Camera module and electronic device comprising same

Abstract

According to one embodiment of the present disclosure, a camera module may comprise an image sensor, and a lens assembly for focusing or guiding light to an image sensor by including at least five lenses sequentially aligned along an optical axis from a first lens, which is farthest from the image sensor. In one embodiment, the lens assembly or the at least five lenses can include: the first lens having negative refractive power and having a meniscus shape that is convex toward an object; an (n-3)-th lens, which has positive refractive power and is disposed fourth closest to the image sensor; an (n-2)-th lens, which has negative refractive power, include a sensor-side surface having a concave shape, and is disposed third closest to the image sensor; an (n-1)-th lens, which has positive refractive power, includes a concave object-side surface and a convex sensor-side surface, and is disposed second closest to the image sensor; and an n-th lens, which has negative refractive power, has a meniscus shape convex toward the object in a paraxial region, includes at least one inflection point on at least sensor-side surface from among an object-side surface and the sensor-side surface, and is disposed closest to the image sensor. In one embodiment, the lens assembly can satisfy at least some of the disclosed conditions. Other various embodiments are also possible.

Description

Camera module and electronic device including the same

[0001] The embodiments of the present disclosure relate to electronic devices, for example, camera modules and / or electronic devices including the same.

[0002] Optical devices, such as cameras capable of capturing images or videos, have been widely used, and recently, digital cameras and video cameras equipped with solid-state image sensors, such as CCDs (charge coupled devices) or CMOS (complementary metal-oxide semiconductors), have become commonplace. Compared to film-based optical devices, optical devices employing solid-state image sensors (CCDs or CMOS) are gradually replacing film-based optical devices because they facilitate the storage, duplication, and / or transfer of images.

[0003] Recently, two or more selected from multiple optical devices, such as macro cameras, telephoto cameras, and / or wide-angle cameras, have been mounted on a single electronic device to improve the quality of captured images and to provide various visual effects to the images. For example, high-quality images can be obtained by acquiring images of a subject through multiple cameras with different optical characteristics and synthesizing them. As high-quality images are obtained by mounting multiple optical devices (e.g., cameras), electronic devices such as mobile communication terminals and smartphones are gradually replacing electronic devices specialized in shooting functions, such as digital compact cameras, and are expected to replace high-performance cameras such as digital single-lens reflex cameras (e.g., DSLRs) in the future.

[0004] The information described above may be provided as related art for the purpose of aiding understanding of the present disclosure. No claim or determination is made as to whether any of the foregoing may be applied as prior art in relation to the present disclosure.

[0005] According to one embodiment of the present disclosure, a camera module may include an image sensor and a lens assembly configured to focus or guide light to an image sensor by including at least five lenses sequentially aligned along an optical axis from a first lens furthest from the image sensor. In one embodiment, the lens assembly or the at least five lenses may include: the first lens having a negative refractive power and a meniscus shape convex toward the object; the n-3 lens having a positive refractive power and positioned fourth closest to the image sensor; the n-2 lens having a negative refractive power and a concave sensor-side surface and positioned third closest to the image sensor; the n-1 lens having a positive refractive power and a concave object-side surface and a convex sensor-side surface and positioned second closest to the image sensor; and the n lens having a negative refractive power and a meniscus shape convex toward the object in the paraxial region, and having at least one inflection point on at least the sensor-side surface among the object-side surface and the sensor-side surface and positioned closest to the image sensor. In one embodiment, the lens assembly may satisfy the following [Conditions 1, 2, 3, and 4].

[0006] [Condition 1]

[0007] TTL / (IH*2) <= 0.92

[0008] (Here, 'TTL' is the distance from the upper surface of the barrel of the lens assembly to the image sensor, and 'IH' is the maximum height of the image sensor)

[0009] [Condition 2]

[0010] 0.2 <= L1-ape / IH <= 0.4

[0011] (Here, 'L1-ape' is the effective radius of the first lens)

[0012] [Condition 3]

[0013] 110 <= FOV <= 140

[0014] (Here, 'FOV' is the angle of view of the lens assembly)

[0015] [Condition 4]

[0016] LL3T / OAL <= 0.05

[0017] (Here, the thickness of the n-2 lens is, and 'OAL' is the distance measured along the optical axis from the object side of the first lens to the sensor side of the n lens.)

[0018] According to one embodiment of the present disclosure, an electronic device may include an image sensor, a lens assembly configured to focus or guide light to an image sensor by including at least five lenses sequentially aligned along an optical axis from a first lens furthest from the image sensor, at least one processor, and a memory storing instructions configured to enable the electronic device to acquire an image of a subject using the image sensor and correct distortion through image processing based on a stereographic distortion mapping function when executed by the at least one processor. In one embodiment, the lens assembly or the at least five lenses may include: the first lens having a negative refractive power and a meniscus shape convex toward the object; the n-3 lens having a positive refractive power and positioned fourth closest to the image sensor; the n-2 lens having a negative refractive power and a concave sensor-side surface and positioned third closest to the image sensor; the n-1 lens having a positive refractive power and a concave object-side surface and a convex sensor-side surface and positioned second closest to the image sensor; and the n lens having a negative refractive power and a meniscus shape convex toward the object in the paraxial region, and having at least one inflection point on at least the sensor-side surface among the object-side surface and the sensor-side surface and positioned closest to the image sensor. In one embodiment, the lens assembly may satisfy the following [Conditions 1, 2, 3, and 4].

[0019] [Condition 1]

[0020] TTL / (IH*2) <= 0.92

[0021] (Here, 'TTL' is the distance from the upper surface of the barrel of the lens assembly to the image sensor, and 'IH' is the maximum height of the image sensor)

[0022] [Condition 2]

[0023] 0.2 <= L1-ape / IH <= 0.4

[0024] (Here, 'L1-ape' is the effective radius of the first lens)

[0025] [Condition 3]

[0026] 110 <= FOV <= 140

[0027] (Here, 'FOV' is the angle of view of the lens assembly)

[0028] [Condition 4]

[0029] LL3T / OAL <= 0.05

[0030] (Here, the thickness of the n-2 lens is, and 'OAL' is the distance measured along the optical axis from the object side of the first lens to the sensor side of the n lens.)

[0031] The aspects, configurations, and / or advantages described above regarding one embodiment of the present disclosure may become more apparent from the following detailed description with reference to the accompanying drawings.

[0032] FIG. 1 is a block diagram showing an electronic device in a network environment according to one embodiment of the present disclosure.

[0033] FIG. 2 is a block diagram illustrating a camera module according to one embodiment of the present disclosure.

[0034] FIG. 3 is a perspective view showing the front of an electronic device according to one embodiment of the present disclosure.

[0035] FIG. 4 is a perspective view showing the rear side of an electronic device illustrated in FIG. 3, according to one embodiment of the present disclosure.

[0036] FIG. 5 is a drawing showing a camera module and / or lens assembly according to one embodiment of the present disclosure.

[0037] FIG. 6 is a drawing for explaining the implementation of auto-framing in a camera module according to one embodiment of the present disclosure.

[0038] FIG. 7 is a drawing showing a camera module and / or lens assembly according to one embodiment of the present disclosure.

[0039] FIG. 8 is a graph showing the spherical aberration of the lens assembly of FIG. 7 according to one embodiment of the present disclosure.

[0040] FIG. 9 is a graph showing the astigmatism of the lens assembly of FIG. 7 according to one embodiment of the present disclosure.

[0041] FIG. 10 is a graph showing the distortion rate of the lens assembly of FIG. 7 according to one embodiment of the present disclosure.

[0042] FIG. 11 is a drawing showing a camera module and / or lens assembly according to one embodiment of the present disclosure.

[0043] FIG. 12 is a graph showing the spherical aberration of the lens assembly of FIG. 11 according to one embodiment of the present disclosure.

[0044] FIG. 13 is a graph showing the astigmatism of the lens assembly of FIG. 11 according to one embodiment of the present disclosure.

[0045] FIG. 14 is a graph showing the distortion rate of the lens assembly of FIG. 11 according to one embodiment of the present disclosure.

[0046] FIG. 15 is a drawing showing a camera module and / or lens assembly according to one embodiment of the present disclosure.

[0047] FIG. 16 is a drawing showing a camera module and / or lens assembly according to one embodiment of the present disclosure.

[0048] FIG. 17 is a graph showing the spherical aberration of the lens assembly of FIG. 16 according to one embodiment of the present disclosure.

[0049] FIG. 18 is a graph showing the astigmatism of the lens assembly of FIG. 16 according to one embodiment of the present disclosure.

[0050] FIG. 19 is a graph showing the distortion rate of the lens assembly of FIG. 16 according to one embodiment of the present disclosure.

[0051] FIG. 20 is a drawing showing a camera module and / or lens assembly according to one embodiment of the present disclosure.

[0052] FIG. 21 is a graph showing the spherical aberration of the lens assembly of FIG. 20 according to one embodiment of the present disclosure.

[0053] FIG. 22 is a graph showing the astigmatism of the lens assembly of FIG. 20 according to one embodiment of the present disclosure.

[0054] FIG. 23 is a graph showing the distortion rate of the lens assembly of FIG. 20 according to one embodiment of the present disclosure.

[0055] FIG. 24 is a drawing showing a camera module and / or lens assembly according to one embodiment of the present disclosure.

[0056] FIG. 25 is a graph showing the spherical aberration of the lens assembly of FIG. 24 according to one embodiment of the present disclosure.

[0057] FIG. 26 is a graph showing the astigmatism of the lens assembly of FIG. 24 according to one embodiment of the present disclosure.

[0058] FIG. 27 is a graph showing the distortion rate of the lens assembly of FIG. 24 according to one embodiment of the present disclosure.

[0059] FIG. 28 is a drawing for explaining the distortion rate of a camera module and / or lens assembly according to one embodiment of the present disclosure.

[0060] Throughout the attached drawings, similar parts, configurations, and / or structures may be assigned similar reference numbers.

[0061] As electronic devices become increasingly miniaturized, the conditions for ensuring optical performance when integrating camera modules into these miniaturized devices are becoming increasingly challenging. For instance, while it may be easier to improve the optical performance of a camera module by increasing the number and size of lenses, these dimensions may be limited when integrated into miniaturized devices. As user demand for more advanced optical performance grows, image sensor performance is improving through pixel count and size (e.g., image height); however, it may become increasingly difficult to miniaturize lens assemblies that meet these performance requirements.

