lenses at least once, and an image sensor arranged to detect the light reflected by the reflective surface. In one embodiment, the electronic device, the camera module, and / or its optical system may satisfy the following [Conditional Expression 1] and [Conditional Expression 2].

[0012] [Condition 1]

[0013] 0.1 =< TL / OTTL =< 0.6

[0014] [Condition 2]

[0015] 1.25 =< Pin / Pout =< 10

[0016] Here, 'TL' may be the distance from the object-side surface vertex of the lens (hereinafter, 'first lens') that is farthest from the optical member to the image-side surface vertex of the lens (hereinafter, 'n-th lens') that is closest to the optical member. In one embodiment, 'OTTL' may be the sum of a first distance measured along the optical axis from the object-side surface vertex of the first lens to the reflective surface, and a second distance from a point where the reflective surface intersects the optical axis to the image sensor. In one embodiment, 'Pin' may be the maximum length of the optical member measured parallel to the second distance measuring direction. In one embodiment, 'Pout' may be the maximum length of the optical member measured parallel to the first distance measuring direction.

[0017] 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.

[0018] FIG. 1 is a block diagram illustrating an electronic device within a network environment according to one embodiment of the present disclosure.

[0019] FIG. 2 is a perspective view showing the front of an electronic device according to one embodiment of the present disclosure.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] FIG. 8 is a drawing showing an optical system and / or a camera module including the same according to one embodiment of the present disclosure.

[0026] FIG. 9 is a drawing showing the optical system of FIG. 8 and / or a camera module including the same, according to one embodiment of the present disclosure.

[0027] FIG. 10 is a graph showing spherical aberration of the optical system of FIG. 8 and / or a camera module including the same, according to one embodiment of the present disclosure.

[0028] FIG. 11 is a graph showing astigmatism of the optical system of FIG. 8 and / or a camera module including the same, according to one embodiment of the present disclosure.

[0029] FIG. 12 is a graph showing the distortion rate of the optical system of FIG. 8 and / or the camera module including the same, according to one embodiment of the present disclosure.

[0030] FIG. 13 is a drawing showing an optical system and / or a camera module including the same according to one embodiment of the present disclosure.

[0031] FIG. 14 is a graph showing spherical aberration of the optical system of FIG. 13 and / or a camera module including the same, according to one embodiment of the present disclosure.

[0032] FIG. 15 is a graph showing astigmatism of the optical system of FIG. 13 and / or a camera module including the same, according to one embodiment of the present disclosure.

[0033] FIG. 16 is a graph showing the distortion rate of the optical system of FIG. 13 and / or the camera module including the same, according to one embodiment of the present disclosure.

[0034] FIG. 17 is a drawing showing an optical system and / or a camera module including the same, according to one embodiment of the present disclosure.

[0035] FIG. 18 is a graph showing spherical aberration of the optical system of FIG. 17 and / or a camera module including the same, according to one embodiment of the present disclosure.

[0036] FIG. 19 is a graph showing astigmatism of the optical system of FIG. 17 and / or a camera module including the same, according to one embodiment of the present disclosure.

[0037] FIG. 20 is a graph showing the distortion rate of the optical system of FIG. 17 and / or the camera module including the same, according to one embodiment of the present disclosure.

[0038] FIG. 21 is a drawing showing a camera module according to one embodiment of the present disclosure.

[0039] FIG. 22 is a drawing illustrating a configuration in which stray light is blocked in the camera module of FIG. 21 according to one embodiment of the present disclosure.

[0040] Throughout the attached drawings, similar reference numbers may be assigned to similar parts, components and / or structures.

[0041] 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, electronic devices can be smaller and lighter by reducing their thickness. Miniaturized electronic devices can face challenges in integrating camera modules with superior optical performance. For example, while a greater number of lenses and / or larger lenses can facilitate the acquisition of superior optical performance in a camera module, miniaturized electronic devices can experience reduced design freedom in the arrangement of the lenses or image sensors. Therefore, multiple camera modules, each offering superior optical performance across different angular ranges, such as a telephoto camera, a wide-angle camera, an ultra-wide-angle camera, and / or a macro camera, can be integrated into a single electronic device. A telephoto camera, with a smaller angular range (or 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, when optical elements such as mirrors or prisms are placed, the arrangement of lenses or image sensors may become easier. However, when additional optical elements are placed, the number of reflections or refractions in the path of incident light to the image sensor may increase, which may cause an increase in light reaching the image sensor through paths other than the designed path. Light entering through non-designed paths, or resulting in a deterioration in image quality, may be referred to as "stray light" or "flare."

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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)).

[0050] 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.

[0051] 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.

[0052] 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).

[0053] 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).

[0054] 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).

[0055] 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.

[0056] 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.

[0057] 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).

[0058] 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.

[0059] 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.

[0060] 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).

[0061] 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.

[0062] 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.

[0063] 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).

[0064] 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.

[0065] 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).

[0066] 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.

[0067] 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).

[0068] 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.

[0069] 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)).

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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).

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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).

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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 positioned in areas (or spaces) overlapping the display (201).

[0084] According to one embodiment, 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 therein for acquiring external sound, and in one embodiment, multiple microphones may be disposed so as 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).

[0085] According to one embodiment, the sensor modules (204, 219) may generate electrical signals or data values ​​corresponding to an internal operating state of the electronic device (200) or an external environmental state. The sensor modules (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).

[0086] According to one embodiment, 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 the infrared light emitted by the flash (213) and reflected by the subject may be received through the third sensor module (219). The electronic device (200) or the processor of the electronic device (200) may detect depth information of the subject based on the point in time when the infrared light is received by the third sensor module (219).

[0087] In one embodiment, 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 (217) may include a sensor module disposed on a second surface (210B) of the housing (210).

[0088] In one embodiment, 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, for example, a light source that is linked to the operation of the camera module (205). The light-emitting element (206) may include, for example, an LED, an IR LED, and a xenon lamp.

[0089] According to one embodiment, 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.

[0090] 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.

[0091] 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.

[0092] According to one embodiment, the first support member (311) may be provided in at least a portion of a flat shape. In one embodiment, 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.

[0093] 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).

[0094] The memory may include, for example, volatile memory or non-volatile memory.

[0095] 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.

[0096] According to one embodiment, 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, 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.

[0097] According to one embodiment, 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).

[0098] 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).

[0099] In one embodiment, the camera assembly (307) can include at least one camera module, for example, at least one of the camera modules (212, 213) of FIG. 3. Within the electronic device (300), the camera assembly (307) can 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) can 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) can be generally aligned with one of the camera windows (312, 313, 319) and can 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 the camera module (212, 213) of FIG. 3, the electronic device (300) or the first support member (311) may include a structure such as at least one support wall or elastic member to mount or fix the camera assembly (307).

[0100] 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.

[0101] 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.

[0102] 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 and / or camera assembly (307) of FIG. 5) positioned corresponding to at least some of the transparent areas, and at least one light source (e.g., a flash or an infrared light source) positioned corresponding 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 be positioned or fixed to the inside of the rear plate (380) and / or the cover plate (385) 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). 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.

[0103] 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.

[0104] 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 a prism) are arranged between the lens(es) and the image sensor, as in the embodiment described below (e.g., the camera module (600) and / or the optical system thereof of FIG. 8), 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).

[0105] 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).

[0106] 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).

[0107] 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).

[0108] 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.

[0109] 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 of 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 implementing the path 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.

[0110] 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 forward and backward at least one of the first lens (421a) and / or the second lens (421b)(s). 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).

[0111] 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).

[0112] 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.

[0113] 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) may be more easily understood through the embodiments described below. In the embodiments of the present disclosure, the term "optical system" may be understood to include a lens assembly and / or optical member provided as a structure that focuses or guides external light to an image sensor.

[0114] FIG. 8 is a diagram illustrating an optical system and / or a camera module (600) including the same (e.g., the camera assembly (307) of FIG. 5, the camera module (500) of FIG. 6 or FIG. 7) according to one embodiment of the present disclosure. FIG. 9 is a diagram illustrating an optical system of FIG. 8 and / or a camera module (600) including the same, according to one embodiment of the present disclosure. FIG. 10 is a graph illustrating spherical aberration of the optical system of FIG. 8 and / or a camera module (600) including the same, according to one embodiment of the present disclosure. FIG. 11 is a graph illustrating astigmatism of the optical system of FIG. 8 and / or a camera module (600) including the same, according to one embodiment of the present disclosure. FIG. 12 is a graph illustrating a distortion rate of the optical system of FIG. 8 and / or a camera module (600) including the same, according to one embodiment of the present disclosure.

