Patent Publication Number: US-2023164251-A1

Title: Camera structure and electronic device comprising camera structure

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of International Application No. PCT/KR2021/009116, designating the United States, filed on Jul. 15, 2021, in the Korean Intellectual Property Receiving Office and claiming priority to Korean Patent Application No. 10-2020-0090154, filed on Jul. 21, 2020, in the Korean Intellectual Property Office, the disclosures of which are incorporated by reference herein in their entireties. 
    
    
     BACKGROUND 
     Field 
     The disclosure relates to a camera structure and an electronic device including the camera structure. 
     Description of Related Art 
     Various types of cameras may be mounted on an electronic device. A plurality of cameras may be included in an electronic device to enable photographing in various photographing conditions (e.g., focal length, angle of view). A standard camera, a wide-angle camera, and a telephoto camera may be included in an electronic device, according to angle of view. 
     Such a plurality of cameras may be arranged to share one camera window. The camera window may be configured of a transparent material so that external light can be incident to the plurality of cameras. 
     SUMMARY 
     Various cameras may include different lens assemblies having different optical specifications. In a case in which the sizes of the lens assemblies are different from each other, the sizes of the barrels for accommodating the lens assemblies and the sizes of the bodies of the cameras may be different from each other. 
     When the sizes of a plurality of cameras are different from each other, the cameras may be viewed as having different shapes through a camera window shared by the plurality of cameras. Accordingly, the unity between the cameras may be reduced, thereby reducing external elegance and aesthetics of the electronic device. 
     In addition, if housings covering the cameras are machined into different sizes, machining cost and machining difficulties may increase. 
     Various embodiments disclosed herein may provide a camera structure in which cameras viewed through a camera window shared by the cameras have a sense of unity and aesthetics with each other and an electronic device including the camera structure. 
     An electronic device according to various example embodiments of the disclosure may include a first camera including a first camera barrel in which a first lens assembly is accommodated, a second camera including a second camera barrel in which a second lens assembly is accommodated, a cover housing including a first opening corresponding to the first camera barrel of the first camera and a second opening corresponding to the second camera barrel of the second camera and disposed to substantially cover the first camera and the second camera, a camera window including a first transparent area at a portion corresponding to the first opening and a second transparent area at a portion corresponding to the second opening and disposed on the cover housing, a first decoration unit disposed on an inner circumference of the first opening of the cover housing and having an inclination formed on the inner circumference thereof, and a second decoration unit disposed on an inner circumference of the second opening of the cover housing and having an inclination formed on the inner circumference thereof, wherein the diameters of the first transparent area and the second transparent area of the camera window may be the same with each other, and the diameters of the first decoration unit and the second decoration unit may be the same with each other. 
     A camera structure according to various example embodiments disclosed herein may include a first camera including a first camera barrel in which a first lens assembly is accommodated, a second camera including a second camera barrel in which a second lens assembly is accommodated, a cover housing including a first opening corresponding to the first camera barrel of the first camera and a second opening corresponding to the second camera barrel of the second camera and disposed to substantially cover the first camera and the second camera, a camera window including a first transparent area at a portion corresponding to the first opening and a second transparent area at a portion corresponding to the second opening and disposed on the cover housing, a first decoration unit configured to have a diameter decreasing away from the camera window and disposed on the inner circumference of the first opening of the cover housing, and a second decoration unit configured to have a diameter decreasing away from the camera window and disposed on the inner circumference of the second opening of the cover housing, wherein the diameters of the first transparent area and the second transparent area of the camera window may be the same with each other, and the diameters of the first decoration unit and the second decoration unit may be the same with each other. 
     According to various embodiments disclosed herein, a plurality of cameras included in the camera structure may be exposed to the outside in a unified shape to improve the external aesthetics of the camera structure. In addition, a three-dimensional effect of the outer appearances of cameras may be improved by including a configuration capable of providing a three-dimensional effect to a housing configured to cover the cameras. 
     In addition, by unifying the sizes of the portions where the cameras are viewed, the processing cost and difficulty may be reduced. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       In relation to the description of drawings, the same or similar reference numerals may be used for the same or similar components. 
       The above and other aspects, features and advantages of certain embodiments of the present disclosure will be more apparent from the following detailed description, taken in conjunction with the accompanying drawings, in which: 
         FIG.  1    is a block diagram illustrating an example electronic device in a network environment according to various embodiments; 
         FIG.  2 A  is a perspective view illustrating a front surface of an example electronic device according to various embodiments; 
         FIG.  2 B  is a perspective view illustrating a rear surface of the example electronic device illustrated in  FIG.  2 A ; 
         FIG.  3 A  is an exploded perspective view of an example camera structure according to various embodiments; 
         FIG.  3 B  is a plan view of the camera window illustrated in  FIG.  3 A ; 
         FIG.  3 C  is a plan view of the cover housing illustrated in  FIG.  3 A ; 
         FIG.  3 D  is a plan view of the camera structure illustrated in  FIG.  3 A ; 
         FIG.  4 A  is a cross-sectional view of the example camera structure taken along line D 1 -D 1  of  FIG.  3 D ; 
         FIG.  4 B  is a cross-sectional view of the example camera structure taken along line D 2 -D 2  of  FIG.  3 D ; 
         FIG.  5    is a side view of an example first camera and an example second camera according to various embodiments; 
         FIG.  6    is a cross-sectional view of an example camera structure according to various embodiments; and 
         FIG.  7    is a view for explaining an example machining method of a decoration unit and a covering unit according to various embodiments. 
     
    
    
     DETAILED DESCRIPTION 
     It should be appreciated that various embodiments of the present disclosure and the terms used therein are not intended to limit the technological features set forth herein to particular embodiments and include various changes, equivalents, or replacements for a corresponding embodiment. 
     With regard to the description of the drawings, similar reference numerals may be used to refer to similar or related elements. It is to be understood that a singular form of a noun corresponding to an item may include one or more of the item, unless the relevant context clearly indicates otherwise. 
     As used herein, each of such phrases 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,” may include any one of, or all possible combinations of the items enumerated together in a corresponding one of the phrases. As used herein, such terms as “1st” and “2nd,” or “first” and “second” may be used to simply distinguish components from another, and do not limit the components in other aspect (e.g., importance or order). It is to be understood that if an element (e.g., a first element) is referred to, with or without the term “operatively” or “communicatively”, as “coupled with,” “coupled to,” “connected with,” or “connected to” another element (e.g., a second element), the element may be coupled with the other element directly (e.g., wiredly), wirelessly, or via a third element. 
       FIG.  1    is a block diagram illustrating an example electronic device  101  in a network environment  100  according to various embodiments. Referring to  FIG.  1   , the electronic device  101  in the network environment  100  may communicate with an electronic device  102  via a first network  198  (e.g., a short-range wireless communication network), or at least one of an electronic device  104  or a server  108  via a second network  199  (e.g., a long-range wireless communication network). According to an embodiment, the electronic device  101  may communicate with the electronic device  104  via the server  108 . According to an embodiment, the electronic device  101  may include a processor  120 , memory  130 , an input module  150 , a sound 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 (SIM)  196 , or an antenna module  197 . In various embodiments, at least one of the components (e.g., the connection terminal  178 ) may be omitted from the electronic device  101 , or one or more other components may be added in the electronic device  101 . In various embodiments, some of the components (e.g., the sensor module  176 , the camera module  180 , or the antenna module  197 ) may be implemented as a single component (e.g., the display module  160 ). 