[0062] One embodiment of the present disclosure may provide a camera module having optical performance suitable for a high-performance image sensor and / or an electronic device including the same, for at least resolving the problems and / or disadvantages described above and at least providing the advantages described below.

[0063] One embodiment of the present disclosure may provide a camera module and / or an electronic device including the same, wherein the effective diameter and / or the length of the lens of the first lens are miniaturized relative to the size of the image sensor while providing good optical performance.

[0064] One embodiment of the present disclosure may provide a camera module that provides wide-angle characteristics or ultra-wide-angle characteristics while being miniaturized, and / or an electronic device including the same.

[0065] The technical problems to be solved in this document are not limited to those mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art to which this disclosure belongs from the description below.

[0066] The following description relating to the attached drawings may provide an understanding of various exemplary embodiments of the present disclosure, including the claims and their corresponding contents. While the exemplary embodiments disclosed in the following description include various specific details to aid understanding, they are to be considered as one of various exemplary embodiments. Accordingly, those skilled in the art will understand that various changes and modifications to the various embodiments described herein may be made without departing from the scope and technical spirit of the disclosure. Additionally, for clarity and brevity, descriptions of well-known functions and configurations may be omitted.

[0067] The terms and words used in the following description and claims are not limited to their literal meanings but may be used to clearly and consistently describe an embodiment of the present disclosure. Accordingly, it will be apparent to a person skilled in the art that the following description of various embodiments of the disclosure is provided for illustrative purposes, not for the purpose of limiting the scope of the rights or the disclosure defined as equivalent thereto.

[0068] Unless the context clearly indicates otherwise, it should be understood that the singular forms of "a," "an," and "the" include a plural meaning. Thus, for example, "component surface" can be understood to include one or more of the component surfaces.

[0069] FIG. 1 is a block diagram of an electronic device (101) in 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 an electronic device (102) through a first network (198) (e.g., a short-range wireless communication network) or may communicate with at least one of an electronic device (104) or a server (108) through a second network (199) (e.g., a long-range wireless communication network). According to one embodiment, the electronic device (101) may communicate with the electronic device (104) through a server (108). According to one embodiment, the electronic device (101) may include a processor (120), memory (130), input module (150), sound output module (155), display module (160), audio module (170), sensor module (176), interface (177), connection terminal (178), haptic module (179), camera module (180), power management module (188), battery (189), communication module (190), subscriber identification module (196), or antenna module (197). In one embodiment, at least one of these components (e.g., connection terminal (178)) may be omitted from the electronic device (101), or one or more other components may be added. In one embodiment, some of these components (e.g., sensor module (176), camera module (180), or antenna module (197)) may be integrated into a single component (e.g., display module (160)).

[0070] The processor (120) can control at least one other component (e.g., hardware or software component) of the electronic device (101) connected to the processor (120) by executing software (e.g., program (140)), for example, and can perform various data processing or operations. According to one embodiment, as at least part of the data processing or operations, the processor (120) can store commands or data received from other components (e.g., sensor module (176) or communication module (190)) in volatile memory (132), process the commands or data stored in volatile memory (132), and store the resulting data in non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., central processing unit or application processor) or an auxiliary processor (123) that can operate independently or together with it (e.g., graphics processing unit, neural processing unit (NPU), image signal processor, sensor hub processor, or communication processor). For example, if the electronic device (101) includes a main processor (121) and an auxiliary processor (123), the auxiliary processor (123) may be configured to use lower power than the main processor (121) or to be specialized for a designated function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as part thereof.

[0071] The auxiliary processor (123) may control at least some of the functions or states associated with at least one component of the electronic device (101) (e.g., display module (160), sensor module (176), or communication module (190)) 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. According to one embodiment, the auxiliary processor (123) (e.g., image signal processor or communication processor) may be implemented as part of another functionally related component (e.g., camera module (180) or communication module (190)). According to one embodiment, the auxiliary processor (123) (e.g., neural network processing unit) may include a hardware structure specialized for processing an artificial intelligence model. The artificial intelligence model may be generated through machine learning. Such learning may be performed, for example, on the electronic device (101) itself where the artificial intelligence model is executed, or through a separate server (e.g., server (108)). The learning algorithm may 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 may include a plurality of artificial neural network layers.An 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), 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 the hardware structure, the artificial intelligence model may include a software structure, either additionally or substantially.

[0072] The memory (130) can store various data used by at least one component of the electronic device (101) (e.g., processor (120) or sensor module (176)). The data may include, for example, software (e.g., program (140)) and input data or output data for related commands. The memory (130) may include volatile memory (132) or non-volatile memory (134).

[0073] The program (140) may be stored as software in memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0074] The input module (150) can receive commands or data to be used for a component of the electronic device (101) (e.g., processor (120)) from outside the electronic device (101) (e.g., user). 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).

[0075] The sound output module (155) can output a sound signal 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 multimedia playback or recording playback. The receiver may be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part thereof.

[0076] The display module (160) can visually provide information to an external (e.g., 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 said 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 the force generated by said touch.

[0077] The audio module (170) can convert sound into an electrical signal or, conversely, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150) or output sound through the sound output module (155) or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphones) that is directly or wirelessly connected to the electronic device (101).

[0078] The sensor module (176) can detect the operating state of the electronic device (101) (e.g., power or temperature) or the external environmental state (e.g., user state) and generate an electrical signal or data value corresponding to the detected state. According to one embodiment, the sensor module (176) may include, for example, a gesture sensor, a gyroscope sensor, a barometric pressure sensor, a magnetic sensor, an accelerometer sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biosensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0079] The interface (177) may support one or more specified protocols that can be used for the electronic device (101) to be connected directly or wirelessly to an external electronic device (e.g., electronic device (102)). According to 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.

[0080] The connection terminal (178) may include a connector through which the electronic device (101) can 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).

[0081] The haptic module (179) can convert an electrical signal into a mechanical stimulus (e.g., vibration or movement) or an electrical stimulus that can be perceived by the user through tactile or kinesthetic senses. According to one embodiment, the haptic module (179) may include, for example, a motor, a piezoelectric element, or an electric stimulation device.

[0082] The camera module (180) can capture still images and video. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0083] 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, for example, as at least part of a power management integrated circuit (PMIC).

[0084] The battery (189) can supply power to at least one component of the electronic device (101). According to one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0085] The communication module (190) can support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between an 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 include one or more communication processors that operate independently of the processor (120) (e.g., application processor) and 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., cellular communication module, short-range wireless communication module, or GNSS (global navigation satellite system) communication module) or a wired communication module (194) (e.g., LAN (local area network) communication module, or power line communication module). The corresponding communication module among these communication modules can communicate with an external electronic device through a first network (198) (e.g., a short-range communication network such as Bluetooth, WiFi (wireless fidelity) direct, or IrDA (infrared data association)) or a second network (199) (e.g., 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 may 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 identify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) using subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module (196).

[0086] The wireless communication module (192) can support 5G networks and next-generation communication technologies following 4G networks, for example, new radio access technology. NR access technology can support high-speed transmission of high-capacity data (enhanced mobile broadband (eMBB)), minimization of terminal power and connection of multiple terminals (massive machine type communications (mMTC)), or high reliability and low latency (ultra-reliable and low-latency communications (URLLC)). The wireless communication module (192) can support a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate, for example. The wireless communication module (192) can support various technologies for securing performance in the high-frequency band, such as beamforming, massive MIMO (multiple-input and multiple-output), full-dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large-scale antenna. The wireless communication module (192) can support various requirements specified by the electronic device (101), an external electronic device (e.g., electronic device (104)), or a network system (e.g., a second network (199)). According to one embodiment, the wireless communication module (192) may support a Peak data rate (e.g., 20 Gbps or more) for eMBB realization, loss coverage (e.g., 164 dB or less) for mMTC realization, or U-plane latency (e.g., downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) for URLLC realization.

[0087] An antenna module (197) can transmit a signal or power to or from an external source (e.g., an external electronic device). According to one embodiment, the antenna module may include an antenna comprising a radiator made of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). According to 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 a first network (198) or a second network (199), may be selected from the plurality of antennas, for example, by a communication module (190). The signal or power may be transmitted or received between the communication module (190) and an external electronic device through the selected at least one antenna. According to one embodiment, in addition to the radiator, other components (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as part of the antenna module (197).

[0088] According to one embodiment, the antenna module (197) may form a mmWave antenna module. According to one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent to a first surface (e.g., bottom surface) of the printed circuit board and capable of supporting a specified high frequency band (e.g., mmWave band), and a plurality of antennas (e.g., array antennas) disposed on or adjacent to a second surface (e.g., top surface or side surface) of the printed circuit board and capable of transmitting or receiving a signal of the specified high frequency band.

[0089] At least some of the above components can be connected to each other via a communication method between peripheral devices (e.g., bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)) and exchange signals (e.g., commands or data) with each other.

[0090] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) through 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 performed on the electronic device (101) may be performed on one or more of the external electronic devices (102, 104 or 108). For example, if the electronic device (101) needs to perform a function or service automatically or in response to a request from a user or another device, the electronic device (101) may request one or more external electronic devices to perform at least part of the function or service instead of performing the function or service itself or additionally. One or more external electronic devices that receive the above request may execute at least part of the requested function or service, or 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 provide the result as is or additionally processed as at least part of the response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device (101) may provide ultra-low latency services using, for example, distributed computing or mobile edge computing. In one 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 neural networks. According to one embodiment, the external electronic device (104) or the server (108) may be included within 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.

[0091] FIG. 2 is a block diagram (200) illustrating a camera module (280) (e.g., camera module (180) of FIG. 1) according to one embodiment of the present disclosure. Referring to FIG. 2, the camera module (280) may include a lens assembly (210), a flash (220), an image sensor (230), an image stabilizer (240), a memory (250) (e.g., a buffer memory), or an image signal processor (260). In one embodiment, the lens assembly (210) may include an image sensor (230). The lens assembly (210) may collect light emitted from a subject that is the target of image capture. The lens assembly (210) may include one or more lenses. According to one embodiment, the camera module (280) may include a plurality of lens assemblies (210). In this case, the camera module (280) may form, for example, a dual camera, a 360-degree camera, or a spherical camera. Some of the plurality of lens assemblies (210) may have the same lens properties (e.g., angle of view, focal length, autofocus, F-number, or optical zoom), or at least one lens assembly may have one or more lens properties different from the lens properties of the other lens assemblies. The lens assembly (210) may include, for example, a wide-angle lens or a telephoto lens.