[0115] FIG. 10 is a graph showing spherical aberration of a camera module (600) according to one embodiment of the present disclosure, in which the horizontal axis represents a coefficient of longitudinal spherical aberration, and the vertical axis represents a normalized distance from the optical axis (O), and shows a change in longitudinal spherical aberration according to the wavelength of light. The longitudinal spherical aberration is shown for light having wavelengths of, for example, 656.3000 (NM, nanometer), 587.6000 (NM), 546.1000 (NM), 486.1000 (NM), and 435.8000 (NM), respectively. FIG. 11 is a graph showing astigmatic field curves of a camera module (600) according to one embodiment of the present disclosure, for light having a wavelength of 546.1000 (NM), where 'X' exemplifies a sagittal plane and 'Y' exemplifies a tangential plane (meridional plane). FIG. 12 is a graph showing distortion of a camera module (600) according to one embodiment of the present disclosure, for light having a wavelength of 546.1000 (NM). In the following description, the camera module (600)(s) is a structure including the above-described optical member (601) (e.g., the optical member (R) of FIGS. 6 and 7)(s) arranged between the lens (L1, L2, L3, L4)(s) and the image sensor (I), and it is noted that in a graph regarding spherical aberration, astigmatism, and / or distortion rate, negative / positive may be reversed depending on the number of times light is reflected and / or refracted by the optical member (R, 601)(s).

[0116] Referring to FIGS. 8 to 12, a camera module (600) (and / or an optical system thereof) according to one embodiment of the present disclosure may include a lens assembly (LA) (e.g., at least two lenses (L1, L2, L3, L4)), an optical member (601) including a reflective surface (RS)(s), and / or an image sensor (I) arranged to detect light reflected by the reflective surface (RS)(s). In the illustrated embodiment, the lens assembly (LA) may be exemplified as including four lenses (L1, L2, L3, L4). By satisfying the condition(s) described below in the arrangement of the lenses (L1, L2, L3, L4)(s) or their relative arrangement with respect to the image sensor (I), and / or the relative sizes of the light-transmitting surfaces (e.g., the incident surface (IS) and the exit surface (ES))(s) or the reflective surface (RS)(s) of the optical member (601), the camera module (600) and / or its optical system can suppress the degradation of image quality due to stray light or flare phenomena while implementing telephoto performance. In one embodiment, with respect to the camera module (600) and / or its optical system, at least some of the condition(s) described below can provide an environment suitable for the arrangement or implementation of, for example, a light-shielding structure (e.g., the light-shielding members (915; 915a, 915b) of FIG. 21). Here, the term 'light-shielding structure' may refer to a structure that blocks the propagation of light in an undesigned path or absorbs light that propagates in an undesigned path. In one embodiment, the shading structure or shading member may be implemented in the form of a layer formed by a process such as printing, painting, coating, deposition and / or plating, or may be implemented in the form of an attachment such as a film or sheet.

[0117] According to one embodiment, at least two lenses (L1, L2, L3, L4) can be sequentially aligned along the optical axis (O), and in the illustrated embodiment, the camera module (600) and / or lens assembly can include four lenses (L1, L2, L3, L4). The optical axis (O) is, for example, an imaginary axis passing through the object-side vertices and / or the image-side vertices of the lenses (L1, L2, L3, L4)(s), and can be a reference for the arrangement or alignment of the lenses (L1, L2, L3, L4). In one embodiment, even if the lenses (L1, L2, L3, L4)(s) rotate about the optical axis (O), the optical characteristics or optical performance of the camera module (600) may not change. In one embodiment, the lenses (L1, L2, L3, L4)(s) can focus or guide externally incident light to the optical member (601) and / or the image sensor (I). For example, light focused by the lenses (L1, L2, L3, L4)(s) can be incident on the optical member (601). The optical member (601) (e.g., the reflective surface (RS)) can, for example, reflect the light focused by the lenses (L1, L2, L3, L4)(s) at least once and guide it to the image sensor (I). The relative position or angle of the image sensor (I) with respect to the lenses (L1, L2, L3, L4)(s) can be implemented in various ways through the arrangement of the optical member (601) or the reflective surface (RS). For example, by arranging the optical member (601), the camera module (600) can be miniaturized while having good telephoto performance.

[0118] According to one embodiment, among the lenses (L1, L2, L3, L4), the lens that is arranged farthest from the image sensor (I) or the optical member (601) may be referred to as the first lens (L1). For example, when external light is incident, the lens through which the external light first passes may be defined as the first lens (L1). In one embodiment, the first lens (L1) may be referred to as the 'first lens arranged on the object side'. When the camera module (600) includes a plurality of lenses (L1, L2, L3, L4), an ordinal number such as 'first', 'second', 'third', 'fourth', ... 'nth' may be written together with each lens (L1, L2, L3, L4) according to the order in which external light passes when incident on the image sensor (I). In one embodiment, the lens that is positioned closest to the image sensor (I) or the optical member (601) among at least two lenses (L1, L2, L3, L4) may be referred to as the 'n-th lens'. The n-th lens in the camera module (600) of FIGS. 8 and 9 may be understood as the fourth lens (L4).

[0119] In one embodiment, the first lens (L1) may have positive refractive power. When the first lens (e.g., the first lens (L1)) positioned on the object side has positive refractive power, the size of the entire light flux may be reduced, facilitating miniaturization of the optical system or camera module (600). In one embodiment, the first lens (L1) may have a refractive index or dispersion value (e.g., Abbe number) within a specified range, thereby providing an environment in which chromatic aberration correction or a good focal length can be secured. This will be discussed further below.

[0120] According to one embodiment, similar to the first lens (L1), the n-th lens (e.g., the fourth lens (L4)) arranged closest to the image sensor (I) or the optical member (601) may have a refractive index within a specified range, thereby facilitating manufacturing and aberration correction. For example, the fourth lens (L4) may have a refractive index of approximately 1.6 or more and approximately 1.7 or less, thereby facilitating manufacturing of a material (e.g., plastic) that facilitates implementation of a design shape and providing an environment that facilitates control of aberrations such as field curvature and / or astigmatism. The configuration of this n-th lens will be discussed again below.

[0121] According to one embodiment, at least one lens having negative refractive power may be arranged between the first lens (L1) and the n-th lens (e.g., the fourth lens (L4)). For example, in the camera module (600, 700) or lens assembly (LA) of FIG. 9 or FIG. 13, the third lens (L3) may have negative refractive power, and in the camera module (800) or lens assembly (LA) of FIG. 17, the second lens (L2) may have negative refractive power. As will be described later, the lens having negative refractive power arranged between the first lens (L1) and the n-th lens (e.g., the fourth lens (L4)) may have a dispersion value within a specified range, thereby facilitating chromatic aberration correction or refractive power arrangement of the lenses (L1, L2, L3, and L4). In one embodiment, when a plurality of lenses having negative refractive power are arranged between the first lens (L1) and the n-th lens, the lens having negative refractive power that is arranged closest to the n-th lens can be configured to satisfy the conditions described below regarding dispersion values.

[0122] According to one embodiment, at least one of the lenses (L1, L2, L3, L4) of the lens assembly (LA) can perform an auto-focus function by reciprocating along a first linear movement direction (LM1). The term "first linear movement direction (LM1)" may refer to, for example, a direction substantially parallel to or substantially coincident with the optical axis (O). In one embodiment, at least one of the lenses (L1, L2, L3, L4) of the lens assembly (LA) can perform an image stabilization function by horizontally moving (e.g., vibrating) along at least two directions (e.g., a second linear movement direction (LM2)) in a plane intersecting the optical axis (O). The term "plane intersecting the optical axis (O)" may refer to a plane substantially perpendicular to the optical axis (O). In one embodiment, the auto-focus function and / or the image stabilization function can be performed by reciprocating substantially the entire lens assembly (LA).