     The processor  120  may execute, for example, 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  coupled with the processor  120 , and may perform various data processing or computation. According to an embodiment, as at least part of the data processing or computation, the processor  120  may store a command or data received from another component (e.g., the sensor module  176  or the communication module  190 ) in volatile memory  132 , process the command or the data stored in the volatile memory  132 , and store resulting data in non-volatile memory  134 . According to an embodiment, the processor  120  may include a main processor  121  (e.g., a central processing unit (CPU) or an application processor (AP)), or an auxiliary processor  123  (e.g., a graphics processing unit (GPU), a neural processing unit (NPU), an image signal processor (ISP), a sensor hub processor, or a communication processor (CP)) that is operable independently from, or in conjunction 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 adapted to consume less power than the main processor  121 , or to be specific to a specified function. The auxiliary processor  123  may be implemented as separate from, or as part of the main processor  121 . 
     The auxiliary processor  123  may control at least some of functions or states related to at least one component (e.g., the display module  160 , the sensor module  176 , or the communication module  190 ) among the components of the electronic device  101 , instead 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 state (e.g., executing an application). According to an embodiment, the auxiliary processor  123  (e.g., an image signal processor or a communication processor) may be implemented as part of another component (e.g., the camera module  180  or the communication module  190 ) functionally related to the auxiliary processor  123 . According to an embodiment, the auxiliary processor  123  (e.g., the neural processing unit) may include a hardware structure specified for artificial intelligence model processing. An artificial intelligence model may be generated by machine learning. Such learning may be performed, e.g., by the electronic device  101  where the artificial intelligence is performed or via a separate server (e.g., the server  108 ). Learning algorithms may include, but are not limited to, e.g., supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning. The artificial intelligence model may include a plurality of artificial neural network layers. The artificial neural network may be 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), deep Q-network or a combination of two or more thereof, but is not limited thereto. The artificial intelligence model may, additionally or alternatively, include a software structure other than the hardware structure. 
     The memory  130  may store various data used by at least one component (e.g., the processor  120  or the sensor module  176 ) of the electronic device  101 . The various data may include, for example, software (e.g., the program  140 ) and input data or output data for a command related thereto. The memory  130  may include the volatile memory  132  or the non-volatile memory  134 . 
     The program  140  may be stored in the memory  130  as software, and may include, for example, an operating system (OS)  142 , middleware  144 , or an application  146 . 
     The input module  150  may receive a command or data to be used by another component (e.g., the processor  120 ) of the electronic device  101 , from the outside (e.g., a user) of the electronic device  101 . The input module  150  may include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen). 
     The sound output module  155  may output sound signals to the outside of the electronic device  101 . The sound output module  155  may include, for example, a speaker or a receiver. The speaker may be used for general purposes, such as playing multimedia or playing record. The receiver may be used for receiving incoming calls. According to an embodiment, the receiver may be implemented as separate from, or as part of the speaker. 
     The display module  160  may visually provide information to the outside (e.g., a user) of the electronic device  101 . The display module  160  may include, for example, a display, a hologram device, or a projector and control circuitry to control a corresponding one of the display, hologram device, and projector. According to an embodiment, the display module  160  may include a touch sensor adapted to detect a touch, or a pressure sensor adapted to measure the intensity of force incurred by the touch. 
     The audio module  170  may convert a sound into an electrical signal and vice versa. According to an embodiment, the audio module  170  may obtain the sound via the input module  150 , or output the sound via the sound output module  155  or a headphone of an external electronic device (e.g., an electronic device  102 ) directly (e.g., wiredly) or wirelessly coupled with the electronic device  101 . 
     The sensor module  176  may detect an operational state (e.g., power or temperature) of the electronic device  101  or an environmental state (e.g., a state of a user) external to the electronic device  101 , and then generate an electrical signal or data value corresponding to the detected state. According to an embodiment, the sensor module  176  may include, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor. 
     The interface  177  may support one or more specified protocols to be used for the electronic device  101  to be coupled with the external electronic device (e.g., the electronic device  102 ) directly (e.g., wiredly) or wirelessly. According to an embodiment, the interface  177  may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, a secure digital (SD) card interface, or an audio interface. 
     A connection terminal  178  may include a connector via which the electronic device  101  may be physically connected with the external electronic device (e.g., the electronic device  102 ). According to an embodiment, the connection terminal  178  may include, for example, a HDMI connector, a USB connector, a SD card connector, or an audio connector (e.g., a headphone connector). 
     The haptic module  179  may convert an electrical signal into a mechanical stimulus (e.g., a vibration or a movement) or electrical stimulus which may be recognized by a user via his tactile sensation or kinesthetic sensation. According to an embodiment, the haptic module  179  may include, for example, a motor, a piezoelectric element, or an electric stimulator. 
     The camera module  180  may capture a still image or moving images. According to an embodiment, the camera module  180  may include one or more lenses, image sensors, image signal processors, or flashes. 
     The power management module  188  may manage power supplied to the electronic device  101 . According to an embodiment, the power management module  188  may be implemented as at least part of, for example, a power management integrated circuit (PMIC). 
     The battery  189  may supply power to at least one component of the electronic device  101 . According to an embodiment, the battery  189  may include, for example, a primary cell which is not rechargeable, a secondary cell which is rechargeable, or a fuel cell. 
     The communication module  190  may support establishing a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device  101  and the external electronic device (e.g., the electronic device  102 , the electronic device  104 , or the server  108 ) and performing communication via the established communication channel. The communication module  190  may include one or more communication processors that are operable independently from the processor  120  (e.g., the application processor (AP)) and supports a direct (e.g., wired) communication or a wireless communication. According to an 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 (PLC) module). A corresponding one of these communication modules may communicate with the external electronic device via the first network  198  (e.g., a short-range communication network, such as Bluetooth™, wireless-fidelity (Wi-Fi) direct, or infrared data association (IrDA)) or the 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., LAN or wide area network (WAN)). These various types of communication modules may be implemented as a single component (e.g., a single chip), or may be implemented as multi components (e.g., multi chips) separate from each other. The wireless communication module  192  may identify and authenticate the electronic device  101  in a communication network, such as the first network  198  or the second network  199 , using subscriber information (e.g., international mobile subscriber identity (IMSI)) stored in the subscriber identification module  196 . 
     The wireless communication module  192  may support a 5G network, after a 4G network, and next-generation communication technology, e.g., new radio (NR) access technology. The NR access technology may support enhanced mobile broadband (eMBB), massive machine type communications (mMTC), or ultra-reliable and low-latency communications (URLLC). The wireless communication module  192  may support a high-frequency band (e.g., the mmWave band) to achieve, e.g., a high data transmission rate. The wireless communication module  192  may support various technologies for securing performance on a high-frequency band, such as, e.g., beamforming, massive multiple-input and multiple-output (massive MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module  192  may 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 an embodiment, the wireless communication module  192  may support a peak data rate (e.g., 20 Gbps or more) for implementing eMBB, loss coverage (e.g., 164 dB or less) for implementing mMTC, or U-plane latency (e.g., 0.5 ms or less for each of downlink (DL) and uplink (UL), or a round trip of lms or less) for implementing URLLC. 