[0092] A flash (220) may emit light used to enhance light emitted or reflected from a subject. According to one embodiment, the flash (220) may include one or more light-emitting diodes (e.g., RGB (red-green-blue) LED, white LED, infrared LED, or ultraviolet LED), or a xenon lamp. An image sensor (230) may acquire an image corresponding to the subject by converting light emitted or reflected from the subject and transmitted through a lens assembly (210) into an electrical signal. According to one embodiment, the image sensor (230) may include, for example, one image sensor selected from image sensors with different properties such as an RGB sensor, a BW (black and white) sensor, an IR sensor, or a UV sensor, a plurality of image sensors having the same properties, or a plurality of image sensors having different properties. Each image sensor included in the image sensor (230) may be implemented using, for example, a CCD (charged coupled device) sensor or a CMOS (complementary metal oxide semiconductor) sensor.

[0093] The image stabilizer (240) may move at least one lens or image sensor (230) included in the lens assembly (210) in a specific direction or control the operational characteristics of the image sensor (230) (e.g., adjusting read-out timing, etc.) in response to the movement of the camera module (280) or the electronic device (201) including it. This allows for compensating for at least some of the negative effects caused by the movement on the image being captured. According to one embodiment, the image stabilizer (240) may detect such movement of the camera module (280) or the electronic device (e.g., the electronic device (101) of FIG. 1) using a gyroscope sensor (not shown) or an accelerometer sensor (not shown) placed inside or outside the camera module (280). According to one embodiment, the image stabilizer (240) may be implemented, for example, as an optical image stabilizer. The memory (250) may temporarily store at least a portion of an image acquired through the image sensor (230) for the next image processing operation. For example, if image acquisition by the shutter is delayed or multiple images are acquired at high speed, the acquired original image (e.g., a Bayer-patterned image or a high-resolution image) is stored in the memory (250), and a corresponding copy image (e.g., a low-resolution image) can be previewed through the display module (160) of FIG. 1. Subsequently, when a specified condition is satisfied (e.g., user input or system command), at least a portion of the original image stored in the memory (250) may be acquired and processed by, for example, an image signal processor (260). According to one embodiment, the memory (250) may be configured as at least a portion of the memory (e.g., the memory (130) of FIG. 1) or as a separate memory that operates independently thereof.

[0094] The image signal processor (260) can perform one or more image processing operations on an image obtained through the image sensor (230) or an image stored in memory (250). The above one or more image processing methods may include, for example, depth map generation, 3D modeling, panorama generation, feature point extraction, image synthesis, or image compensation (e.g., noise reduction, resolution adjustment, brightness adjustment, blurring, sharpening, or softing). Additionally or generally, the image signal processor (260) may perform control (e.g., exposure time control, or readout timing control, etc.) over at least one of the components included in the camera module (280) (e.g., image sensor (230)). The image processed by the image signal processor (260) may be stored back in memory (250) for further processing or provided to an external component of the camera module (280) (e.g., memory (130) of FIG. 1, display module (160), electronic device (102), electronic device (104), or server (108)). According to one embodiment, the image signal processor (260) may be a processor (e.g., of FIG. 1 It may be configured as at least part of the processor (120) or as a separate processor that operates independently of the processor (120). If the image signal processor (260) is configured as a separate processor from the processor (120), at least one image processed by the image signal processor (260) may be displayed through the display module (160) as is or after additional image processing by the processor (120).

[0095] According to one embodiment, an electronic device (e.g., the electronic device (101) of FIG. 1) may include a plurality of camera modules (280) each having different attributes or functions. In this case, for example, at least one of the plurality of camera modules (280) may be a wide-angle camera and at least another may be a telephoto camera. Similarly, at least one of the plurality of camera modules (280) may be a front camera and at least another may be a rear camera.

[0096] The electronic device according to the embodiment(s) of the present disclosure may be of various forms. The electronic device may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a consumer electronics device. The electronic device according to the embodiment of the present document is not limited to the devices described above.

[0097] The embodiment(s) and the terms used in this document are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of said 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 said items unless the relevant context clearly indicates 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” each may 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 said components from other said components and do not limit said components in any other aspect (e.g., importance or order). Where any (e.g., 1st) component is referred to as “coupled” or “connected” to another (e.g., 2nd) component, with or without the terms “functionally” or “communicationly,” it means that said any component may be connected to said other component directly (e.g., via a wire), wirelessly, or through a third component.

[0098] The term “module” as used in the various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit, for example. A module may be a component formed integrally, or a minimum unit of said component or a part thereof 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).

[0099] Various embodiments of this document may be implemented as software (e.g., a program) comprising one or more instructions stored in a storage medium (e.g., internal 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 of the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code that can be executed by an interpreter. The storage medium readable by the machine may be provided in the form of a non-transitory storage medium. Here, "non-transitory" simply means that the storage medium is a tangible device and does not contain 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.

[0100] According to one embodiment, the method according to various embodiments of the present disclosure may be provided by being included in a computer program product. The computer program product may be traded between a seller and a buyer 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 an application store (e.g., Play Store). TM It can be distributed online (e.g., downloaded or uploaded) through ) or directly between two user devices (e.g., smartphones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily created on a device-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

[0101] According to the embodiments, each component (e.g., module or program) of the components described above may include a singular or multiple entities, and some of the multiple entities may be separated and placed in other components. According to the embodiments, one or more of the components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Generally or additionally, multiple components (e.g., module or program) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the multiple components in the same or similar manner as those performed by the corresponding component among the multiple components prior to the integration. According to the embodiments, operations performed by the module, program, or other components 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.

[0102] In the following detailed description, the length direction, width direction, and / or thickness direction of the electronic device may be referred to, and the length 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, regarding the direction in which the component is oriented, 'negative / positive (- / +)' may be referred to together with the Cartesian coordinate system illustrated in the drawings. For example, the front of the electronic device and / or housing may be defined as the 'face facing the +Z direction', and the rear may be defined as the 'face facing the -Z direction'. In one embodiment, the side of the electronic device and / or housing may include an area facing the +X direction, an area facing the +Y direction, an area facing the -X direction, and / or an area 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 Cartesian coordinate system described 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 the present disclosure.

[0103] FIG. 3 is a perspective view showing the front of an electronic device (300) (e.g., the electronic device (101) of FIG. 1) according to one embodiment of the present disclosure. FIG. 4 is a perspective view showing the rear of the electronic device (300) shown in FIG. 3 according to one embodiment of the present disclosure.

[0104] Referring to FIGS. 3 and 4, an electronic device (300) according to one embodiment (e.g., the electronic device (101) of FIG. 1) may include a housing (310) comprising a first surface (or front) (310A), a second surface (or rear) (310B), and a side (310C) surrounding the space between the first surface (310A) and the second surface (310B). In one embodiment (not shown), the housing (310) may refer to a structure forming some of the first surface (310A), the second surface (310B), and the side (310C) of FIG. 3. According to one embodiment, the first surface (310A) may be formed by a front plate (302) (e.g., a glass plate or a polymer plate having various coating layers) in which at least a portion is substantially transparent. In one embodiment, the front plate (302) may be coupled to the housing (310) to form an internal space together with the housing (310). In one embodiment, the term 'internal space' may refer to an internal space of the housing (310) that accommodates at least a portion of the display (301) described later or the display module (160) of FIG. 1.

[0105] According to one embodiment, the second surface (310B) may be formed by a substantially opaque back plate (311). The back plate (311) may be formed by, 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 materials. The side surface (310C) may be formed by a side bezel structure (or "side structure") (318) comprising a metal and / or polymer, which is combined with the front plate (302) and the back plate (311). In one embodiment, the back plate (311) and the side bezel structure (318) may be formed integrally and may comprise the same material (e.g., a metallic material such as aluminum).

[0106] In the illustrated embodiment, the front plate (302) may include two first regions (310D) that curve seamlessly extend from the first surface (310A) toward the rear plate (311) at both ends of the long edge of the front plate (302). In the illustrated embodiment (see FIG. 4), the rear plate (311) may include two second regions (310E) that curve seamlessly extend from the second surface (310B) toward the front plate (302) at both ends of the long edge. In one embodiment, the front plate (302) (or the rear plate (311)) may include only one of the first regions (310D) (or the second regions (310E)). In one embodiment, some of the first regions (310D) or the second regions (310E) may not be included. In the above embodiments, when viewed from the side of the electronic device (300), the side bezel structure (318) may have a first thickness (or width) on the side that does not include the first region (310D) or the second region (310E) as described above (e.g., the side where the connector hole (308) is formed), and may have a second thickness that is thinner than the first thickness on the side that includes the first region (310D) or the second region (310E) (e.g., the side where the key input device (317) is placed).

[0107] According to one embodiment, the electronic device (300) may include at least one of a display (301), an audio module (303, 307, 314), a sensor module (304, 316, 319), a camera module (305, 312, 313) (e.g., the camera module (180, 280) of FIG. 1 or FIG. 2), a key input device (317), a light-emitting element (306), and a connector hole (308, 309). In one embodiment, the electronic device (300) may omit at least one of the components (e.g., the key input device (317), or the light-emitting element (306)) or additionally include other components.

[0108] A display (301) (e.g., a display module (160) of FIG. 1) may be visually exposed, for example, through a significant portion of a front plate (302). In one embodiment, at least a portion of the display (301) may be visually exposed through a front plate (302) forming the first surface (310A) and the first area (310D) of the side (310C). In one embodiment, the corners of the display (301) may be formed to be largely identical to the adjacent outer shape of the front plate (302). In one embodiment (not shown), to expand the area where the display (301) is visually exposed, the gap between the outer edge of the display (301) and the outer edge of the front plate (302) may be formed to be largely identical.