[0123] According to one embodiment, the auto-focus function and / or the image stabilization function may be implemented by the reciprocating movement of the image sensor (I). For example, the image sensor (I) may perform the auto-focus function by reciprocating along the third linear movement direction (LM3), and may perform the image stabilization function by horizontally moving (e.g., vibrating) along at least two directions (e.g., the fourth linear movement direction LM4) in a plane intersecting the second optical axis (OS). Here, the 'second optical axis (OS)' may refer to a path along which light incident along the optical axes (O) of the lenses (L1, L2, L3, L4) is reflected by the reflective surface (RS) and reaches the image sensor (I), and the third linear movement direction (LM3) may be substantially parallel to or substantially coincident with the second optical axis (OS). Although there may be differences depending on the angle of the reflection surface (RS) with respect to the incident surface (IS), in a structure in which the incident surface (IS) and the reflection surface (RS) are arranged to form a substantially 45-degree angle, the second optical axis (OS) can be arranged substantially perpendicular to the optical axes (O) of the lenses (L1, L2, L3, L4).

[0124] According to one embodiment, the image stabilization function and / or the subject tracking function may be implemented by a movement, rotation and / or tilt operation of the optical member (601). For example, the image stabilization function and / or the subject tracking function may be implemented by horizontally moving (e.g., vibrating) the optical member (601) in a designated plane (e.g., a plane substantially parallel to the imaging plane (img) of the image sensor (I)), or performing a rotation and / or tilt operation (RM) around a designated point (or rotation axis (RA)). In one embodiment, the rotation and / or tilt operation (RM) of the optical member (601) may be understood as an operation that changes the orientation or inclination angle of the incident surface (IS), the reflective surface (RS) and / or the exit surface (ES) with respect to the image sensor (I) (e.g., the imaging plane (img)).

[0125] According to one embodiment, the optical member (601) may include an incident surface (IS) arranged to at least partially face the lens assembly (LA), an exit surface (ES) arranged to at least partially face the image sensor (I), and / or a reflective surface (RS) arranged to be inclined with respect to the incident surface (IS) or the exit surface (ES). For example, light focused by the lens assembly (LA) (e.g., incident light (IL) of FIG. 7) may be incident on the optical member (601) through the incident surface (IS), and light incident on the interior of the optical member (601) may be reflected at least once by the reflective surface (RS) (e.g., light (RL1) traveling in the second direction (D2) of FIG. 6 or 7) and then provided to the image sensor (I) through the exit surface (ES). Although not shown, an optical path similar to that of FIG. 6 or FIG. 7 can be implemented by placing an additional reflective member (e.g., a mirror or prism) between the optical member (601) and the image sensor (I) within a range that satisfies the condition(s) described below.

[0126] According to one embodiment, the optical member (601) may be implemented by a combination of a first optical member (611) and a second optical member (613). However, it should be noted that this is only for convenience of explanation and that the optical member (601) is partially separated and mentioned, and the embodiment of the present disclosure is not limited thereto. For example, the first optical member (611) and the second optical member (613) may be implemented as one body (1-piece, or single body), and a portion provided with a reflective surface (RS) may be defined as a first optical member (611) having a triangular prism shape. In one embodiment, a light-blocking member (e.g., a light-blocking member (915; 915a, 915b) of FIG. 21 or 22) described below may be disposed on at least a portion of a surface of the optical member (601) (e.g., an area that does not interfere with light reaching the image sensor (I)). In one embodiment, when the first optical member (611) and the second optical member (613) are structured to be coupled to face each other, at least a portion of the boundary region between the first optical member (611) and the second optical member (613) may be provided as a region for arranging the light-blocking members (915a, 915b). For example, in a structure in which the first optical member (611) and the second optical member (613) are combined, the arranging of the light-blocking members (915a, 915b) may be made easier, thereby suppressing or substantially preventing stray light or flare phenomena.

[0127] According to one embodiment, the first optical member (611) (and / or the second optical member (613)) may provide an incident surface (IS) and / or a reflective surface (RS), and an exit surface (ES) may be provided on the second optical member (613). In one embodiment, the incident surface (IS) or the exit surface (ES) may be implemented as a generally polygonal shape (e.g., a rectangle). However, the embodiment(s) of the present disclosure are not limited thereto, and the incident surface (IS) or the exit surface (ES) may be implemented as a circle or an ellipse. In one embodiment, an edge formed by two different surfaces of the first optical member (611) (and / or the second optical member (613)) contacting each other may be processed into a curved or inclined shape. For example, in a structure where two different surfaces of the first optical member (611) are arranged to form acute, obtuse, and / or right angles, by processing the corners into curved or inclined surfaces, damage or breakage of the first optical member (611) can be suppressed even when it interferes with another structure or is exposed to impact. Such curved or inclined surface processing can be similarly performed on the second optical member (613).

[0128] According to one embodiment, the curved or inclined surface processing of the edge portion of the optical member (601) (e.g., the first optical member (611) and / or the second optical member (613)) may be one of the causes of stray light or flare phenomena. In one embodiment, the optical member (601) may facilitate the implementation of a light-shielding structure (e.g., the light-shielding members (915a, 915b) of FIG. 21 or 22) by satisfying at least some of the conditions described below. In one embodiment, the optical member (601) may include a light-shielding member (915a, 915b) provided on at least a portion of the outer surface, in a region other than a region through which external light (e.g., light focused by the lens assembly (LA)) is transmitted among the incident surface (IS), and / or in a region other than a region through which light to be guided to the image sensor (IS) is transmitted among the exit surface (ES). The light-shielding members (915a, 915b) can, for example, absorb light that travels along an undesigned path or substantially block it from entering the image sensor (I). These light-shielding members (915a, 915b) can be implemented in the form of a layer formed by fixation such as printing, painting, coating, deposition, and / or plating, or an attachment such as a film or sheet. In this way, the optical member (601) can suppress stray light or flare phenomena by including a curved (or inclined) edge portion by including the light-shielding members (915a, 915b).

[0129] According to one embodiment, the camera module (600) and / or its optical system may further include an infrared cut filter (F). The infrared cut filter (F) may suppress or block, for example, light of a wavelength (e.g., infrared) that is not visible to the naked eye of a user but is detected by a photosensitive material or the image sensor (I) from entering the image sensor (I). The infrared cut filter (F) may be disposed between the fourth lens (L4) and the image sensor (I) or between the optical member (601) and the image sensor (I). Depending on the intended use of the camera module (600) (e.g., a depth camera), the infrared cut filter (F) may be replaced with a bandpass filter that transmits infrared and suppresses or blocks visible light.

[0130] According to one embodiment, the camera module (600) and / or its optical system may satisfy the conditions presented by the following [Mathematical Formula 1].

[0131]

[0132] Here, 'TL' may be the distance from the apex of the object-side surface (S2) of the first lens (L1), which is the farthest lens from the optical member (601) and / or the image sensor (I), to the apex of the image-side surface (S9) of the lens closest to the optical member (601), for example, the fourth lens (L4) as the n-th lens. The 'apex' of the object-side surface or image-side surface of the lenses (L1, L2, L3, L4)(s) may refer to the point where the optical axis (O) intersects the lens surface. For example, 'TL' in [Mathematical Formula 1] may refer to the distance from the object-side surface (S2) of the first lens (L1) to the image-side surface (S9) of the fourth lens (L4), which is the distance measured from the optical axis (O). In [Mathematical Formula 1], 'OTTL' may refer to the distance that light incident along the optical axis (O) travels from the object-side surface (S2) of the first lens (L1) to the image sensor (I). For example, 'OTTL' may be the sum of a first distance (OTTL1) measured from the vertex of the object-side surface (S2) of the first lens (L1) to the reflective surface (RS) along the optical axis (O), and a second distance (OTTL2) from a point (RP) where the reflective surface (RS) intersects the optical axis (O) to the image sensor (I). In one embodiment, the second distance (OTTL2) may be the distance from the reflective surface (RS) to the image sensor (I) along the second optical axis (OS).

[0133] According to one embodiment, when the condition of [Mathematical Formula 1] is satisfied, the camera module (600) and / or its optical system can be easily mounted on an electronic device having a thickness of approximately 10 mm or less while providing telephoto performance. In one embodiment, when the value calculated by [Mathematical Formula 1] is less than 0.1, it may be difficult to secure good image quality in telephoto mode, and when it is greater than 0.6, it may be difficult to mount the camera module (600) and / or its optical system on an electronic device having a thickness smaller than a specified specification (e.g., less than approximately 10 mm). For example, [Mathematical Formula 1] may suggest a condition for miniaturizing the camera module (600) and / or its optical system while providing telephoto performance. In one embodiment, in the camera module (600) and / or its optical system, the value calculated by [Mathematical Formula 1] may be approximately 0.15 or more and approximately 0.25 or less.

[0134] According to one embodiment, the camera module (600) and / or its optical system may satisfy the conditions presented by the following [Mathematical Formula 2].