     The antenna module  197  may transmit or receive a signal or power to or from the outside (e.g., the external electronic device) of the electronic device  101 . According to an embodiment, the antenna module  197  may include an antenna including a radiating element composed of or including a conductive material or a conductive pattern formed in or on a substrate (e.g., a printed circuit board (PCB)). According to an embodiment, the antenna module  197  may include a plurality of antennas (e.g., array antennas). In such a case, at least one antenna appropriate for a communication scheme used in the communication network, such as the first network  198  or the second network  199 , may be selected, for example, by the communication module  190  (e.g., the wireless communication module  192 ) from the plurality of antennas. The signal or the power may then be transmitted or received between the communication module  190  and the external electronic device via the selected at least one antenna. According to an embodiment, another component (e.g., a radio frequency integrated circuit (RFIC)) other than the radiating element may be additionally formed as part of the antenna module  197 . 
     According to various embodiments, the antenna module  197  may form a mmWave antenna module. According to an embodiment, the mmWave antenna module may include a printed circuit board, a RFIC disposed on a first surface (e.g., the bottom surface) of the printed circuit board, or adjacent to the first surface and capable of supporting a designated high-frequency band (e.g., the mmWave band), and a plurality of antennas (e.g., array antennas) disposed on a second surface (e.g., the top or a side surface) of the printed circuit board, or adjacent to the second surface and capable of transmitting or receiving signals of the designated high-frequency band. 
     At least some of the above-described components may be coupled mutually and communicate signals (e.g., commands or data) therebetween via an inter-peripheral communication scheme (e.g., a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)). 
     According to an embodiment, commands or data may be transmitted or received between the electronic device  101  and the external electronic device  104  via the server  108  coupled with the second network  199 . Each of the electronic devices  102  or  104  may be a device of a same type as, or a different type, from the electronic device  101 . According to an embodiment, all or some of operations to be executed at the electronic device  101  may be executed at one or more of the external electronic devices  102 ,  104 , or  108 . For example, if the electronic device  101  should perform a function or a service automatically, or in response to a request from a user or another device, the electronic device  101 , instead of, or in addition to, executing the function or the service, may request the one or more external electronic devices to perform at least part of the function or the service. The one or more external electronic devices receiving the request may perform the at least part of the function or the service requested, or an additional function or an additional service related to the request, and transfer an outcome of the performing to the electronic device  101 . The electronic device  101  may provide the outcome, with or without further processing of the outcome, as at least part of a reply to the request. To that end, a cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device  101  may provide ultra low-latency services using, e.g., distributed computing or mobile edge computing. In an embodiment, the external electronic device  104  may include an internet-of-things (IoT) device. The server  108  may be an intelligent server using machine learning and/or a neural network. According to an embodiment, the external electronic device  104  or the server  108  may be included in the second network  199 . The electronic device  101  may be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology or IoT-related technology. 
       FIG.  2 A  is a perspective view showing a front surface of an example electronic device according to various embodiments.  FIG.  2 B  is a perspective view showing a rear surface of the example electronic device illustrated in  FIG.  2 A . 
     Referring to  FIG.  2 A  and  FIG.  2 B , an electronic device  200  according to an embodiment may include a housing  210  including a first surface (or a front surface)  210 A, a second surface (or a rear surface)  210 B, and a side surface  210 C configured to surround a space between the first surface  210 A and the second surface  210 B. In an embodiment (not shown), a housing may refer to a structure configuring the first surface  210 A of  FIG.  2 A , the second surface  210 B of  FIG.  2 B , and a portion of the side surface  210 C. According to an embodiment, the first surface  210 A may be configured by a front plate  202  of which at least a portion is substantially transparent. In an embodiment, the front plate  202  may be coupled to the housing  210  to configure an inner space together with the housing  210 . In various embodiments, the inner space may refer to a space configured to accommodate at least a portion of a display  201  as an inner space of the housing  210 . 
     According to various embodiments, the second surface  210 B may be configured by a rear plate  211  which is substantially opaque. The rear plate  211  may be configured by, for example, coated or tinted glass, ceramic, polymer, metal (e.g., aluminum, stainless steel (STS), or magnesium), or a combination of at least two of the above materials. The side surface  210 C may be coupled to the front plate  202  and the rear plate  211  and be configured by a side bezel structure (or “side member”)  218  including a metal and/or a polymer. In various embodiments, the rear plate  211  and the side bezel structure  218  may be integrally configured and may include the same material (e.g., a metal material such as aluminum). 
     In an embodiment, the front plate  202  may include, at opposite ends of long edges of the front plate  202 , two first areas  210 D (e.g., curved areas) bended from the first surface  210 A toward the rear plate  211  to extend seamlessly. In an embodiment, the rear plate  211  may include, at opposite ends of long edges thereof, two second areas  210 E (e.g., curved areas) bended from the second surface  210 B toward the front plate  202  to extend seamlessly. In various embodiments, the front plate  202  (or the rear plate  211 ) may include only one among the first areas  210 D (or the second areas  210 E). In an embodiment, a portion among the first areas  210 D or the second areas  210 E may not be included. In an embodiment, when viewed from the side surface of the electronic device  200 , the side bezel structure  218  may have a first thickness (or width) at the side of a side surface (e.g., the side surface through which a connector hole  208  extends) which does not include the first areas  210 D or the second areas  210 E, and may have a second thickness smaller than the first thickness at the side of a side surface (e.g., the side surface on which a key input device  217  is disposed) including the first areas  210 D or the second areas  210 E. 
     According to an embodiment, the electronic device  200  may include at least one among a display  201 , audio modules  203 ,  207 , and  214 , a sensor module  204 , camera modules  205  and  230 , a key input device  217 , a light emitting element  206 , and connector holes  208  and  209 . In various embodiments, the electronic device  200  may omit at least one (e.g., a key input device  217  or a light emitting element  206 ) among components or additionally include other components. 
     The display  201  may be exposed, for example, through a considerable portion of the front plate  202 . In various embodiments, at least a portion of the display  201  may be exposed through the front plate  202  configuring the first areas  210 D of the first surface  210 A and the side surface  210 C. In various embodiments, the rim of the display  201  may be configured to be substantially the same as the shape of an adjacent outer periphery of the front plate  202 . In an embodiment (not shown), the gap between the outer periphery of the display  201  and the outer periphery of the front plate  202  may be configured to be substantially the same, so as to expand the area to which the display  201  is exposed. 
     In an embodiment (not shown), a recess or an opening is disposed at a portion of a screen display area (e.g., an active area) or an area outside the screen display area (e.g., an inactive area) of the display  201 , and at least one among an audio module  214 , a sensor module  204 , camera modules  205  and  230 , and a light emitting element  206  aligned with the recess or the opening may be included. In an embodiment (not shown), at least one among an audio module  214 , a sensor module  204 , camera modules  205  and  230 , and a light emitting element  206  may be included in the rear surface of the screen display area of the display  201 . In an embodiment (not shown), the display  201  may be disposed to be coupled or adjacent to a touch detection circuit, a pressure sensor capable of measuring strength (pressure) of touch, and/or a digitizer configured to detect a magnetic stylus pen. In an embodiment, at least a portion of the sensor module  204  and/or at least a portion of the key input device  217  may be arranged at the first areas  210 D and/or the second areas  210 E. 