[0109] In one embodiment (not shown), a recess or opening is formed in a part of the screen display area (e.g., active area) or an area outside the screen display area (e.g., inactive area) of the display (301), and at least one of an audio module (314) (e.g., audio module (170) of FIG. 1), a sensor module (304) (e.g., sensor module (176) of FIG. 1), a camera module (305), and a light-emitting element (306) may be included that are aligned with the recess or the opening. In one embodiment (not shown), at least one of an audio module (314), a sensor module (304), a camera module (305) (e.g., under display camera (UDC)), a sensor module (316) (e.g., fingerprint sensor), and a light-emitting element (306) may be included on the back surface of the screen display area of ​​the display (301). In one embodiment (not shown), the display (301) may be combined with or adjacent to a touch detection circuit, a pressure sensor capable of measuring the intensity (pressure) of the touch, and / or a digitizer capable of detecting a magnetic field type stylus pen. In one embodiment, at least a portion of the sensor module (304, 319) and / or at least a portion of the key input device (317) may be placed in the first areas (310D) and / or the second areas (310E).

[0110] The audio module (303, 307, 314) may include a microphone hole (303) and a speaker hole (307, 314). A microphone for acquiring external sound may be placed inside the microphone hole (303), and in one embodiment, a plurality of microphones may be placed to detect the direction of sound. The speaker hole (307, 314) may include an external speaker hole (307) and a receiver hole (314) for calls. In one embodiment, the speaker hole (307, 314) and the microphone hole (303) may be implemented as a single hole, or a speaker may be included without the speaker hole (307, 314) (e.g., a piezo speaker).

[0111] The sensor modules (304, 316, 319) can generate electrical signals or data values ​​corresponding to the internal operating state of the electronic device (300) or the external environmental state. The sensor modules (304, 316, 319) may include, for example, a first sensor module (304) (e.g., proximity sensor) and / or a second sensor module (not shown) (e.g., fingerprint sensor) disposed on the first surface (310A) of the housing (310), and / or a third sensor module (319) (e.g., HRM sensor) and / or a fourth sensor module (316) (e.g., fingerprint sensor) disposed on the second surface (310B) of the housing (310). The fingerprint sensor may be disposed on the second surface (310B) as well as on the first surface (310A) (e.g., display (301)) of the housing (310). The electronic device (300) may further include at least one of an unillustrated sensor module, for example, a gesture sensor, a gyroscope sensor, a barometric pressure sensor, a magnetic sensor, an accelerometer sensor, a grip sensor, a color sensor, an IR (infrared) sensor, a biosensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0112] The camera module (305, 312, 313) may include a first camera device (305) disposed on a first surface (310A) of the electronic device (300), and a second camera device (312) and / or a flash (313) disposed on a second surface (310B). The camera module (305, 312) may include one or more lenses, an image sensor and / or an image signal processor. The flash (313) 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 surface of the electronic device (300).

[0113] A key input device (317) may be disposed on a side (310C) of the housing (310). In one embodiment, the electronic device (300) may not include some or all of the aforementioned key input devices (317), and the key input devices (317) that are not included may be implemented in other forms, such as soft keys, on the display (301). In one embodiment, the key input device may include a sensor module (316) disposed on a second side (310B) of the housing (310).

[0114] A light-emitting element (306) may be disposed, for example, on a first surface (310A) of a housing (310). The light-emitting element (306) may, for example, provide state information of an electronic device (300) in the form of light. In one embodiment, the light-emitting element (306) may, for example, provide a light source that is coupled with the operation of a camera module (305). The light-emitting element (306) may include, for example, an LED, an IR LED, and a xenon lamp.

[0115] The connector holes (308, 309) may include a first connector hole (308) capable of receiving a connector (e.g., a USB connector) for transmitting and receiving power and / or data with an external electronic device, and a second connector hole (e.g., an earphone jack) (309) capable of receiving a connector for transmitting and receiving audio signals with an external electronic device.

[0116] In examining the following embodiments, the electronic device (101, 102, 104, 300) and / or camera module (180, 280, 305, 312, 313) of the above-described embodiment may be referenced. The camera module (400, 500, 600, 700, 800, 900, 1000) of the embodiments described later may implement at least one part or all of the above-described camera module (180, 280, 305, 312, 313).

[0117] FIG. 5 is a drawing showing a camera module (400) and / or a lens assembly (LA) according to one embodiment of the present disclosure.

[0118] Referring to FIG. 5, a camera module (400) (e.g., camera modules of FIGS. 1 through 4 (180, 280, 305, 312, 313)) comprises a lens assembly (LA) and an image sensor (I), wherein the image sensor (I) can detect light focused or guided by the lens assembly (LA). Here, "detecting light" can be understood, for example, as detecting information that forms the basis for acquiring an image of a subject. In one embodiment, the lens assembly (LA) may include at least five lenses (e.g., five lenses (L1, L2, L3, L4, L5) or six lenses (L1, L2, L3, L4, L5, L6)) aligned along an optical axis (O). In one embodiment, the camera module (400) and / or the lens assembly (LA) may include a barrel (B). The barrel (B) may be a structure for arranging or aligning lenses (L1, L2, L3, L4, L5, L6), for example. Although not given a reference number, at least one spacer may be placed to align the positions of the lenses (L1, L2, L3, L4, L5, L6) inside the barrel (B) and to prevent direct contact between two adjacent lenses (L1, L2, L3, L4, L5, L6).

[0119] According to one embodiment, although not illustrated, a driving structure may be provided inside the barrel (B) to reciprocate linearly with at least one of the lenses (L1, L2, L3, L4, L5, L6). The driving structure may, for example, reciprocate along the optical axis (O) or move horizontally in a plane substantially perpendicular to the optical axis (O). In one embodiment, the driving structure may be provided outside the barrel (B). For example, the barrel (B) or the entire lens assembly (LA) may reciprocate along the optical axis (O) or move horizontally in a plane substantially perpendicular to the optical axis (O). The reciprocating or horizontal movement of at least one of the lenses (L1, L2, L3, L4, L5, L6), the barrel (B), or the entire lens assembly (LA) may refer, for example, to focus adjustment, focal length adjustment, and / or image stabilization operations.

[0120] According to one embodiment, at least six lenses (L1, L2, L3, L4, L5, L6) may include a first lens (L1) positioned furthest from the image sensor (I), a second lens (L2) positioned between the first lens (L1) and the image sensor (I), a third lens (L3) positioned between the second lens (L2) and the image sensor (I), a fourth lens (L4) positioned between the third lens (L3) and the image sensor (I), a fifth lens (L5) positioned between the fourth lens (L4) and the image sensor (I), and / or a sixth lens (L6) positioned between the fifth lens (L5) and the image sensor (I). In one embodiment, the image sensor (I) can detect light focused or guided by a lens assembly (LA) (e.g., at least six lenses (L1, L2, L3, L4, L5, L6)) using an imaging plane (img). For example, the imaging plane (img) can be understood as the active area of ​​the image sensor (I).

[0121] In the illustrated embodiment, the phrases “arranged sequentially from the side of the object (e.g., object (S) in FIG. 7) toward the side of the image sensor (I)” or “aligned along the optical axis (O)” may refer to the lenses (L1, L2, L3, L4, L5, L6) being arranged sequentially from the side of the object (S) toward the image sensor (I). In the embodiment described below, the ordinal numbers assigned to the lenses (L1, L2, L3, L4, L5), “first,” “second,” “third,” “fourth,” “fifth,” and / or “sixth” may refer to the order in which they are arranged in the direction toward the image sensor (I) from the side of the object (S). In one embodiment, the first lens (L1) may be referred to as the "first lens on the object (S) side" or the "lens positioned furthest from the image sensor (I)," and the sixth lens (L6) may be referred to as the "first lens on the image sensor (I) side" or the "lens positioned closest to the image sensor (I)." In one embodiment, the image sensor (I) (e.g., the imaging plane (img)) may be aligned facing the lenses (L1, L2, L3, L4, L5, L6)(s) on the optical axis (O). The imaging plane (img) may receive or detect light aligned or focused by the lenses (L1, L2, L3, L4, L5, L6), for example.

[0122] According to one embodiment, an optical component such as an infrared blocking filter (F) may be disposed between any one of at least six lenses (L1, L2, L3, L4, L5, L6) and an image sensor (I). This infrared blocking filter (F) may be disposed between the sixth lens (L6) and the image sensor (I). The infrared blocking filter (F) may suppress or block light of a wavelength (e.g., infrared) that is not visible to the user's naked eye but is detected by a photosensitive material or the image sensor (I) from being incident on the image sensor (I). Depending on the use of the camera module (400), the infrared blocking filter (F) may be replaced with a band-pass filter that transmits infrared light and suppresses or blocks visible light. In one embodiment, the infrared blocking filter (F) may be implemented by a coating material disposed on the surface of any one of the lenses (L1, L2, L3, L4, L5, L6).

[0123] According to one embodiment, as will be seen with reference to embodiments such as FIG. 7, the camera module (400) and / or lens assembly (LA) may include an aperture (e.g., aperture (sto) of FIG. 7) positioned between the first lens (L1) and the sixth lens (L6). In the embodiment of FIG. 7, the aperture may be understood to be positioned between the first lens (L1) and the second lens (L2). In one embodiment, the aperture may be positioned in front of the first lens (L1) or behind the sixth lens (L6). Here, "positioned in front of the first lens (L1)" may refer to the first lens (L1) being positioned between the aperture (sto) and the image sensor (I). In one embodiment, "positioned behind the sixth lens (L6)" may refer to the aperture (sto) being positioned between the sixth lens (L6) and the image sensor (I). In the embodiments described below, it may be mentioned that the aperture is positioned between the n-th lens and the n+1-th lens (wherein 'n' is a natural number). This may refer to the aperture being positioned in the gap or space between the n-th lens and the n+1-th lens. In one embodiment, "positioned between the n-th lens and the n+1-th lens" may be understood to include a structure positioned on the sensor side of the n-th lens or on the object side of the n+1-th lens.