[0135]

[0136] Here, 'Pin' may be the maximum length of a surface (e.g., incident surface (IS)) onto which light focused by the lenses (L1, L2, L3, L4) in the optical member (601) is incident. For example, when the incident surface (IS) is rectangular, 'Pin' may be the length of the long side of the incident surface. In one embodiment, when the incident surface (IS) is elliptical, 'Pin' may be the length of the major axis of the incident surface (IS). In one embodiment, 'Pin' may be the length of the incident surface (IS) measured substantially parallel to a direction in which the second distance (OTTL2) is measured (e.g., the second optical axis (OS)). For example, when the incident surface (IS) of the optical member (601) is rectangular, the major side may be arranged substantially parallel to the second optical axis (OS), or when the incident surface (I) is elliptical, the major axis may be arranged substantially parallel to the second optical axis (OS). In [Mathematical Formula 2], 'Pout' is the maximum length of a surface (e.g., an exit surface (ES)) of the optical member (601) arranged to face the image sensor (I), and may be a length measured substantially parallel to a direction in which the first distance (OTTL1) is measured. In one embodiment, when the optical member (601) includes a first outer surface (615) parallel to the incident surface (IS), 'Pout' may be understood as a gap between the incident surface (IS) and the first outer surface (615). In one embodiment, in the camera module (600) and / or its optical system, the value calculated by [Mathematical Formula 2] may be approximately 1.3 or more and approximately 2.5 or less.

[0137] According to one embodiment, the shape of the optical member (601) may not be limited to the illustrated embodiment. For example, a part of the optical member (601) other than the region where light to be guided to the image sensor (I) passes through the optical member (601) of FIG. 8 or 9 may be removed, or a third or fourth optical member (not illustrated) may be further disposed on the surface of the optical member (601) not illustrated. When the shape of the optical member (601) is manufactured differently from the shape illustrated in FIG. 8 or 9, 'Pin' in [Mathematical Formula 2] may be understood as the maximum length of the optical member (601) measured in a plane perpendicular to the optical axis (O) or the maximum length of the optical member (601) measured along a direction parallel to the second optical axis (OS). In one embodiment, 'Pin' may be understood as the maximum length of the optical member (601) measured along the direction in which light passing perpendicularly through the exit surface (ES) travels, or the maximum length of the optical member (601) measured along the direction perpendicular to the imaging plane (img) of the image sensor (I). In one embodiment, 'Pin' may be understood as the maximum length of the optical member (601) measured parallel to the second distance (OTTL2) measurement direction. In one embodiment, when the shape of the optical member (601) is manufactured differently from the shape illustrated in FIG. 8 or 9, 'Pout' of [Mathematical Formula 2] may be understood as the maximum length of the optical member (601) measured in a plane perpendicular to the second optical axis (OS) or the maximum length of the optical member (601) measured along the direction parallel to the optical axis (OS). In one embodiment, 'Pout' may be understood as the maximum length of the optical member (601) measured along the direction in which light transmitted perpendicularly through the incident surface (IS) propagates toward the reflective surface (RS) or the maximum length of the optical member (601) measured along the direction parallel to the imaging plane (img) of the image sensor (I). In one embodiment, 'Pout' may be understood as the maximum length of the optical member (601) measured parallel to the first distance (OTTL1) measurement direction.

[0138] In one embodiment, the camera module (600) and / or its optical system can provide an environment that facilitates the arrangement of the light blocking members (915a, 915b) in a miniaturized structure by satisfying the conditions presented through [Mathematical Formula 2]. For example, when the calculated value of [Mathematical Formula 2] is greater than 10, the size of the incident surface (IS) or the second distance (OTTL2) described above may increase, making it difficult to miniaturize the camera module (600) and / or its optical system. In one embodiment, when the calculated value of [Mathematical Formula 2] is less than 1.25, most of the area of ​​the incident surface (IS) and / or the exit surface (ES) of the optical member (601) may be utilized as an optical path. For example, when the calculated value of [Mathematical Formula 2] is less than 1.25, the arrangement of the light blocking members (915a, 915b) may be difficult. In this way, when the condition of [Mathematical Formula 2] is satisfied, the camera module (600) and / or its optical system can be miniaturized and effectively suppress stray light while including the optical member (601). As will be described with reference to FIGS. 21 and 22, when light reflected or refracted at least once inside the optical member (601) travels along a non-designed path, the light blocking members (915a, 915b) arranged on the optical member (601) can absorb or substantially block the light traveling toward the image sensor (I) along the non-designed path.

[0139] According to one embodiment, the camera module (600) and / or its optical system may satisfy the conditions presented by the following [Mathematical Formula 3].

[0140]

[0141] Here, 'Vd1' refers to the dispersion value of the lens positioned farthest from the optical member (601), for example, the first lens (L1), and by satisfying the condition of [Mathematical Formula 3], the camera module (600), its optical system and / or the first lens (L1) can be easily manufactured and chromatic aberration can be easily corrected. For example, when the dispersion value, Vd1, of the first lens (L1) is less than 50, it may be difficult to secure good optical performance, and when it is greater than 95, the first lens (L1) may become softened, making it difficult to manufacture in a designed shape and vulnerable to deformation. In one embodiment, the dispersion value, for example, the Abbe number, of the first lens (L1) in the camera module (600) and / or its optical system may be approximately 60 or less.

[0142] According to one embodiment, the camera module (600) and / or its optical system may satisfy the conditions presented by the following [Mathematical Formula 4].

[0143]

[0144] Here, 'Vdneg' may refer to a dispersion value of a lens having negative refractive power among the lenses arranged between the first lens (L1) and the nth lens (e.g., the fourth lens (L4) of FIG. 8 or 9). In one embodiment, when there are multiple lenses having negative refractive power arranged between the first lens (L1) and the fourth lens (L4), the dispersion value of at least one lens arranged closest to the fourth lens (L4) among the multiple lenses having negative refractive power may satisfy the condition of [Mathematical Formula 4]. In one embodiment, [Mathematical Formula 4] may present a condition that facilitates the arrangement and design of the lenses (L1, L2, L3, L4) while implementing good optical performance. For example, when the lens with negative refractive power arranged closest to the fourth lens (L4) satisfies the condition of [Mathematical Formula 4], chromatic aberration correction may be facilitated and the arrangement of refractive power may be facilitated in the camera module (600) and / or its optical system. In one embodiment, the second lens (L2) of the embodiment of FIG. 9 or FIG. 13 may satisfy the condition of [Mathematical Formula 4], and the third lens (L3) of the embodiment of FIG. 17 may satisfy the condition of [Mathematical Formula 4]. In one embodiment, in the camera module (600) and / or its optical system, the dispersion value of the lens that satisfies the condition of [Mathematical Formula 4], for example, the Abbe number, may be approximately 25 or more and approximately 40 or less.

[0145] According to one embodiment, the camera module (600) and / or its optical system may satisfy the conditions presented by the following [Mathematical Formula 5].

[0146]

[0147] [Mathematical Formula 5] presents a condition for miniaturizing the camera module (600) and / or its optical system while implementing, for example, telephoto performance, and 'FOV' may refer to the angle of view of the camera module (600) and / or its optical system. For example, when the angle of view of the camera module (600) and / or its optical system is smaller than 5 degrees, the focal length increases, making it difficult to miniaturize the camera module (600) or its optical system, and when it is larger than 35 degrees, the focal length decreases, making it difficult to secure a second distance (OTTL2) that can satisfy the condition of [Mathematical Formula 1]. In one embodiment, the angle of view of the camera module (600) and / or its optical system may be approximately 20 degrees or more and approximately 30 degrees or less.

[0148] According to one embodiment, the camera module (600) and / or its optical system may satisfy the conditions presented by the following [Mathematical Formula 6] and [Mathematical Formula 7].

[0149]

[0150]

[0151] Here, 'nd1' may refer to the refractive index of the first lens (L1) arranged furthest from the optical member (601) and / or the image sensor (I), and 'ndn' may refer to the refractive index of the nth lens (e.g., the fourth lens (L4) of FIGS. 8 and / or 9) arranged closest to the optical member (601) and / or the image sensor (I). In one embodiment, when the first lens (L1) has a refractive index greater than 1.6, if it is made of plastic, the dispersion value may be lowered to less than 35, which may make it difficult to correct chromatic aberration. In one embodiment, when the refractive index of the first lens (L1) is lower than 1.45, the refractive power of the first lens (L1) is lowered, which may make it difficult to secure a focal length that meets the design specifications in the camera module (600) and / or its optical system. In one embodiment, when the lens (e.g., the fourth lens (L4) positioned as the nth lens) positioned closest to the optical member (601) or the image sensor (I) has a refractive index greater than 1.7, the degree of design freedom in selecting the material of the lens may be reduced, and when the lens has a refractive index less than 1.6, there may be difficulty in controlling optical performance such as field curvature or astigmatism.