     The audio modules  203 ,  207 , and  214  may include a microphone hole  203  and speaker holes  207  and  214 . In the microphone hole  203 , a microphone configured to acquire external sound may be disposed, and in various embodiments, a plurality of microphones may be arranged so as to detect the direction of sound. The speaker holes  207  and  214  may include an external speaker hole  207  and a receiver hole  214  for a call. In various embodiments, the speaker holes  207  and  214  and the microphone hole  203  may be implemented as one hole, or a speaker may be included without the speaker holes  207  and  214  (e.g., a piezo speaker). 
     The sensor module  204  may produce an electric signal or data value corresponding to an internal operating state of the electronic device  200  or an external environmental state. The sensor module  204  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) arranged on the first surface  210 A of the housing  210 , and/or another sensor module (not shown) (e.g., a heart rate monitor (HRM) sensor or a fingerprint sensor) disposed on the second surface  210 B of the housing  210 . The fingerprint sensor may be disposed not only on the first surface  210 A (e.g., a display  201 ) but also on the second surface  210 B of the housing  210 . The electronic device  200  may further include a sensor module not shown, for example, at least one among a gesture sensor, a gyro sensor, a barometric 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 . 
     The camera modules  205  and  230  may include a first camera device  205  disposed on the first surface  210 A and a second camera device  230  disposed on the second surface  210 B of the electronic device  200 . The camera modules  205  and  230  may include one or more lenses, image sensors, and/or image signal processors. In various embodiments, two or more lenses (infrared cameras, wide-angle and telephoto lenses) and image sensors may be arranged on one surface of the electronic device  200 . 
     The key input device  217  may be disposed on a side surface  210 C of the housing  210 . In an embodiment, the electronic device  200  may not include some or all of the above-described key input devices  217 , and the key input devices  217  not included may be implemented in other forms, such as soft keys, on the display  201 . 
     The light emitting element  206 , for example, may be disposed on the first surface  210 A of the housing  210 . The light emitting element  206  may provide, for example, state information of the electronic device  200  in the form of light. In an embodiment, the light emitting element  206  may provide, for example, a light source interlocked with the operation of the camera module  205 . The light emitting element  206  may include, for example, an LED, an IR LED, and/or a xenon lamp. 
     The connector holes  208  and  209  may include a first connector hole  208  capable of receiving a connector (for example, a USB connector) configured to transmit and receive power and/or data to and from an external electronic device and/or a second connector hole (for example, an earphone jack)  209  capable of receiving a connector configured to transmit and receive an audio signal to and from an external electronic device. 
       FIG.  3 A  is an exploded perspective view of an example camera structure according to various embodiments disclosed herein.  FIG.  3 B  is a plan view of a camera window illustrated in  FIG.  3 A .  FIG.  3 C  is a plan view of a cover housing illustrated in  FIG.  3 A .  FIG.  3 D  is a plan view of the example camera structure illustrated in  FIG.  3 A . 
     According to various embodiments, a camera structure  300  (e.g., the second camera device  230  of  FIG.  2 B ) may include a camera module  301 , a light emitting unit  391 , a cover housing  340 , and a camera window  350 . At least one of the components of the above-described camera structure  300  may be omitted, and the shape of the camera structure  300  is not limited to that shown in the drawings. According to an embodiment, the camera structure  300  may include two or four or more cameras. In the following description, it is assumed that the camera structure  300  includes three cameras (a first camera  310 , a second camera  320 , and a third camera  330 ). 
     According to various embodiments, the camera module  301  may include a first camera  310 , a second camera  320 , and a third camera  330 . Each of the first camera  310 , the second camera  320 , and the third camera  330  may include an image sensor configured to convert light reflected from an object into an electrical signal. The image sensor may be, for example, a sensor such as a charge coupled device (CCD) and a complementary metal oxide semiconductor (CMOS). The first camera  310 , the second camera  320 , and the third camera  330  included in the camera module  301  may be cameras having different types or performing different functions. In an embodiment, the first camera  310 , the second camera  320 , and the third camera  330  may include different types of lens assemblies. For example, the first camera  310  may include a first lens assembly  311 , the second camera  320  may include a second lens assembly  321 , and the third camera  330  may include a third lens assembly  331 . The lens assembly may refer, for example, to at least one optically disposed lens. The first lens assembly  311 , the second lens assembly  321 , and the third lens assembly  331  may be assemblies including lenses having different optical properties (e.g., angle of view, focal length, autofocus, f-number, and/or optical zoom). For example, the first lens assembly  311  of the first camera  310  may be a lens assembly capable of photographing an image with a first angle of view, the second lens assembly  321  of the second camera  320  may be a lens assembly capable of photographing an image with a second angle of view, and the third lens assembly  331  of the third camera  330  may be a lens assembly capable of photographing an image with a third angle of view. The first angle of view may be an angle of view generally classified as a wide angle in the field of cameras, the second angle of view may be an angle of view classified as a standard angle, and the third angle of view may be an angle of view classified as a zoom angle. 
     According to various embodiments, at least one camera among the first camera  310 , the second camera  320 , and the third camera  330  may include an optical image stabilizer (OIS) unit (not shown) configured to drive an OIS. The OIS unit may, for example, be a device configured to compensate shake of the electronic device (e.g., the electronic device  200  of  FIG.  2 A ) in a photographing situation. The OIS unit can compensate the shake of the electronic device by moving an instrument (e.g., a camera barrel, a camera body) in which the lens assembly is accommodated. The OIS unit may be driven by various kinds of forces. For example, the OIS unit may be driven by electromagnetic force or magnetic force between a coil and a magnet, and may be driven by the driving force of an electric motor. 
     According to various embodiments, the first camera  310  may include a first camera body  313  configured to accommodate a printed circuit board on which an image sensor is disposed and accommodate other instruments of the first camera  310  and a first camera barrel  312  in which the first lens assembly  311  is accommodated. At least a portion of the first camera barrel  312  may be inserted into the first opening  341  of the cover housing  340 . 
     According to various embodiments, the second camera  320  may include a second camera body  323  configured to accommodate a printed circuit board on which an image sensor is disposed and accommodate other instruments of the second camera  320  and a second camera barrel  322  in which the second lens assembly  321  is accommodated. At least a portion of the second camera barrel  322  may be inserted into the second opening  342  of the cover housing  340 . 
     According to various embodiments, the third camera  330  may include a third camera body  333  configured to accommodate a printed circuit board on which an image sensor is disposed and accommodate other instruments of the third camera  330  and a third camera barrel  332  in which the third lens assembly  331  is accommodated. 