[0124] According to one embodiment, FIG. 5 may illustrate variables for describing the manufacturing specifications of a camera module (400) and / or a lens assembly (LA). For example, 'TTL (total track length)' may be an example of the total track length of the lens, and may be the distance from the upper surface (TS) of the barrel (B) that mounts or supports the lenses (L1, L2, L3, L4, L5, L6) to the image sensor (I) (e.g., the imaging plane (img)) measured parallel to the optical axis (O). In one embodiment, 'OAL (overall length)' may be understood as the distance from the vertex of the object-side surface (e.g., the surface indicated as 'S2' in FIG. 7) of the first lens (L1) to the image sensor (I) (e.g., the imaging plane (img)) measured parallel to the optical axis (O). Here, the term 'object-side vertex' or the 'sensor-side vertex' described later may refer to a point where the optical axis (O) intersects the object-side or sensor-side of the lens being mentioned. In one embodiment, 'L1-ape' may exemplify the effective radius of the first lens (L1) and can be understood as the radius of the area through which light incident on the image sensor (I) passes through the first lens (L1). The effective radius may be measured, for example, along a direction perpendicular to the optical axis (O) from the optical axis (O). In one embodiment, the variable indicated by 'TA' refers to the distance from the object-side vertex of the first lens (L1) (e.g., the surface indicated by 'S2' in FIG. 7) to the sensor-side vertex of the sixth lens (L6) (e.g., the surface indicated by 'S14' in FIG. 7), and may exemplify a distance measured from the optical axis (O). In one embodiment, 'IH' may exemplify the maximum image height of the image sensor (I). The image height of the image sensor (I) may refer to the distance measured perpendicular to the optical axis (O) from a point intersecting the optical axis (O) in the active area (e.g., the imaging plane (img)).The maximum image height, IH, of the image sensor (I) may be, for example, half the diagonal length of the image plane (img). Unless otherwise noted, the variable(s) mentioned in the embodiments described below may be understood by referring to the embodiment of FIG. 5.

[0125] According to one embodiment, it can be understood that the lower the aberration or distortion rate, the better or superior the optical performance. For example, the distortion rate in a field generally approaching the maximum image height can be controlled to a range of approximately + / - 20%. In one embodiment of the present disclosure, the distortion rate in a field approaching the maximum image height may be allowed to exceed a range of approximately + / - 30% so as to increase the small head effect (e.g., miniaturization of the lens assembly (LA) or the first lens (L1)). In one embodiment, the small head effect may be further increased by the selection of the shape or material of the lens(s) and / or by reducing the air gap between the first lens (L1) and the second lens (L2).

[0126] According to one embodiment, an electronic device (e.g., the electronic device (101, 300) of FIG. 1 or FIG. 3) and / or a camera module (400) can have good wide-angle performance by using a stereographic distortion mapping function during auto-framing. In one embodiment, the stereographic distortion mapping function is It can be, where y represents the image height, f represents the combined focal length, and θ represents the angle of incidence of light relative to the optical axis.

[0127] Generally, for wide-angle or ultra-wide lenses, the angle of view per unit pixel in the marginal portion of the lens may be narrower compared to the chief portion of the lens. Therefore, when auto-framing the marginal portion of the lens, more pixels may need to be used compared to the chief portion to represent the same angle of view. For example, depending on the specifications of the lens (e.g., lens assembly (400)), the angle of view per unit pixel in the marginal portion may be half that of the chief portion. In the embodiment(s) of the present disclosure, a stereographic distortion mapping function is used to set the angle of view per unit pixel in the marginal portion to be similar to the angle of view per unit pixel in the chief portion, thereby obtaining an effect favorable to auto-framing. This will be examined further with reference to FIG. 6.

[0128] FIG. 6 is a drawing for explaining the implementation of auto-framing in a camera module according to one embodiment of the present disclosure.

[0129] According to one embodiment, auto-framing with a wider imaging area can be implemented by using a stereographic distortion mapping function. Referring further to FIG. 6, when an image sensor acquires an image, for example, when cropping the image at a 4:3 ratio, the image sensor can utilize pixels of an imaging area (img1) having a diagonal length of 2a within an image sensor (IS) having a long side of 2a and a short side of 2b as shown in FIG. 6, and output the image. Alternatively, according to the embodiment(s) of the present disclosure, the image can be cropped by a circular imaging area (img2) with the long side length of the sensor as the diameter from the center of the sensor. For example, compared to the imaging area (img1) of a general cropping method, an additional imaging area (EX) as shown in FIG. 6 can be secured, thereby providing the advantage of securing a wider wide-angle image. In this way, by using a stereographic distortion mapping function during auto-framing, information obtained from light incident on the periphery is not compressed much, so it can be easy to increase peripheral resolution during ultra-wide-angle auto-framing.

[0130] FIG. 7 is a drawing showing a camera module (500) and / or a lens assembly (LA) according to one embodiment of the present disclosure. FIG. 8 is a graph showing spherical aberration of the lens assembly (LA) of FIG. 7 according to one embodiment of the present disclosure. FIG. 9 is a graph showing astigmatism of the lens assembly (LA) of FIG. 7 according to one embodiment of the present disclosure. FIG. 10 is a graph showing the distortion rate of the lens assembly (LA) of FIG. 7 according to one embodiment of the present disclosure.

[0131] FIG. 8 is a graph showing spherical aberration of a camera module (500) and / or lens assembly (LA) according to one embodiment of the present disclosure, wherein the horizontal axis represents the coefficient of longitudinal spherical aberration and the vertical axis represents the distance from the optical axis normalized, and the change in longitudinal spherical aberration according to the wavelength of light is shown. Longitudinal spherical aberration is shown for light with wavelengths of, for example, 656.2725 (NM, nanometer), 587.5618 (NM), 546.0740 (NM), 486.1372 (NM), and 435.8343 (NM), respectively. FIG. 9 is a graph showing the astigmatism of a camera module (500) and / or lens assembly (LA) according to one embodiment of the present disclosure, for light with a wavelength of 546.0740 (NM), where 'X' or 'S' is an example of a sagittal plane as a solid line and 'Y' or 'T' is an example of a tangential plane (or meridional plane) as a dotted line. FIG. 10 is a graph showing the distortion rate of a camera module (500) and / or lens assembly (LA) according to one embodiment of the present disclosure, for light with a wavelength of 546.0740 (NM). The refractive index of the lens(s) mentioned in the embodiments described below may refer to the refractive index for light with a wavelength of approximately 587.5618 nm.

[0132] In the detailed description of the embodiment(s) of the present disclosure, the terms “concave” or “convex” regarding the object-side or sensor-side surfaces of the lenses (L1, L2, L3, L4, L5, L6) may refer to the shape of the lens surface at a point intersecting the optical axis (O) or in a paraxial region intersecting the optical axis (O). The shape referred to as “concave” may refer to the lens surface forming a curved shape in which the lens thickness decreases as it approaches the optical axis (O) in the paraxial region. The shape referred to as “convex” may refer to the lens surface forming a curved shape in which the lens thickness increases as it approaches the optical axis (O) in the paraxial region. In one embodiment, when the object-side surface or the sensor-side surface includes an inflection point (IP), the negative / positive of the radius of curvature of the paraxial region and the surrounding region may be reversed. In this case, regarding the concaveness or convexity of the lens surface shape, a portion of the lens surface may be specified and referred to.

[0133] According to one embodiment, among at least six lenses (L1, L2, L3, L4, L5, L6), the first lens (L1) may have a meniscus shape that is convex toward the object (S), as previously mentioned, as the first lens on the object (S) side or the lens furthest from the image sensor (I). In one embodiment, the first lens (L1) may have negative refractive power. In one embodiment, the first lens (L1) may be an aspherical lens. In one embodiment, the first lens (L1) may be a plastic lens and have a refractive index of approximately 1.55 or less (e.g., approximately 1.54). In FIG. 7, the object-side surface of the first lens (L1) may be indicated as 'S2', and the sensor-side surface of the first lens (L1) may be indicated as 'S3'.

[0134] According to one embodiment, among at least six lenses (L1, L2, L3, L4, L5, L6), the second lens (L2) may be positioned closest to the first lens (L1) and between the first lens (L1) and the image sensor (I). In one embodiment, the second lens (L2) may have a negative refractive power. The second lens (L2) may be, for example, a plastic lens and an aspherical lens. The material or shape of the second lens (L2) may vary depending on the manufacturing specifications of the camera module (500) and / or the lens assembly (LA). In FIG. 7, the object side of the second lens (L2) may be indicated as 'S5', and the sensor side of the second lens (L2) may be indicated as 'S6'.

[0135] According to one embodiment, among at least six lenses (L1, L2, L3, L4, L5, L6), the third lens (L3) is positioned between the second lens (L2) and the image sensor (I) and may have a biconvex shape. For example, the third lens (L3) may include a convex object-side surface (S7) and a convex sensor-side surface (S8). In one embodiment, the third lens (L3) may have positive refractive power. In one embodiment, the third lens (L3) may have a refractive index of approximately 1.55 or less (e.g., in the range of approximately 1.53 to approximately 1.54). In one embodiment, the third lens (L3) may be a plastic lens and an aspherical lens. In FIG. 7, the object-side surface of the third lens (L3) may be indicated as 'S7', and the sensor-side surface of the third lens (L3) may be indicated as 'S8'.

[0136] According to one embodiment, among at least six lenses (L1, L2, L3, L4, L5, L6), the fourth lens (L4) may be positioned between the third lens (L3) and the image sensor (I). For example, the fourth lens (L4) may be understood as being positioned third closest to the first lens (L2). In one embodiment, the fourth lens (L4) may be understood as the third lens positioned from the image sensor (I) among at least six lenses (L1, L2, L3, L4, L5, L6). In one embodiment, the fourth lens (L4) may have a negative refractive power. In one embodiment, the fourth lens (L4) may be an aspherical lens. In one embodiment, the fourth lens (L4) may be a plastic lens and have a refractive index of approximately 1.6 or higher (e.g., approximately 1.67). In one embodiment, the fourth lens (L4) may include at least one inflection point (IP) on the object side surface (S9). For example, the object side surface (S9) of the fourth lens (L4) may have a convex shape in the region between the optical axis (O) and the inflection point (IP), while the region between the inflection point (IP) and the edge may have a concave shape. In one embodiment, the sensor side surface (S10) of the fourth lens (L4) may have a concave shape. In FIG. 7, the object side surface of the fourth lens (L4) may be indicated as 'S9', and the sensor side surface of the fourth lens (L4) may be indicated as 'S10'.

[0137] According to one embodiment, the fifth lens (L5) is positioned between the fourth lens (L4) and the image sensor (I) among at least six lenses (L1, L2, L3, L4, L5, L6) and may have a positive refractive power. In one embodiment, the fifth lens (L5) may be understood as the second lens positioned from the image sensor (I) among at least six lenses (L1, L2, L3, L4, L5, L6). In one embodiment, the fifth lens (L5) may be a plastic lens having a refractive index of approximately 1.55 or less (e.g., approximately 1.535). In one embodiment, the fifth lens (L5) may be an aspherical lens. In one embodiment, the object-side surface (S11) of the fifth lens (L5) may have a concave shape, and the sensor-side surface (S12) of the fifth lens (L5) may have a convex shape. In FIG. 7, the object side of the fifth lens (L5) may be indicated as 'S11', and the sensor side of the fifth lens (L5) may be indicated as 'S12'.