[0152] The camera module of the embodiment described above or described below (e.g., the camera module (600, 700, 800, 900) of FIG. 9, FIG. 13 and / or FIG. 17) and / or its optical system can satisfy the conditions presented in the above-described [Mathematical Formula 1-5] as shown in the following [Table 1], and it can be confirmed that the conditions presented in [Mathematical Formula 6-7] are satisfied through the [Tables] regarding lens data described below.

[0153] Mathematical Formula 1 Mathematical Formula 2 Mathematical Formula 3 Mathematical Formula 4 Mathematical Formula 5 Example of Fig. 9 0.21 1.55 6.14 25.93 21.38 Example of Fig. 13 0.20 1.55 6.14 25.93 21.39 Example of Fig. 17 0.24 2.35 6.09 37.4 25.78

[0154] In the above-described embodiment, although some of the reference numbers assigned to the lens surfaces of FIG. 9 are not directly mentioned, those skilled in the art will be able to easily understand the configuration of each lens (L1, L2, L3, L4) based on the lens data presented through the [Tables] described below. Although omitted in FIG. 9, which illustrates the layout of the lenses (L1, L2, L3, L4), the lens surfaces 'S1', 'S10' and / or 'S11' described in [Table 2] described below may be reference positions referenced in the design and arrangement of the lenses (L1, L2, L3, L4). According to one embodiment, in [Table 2] described below, 'S12' may refer to the incident surface (IS) of the optical member (601), 'S13' may refer to the reflection surface (RS) of the optical member (601), and 'S14' may refer to the boundary surface between the first optical member (611) and the second optical member (613) among the optical members (601). In one embodiment, the exit surface (ES) of the optical member (601) may be exemplified by 'S15' of [Table 2]. In the embodiment described below, the reference number 'SX' (wherein, X is a natural number) for the surfaces of the lenses (L1, L2, L3, L4) or the surface of the optical member (601) may be assigned differently from that mentioned in the present embodiment, and when the lens surface is an aspherical surface, the symbol '*' may be indicated in the reference number of the lens surface. In the camera modules (600, 700, 800, 900) of FIGS. 8 and 9 and / or FIGS. 13 and 17 described below, 'obj' may be an example of a subject or object positioned in the direction that the camera module (600, 700, 800, 900) is directed. In one embodiment, 'obj' of FIGS. 8 and 9 and / or FIGS. 13 and 17 described below may be understood as a subject of an image that a user wishes to acquire using the camera module (600, 700, 800, 900). In examining various embodiments hereinbelow, for the sake of brevity of the drawings, reference numbers for some of the object-side surface(s) and the sensor-side surface(s) of the lenses (L1, L2, L3, L4) may be omitted.Reference numbers for lens surfaces omitted in the drawings may be applied to the configuration of the above-described embodiment, and can be easily understood through the [tables] described below regarding lens data of each embodiment.

[0155] According to one embodiment, the camera module (600) (and / or its optical system) of FIGS. 8 and / or 9 may have a focal length of approximately 11.95 mm, an F-number of approximately 3.145, and / or an angle of view of approximately 21.38 degrees. In one embodiment, the camera module (600) and / or its optical system may have a maximum image height of approximately 2.6 mm, while the OTTL of [Mathematical Formula 1] may be approximately 12.843 mm. In one embodiment, the camera module (600) and / or its optical system may satisfy at least some of the conditions presented through [Mathematical Formulas], such as the shape and refractive power of the above-described lenses (L1, L2, L3, L4) (e.g., lens surfaces)(s), the shape of the optical members (601; 611, 613), and / or the specifications, and may be manufactured with the specifications exemplified in the following [Table 2].

[0156] Lens surface (Surf) Radius of curvature (Radius) Thickness (Thick) Effective focal length (EFL) Refractive index (nd) Dispersion value (vd) ObjinfinityinfinityS1infinity0.00000S2*6.956410.630407.5441.5441056.14S3*-9.792090.03000S4*2.593570.500239.9661.5441056.14S5*4.614840.36468S6*-4.953250.42424-2.7781.6146525.93S7*2.728630.31377S8*3.106910.400726.577 1.6503521.52S9*10.476040.60000S10infinity0.00000S11infinity0.00000S12infinity1.47000infinity1.5688356.04S13infinity1.47000infinity1.56 88356.04S14infinity1.47000infinity1.5688356.04S15infinity4.28778S16infinity0.21infinity1.5168064.17S17infinity0.67383imginfinity-0.0024

[0157] [Table 3] and [Table 4] below list the aspherical coefficients of lenses (L1, L2, L3, L4), and the definition of aspherical can be calculated using the following [Mathematical Formula 8].

[0158]

[0159] In [Mathematical Formula 8], "x" is the distance in the direction of the optical axis (O) from the point where the optical axis (O) passes on the lens surface, "y" is the distance from the optical axis (O) in the vertical direction from the optical axis (O), 'R' represents the radius of curvature at the vertex of the lens, 'k' represents the conic constant, and 'Ai' represents the aspherical coefficient, which can be written as 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', and 'J' in the [Table] described below. The radius of curvature can be, for example, the reciprocal of the curvature, which is a value indicating the degree of curvature at each point of a curved surface or curve.

[0160] Lens surface (Surf) 2_ASP3_ASP4_ASP5_ASP Radius of curvature (Radius) 6.956E+00-9.792E+002.594E+004.615E+00k(Conic)-3.453E+017.015E+00-1.040E+001.129E+00A(4th) / C41.816E -03-2.539E-021.425E-026.232E-02B(6th) / C5-3.431E-033.222E-03-1.220E-02 -1.948E-02C(8th) / C62.199E-031.296E-02-9.694E-03-6.493E-02D(10th) / C7-2. 254E-03-1.320E-021.864E-029.002E-02E(12th) / C81.460E-036.871E-03-1.150 E-02-6.008E-02F(14th) / C9-5.424E-04-2.186E-033.443E-032.355E-02G(16th) / C101.170E-044.284E-04-4.463E-04-5.450E-03H(18th) / C11-1.355E-05-4.743E -05-3.423E-076.822E-04J(20th) / C126.567E-072.281E-063.798E-06-3.502E-05

[0161] Lens surface (Surf) 6_ASP7_ASP8_ASP9_ASP Radius of curvature (Radius) -4.953E+002.729E+003.107E+001.048E+01k(Conic)-3.252E+011.384E+00-1.636E+001.999E+01A(4th) / C43.144E -02-5.898E-02-5.367E-02-6.222E-04B(6th) / C56.870E-021.195E-012.040E-03 -4.230E-02C(8th) / C6-1.408E-01-6.520E-021.960E-011.826E-01D(10th) / C71.3 57E-01-1.365E-01-4.642E-01-3.707E-01E(12th) / C8-7.785E-022.901E-015.57 5E-014.408E-01F(14th) / C92.756E-02-2.436E-01-3.876E-01-3.175E-01G(16th) / C10-5.855E-031.079E-011.574E-011.363E-01H(18th) / C116.745E-04-2.488E-02-3.472E-02-3.212E-02J(20th) / C12-3.145E-052.354E-033.212E-033.196E-03

[0162] FIG. 13 is a diagram showing an optical system and / or a camera module (700) including the same (e.g., the camera assembly (307) of FIG. 5, the camera modules (500, 600) of FIGS. 6 to 9) according to one embodiment of the present disclosure. FIG. 14 is a graph showing spherical aberration of the optical system of FIG. 13 and / or the camera module (700) including the same, according to one embodiment of the present disclosure. FIG. 15 is a graph showing astigmatism of the optical system of FIG. 13 and / or the camera module (700) including the same, according to one embodiment of the present disclosure. FIG. 16 is a graph showing a distortion rate of the optical system of FIG. 13 and / or the camera module (700) including the same, according to one embodiment of the present disclosure.