     According to various embodiments, the sizes of the first lens assembly  311 , the second lens assembly  321 , and the third lens assembly  331  may be different from one another, and thus the sizes of the first camera barrel  312 , the second camera barrel  322 , and the third camera barrel  332  may be different from one another. Therefore, a space between the first camera barrel  312  and the first decoration unit  361 , a space between the second camera barrel  322  and the second decoration unit  362 , and a space between the third camera barrel  332  and the third decoration unit  363  may all have different sizes. A first covering unit  371  may be disposed to fill at least a portion of the space between the first camera barrel  312  and the first decoration unit  361 , and a third covering unit  373  may be disposed to fill at least a portion of the space between the third camera barrel  332  and the third decoration unit  363 . In an embodiment, the size of the second camera barrel  322  may be substantially identical to that of the diameter of the inner circumference of the second decoration unit  362 . Therefore, no covering unit may be disposed between the second camera barrel  322  and the second decoration unit  362 . Details of the first covering unit  371  and the third covering unit  373  will be described later. 
     According to various embodiments, the first camera body  313  of the first camera  310 , the second camera body  323  of the second camera  320 , and the third camera body  333  of the third camera  330  may be at least partially integrated with or coupled to each other to configure the camera module  301 . 
     According to various embodiments, the light emitting unit  391  (e.g., a light emitter) may produce light. The light emitting unit  391  may include an element (e.g., a light emitting element) capable of producing light. For example, the light emitting unit  391  may include an element such as a light emitting diode (LED), an injection laser diode (ILD), or a xenon lamp. In an embodiment, the light emitting unit  391  may operate in a photographing situation to add light in a dark photographing environment, thereby making it possible to take a picture with an appropriate shutter speed and sensitivity (e.g., international standard organization (ISO) value). In an embodiment, the light emitting unit  391  may operate alone to allow a user to use same as a flash. 
     According to various embodiments, a sensor unit  392  may be a sensor configured to measure a user&#39;s biometric information. For example, the sensor unit  392  may be a sensor (e.g., a photoplethysmography (PPG) sensor) configured to measure information related to a user&#39;s heartbeat. The sensor unit  392  may include a light emitting element  392 - 1  and a light receiving element  392 - 2 . The sensor unit  392  may receive, through the light receiving element  392 - 2 , light produced from the light emitting element  392 - 1  and reflected from the skin to measure information related to the heartbeat. 
     According to various embodiments, the cover housing  340  may be disposed to substantially cover the first camera  310 , the second camera  320 , and the third camera  330  included in the camera structure  300 . At least a portion of the cover housing  340  may be supported by the first camera body  313  of the first camera  310 , the second camera body  323  of the second camera  320 , and the third camera body  333  of the third camera  330 . 
     According to various embodiments, the cover housing  340  may include a first opening  341 , a second opening  342 , and a third opening  343 . In an embodiment, the first opening  341  may correspond to the first camera barrel  312 , the second opening  342  may correspond to the second camera barrel  322 , and the third opening  343  may correspond to the third camera barrel  332 . The size of the first opening  341  may be the same as or greater than the size of the first camera barrel  312 , the size of the second opening  342  may be the same as or greater than the size of the second camera barrel  322 , and the size of the third opening  343  may be the same as or greater than the size of the third camera barrel  332 . For example, a portion of the first camera barrel  312  may be inserted into the first opening  341 , and a portion of the second camera barrel  322  may be inserted into the second opening  342 . External light may be incident on the first lens assembly  311  accommodated in the first camera barrel  312  through the first opening  341 , external light may be incident on the second lens assembly  321  accommodated in the second camera barrel  322  through the second opening  342 , and external light may be incident on the third lens assembly  331  accommodated in the third camera barrel  332  through the third opening  343 . 
     According to various embodiments, the camera window  350  may be disposed in a partial area of the camera structure  300 . According to an embodiment, the camera window  350  may be disposed at a portion where the camera structure  300  is exposed to the outside of the electronic device. At least partial area of the camera window  350  may be configured of a material having high light transmittance. For example, the camera window  350  may be configured of substantially transparent glass or synthetic resin. The camera window  350  may block external foreign substances from being introduced into the camera structure  300 . The camera window  350  may be exposed to the external environment, and thus be formed of a material having good durability (e.g., hardness, strength, corrosion resistance). According to an embodiment, the camera window  350  may include a material capable of improving optical properties of the first camera  310 , the second camera  320 , and the third camera  330 . This material may be disposed on the surface of the camera window  350  in a manner such as coating or printing. 
     According to various embodiments, the camera window  350  may be divided into a plurality of areas. For example, the camera window  350  may include a first transparent area  351  corresponding to the first opening  341  of the cover housing  340 , a second transparent area  352  corresponding to the second opening  342  of the cover housing  340 , a third transparent area  353  corresponding to the third opening  343  of the cover housing  340 , a fourth transparent area  354  corresponding to the light emitting unit, a fifth transparent area  355  corresponding to the sensor unit, and an opaque area  356  excluding the first transparent area  351  to the fifth transparent area  355 . In an embodiment, the camera window  350  is configured of a material having high transmittance such as glass, and a material having low transmittance may be disposed on the opaque area  356  excluding the first transparent area  351 , the second transparent area  352 , the third transparent area  353 , the fourth transparent area, and the fifth transparent area  355  in a manner such as coating or printing. For example, a material having a high light absorption rate and thus having a black color may be disposed in the opaque area  356 . In an embodiment, the camera window  350  may be configured of a composite material. For example, the opaque area  356  may be configured of a material having low transmittance, and the first transparent area  351 , the second transparent area  352 , the third transparent area  353 , the fourth transparent area  354 , and the fifth transparent area  355  may be configured of a material having high transmittance. 
     According to various embodiments, as illustrated in  FIG.  3 B , the sizes of the first transparent area  351 , the second transparent area  352 , and the third transparent area  353  may be the same. For example, as illustrated in  FIG.  3 B , in a case in which the first transparent area  351 , the second transparent area  352 , and the third transparent area  353  are substantially circular, the diameter A of the first transparent area  351 , the diameter A of the second transparent area  352 , and the diameter A of the third transparent area  353  may all be the same. For example, the diameter A of the first transparent area  351 , the diameter A of the second transparent area  352 , and the diameter A of the third transparent area  353  may be about 12.3 mm. In an embodiment, the diameter A of the first transparent area  351  may be the same as the diameter of the outer circumference of the first decoration unit  361  (the diameter B of the outer circumference of the first decoration unit  361  in  FIG.  3 C ), the diameter A of the second transparent area  352  may be the same as the diameter of the outer circumference of the second decoration unit  362  (the diameter B of the outer circumference of the second decoration unit  362  in  FIG.  3 C ), and the diameter A of the third transparent area  353  may be the same as the diameter of the outer circumference of the third decoration unit  363  (the diameter B of the outer circumference of the third decoration unit  363  in  FIG.  3 C ). Due to the unity of the size, a plurality of cameras viewed through the camera window  350  may have aesthetic unity. 
     According to various embodiments, the camera structure  300  may include a first decoration unit  361 , a second decoration unit  362 , and a third decoration unit  363 . The first decoration unit  361  may be disposed on the inner circumference of the first opening  341 , the second decoration unit  362  may be disposed on the inner circumference of the second opening  342 , and the third decoration unit  363  may be disposed on the inner circumference of the third opening  343 . Referring to the cross-section (e.g.,  FIG.  4 A ) of the camera structure  300 , side surfaces of the first decoration unit  361 , the second decoration unit  362 , and the third decoration unit  363  may have inclinations (e.g., may be sloped). 