[0138] According to one embodiment, the sixth lens (L6) may be the lens positioned closest to the image sensor (I) among at least six lenses (L1, L2, L3, L4, L5, L6). For example, the sixth lens (L6) may be positioned between the first lens (L1) and the image sensor (I) (or between the fifth lens (L5) and the image sensor (I)) and may have a negative refractive power. In one embodiment, the sixth lens (L6) may be understood as the first lens positioned from the image sensor (I) among at least six lenses (L1, L2, L3, L4, L5, L6). In one embodiment, the sixth lens (L6) may be a plastic lens having a refractive index of approximately 1.6 or higher (e.g., approximately 1.61). In one embodiment, when the sixth lens (L6) provides high refractive index performance, it may lower the chief ray angle (CRA) and provide an environment where chromatic aberration correction is easy. In one embodiment, the sixth lens (L6) may be an aspherical lens. In one embodiment, the sixth lens (L6) may have a meniscus shape that is convex toward the object (S). In one embodiment, the sixth lens (L6) may have a meniscus shape in which the paraxial region is convex toward the object (S), and the peripheral region is tilted toward the object (S). For example, the peripheral region of the sixth lens (L6) may have a meniscus shape that is convex toward the image sensor (I). In one embodiment, the object-side surface (S13) of the sixth lens (L6) and / or the sensor-side surface (S14) of the sixth lens (L6) may include at least one inflection point (IP). In one embodiment, by including the inflection point (IP)(s) of the sixth lens (L6), the angle of light rays incident on the image sensor (I) can be suppressed, and various aberration corrections or securing the peripheral light ratio can be made easier.In one embodiment, the sixth lens (L6) has a meniscus shape that is convex toward the object (S) in the paraxial region and a meniscus shape that is convex toward the image sensor (I) in the peripheral region, thereby providing an environment that facilitates reducing the lens length, e.g., the 'TTL' of FIG. 5, while also facilitating peripheral curvature correction. In FIG. 7, the object-side surface of the sixth lens (L6) may be indicated as 'S13', and the sensor-side surface of the sixth lens (L6) may be indicated as 'S14'. In FIG. 7, reference numeral 'S15' may indicate the object-side surface of the infrared blocking filter (F), and reference numeral 'S16' may indicate the sensor-side surface of the infrared blocking filter (F).

[0139] According to one embodiment, the object-side surface (S13) of the sixth lens (L6) may include a plurality (e.g., two or four) inflection points (IP). For example, on the object-side surface (S13), a convex area and a concave area may be alternately arranged between a vertex (e.g., a point where the optical axis (O) intersects) and an edge. In one embodiment, when four inflection points (IP) are included, the object-side surface (S13) of the sixth lens (L6) may include two areas of a first shape (e.g., convex shape) and an area of ​​a second shape (e.g., concave shape) arranged between the areas of the first shape. In one embodiment, when the object-side surface (S13) of the sixth lens (L6) includes a plurality (e.g., two) inflection points (IP), an environment can be provided in which curvature in the periphery can be easily corrected.

[0140] According to one embodiment, the sensor-side surface (S14) of the sixth lens (L6) may include at least two inflection points (IP). For example, the area between the optical axis (O) and the inflection point (IP) on the sensor-side surface (S14) of the sixth lens (L6) may have a concave shape, and the area between the inflection point (IP) and the edge of the sixth lens (L6) may have a convex shape. Thus, the sixth lens (L6) may have a meniscus shape that is convex toward the object (S) in the paraxial region, and may have a shape that is tilted toward the object (S) as it approaches the edge in the peripheral region. In one embodiment, the shape of the sixth lens (L6) as described above can provide an environment that facilitates peripheral curvature correction while reducing the lens length (e.g., 'TTL' in FIG. 5) in the camera module (500) and / or lens assembly (LA). In one embodiment, the sensor side surface (S14) of the sixth lens (L6) may include four inflection points (IP), similar to the object side surface (S13).

[0141] In the illustrated embodiment, the infrared blocking filter (F) is positioned between the sixth lens (L6) and the image sensor (I) to block light of a specified wavelength band. The term "light of a specified wavelength band" may refer to light of a wavelength that is not visible to the user's naked eye but is detected by a photosensitive material or the image sensor (I), as previously mentioned.

[0142] According to one embodiment, the camera module (500) and / or lens assembly (LA) may include an aperture (sto) positioned between a first lens (L1) and a second lens (L2). As previously mentioned, the phrase "between the first lens (L1) and the second lens (L2)" in reference to the position of the aperture (sto) can be understood to include the sensor side (S3) of the first lens (L1) and the object side (S5) of the second lens (L2). In one embodiment, the specification or position of the aperture (sto) may determine the brightness of the lens assembly (LA), for example, the F-number (Fno). In one embodiment, by positioning the aperture (sto) between the first lens (L1) and the second lens (L2), optical performance such as securing relative illumination (RI) or controlling aberrations can be stabilized. In one embodiment, the aperture (sto) is positioned between the first lens (L1) and the second lens (L2), thereby making it easy to reduce the overall size of the lens assembly (LA) and / or the outer diameter of the first lens (L1).

[0143] According to one embodiment, a processor (e.g., processor (120) of FIG. 1) or an image signal processor (e.g., image signal processor (260) of FIG. 2) can acquire an image of a subject (e.g., object (S)) by detecting light focused or guided by a lens assembly (LA) using an image sensor (I). In one embodiment, the processor (e.g., processor (120) of FIG. 1) can perform a focus adjustment operation and / or a focal length adjustment operation by moving at least one of the lenses (L1, L2, L3, L4, L5, L6) linearly along the optical axis (O) direction relative to the image sensor (I). In one embodiment, the processor (e.g., processor (120) of FIG. 1) can perform a hand shake correction operation by moving at least one of the lenses (L1, L2, L3, L4, L5, L6) or the image sensor (I) horizontally parallel to a plane substantially perpendicular to the optical axis (O). In one embodiment, the processor may cause an electronic device (e.g., the electronic device of FIGS. 1 to 4 (101, 102, 104, 200, 300)) to receive or detect external light using an image sensor (I) while performing focus adjustment and / or image stabilization operations by executing at least a portion of the instruction(s) stored in memory (e.g., memory (130) of FIG. 1). For example, instruction(s) that cause the electronic device to receive at least a portion of the light focused by the image sensor (I) and to acquire an image of an object (S) based on the received light may be stored in memory, and such instruction(s) may be executed by the processor(s). In one embodiment, the memory may store instruction(s) configured to correct distortion through image processing based on a stereographic distortion mapping function.

[0144] In the embodiments described below, some of the reference numbers assigned to the lens surfaces in the drawings are not directly mentioned, but those skilled in the art will be able to easily understand the configuration of each lens (L1, L2, L3, L4, L5, L6) or lens surfaces based on the lens data presented in the [Tables] described below. For the sake of brevity in the drawings, some of the object-side surfaces (L1, L2, L3, L4, L5, L6) and sensor-side surfaces (L4, L5, L6) and / or reference numbers in the drawings for inflection points (IP) may be omitted. An 'inflection point (IP)' refers to a point on the object-side surface(s) and sensor-side surface(s) that does not intersect the optical axis (O) and where the radius of curvature changes; it may be indicated by the symbol '●' in the drawings, and the reference number may be omitted. Here, the phrase 'the radius of curvature changes' can be understood as the value of the radius of curvature changing from a negative value to a positive value or from a positive value to a negative value.

[0145] In the following detailed description, values ​​regarding the radius (e.g., radius of curvature), effective focal length (f), total track length (TTL), air gap, thickness, or image height of the image sensor (I), including the variables examined with reference to FIG. 5, may all have units of mm unless specifically noted. 'TTL' is the distance from the top (e.g., upper surface (TS) in FIG. 5) of the lens barrel (e.g., barrel (B) in FIG. 5) that holds or fixes the lenses to the image plane (img) of the image sensor (I), and can be measured parallel to the optical axis (O). Additionally, the radius of curvature, effective focal length, TTL, air gap, or thickness of the lenses (L1, L2, L3, L4, L5, L6) may be distances measured parallel to the optical axis (O), and / or the effective radius and the height of the image sensor (I) may be distances measured along a direction substantially perpendicular to the optical axis (O) from the point where the optical axis (O) intersects.

[0146] According to one embodiment, the camera module (500) and / or its lens assembly (LA) may satisfy the conditions presented by the following [Equation 1]. [Equation 1] may present conditions regarding, for example, the lens length 'TTL' of the camera module (500) and / or lens assembly (LA) and the maximum image height 'IH' of the image sensor (I).

[0147]

[0148] In one embodiment, when the calculated value of [Equation 1] is greater than approximately 0.92, the lens full length 'TTL' increases, making it difficult to miniaturize the camera module (500) and / or lens assembly (LA). For example, [Equation 1] may provide conditions for implementing a camera module (500) and / or lens assembly (LA) of a size that is easy to mount on an electronic device such as a smartphone when combined with a high-resolution and / or large-scale high-performance image sensor. In one embodiment, the calculated value of [Equation 1] may be approximately 0.6 or greater. In one embodiment, when the calculated value of [Equation 1] is less than approximately 0.6, the camera module (500) and / or lens assembly (LA) may be miniaturized, but there may be difficulties in processing or assembling the lenses (L1, L2, L3, L4, L5, L6). For example, when applying the conditions of [Equation 1] to an actual product, a lower limit value may be appropriately selected by considering manufacturing costs, the difficulty of the manufacturing process, and / or the time required for manufacturing. In one embodiment, the calculated value of [Equation 1] may be approximately 0.85 or higher.

[0149] According to one embodiment, the camera module (500) and / or lens assembly (LA) may satisfy the conditions presented by the following [Equation 2]. [Equation 2] may present conditions regarding, for example, the effective aperture 'L1-ape' of the first lens (L1) and the maximum image height 'IH' of the image sensor (I).