[0163] According to one embodiment, the camera module (700) (and / or its optical system) of FIG. 13 may have a focal length of approximately 11.95 mm, an F-number of approximately 3.196, and / or an angle of view of approximately 21.39 degrees. In one embodiment, the camera module (700) and / or its optical system may have a maximum image height of approximately 2.6 mm, while the OTTL of [Mathematical Formula 1] may be approximately 13.047 mm. In one embodiment, the camera module (700) and / or its optical system may satisfy at least some of the conditions presented through [Mathematical Formulas], such as the shape and refractive power of the above-described lenses (L1, L2, L3, L4) (e.g., lens surfaces)(s), the shape of the optical members (701; 711, 713), and / or the specifications, and may be manufactured with the specifications exemplified in the following [Table 5]. In one embodiment, the lenses (L1, L2, L3, L4) may have aspheric coefficients of [Table 6] and [Table 7].

[0164] Lens surface (Surf) Radius of curvature (Radius) Thickness (Thick) Effective focal length (EFL) Refractive index (nd) Dispersion value (vd) ObjinfinityinfinityS1infinity0.00000S2*37.593900.568007.9161.5441056.14S3*-4.861730.03000S4*2.384470.5562110.4861.5441056.14S5*3.747470.36295S6*-5.314740.36570-3.1961.6146525.93S7*3.244600.33704S8*5.845020.356918.287 1.6503521.52S9*-78.307750.60000S10infinity0.00000S11infinity0.00000S12infinity1.47000infinity1.5688356.04S13infinity1.47000infinity1.56 88356.04S14infinity1.47000infinity1.5688356.04S15infinity3.14229S16infinity0.21infinity1.5168064.17S17infinity2.11021imginfinity-0.00242

[0165] 렌즈면(Surf)2_ASP3_ASP4_ASP5_ASP곡률반경(Radius)3.759E+01-4.862E+002.384E+003.747E+00k(Conic)-8.882E+01-1.829E+01-7.960E-011.145E+00A(4th) / C4-2.158E-02-2.416E-025.851E-021.132E-01B(6th) / C52.685E-02-1.702E-03-7.208E-02-1.189E-01C(8th) / C6-2.565E-021.196E-023.432E-025.771E-03D(10th) / C71.439E-02-1.029E-02-1.503E-024.880E-02E(12th) / C8-5.069E-035.353E-031.123E-02-2.910E-02F(14th) / C91.172E-03-1.783E-03-6.256E-034.510E-03G(16th) / C10-1.698E-043.747E-041.893E-031.469E-03H(18th) / C111.371E-05-4.512E-05-2.834E-04-6.212E-04J(20th) / C12-4.540E-072.374E-061.614E-056.312E-05

[0166] Lens surface (Surf) 6_ASP7_ASP8_ASP9_ASP Radius of curvature (Radius) -5.315E+003.245E+005.845E+00-7.831E+01k(Conic)-6.135E+011.988E+00-1.488E+019.178E+01A(4th) / C41.63 5E-02-1.203E-01-1.095E-01-3.107E-02B(6th) / C58.766E-022.615E-019.260E- 024.832E-04C(8th) / C6-1.262E-01-2.461E-011.185E-011.446E-01D(10th) / C79. 419E-021.646E-01-3.423E-01-3.031E-01E(12th) / C8-4.287E-02-1.220E-013.6 60E-013.302E-01F(14th) / C91.157E-029.131E-02-2.174E-01-2.151E-01G(16th) / C10-1.598E-03-4.545E-027.560E-028.480E-02H(18th) / C116.145E-051.207E-02-1.452E-02-1.881E-02J(20th) / C124.787E-06-1.296E-031.189E-031.804E-03

[0167] FIG. 17 is a diagram showing an optical system and / or a camera module (800) including the same (e.g., the camera assembly (307) of FIG. 5, the camera modules (500, 600) of FIGS. 6 to 9) according to one embodiment of the present disclosure. FIG. 18 is a graph showing spherical aberration of the optical system of FIG. 17 and / or the camera module (800) including the same, according to one embodiment of the present disclosure. FIG. 19 is a graph showing astigmatism of the optical system of FIG. 17 and / or the camera module (800) including the same, according to one embodiment of the present disclosure. FIG. 20 is a graph showing a distortion rate of the optical system of FIG. 17 and / or the camera module (800) including the same, according to one embodiment of the present disclosure.

[0168] In one embodiment, the camera module (800) (and / or its optical system) of FIG. 17 may have a focal length of approximately 9.73 mm, an F-number of approximately 3.475, and / or an angle of view of approximately 25.78 degrees. In one embodiment, the camera module (800) and / or its optical system may have a maximum image height of approximately 2.5 mm, while the OTTL of [Mathematical Formula 1] may be approximately 10.658 mm. In the camera module (800) (and / or its optical system) of FIG. 17, the image sensor-side surface (S9) of the fourth lens (L4) may function as, for example, an aperture stop. In one embodiment, the camera module (800) and / or its optical system may satisfy at least some of the conditions presented through [mathematical formulas], such as the shape and refractive power of the above-described lenses (L1, L2, L3, L4) (e.g., lens surfaces), the shape of the optical members (801; 811, 813), and / or the specifications, and may be manufactured with the specifications exemplified in [Table 8] below. In one embodiment, the lenses (L1, L2, L3, L4) may have aspherical coefficients of [Table 9] and [Table 10].

[0169] Lens surface (Surf) Radius of curvature (Radius) Thickness (Thick) Effective focal length (EFL) Refractive index (nd) Dispersion value (vd) ObjinfinityinfinityS1infinity0.00000S2*2.892451.021762.3531.5441056.09S3*-2.025930.19824S4*-3.116100.35000-2.0551.5671737.4S5*1.957340.30000S6*-89.715090.3500028.7641.6155425.8S7*-14.921580.03000S8*10.004860.3 500069.1461.6607420.38S9*12.590480.50000S10infinity0.00000S11infinity1.50000infinity1.5168064.17S12infinity1.50000infinity1.5168064. 17S13infinity4.00000infinity1.5168064.17S14infinity0.50000S15infinity0.21000infinity1.5168064.17S16infinity0.70266imginfinity-0.0004

[0170] 렌즈면(Surf)2_ASP3_ASP4_ASP5_ASP곡률반경(Radius)2.892E+00-2.026E+00-3.116E+001.957E+00k(Conic)-5.157E-02-2.660E+01-9.900E+01-1.318E+01A(4th) / C4-4.461E-03-5.682E-022.163E-015.801E-01B(6th) / C5-1.278E-044.511E-02-1.197E+00-2.162E+00C(8th) / C6-7.994E-034.753E-023.205E+003.993E+00D(10th) / C71.859E-02-7.519E-02-4.968E+00-3.622E+00E(12th) / C8-1.632E-023.066E-024.938E+00-4.530E-01F(14th) / C97.486E-039.616E-03-3.199E+004.904E+00G(16th) / C10-1.460E-03-1.198E-021.310E+00-5.211E+00H(18th) / C11-4.054E-053.394E-03-3.089E-012.430E+00J(20th) / C124.219E-05-2.422E-043.211E-02-4.377E-01

[0171] Lens surface (Surf) 6_ASP7_ASP8_ASP9_ASP Radius of curvature (Radius) -8.972E+01-1.492E+011.000E+011.259E+01k(Conic) 9.900E+01-9.900E+016.981E+016.457E+01A(4th) / C41.355E -01-8.053E-01-8.610E-01-7.669E-02B(6th) / C51.886E-015.918E+005.355E+00 2.415E-01C(8th) / C6-3.062E+00-2.302E+01-1.941E+01-3.740E-01D(10th) / C77. 409E+005.356E+014.488E+014.500E-01E(12th) / C8-8.978E+00-7.894E+01-6.71 7E+01-5.914E-01F(14th) / C96.680E+007.561E+016.507E+017.092E-01G(16th) / C 10-3.316E+00-4.612E+01-3.962E+01-5.859E-01H(18th) / C111.064E+001.637E+0 11.384E+012.754E-01J(20th) / C12-1.664E-01-2.579E+00-2.122E+00-5.491E-02

[0172] FIG. 21 is a drawing illustrating a camera module (900) according to one embodiment of the present disclosure (e.g., the camera assembly (307) of FIG. 5, the camera modules (500, 600, 700, 800) of FIGS. 6 to 9, FIG. 13, and / or FIG. 17). FIG. 22 is a drawing illustrating a configuration in which stray light is blocked in the camera module (900) of FIG. 21 according to one embodiment of the present disclosure.