     According to various embodiments, as illustrated in  FIG.  3 C , the first decoration unit  361 , the second decoration unit  362 , and the third decoration unit  363  may be configured in a ring shape. The sizes of the first decoration unit  361 , the second decoration unit  362 , and the third decoration unit  363  may be the same. For example, the diameter B of the outer circumference of the first decoration unit  361 , the diameter B of the outer circumference of the second decoration unit  362 , and the diameter B of the outer circumference of the third decoration unit  363  may be the same with one another, and the diameter C of the inner circumference of the first decoration unit  361 , the diameter C of the inner circumference of the second decoration unit  362 , and the diameter C of the inner circumference of the third decoration unit  363  may be the same with one another. The width W of the first decoration unit  361 , the width W of the second decoration unit  362 , and the width W of the third decoration unit  363  may also be the same. The width W may refer to the distance between the outer circumferential surface and the inner circumferential surface of the decoration unit. For example, the diameter B of the outer circumference of the decoration unit may be 12.3 mm, the diameter C of the inner circumference of the decoration unit may be 11 mm, and the width W of the decoration unit may be about 1.3 mm. The first decoration unit  361 , the second decoration unit  362 , and the third decoration unit  363  may be machined in the same way by a machining body of the same size, and thus external shapes of the decoration units may be the same. 
     According to various embodiments, the first decoration unit  361 , the second decoration unit  362 , and the third decoration unit  363  may be configured by machining the cover housing  340 . For example, the first decoration unit  361 , the second decoration unit  362 , and the third decoration unit  363  may be configured by machining a portion of the cover housing  340  using a computerized numerical control (CNC) method. In an embodiment, the first decoration unit  361 , the second decoration unit  362 , and the third decoration unit  363  may be separately machined to be arranged on the cover housing  340 . 
     According to various embodiments, the first covering unit  371  may be disposed on the inner circumference of the first decoration unit  361  such that at least a portion between the first camera barrel  312  and the first decoration unit  361  is filled. The third covering unit  373  may be disposed on the inner circumference of the third decoration unit  363  such that at least a portion between the third camera barrel  332  and the third decoration unit  363  is filled. The surface of the first covering unit  371  and the surface of the third covering unit  373  may be anodized. For example, the surface of the first covering unit  371  and the surface of the third covering unit  373  may be anodized with a material having low light transmittance. The first covering unit  371  and the third covering unit  373  may be omitted as necessary. For example, in a case in which the first camera  310  and the third camera  330  include an OIS unit, the first covering unit  371  and the third covering unit  373  may be omitted or the sizes thereof may be adjusted in consideration of driving of the OIS unit. 
     According to various embodiments, covering plates  381  and  382  (e.g., cover plate) may be fitted around at least one among the first camera barrel  312  of the first camera  310 , the second camera barrel  322  of the second camera  320 , and the third camera barrel  332  of the third camera  330 . The covering plates  381  and  382  may be configured in a shape which may be fitted around the camera barrels. For example, as illustrated in  FIG.  3 A , in a case in which the covering plates are fitted around the first camera barrel  312  and the second camera barrel  322  configured in a cylindrical shape, the covering plates  381  and  382  are configured in a ring shape to be fitted around the first camera barrel  312  and the second camera barrel  322 . The covering plates  381  and  382  may be configured of a material having low transmittance. In an embodiment, the width of the first covering plate  381  fitted around the first camera barrel  312  may be smaller than the width of the second covering plate  382  fitted around the second camera barrel  322 . 
       FIG.  4 A  is a cross-sectional view of the camera structure taken along line D 1 -D 1  of  FIG.  3 D . 
     According to various embodiments, the first camera barrel  312  of the first camera  310  may be disposed to allow at least a portion thereof to be inserted into the first opening  341  of the cover housing  340 . 
     According to various embodiments, the first decoration unit  361  and the first covering unit  371  may be arranged at the first opening  341  of the cover housing  340 . The inner circumference of the first decoration unit  361  may have an inclination (e.g., be sloped). The first decoration unit  361  may be configured to have a decreasing diameter. The first decoration unit  361  may be configured to have a diameter decreasing away from the camera window  350 . 
     As illustrated in  FIG.  4 A , a first inclined surface  361 A may be configured on the first decoration unit  361 . For example, the first decoration unit  361  may include the first inclined surface  361 A having an inclination of 17 degrees to 20 degrees. In an embodiment, the surface (a first inclined surface  361 A) of the first decoration unit  361  may be anodized. The surface  361 A of the first decoration unit  361 , configured to have a gradually decreasing diameter, may provide a three-dimensional effect to a user. In an embodiment, a hair line may be formed on the surface  361 A of the first decoration unit  361 . 
     According to various embodiments, the first covering unit  371  may be disposed on the inner circumference of the first decoration unit  361 . The first covering unit  371  may be configured to fill at least a portion of the space between the first decoration unit  361  and the first camera barrel  312 . The first covering unit  371  may fill at least a portion of the section between the first decoration unit  361  and the first camera barrel  312  such that the space between the first decoration unit  361  and the first camera barrel  312  is not viewed through the first transparent area  351  of the camera window  350 . A material (e.g., a black material) having low transmittance may be disposed on the surface  371 A of the first covering unit  371 . The surface  371 A of the first covering unit  371  may be configured to have low transmittance by anodizing. 
     According to various embodiments, the first transparent area  351  of the camera window  350  may be disposed at a portion corresponding to the first camera  310 . According to an embodiment, the diameter of the first transparent area  351  may be the same as the diameter of the outer circumference of the first decoration unit  361 . 
     According to various embodiments, the first covering plate  381  may be fitted around the first camera barrel  312 . The first covering plate  381  may fill at least a portion of the section between the first decoration unit  361  and the first camera barrel  312  such that the space between the first decoration unit  361  and the first camera barrel  312  is not viewed through the first transparent area  351  of the camera window  350 . 
     According to various embodiments, a portion excluding the first lens assembly  311  of the first camera  310  may be shielded by the first covering unit  371  and the first covering plate  381 . 
       FIG.  4 B  is a cross-sectional view of the camera structure taken along line D 2 -D 2  of  FIG.  3 D . 
     According to various embodiments, the second camera barrel  322  of the second camera  320  may be disposed to allow at least a portion thereof to be inserted into the second opening  342  of the cover housing  340 . 
     According to various embodiments, the second decoration unit  362  may be disposed on the second opening  342  of the cover housing  340 . The inner circumference of the second decoration unit  362  may have an inclination (e.g., be sloped). The second decoration unit  362  may be configured to have a gradually decreasing diameter. The second decoration unit  362  may be configured to have a diameter decreasing away from the camera window  350 . 
     As illustrated in  FIG.  4 B , a second inclined surface  362 A may be configured on the second decoration unit  362 . For example, the second decoration unit  362  may include the second inclined surface  362 A having an inclination of about 15 degrees to 20 degrees. In an embodiment, the surface (the second inclined surface  362 A) of the second decoration unit  362  may be anodized. The surface  362 A of the second decoration unit  362 , configured to have a gradually decreasing diameter, may provide a three-dimensional effect to a user. In an embodiment, a hair line may be formed on the surface  362 A of the second decoration unit  362 . 