[0150]

[0151] In one embodiment, [Equation 2] presents a condition in which the first lens (L1) is miniaturized relative to the size of the image sensor (I), and can exemplify the small head effect. In one embodiment, the effective diameter 'L1-ape' of the first lens (L1) may be approximately 50% or less of the maximum image height 'IH'. In one embodiment, when the condition of [Equation 2] is satisfied, the lens assembly (LA) can be miniaturized while still being able to focus a sufficient amount of light suitable for the performance of the image sensor (I).

[0152] According to one embodiment, the camera module (500) and / or lens assembly (LA) may satisfy the conditions presented in the following [Equation 3]. [Equation 3] may present conditions regarding the field of view 'FOV' of the camera module (500) and / or lens assembly (LA), for example, and the unit may be 'degrees'.

[0153]

[0154] According to one embodiment, when the angle of view of the lens assembly (LA) exceeds approximately 140 degrees, the focal length decreases, which may be advantageous for miniaturization, but there may be difficulties in securing peripheral light. In one embodiment, when the angle of view of the lens assembly (LA) is smaller than approximately 110 degrees, securing peripheral performance may be advantageous, but the focal length increases, which may be difficult for miniaturization and difficult for securing ultra-wide angle performance. In one embodiment, the angle of view of the camera module (500) and / or the lens assembly (LA) may be in the range of approximately 115 degrees or more and 125 degrees or less.

[0155] According to one embodiment, the camera module (500) and / or lens assembly (LA) may satisfy the conditions presented by the following [Equation 4]. [Equation 4] may present conditions regarding the correlation between the thickness 'LL3T' and 'OAL' of the third lens positioned from the image sensor, e.g., the fourth lens (L4), in the camera module (500) and / or lens assembly (LA), for example. As previously mentioned, 'OAL' may be the distance measured from the object side surface (S2) of the first lens (L1) to the image sensor (I) (e.g., the imaging plane (img)) along the optical axis (O). In one embodiment, when the lens assembly (LA) is configured to include five lenses as in the embodiments of FIG. 16, FIG. 20 and / or FIG. 24, the thickness 'LL3T' may refer to the thickness of the third lens (L3).

[0156]

[0157] According to one embodiment, when the camera module (500) and / or lens assembly (LA) satisfies the conditions of [Equation 4], the total length of the lens assembly (LA) (e.g., the length measured parallel to the optical axis (O)) can be miniaturized. For example, when the thickness of the fourth lens (L4) placed third from the image sensor increases, there may be difficulties in miniaturizing the lens assembly (LA). In one embodiment, the calculated value of [Equation 4] may be approximately 0.03 or greater. In one embodiment, the calculated value of [Equation 4] may be approximately 0.04 or greater.

[0158] According to one embodiment, the camera module (500) and / or lens assembly (LA) may satisfy the conditions presented by the following [Equation 5]. [Equation 5] may present conditions regarding the F-number of the lens assembly (LA), for example.

[0159]

[0160] In one embodiment, when the F-number 'Fno' exceeds approximately 2.5, the resolution of the lens assembly (LA) is reduced and the lens assembly (LA) can be implemented as a relatively dark optical system. In one embodiment, when the F-number 'Fno' is approximately less than 2.0, the lens assembly (LA) can be implemented as a bright optical system, but it may be difficult to miniaturize as it requires a larger number of lenses. For example, [Equation 5] can exemplify conditions in which the lens assembly (LA) can be miniaturized while still providing optical performance that meets the specifications of the image sensor (I).

[0161] According to one embodiment, the camera module (500) and / or its lens assembly (LA) may satisfy the conditions presented by the following [Equation 6] regarding the focal length (e.g., total effective focal length) 'efl' and the focal length 'F2' of the lens assembly (LA). The focal length 'F2' may be, for example, the combined focal length of the second lens (L2) and the third lens (L3). In one embodiment, when the lens assembly (LA) is configured to include five lenses as in the embodiments of FIG. 16, FIG. 20 and / or FIG. 24, the focal length 'F2' may refer to the focal length of the second lens (L2).

[0162]

[0163] In one embodiment, [Equation 6] may present conditions regarding the refractive power of the combination of the second lens (L2) and the third lens (L3) (and / or the refractive power of the second lens (L2) in the case of a lens assembly (LA) comprising five lenses described later). In one embodiment, when the calculated value of [Equation 6] exceeds approximately 3.0, the refractive power of the combination of the second lens (L2) and the third lens (L3) (and / or the refractive power of the second lens (L2) in the case of a lens assembly (LA) comprising five lenses described later) decreases, making it difficult to reduce the overall length of the lens assembly (LA), e.g., 'TTL'. In one embodiment, when the calculated value of [Equation 6] is approximately less than 0.8, the refractive power of the combination of the second lens (L2) and the third lens (L3) (and / or the refractive power of the second lens (L2) in the case of a lens assembly (LA) including five lenses described later) increases, and the sensitivity in assembly increases, making it difficult to ensure mass production. For example, when the condition of [Equation 6] is satisfied, a lens assembly (LA) that is miniaturized and easy to mass produce can be realized.

[0164] According to one embodiment, the camera module (500) and / or lens assembly (LA) may satisfy the conditions presented by the following [Equation 7]. [Equation 7] may present conditions regarding the optical distortion rate of the camera module (500) and / or lens assembly (LA), for example. The optical distortion rate referred to in [Equation 7] is, for example, the stereographic distortion mapping function described with reference to FIG. 6, It may be based on. The distortion rate based on the stereographic distortion mapping function, 'OD (optical distortion)', is It can be calculated using the formula and can have a '%' unit. In calculating the distortion rate based on the stereographic distortion mapping function, the reference value 'y_ref' is It can be calculated using the formula. In [Equation 7], 'Dis-V' represents the ratio of the distortion rate at 0.6F to the distortion rate at 1.0F, 'Dis-F', for example, It can be calculated using the formula. In [Equation 7], 'Dis-H' represents the ratio of the distortion rate at 0.8F to the distortion rate at 1.0F, 'Dis-F', for example, It can be calculated using the formula. In one embodiment, the distortion rate 'Dis-F' at 1.0F may refer to the diagonal distortion rate. In one embodiment, the distortion rate 'Dis-0.6F' at 0.6F may refer to the vertical distortion rate. In one embodiment, the distortion rate 'Dis-0.8F' at 0.8F may refer to the horizontal distortion rate. As seen with reference to FIG. 6, it is easy to implement wide-angle performance in a lens assembly (LA) by calculating the distortion rate based on a stereographic distortion mapping function and / or performing auto-framing, and / or satisfying the conditions presented through [Equation 7].

[0165] According to one embodiment, based on a stereographic distortion mapping function, in the camera module (500) and / or lens assembly (LA), the distortion rate at 1.0F may be approximately -49% or more and approximately -27% or less, the distortion rate at 0.6F may be approximately 33% or more of the distortion rate at 1.0F, and the distortion rate at 0.8F may be approximately 58% or more of the distortion rate at 1.0F. In one embodiment, the distortion rate based on the stereographic distortion mapping function may vary depending on the angle of view of the lens assembly (LA). For example, when the angle of view, FOV, of the lens assembly (LA) is approximately 100 degrees, the distortion rate at 1.0F may be approximately -22%, when it is approximately 120 degrees, the distortion rate at 1.0F may be approximately -33%, and when it is approximately 140 degrees, the distortion rate at 1.0F may be approximately -49%. When the angle of view of the lens assembly (LA) is approximately 120 degrees, a distortion rate graph of the camera module (500) and / or the lens assembly (LA) based on a stereographic distortion mapping function can be illustrated through FIG. 28. According to one embodiment, with reference to FIG. 28, in a lens assembly (LA) with an angle of view of approximately 120 degrees, a distortion rate of 1.0F can be controlled to approximately -33%, a distortion rate of 0.8F can be controlled to approximately -22%, and / or a distortion rate of 0.6F can be controlled to approximately -12%.

[0166]

[0167]

[0168]

[0169] According to one embodiment, a camera module (500) and / or an electronic device including the same (e.g., the electronic device (101, 300) of FIG. 1 or FIG. 3) may be configured to correct distortion through image processing based on a stereographic distortion mapping function. Generally, in a lens assembly providing wide-angle characteristics, the angle of view per unit pixel in the peripheral area may be smaller than in the central area. Image processing and / or distortion correction based on a stereographic distortion mapping function may be useful, for example, to compensate for optical performance degradation in the peripheral area of ​​a wide-angle lens, and / or to improve wide-angle performance.

[0170] According to one embodiment, the camera module (500) and / or lens assembly (LA) may satisfy the conditions presented by the following [Equation 8]. [Equation 8] may present conditions regarding the shape (e.g., radius of curvature of lens surfaces) or refractive power of the fifth lens (L5) positioned second from the image sensor (I) side (and / or the fourth lens (L4) in the case of a lens assembly (LA) comprising five lenses described later). In one embodiment, the camera module (500) and / or lens assembly (LA) may satisfy a range of approximately 0.7 or more and approximately 0.9 or less in the calculated value according to [Equation 8].

[0171]

[0172] Here, 'LL2S1R' is the radius of curvature at the point where the object side surface (e.g., the surface indicated by 'S11' in FIG. 7 or the surface indicated by 'S9' in FIG. 16) of the second lens (e.g., the fifth lens (L5)) positioned from the image sensor (I) side intersects the optical axis (O), and 'LL2S2R' may be the radius of curvature at the point where the sensor side surface (e.g., the surface indicated by 'S12' in FIG. 7 or the surface indicated by 'S10' in FIG. 16) of the second lens (e.g., the fifth lens (L5)) positioned from the image sensor (I) side intersects the optical axis (O). In one embodiment, when the condition of [Equation 8] is satisfied, total reflection and / or stray light occurring on the object side (S11) (or object side (S9) of FIG. 16) or sensor side (S12) (or sensor side (S10) of FIG. 16) of the fifth lens (L5) of FIG. 7 (or the fourth lens (L4) of FIG. 16) can be suppressed. For example, when the calculated value of [Equation 8] is approximately less than 0.1, the refractive power of the second lens positioned from the image sensor (I) side is lowered, and flare caused by total reflection in the edge area of ​​the screen at low angles may increase. In one embodiment, when the calculated value of [Equation 8] is approximately greater than 1.0, the refractive power of the second lens positioned from the image sensor (I) side increases, and there may be difficulties in power balance with the first lens positioned from the image sensor (I) side (the sixth lens (L6) in FIG. 7 or the fifth lens (L5) in FIG. 16). For example, in the embodiment of FIG. 7, when the refractive power of the fifth lens (L5) does not satisfy the condition of [Equation 8], there may be difficulties in securing the refractive power of the sixth lens (L6) corresponding to the increased refractive power of the fifth lens (L5). In one embodiment, when the refractive power of the fifth lens (L5) increases and an appropriate refractive power is not secured in the sixth lens (L6), it may be difficult to secure the modulation transfer function (MTF) performance of the lens assembly (LA).