[0173] Referring to FIGS. 21 and 22, when light incident from the outside onto the camera module (900) is reflected or refracted by the lens assembly (LA; L1, L2, L3, L4) and / or the optical member (901; 911, 913), stray light (SL1, SL2) or flare phenomena may occur. In a structure in which the number of reflections or refractions in the optical member (901) increases, and / or when the corners of the optical member (901) have a curved or inclined shape, stray light or flare phenomena may occur frequently. In the design and arrangement of the lens assembly (LA) and / or the optical member (901), it may be virtually impossible to predict both the direction in which external light is incident onto the camera module (900), the direction of reflection, and / or the direction of refraction within the optical member (901). For example, when implementing an optical system combining multiple lenses (L1, L2, L3, L4) and an optical member (901), the occurrence of stray light (SL1, SL2) or flare phenomena may be unavoidable. In the detailed description of the embodiments of FIGS. 21 and 22, the electronic devices (101, 200, 300, 400) of FIGS. 1 to 7 and / or the camera module (600) of FIGS. 8 and 9 may be referred to together.

[0174] According to one embodiment of the present disclosure, the camera module (900) and / or its optical system can suppress stray light (SL1, SL2) from reaching the image sensor (I) by including a light-blocking member (915; 915a, 915b). For example, the light-blocking member (915) (e.g., the first light-blocking member (915a)) may be provided on at least a portion of an area other than an area through which light focused by the lenses (L1, L2, L3, L4)(s) is transmitted on an incident surface (e.g., the incident surface IS) of the optical member (901). For example, the first light-blocking member (915a) may be provided on at least a portion of a periphery of an area facing the lenses (L1, L2, L3, L4)(s) among the incident surfaces (IS) or an edge of the incident surface. The light-shielding members (915a, 915b) may be implemented by, for example, a layer formed through a process such as printing, painting, coating, deposition, and / or plating, and / or an attachment such as a film or sheet. In one embodiment, the light-shielding member (915) (e.g., the second light-shielding member (915b)) may be provided on at least a portion of the remaining area excluding the area through which light to be guided to the image sensor (I) is transmitted on the exit surface (e.g., the exit surface (ES) of FIG. 8) of the optical member (901). For example, the second light-shielding member (915b) may be provided on at least a portion of an area corresponding to the image sensor (I) among the exit surfaces (ES) or an edge of the exit surface (ES). In one embodiment, the light-blocking members (915a, 915b) may be provided on substantially the entire outer surface of the optical member (901), except for the area through which light incident through the lenses (L1, L2, L3, L4) or the area through which light guided to the image sensor (I) is transmitted. In one embodiment, when the optical member (901) has a structure that combines the first optical member (911) and the second optical member (913), the light-blocking members (915a, 915b) may be further provided at the boundary between the first optical member (911) and the second optical member (913).

[0175] In one embodiment, the stray light (SL1, SL2) may be substantially absorbed by the shading member (915a, 915b) or may be prevented from further propagating in the current propagation direction when it reaches the shading member (915a, 915b). In one embodiment, when the shading member (915a, 915b) is provided on the exit surface (ES), the stray light (SL1, SL2) propagating toward the image sensor (I) may be substantially absorbed or blocked by the shading member (915a, 915b). For example, by suppressing the stray light from entering the image sensor, the camera module (900) and / or its optical system according to the embodiment(s) of the present disclosure may suppress the deterioration of the quality of the captured image.

[0176]

[0177] In this way, the camera module (e.g., the camera assembly (307) of FIG. 5, the camera modules (500, 600, 700, 800, 900) of FIGS. 6 to 9, FIG. 13, FIG. 17, FIG. 21 and / or FIG. 22), the optical system and / or the electronic device including the same (e.g., the electronic device (101, 200, 300, 400) of FIGS. 1 to 6) according to the embodiment(s) of the present disclosure can be easily miniaturized while providing good telephoto performance. In one embodiment, when at least some of the above-described condition(s) are satisfied, the camera module, the optical system and / or the electronic device including the same can suppress degradation of image quality due to stray light (e.g., the stray light (SL1, SL2) of FIG. 21 or 22). For example, the arrangement of a light-blocking member (e.g., a light-blocking member (915a, 915b) of FIG. 21 or FIG. 22) can be easily accomplished to suppress or substantially block light from an undesigned path from reaching the image sensor.

[0178] 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).

[0179] According to one embodiment of the present disclosure, a camera module (e.g., a camera assembly (307) of FIG. 5, a camera module (500, 600, 700, 800, 900) of FIGS. 6 to 9, 13, 17, 21 and / or 22) may include at least two lenses (e.g., lenses L1, L2, L3, L4 of FIG. 8 or 9) aligned along an optical axis (e.g., an optical axis O of FIG. 8 or 9), an optical member (e.g., an optical member (601) of FIG. 8 or 9) including a reflective surface (e.g., a reflective surface RS of FIG. 8) that reflects light focused by the lenses at least once, and an image sensor (e.g., an image sensor (I) of FIG. 9 or 9) arranged to detect light reflected by the reflective surface. In one embodiment, the camera module and / or its optical system may satisfy the following [Condition 1] and [Condition 2].

[0180] [Condition 1]

[0181] 0.1 =< TL / OTTL =< 0.6

[0182] [Condition 2]

[0183] 1.25 =< Pin / Pout =< 10

[0184] Here, 'TL' may be the distance from the object-side surface vertex of the lens farthest from the optical member among the lenses (hereinafter, 'the first lens (e.g., the first lens (L1) of FIG. 8 or 9)') to the upper-side surface vertex of the lens closest to the optical member (hereinafter, 'the n-th lens (e.g., the fourth lens (L4) of FIG. 8 or 9)'). In one embodiment, 'OTTL' may be the sum of a first distance measured along the optical axis from the object-side surface vertex of the first lens to the reflective surface (e.g., the first distance (OTTL1) of FIG. 8)) and a second distance from a point where the reflective surface intersects the optical axis to the image sensor (e.g., the second distance (OTTL2) of FIG. 8). In one embodiment, 'Pin' may be the maximum length of the optical member measured parallel to the second distance measurement direction. In one embodiment, 'Pout' may be the maximum length of the optical member measured parallel to the first distance measurement direction.

[0185] According to one embodiment, the optical member may further include an incident surface (e.g., an incident surface (IS) of FIG. 8) onto which light focused by the lenses is incident, an exit surface (e.g., an exit surface (ES) of FIG. 8) arranged to face the image sensor, and a light-blocking member (e.g., a light-blocking member (915a, 915b) of FIG. 21 or 22) provided on at least a portion of an edge of the incident surface or at least a portion of an edge of the exit surface.

[0186] According to one embodiment, the camera module and / or its optical system as described above can satisfy the following [Conditional Expression 3].

[0187] [Condition 3]

[0188] 50 =< Vd1 =< 95

[0189] Here, 'Vd1' may be the dispersion value of the first lens.

[0190] According to one embodiment, the camera module and / or its optical system may further include at least one lens having a negative refractive power and positioned between the first lens and the n-th lens. In one embodiment, among the at least one lens having a negative refractive power, the lens positioned closest to the n-th lens may satisfy the following [Conditional Expression 4].

[0191] [Conditional Expression 4]

[0192] 10 =< Vd_neg =< 45

[0193] Here, 'Vd_neg' may be a dispersion value of the lens placed closest to the n-th lens among the at least one lens having negative refractive power.

[0194] According to one embodiment, the camera module and / or its optical system as described above may have an angle of view of 5 degrees or more and 35 degrees or less.

[0195] According to one embodiment, at least one of the at least two lenses may be configured to reciprocate along the optical axis.

[0196] According to one embodiment, at least one of the at least two lenses may be configured to move horizontally in a plane intersecting the optical axis.

[0197] In one embodiment, the optical member may be configured to perform a horizontal translation, rotation or tilt operation with respect to the image sensor.

[0198] According to one embodiment, the image sensor may be configured to move horizontally in a plane intersecting the direction of propagation of light reflected by the reflective surface and incident on the image sensor.

[0199] According to one embodiment, the first lens may have positive refractive power and satisfy the following [Conditional Expression 5] and [Conditional Expression 6].

[0200] [Condition 5]

[0201] 1.45 =< nd1 =< 1.6

[0202] [Condition 6]

[0203] 1.6 =< ndn =< 1.7

[0204] Here, 'nd1' may be the refractive index of the first lens, and 'ndn' may be the refractive index of the nth lens.