     According to various embodiments, the second transparent area  352  of the camera window  350  may be disposed at a portion corresponding to the second camera  320 . In an embodiment, the diameter of the second transparent area  352  may be the same as the diameter of the outer circumference of the second decoration unit  362 . 
     According to an embodiment, the second camera barrel  322  of the second camera  320  may be disposed to be spaced a predetermined gap G apart from the second decoration unit  362 . This may be in consideration of the movement of the second camera barrel  322  by the OIS driving of the second camera  320 . For example, the gap G may be about 0.9 mm. The separation distance (gap G) between the second camera barrel  322  and the second decoration unit  362  may be at least greater than the operation range of the second camera barrel  322  by the OIS driving. In an embodiment, the second covering unit (not shown) may be disposed between the second camera barrel  322  and the second decoration unit  362 . For example, in a case in which the second camera  320  does not include the OIS unit, the second covering unit may be disposed on the inner circumference of the second decoration unit  362  to fill the space between the second camera barrel  322  and the second decoration unit  362 . In an embodiment, the second covering unit, of which the size has been adjusted to fill at least a portion of the section between the second camera barrel  322  and the second decoration unit  362 , may be disposed on the inner circumference of the second decoration unit  362 . 
     According to various embodiments, the second covering plate  382  may be fitted around the second camera barrel  322 . The second covering plate  382  may fill at least a portion of the section between the second decoration unit  362  and the second camera barrel  322  such that the space between the second decoration unit  362  and the second camera barrel  322  is not viewed through the second transparent area  352  of the camera window  350 . As illustrated in  FIG.  4 B , the second covering plate  382  may be configured to extend, so as to overlap the second decoration unit  362  in at least a partial section. Even though the second camera barrel  322  is moved by the OIS driving, the second covering plate  382  overlapping the second decoration unit  362  may block the space between the second decoration unit  362  and the second camera barrel  322  from being viewed to the outside through the second transparent area  352 . 
     According to various embodiments, a portion excluding the second lens assembly  312  of the second camera  320  may be shielded by the second covering plate  382 . 
     According to various embodiments, an inclination (e.g., slope) may be configured on the inner circumference of the third decoration unit  363  (see  FIG.  3 A ) disposed on the third opening  343  (see  FIG.  3 A ) of the cover housing  340  (see  FIG.  3 A ). The third decoration unit may be configured to have a decreasing diameter. The third decoration unit may include a third inclined surface  361 A, like the first inclined surface  361 A of the first decoration unit  361  and the second inclined surface  362 A of the second decoration unit  362 . The third decoration unit  363  may be configured to have a diameter decreasing away from the camera window  350 , similar to the first decoration unit  361  and the second decoration unit  362 . 
       FIG.  5    is a side view of an example first camera and an example second camera according to various embodiments disclosed herein. 
     Reference numerals and descriptions of the same components as those described above among the components shown in  FIG.  5    will not be repeated. 
     According to various embodiments, grooves  510  and  520  may be configured on the outer circumferences of the camera barrels (e.g., the first camera barrel  312  and the second camera barrel  322 ) around which the covering plates are fitted, to allow the covering plates to be fitted thereinto. The first covering plate  381  may be fitted into a first groove  510  disposed on the first camera barrel  312  to be fixed in position, and the second covering plate  382  may be fitted into a second groove  520  configured on the second camera barrel  322  to be fixed in position. 
     According to various embodiments, the surfaces of the first covering plate  381  and the second covering plate  382  may be configured to be identical or similar to the surfaces of the first camera barrel  312  and the second camera barrel  322  so that the first camera barrel  312  and the second camera barrel  322  and the first covering plate  381  and the second covering plate  382  viewed through the camera window  350  have a sense of aesthetic unity. 
       FIG.  6    is a cross-sectional view of an example camera structure according to various embodiments. 
     Detailed descriptions of the same components as those described above among the components shown in  FIG.  6    will not be repeated. 
     According to various embodiments, a shielding unit  610  (e.g., shield) configured of a material capable of shielding light may be disposed on at least a portion of the surface (hereinafter, referred to as “the first surface  352 A”) facing the second camera  320  in the second transparent area  352  of the camera window  350 . The shielding unit  610  may reduce a phenomenon in which light reflected from the second decoration unit  362  is partially reflected from the first surface  352 A of the second transparent area  352  to be incident on the second lens assembly  321  of the second camera  320 . The shielding unit  610  may shield light reflected from the second decoration unit  362  to reduce a phenomenon in which light is reflected from the first surface  352 A of the second transparent area  352 . The area in which the shielding unit  610  is disposed may be determined by a portion in which light reflected from the second decoration unit  362  reaches the first surface  352 A of the second transparent area  352 . According to the inclination of the second inclined surface  362 A of the second decoration unit  362 , the reflection angle of light reflected from the second decoration unit  362  may vary, and a portion at which the reflected light reaches the first surface  352 A of the second transparent area  352  may vary. An area in which the shielding unit  610  is disposed may be adjusted according to the inclination (or the inclination angle) of the second inclined surface  362 A of the second decorating unit  362 . For example, in a case in which the inclination of the second decoration unit  362  is about 15 degrees to 20 degrees, the length of the shielding unit  610  may be about 0.5 mm. 
     In the above description, the shielding unit  610  has been described to be disposed in the second transparent area  352  for convenience of description, but the shielding unit  610  may also be disposed in the first transparent area  351  (see  FIG.  3 A ) and the third transparent area  353  (see  FIG.  3 A ). 
       FIG.  7    is a view for explaining a machining method of a decoration unit and a covering unit (e.g., cover) according to various embodiments disclosed herein. Hereinafter, descriptions will be made, with reference to the first decoration unit  361  and the first shielding unit  371 . The second decoration unit  362 , the third decoration unit  363 , and the third covering unit  373  may be machined in the same manner as the first decoration unit  361  and the first covering unit  371 . 
     According to various embodiments, the first decoration unit  361 , the second decoration unit  362 , and the third decoration unit  363  may be processed and configured by a first machining body  710  of the same size. For example, the diameter of the first machining body  710  may be greater than the diameters of the outer circumferences of the first decoration unit  361 , the second decoration unit  362 , and the third decoration unit  363 . The first machining body  710  may include an inclined surface  710 A such that the first inclined surface  361 A of the first decoration part  361  is configured. The first machining body  710  may machine the cover housing  340  by rotation to configure the first decoration unit  361 . The first decoration unit  361 , the second decoration unit, and the third decoration unit  363  may be configured by using one machining body, and thus machining costs may be reduced. In addition, machining may be performed at once using the machining body greater than the first decoration unit  361 , the second decoration unit  362 , and the third decoration unit  363 , and thus the first inclined surface  361 A may be more uniformly configured. Since machining may be performed at once by using the machining body, the first inclined surface  361 A may have a higher luminance than the surrounding instruments. Anodizing may be performed on the first inclined surface  361 A of which the inclination is uniformly configured. By performing anodizing, the first decoration unit  361 , the second decoration unit  362 , and the third decoration unit  363  may have high reflectance (luminance). 
     According to various embodiments, the first covering unit  371  and the third covering unit  373  may be machined by a second machining body  720  having a diameter of which the size is the same as those of the diameters of the inner circumferences of the decoration units  361 ,  362 , and  363 . Surfaces of the first covering unit  371  and the third covering unit  373  may be configured to have low light transmittance via anodizing. The surfaces of the first covering unit  371  and the third covering unit  373  may be machined to configure inclinations. 
     An electronic device according to various embodiments disclosed herein may include a first camera including a first camera barrel in which a first lens assembly is accommodated, a second camera including a second camera barrel in which a second lens assembly is accommodated, a cover housing including a first opening corresponding to the first camera barrel of the first camera and a second opening corresponding to the second camera barrel of the second camera and disposed to substantially cover the first camera and the second camera, a camera window including a first transparent area at a portion corresponding to the first opening and a second transparent area at a portion corresponding to the second opening and disposed on the cover housing, a first decoration unit disposed on an inner circumference of the first opening of the cover housing and having an inclination formed on the inner circumference thereof, and a second decoration unit disposed on an inner circumference of the second opening of the cover housing and having an inclination formed on the inner circumference thereof, wherein the diameters of the first transparent area and the second transparent area of the camera window may be the same with each other, and the diameters of the first decoration unit and the second decoration unit may be the same with each other. 
     In addition, the first decoration unit, and the second decoration unit may be ring-shaped, the diameter of the outer circumference of the first decoration unit may be the same as the diameter of the first transparent area of the camera window, and the diameter of the outer circumference of the second decoration unit may be the same as the diameter of the second transparent area of the camera window. 
     In addition, the electronic device may further include a first cover disposed on the inner circumference of the first decoration unit to fill at least a portion of the section between the first camera barrel and the first decoration unit. 
     In addition, a surface of the first cover may be anodized to be configured to have low light transmittance. 
     In addition, the second camera may further include an optical image stabilizer (OIS) configured to move the second camera barrel, and may further include a cover plate fitted around the second camera barrel. 
     In addition, in the first transparent area of the camera window, a shield may be disposed in at least a partial area of the surface facing the first camera. 
     In addition, in the second transparent area of the camera window, a shield may be disposed in at least a partial area of the surface facing the second camera. 
     In addition, the first decoration unit and the second decoration unit may be configured such that a partial area of the cover housing is machined by a machining body having a diameter greater than the diameters of the first decoration unit and the second decoration unit. 
     In addition, the electronic device may further include a third camera including a third camera barrel in which a third lens assembly is accommodated, the cover housing may further include a third opening corresponding to the third camera barrel of the third camera, the camera window may further include a third transparent area at a portion corresponding to the third opening and may further include a third decoration unit disposed on the inner circumference of the third opening of the cover housing and having an inclination formed on the inner circumference thereof, the diameters of the first transparent area, the second transparent area, and the third transparent area of the camera window may be the same with each other, and the diameters of the first decoration unit, the second decoration unit, and the third decoration unit may be the same with each other. 
     In addition, the third decoration unit may be ring-shaped, and the diameter of the outer circumference of the third decoration unit may be the same as the diameter of the third transparent area. 
     In addition, the electronic device may further include a third cover disposed on the inner circumference of the third decoration unit to fill at least a portion of the section between the third camera barrel and the third decoration unit, and a surface of the third cover may be anodized to be configured to have low light transmittance. 
     In addition, the first decoration unit, the second decoration unit, and the third decoration unit may be configured such that a partial area of the cover housing is machined by a machining body have a diameter greater than the diameters of the first decoration unit, the second decoration unit, and the third decoration unit. 
     A camera structure according to various embodiments disclosed herein may include a first camera including a first camera barrel in which a first lens assembly is accommodated, a second camera including a second camera barrel in which a second lens assembly is accommodated, a cover housing including a first opening corresponding to the first camera barrel of the first camera and a second opening corresponding to the second camera barrel of the second camera and disposed to substantially cover the first camera and the second camera, a camera window including a first transparent area at a portion corresponding to the first opening and a second transparent area at a portion corresponding to the second opening and disposed on the cover housing, a first decoration unit configured to have a diameter decreasing away from the camera window and disposed on the inner circumference of the first opening of the cover housing, and a second decoration unit configured to have a diameter decreasing away from the camera window and disposed on the inner circumference of the second opening of the cover housing, wherein the diameters of the first transparent area and the second transparent area of the camera window may be the same with each other, and the diameters of the first decoration unit and the second decoration unit may be the same with each other. 
     In addition, the first decoration unit and the second decoration unit may be ring-shaped, the diameter of the outer circumference of the first decoration unit may be the same as the diameter of the first transparent area of the camera window, and the diameter of the outer circumference of the second decoration unit may be the same as the diameter of the second transparent area of the camera window. 
     In addition, the camera structure may further include a first cover disposed on the inner circumference of the first decoration unit to fill at least a portion of the section between the first camera barrel and the first decoration unit. 
     In addition, the surface of the first cover may be anodized to be configured to have low light transmittance. 
     In addition, the second camera may further include an optical image stabilizer (OIS) configured to move the second camera barrel, and may further include a cover plate fitted around the second camera barrel. 
     In addition, in the second transparent area of the camera window, a shield may be disposed in at least a partial area of the surface facing the second camera. 
     In addition, the camera structure may further include a third camera including a third camera barrel in which a third lens assembly is accommodated, the cover housing may further include a third opening corresponding to the third camera barrel of the third camera, the camera window may further include a third transparent area at a portion corresponding to the third opening and may further include a third decoration unit configured to have a diameter decreasing away from the camera window to be disposed on the inner circumference of the third opening of the cover housing and a third cover disposed on the inner circumference of the third decoration unit so as to fill the space between the third camera barrel and the third decoration unit, the diameters of the first transparent area, the second transparent area, and the third transparent area of the camera window may be the same with each other, the diameters of the first decoration unit, the second decoration unit, and the third decoration unit may be the same with each other, and the surface of the third covering unit may be anodized to be configured to have low light transmittance. 
     In addition, the first decoration unit, the second decoration unit, and the third decoration unit may be configured such that a partial area of the cover housing is machined by a machining body having a diameter greater than the diameters of the first decoration unit, the second decoration unit, and the third decoration unit. 
     The embodiments disclosed in the specification and drawings in the disclosure are merely presented as specific examples to easily describe the technical contents according to the embodiments disclosed herein and to help understanding of the embodiments disclosed herein, and are not intended to limit the scope of the embodiments disclosed herein. Therefore, the scope of various embodiments disclosed herein should be construed to include, in addition to the embodiments disclosed herein, all changes or modifications derived based on the technical ideas of various embodiments disclosed herein. 
     While the disclosure has been illustrated and described with reference to various example embodiments, it will be understood that the various example embodiments are intended to be illustrative, not limiting. It will be further understood by those skilled in the art that various changes in form and detail may be made without departing from the true spirit and full scope of the disclosure, including the appended claims and their equivalents. It will also be understood that any of the embodiment(s) described herein may be used in conjunction with any other embodiment(s) described herein.