[0205] According to one embodiment, the optical member may include an incident surface onto which light focused by the lenses is incident, and a first outer surface parallel to the incident surface (e.g., the first outer surface (615) of FIG. 8). In this case, the 'Pout' may be a distance between the incident surface and the first outer surface.

[0206] According to one embodiment of the present disclosure, an electronic device (e.g., electronic device (101, 200, 300, 400) of FIGS. 1 to 6) may include a camera module (e.g., camera assembly (307) of FIG. 5, camera modules (500, 600, 700, 800, 900) of FIGS. 6 to 9, FIGS. 13, 17, FIG. 21 and / or FIG. 22), and a processor (e.g., processor (120) of FIG. 1) configured to acquire a subject image using the camera module. In one embodiment, the camera module may include an optical member (e.g., an optical member (601) of FIG. 8 or 9) including at least two lenses (e.g., lenses L1, L2, L3, L4 of FIG. 8 or 9) aligned along an optical axis (e.g., an optical axis (O) of FIG. 8 or 9), a reflective surface (e.g., a reflective surface (RS) of FIG. 8) that reflects light focused by the lenses at least once, and an image sensor (e.g., an image sensor (I) of FIG. 9 or 9) arranged to detect the light reflected by the reflective surface. In one embodiment, the electronic device, the camera module and / or the optical system thereof may satisfy the following [Conditional Expression 1] and [Conditional Expression 2].

[0207] [Condition 1]

[0208] 0.1 =< TL / OTTL =< 0.6

[0209] [Condition 2]

[0210] 1.25 =< Pin / Pout =< 10

[0211] Here, 'TL' may be the distance from the object-side surface vertex of the lens farthest from the optical member (hereinafter, 'the first lens (e.g., the first lens (L1) of FIG. 8 or 9)') to the image-side surface vertex of the lens closest to the optical member (hereinafter, 'the n-th lens (e.g., the fourth lens (L4) of FIG. 8 or 9)'). In one embodiment, 'OTTL' may be the sum of a first distance measured along the optical axis from the object-side surface vertex of the first lens to the reflective surface (e.g., the first distance (OTTL1) of FIG. 8)) and a second distance from a point where the reflective surface intersects the optical axis to the image sensor (e.g., the second distance (OTTL2) of FIG. 8). In one embodiment, 'Pin' may be the maximum length of the optical member measured parallel to the second distance measurement direction. In one embodiment, 'Pout' may be the maximum length of the optical member measured parallel to the first distance measurement direction.

[0212] According to one embodiment, the optical member may include an incident surface onto which light focused by the lenses is incident, and a first outer surface parallel to the incident surface (e.g., the first outer surface (615) of FIG. 8). In one embodiment, the 'Pout' may be a distance between the incident surface and the first outer surface.

[0213] According to one embodiment, the first lens may have a defined refractive power.

[0214] According to one embodiment, the electronic device, camera module and / or optical system thereof as described above may satisfy the following [Conditional Expression 3].

[0215] [Condition 3]

[0216] 50 =< Vd1 =< 95

[0217] Here, 'Vd1' may be the dispersion value of the first lens.

[0218] According to one embodiment, the electronic device and / or camera module as described above may further include an incident surface on which light focused by the lenses is incident as a part of the surface of the optical member, an exit surface arranged to face the image sensor as another part of the surface of the optical member, and a light blocking member (e.g., a light blocking member (915a, 915b) of FIG. 21 or FIG. 22) provided on at least a part of an edge of the incident surface or at least a part of an edge of the exit surface.

[0219] According to one embodiment, the electronic device and / or camera module as described above may further include at least one lens having a negative refractive power and positioned between the first lens and the n-th lens. In one embodiment, among the at least one lens having a negative refractive power, the lens positioned closest to the n-th lens may satisfy the following [Conditional Expression 4].

[0220] [Conditional Expression 4]

[0221] 10 =< Vd_neg =< 45

[0222] Here, 'Vd_neg' may be a dispersion value of the lens placed closest to the n-th lens among the at least one lens having negative refractive power.

[0223] According to one embodiment, the first lens has a defined refractive power, and the electronic device, camera module and / or optical system thereof can satisfy the following [Conditional Expression 5] and [Conditional Expression 6].

[0224] [Condition 5]

[0225] 1.45 =< nd1 =< 1.6

[0226] [Condition 6]

[0227] 1.6 =< ndn =< 1.7

[0228] Here, 'nd1' may be the refractive index of the first lens, and 'ndn' may be the refractive index of the nth lens.

[0229] According to one embodiment, the electronic device, camera module and / or optical system thereof may have an angle of view of 5 degrees or more and 35 degrees or less.

[0230] According to one embodiment, the image sensor may be configured to move horizontally in a plane intersecting the direction of propagation of light reflected by the optical member and incident on the image sensor.

[0231] 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 (207; 500; 600; 700; 800; 900), At least two lenses (L1, L2, L3, L4) aligned along the optical axis; An optical member (R; 601; 701; 801; 901) including a reflective surface (RS) that reflects light focused by the above lenses at least once; and An image sensor (I) is disposed to detect light reflected by the reflective surface, A camera module that satisfies the following [Condition 1] and [Condition 2]. [Condition 1] 0.1 =< TL / OTTL =< 0.6 [Condition 2] 1.25 =< Pin / Pout =< 10 Here, 'TL' is the distance from the object-side vertex of the lens farthest from the optical member among the lenses (hereinafter, 'the first lens (L1)') to the image-side vertex of the lens closest to the optical member (hereinafter, 'the n-th lens'). 'OTTL' is the sum of a first distance (OTTL1) measured along the optical axis from the object-side surface vertex of the first lens to the reflective surface, and a second distance (OTTL2) from the point where the reflective surface intersects the optical axis to the image sensor. 'Pin' is the maximum length of the optical member measured parallel to the second distance measuring direction, 'Pout' is the maximum length of the optical member measured parallel to the first distance measuring direction.

2. In the first paragraph, the optical member, The incident surface onto which light focused by the above lenses enters; an emission surface arranged to face the image sensor; and A camera module further comprising a light shielding member (915a, 915b) provided on at least a portion of an edge of the incident surface or at least a portion of an edge of the emission surface.

3. A camera module satisfying the following [Conditional Expression 3] in any one of clauses 1 to 2. [Condition 3] 50 =< Vd1 =< 95 Here, 'Vd1' is the dispersion value of the first lens.

4. In any one of paragraphs 1 to 3, further comprising at least one lens having a refractive power of negative and arranged between the first lens and the nth lens, A camera module in which the lens closest to the nth lens among the at least one lens having a negative refractive power satisfies the following [Conditional Expression 4]. [Conditional expression 4] 10 =< Vd_neg =< 45 Here, 'Vd_neg' is the dispersion value of the lens placed closest to the nth lens among the at least one lens having negative refractive power.

5. A camera module having an angle of view of 5 degrees or more and 35 degrees or less according to any one of claims 1 to 4.

6. A camera module according to any one of claims 1 to 5, wherein at least one of the at least two lenses is configured to reciprocate along the optical axis.

7. A camera module according to any one of claims 1 to 6, wherein at least one of the at least two lenses is configured to move horizontally in a plane intersecting the optical axis.

8. A camera module according to any one of claims 1 to 7, wherein the optical member is configured to perform a horizontal movement, rotation or tilt operation with respect to the image sensor.

9. A camera module according to any one of claims 1 to 8, wherein the image sensor is configured to move horizontally in a plane intersecting the direction in which light reflected by the reflective surface and incident on the image sensor is transmitted.

10. A camera module according to any one of claims 1 to 9, wherein the first lens has positive refractive power and satisfies the following [Conditional Expression 5] and [Conditional Expression 6]. [Condition 5] 1.45 =< nd1 =< 1.6 [Condition 6] 1.6 =< ndn =< 1.7 Here, 'nd1' is the refractive index of the first lens, and 'ndn' is the refractive index of the nth lens.

11. In any one of clauses 1 to 10, the optical member is: An incident surface onto which light focused by the above lenses is incident; and It includes a first outer surface (615) parallel to the above-mentioned entrance surface, The above 'Pout' is a camera module which is the gap between the incident surface and the first outer surface.

12. A camera module according to any one of claims 1 to 11, wherein the first lens has a defined refractive power.

13. In electronic devices (101; 200; 300; 400), A camera module (207; 500; 600; 700; 800; 900) according to any one of claims 1 to 12; and An electronic device including a processor (120) set to acquire a subject image using the above camera module.

Images