[0173] According to one embodiment, the camera module (500) and / or its lens assembly (LA) may satisfy the conditions presented by the following [Equation 9] regarding the thickness 'LL2T' of the second lens, for example, the fifth lens (L5) of FIG. 7 (or the fourth lens (L4) of FIG. 16), from the image sensor (I) side and 'TA'. 'TA' may be, for example, a distance measured from the optical axis (O) from the object side surface of the first lens on the object side (e.g., the first lens (L1) of FIG. 7 or the first lens (L1) of FIG. 16) to the sensor side surface of the first lens on the image sensor side (e.g., the sixth lens (L6) of FIG. 7 or the fifth lens (L5) of FIG. 16).

[0174]

[0175] In one embodiment, similar to [Equation 8], [Equation 9] may provide conditions that can suppress flare phenomena or secure good modulation transfer function performance. In one embodiment, when the conditions presented through [Equation 9] are satisfied, aberration control for the peripheral area of ​​the lens assembly (LA) may be easy.

[0176] According to one embodiment, the camera module (500) and / or its lens assembly (LA) may have a focal length of approximately 1.73 mm, an F-number of approximately 2.28, and an angle of view of approximately 120 degrees. In one embodiment, the camera module (500) and / or its lens assembly (LA) may satisfy at least some of the above-described condition(s) including [Equation 1-9] and may be manufactured to the specifications exemplified in the following [Table 1]. In the [Table 1] below, at least one of the lens surfaces may be aspherical, and the lens surface corresponding to the aspherical will be more clearly understood through the [Tables] regarding aspherical coefficients described later. The aperture 'sto' may be positioned between the first lens (L1) and the second lens (L2). It should be noted that the phrase “between the first lens (L1) and the second lens (L2)” can generally be understood as the space between the first lens (L1) and the second lens (L2), but the embodiments of the present disclosure are not limited thereto. For example, the phrase “between the first lens (L1) and the second lens (L2)” can be understood to include the sensor side surface (S3) of the first lens (L1) and the object side surface (S5) of the second lens (L2).

[0177] Lens Surface (Surf) Radius of Curvature (Radius) Thickness (Thick) Refractive Index (nd) Abbe Number (vd) objinfinity4001infinity0.2521.9030.2361.5440155.9131.0110.170stoinfinity0.0305164.5380.1731.6707419.23611.8180.02172.1340.3761.53555. 758-2.1810.02092.7390.1601.6707419.23101.7770.09111-5.9090.6471.53555.7512-0.6250.118132. 2900.4881.6144425.94140.6580.27915infinity0.1101.516864.216infinity0.589imginfinity-0.013

[0178] Tables 2, 3, and 4 below list the aspheric coefficients of lenses (L1, L2, L3, L4, L5, L6), and the definition of aspheric is given by the following Equation 10.

[0179]

[0180] [Equation 10], "x" is the distance in the direction of the optical axis (O) from the point where the optical axis (O) passes through the lens surface, "y" is the distance in the direction perpendicular to the optical axis (O) from the optical axis (O), 'R' is the radius of curvature at the vertex of the lens, 'K' is the conic constant, and 'Ai' is the aspherical coefficient, which can be written as 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'J', 'K', 'L', 'M', 'N', 'O' depending on the notation method.

[0181] 렌즈면(Surf)2_ASP3_ASP5_ASP6_ASP곡률반경(Radius)1.90341E+001.01088E+001.64538E+021.18180E+01K(Conic)0.00000E+00-9.30804E-010.00000E+000.00000E+00A(4th) / C46.83620E-028.49047E-01-2.11136E-01-1.17040E+00B(6th) / C53.86960E+00-1.28379E+01-3.50448E+01-3.22949E+00C(8th) / C6-5.12116E+016.04067E+021.52014E+03-2.92472E+01D(10th) / C74.41871E+02-1.53218E+04-3.97263E+042.18140E+03E(12th) / C8-2.51769E+032.35473E+056.30944E+05-3.99819E+04F(14th) / C99.38645E+03-2.23440E+06-6.21240E+063.79412E+05G(16th) / C10-2.19237E+041.27860E+073.68879E+07-2.02899E+06H(18th) / C112.89587E+04-4.04853E+07-1.20549E+085.83636E+06J(20th) / C12-1.64677E+045.43781E+071.65535E+08-7.09497E+06K(22th) / C130.00000E+000.00000E+000.00000E+000.00000E+00L(24th) / C140.00000E+000.00000E+000.00000E+000.00000E+00M(26th) / C150.00000E+000.00000E+000.00000E+000.00000E+00N(28th) / C160.00000E+000.00000E+000.00000E+000.00000E+00O(30th) / C170.00000E+000.00000E+000.00000E+000.00000E+00

[0182] 렌즈면(Surf)7_ASP8_ASP9_ASP10_ASP곡률반경(Radius)2.13360E+00-2.18066E+002.73910E+001.77713E+00K(Conic)0.00000E+001.77771E+000.00000E+00-2.23817E+01A(4th) / C4-4.88080E-01-3.24771E-01-7.49150E-012.55727E-01B(6th) / C5-6.16187E+009.74975E+003.14132E+00-4.64565E+00C(8th) / C68.05308E+01-2.15700E+02-7.07676E+013.06031E+01D(10th) / C7-6.74892E+022.14459E+036.35416E+02-1.67584E+02E(12th) / C84.27964E+03-1.34361E+04-3.56165E+036.56263E+02F(14th) / C9-2.16684E+045.48109E+041.34859E+04-1.60278E+03G(16th) / C108.99411E+04-1.41206E+05-3.31660E+042.29909E+03H(18th) / C11-2.44303E+052.09740E+054.73572E+04-1.77085E+03J(20th) / C122.85682E+05-1.37683E+05-2.97036E+045.58435E+02K(22th) / C130.00000E+000.00000E+000.00000E+000.00000E+00L(24th) / C140.00000E+000.00000E+000.00000E+000.00000E+00M(26th) / C150.00000E+000.00000E+000.00000E+000.00000E+00N(28th) / C160.00000E+000.00000E+000.00000E+000.00000E+00O(30th) / C170.00000E+000.00000E+000.00000E+000.00000E+00

[0183] 렌즈면(Surf)11_ASP12_ASP13_ASP14_ASP곡률반경(Radius)-5.90910E+00-6.25 466E-012.289721.E+006.576635.E-01K(Conic)0.00000E+00-1.62415E+ 00-1.120021.E+01-2.304592.E+00A(4th) / C47.26914E-013.73570E-01- 2.713839.E-01-1.274516.E+00B(6th) / C5-5.65421E+00-3.20556E+00-6 .796339.E-014.786277.E+00C(8th) / C64.06912E+012.25397E+016.1073 66.E+00-1.390514.E+01D(10th) / C7-2.12122E+02-1.08311E+021.18267 2.E+002.982037.E+01E(12th) / C86.76774E+023.33679E+02-2.122616.E +02-4.699337.E+01F(14th) / C9-1.25504E+03-6.47094E+021.277207.E+ 035.462843.E+01G(16th) / C101.29205E+037.55459E+02-4.120480.E+03 -4.705796.E+01H(18th) / C11-6.46310E+02-4.77419E+028.554928.E+03 3.006756.E+01J(20th) / C121.00636E+021.24072E+02-1.208657.E+04-1 .417367.E+01K(22th) / C130.00000E+000.00000E+001.177920.E+044.85 7196.E+00L(24th) / C140.00000E+000.00000E+00-7.810453.E+03-1.175 195.E+00M(26th) / C150.00000E+000.00000E+003.367891.E+031.900571 .E-01N(28th) / C160.00000E+000.00000E+00-8.519400.E+02-1.841160. E-02O(30th) / C170.00000E+000.00000E+009.593658.E+018.066044.E-04

[0184] FIG. 11 is a drawing showing a camera module (600) and / or a lens assembly (LA) according to one embodiment of the present disclosure. FIG. 12 is a graph showing spherical aberration of the lens assembly (LA) of FIG. 11 according to one embodiment of the present disclosure. FIG. 13 is a graph showing astigmatism of the lens assembly (LA) of FIG. 11 according to one embodiment of the present disclosure. FIG. 14 is a graph showing the distortion rate of the lens assembly (LA) of FIG. 11 according to one embodiment of the present disclosure.

[0185] The camera module (600) and / or its lens assembly (LA) of FIG. 11 may have a focal length of approximately 1.73 mm, an F-number of approximately 2.47, and an angle of view of approximately 120 degrees. In one embodiment, the camera module (600) and / or its lens assembly (LA) may satisfy at least some of the above-described condition(s), including [Equation 1-9]. In one embodiment, the camera module (600) and / or its lens assembly (LA) may be manufactured with the specifications exemplified in the following [Table 5] and may have the aspherical coefficients of [Table 6], [Table 7], and [Table 8].

[0186] Lens Surface (Surf) Radius of Curvature (Radius) Thickness (Thick) Refractive Index (nd) Abbe Number (vd) Sinfinity 400 1 infinity 0.25 21.8 46 0.20 01.5 440 155.9 130.9 49 0.19 5 st infinity 0.01 05 3.6 140.16 01.6 70 741 9.23 6 3.01 30.0 20 72.26 50.33 51.5 35 55.75 8 -2.3620.02693.5600.1601.6707419.23101.7650.09511-7.1120.6121.53555.7512-0.6140.024131.1 690.3851.6144425.94140.5480.31215infinity0.1101.516864.216infinity0.812imginfinity-0.025

[0187] 렌즈면(Surf)2_ASP3_ASP5_ASP6_ASP곡률반경(Radius)1.84621.E+009.49211. E-013.61386.E+003.01324.E+00K(Conic)0.00000.E+00-2.44740.E+010 .00000.E+000.00000.E+00A(4th) / C42.13564.E-013.54660.E+00-5.75 741.E-01-1.35620.E+00B(6th) / C5-5.56960.E+00-6.27768.E+00-2.684 38.E+012.28928.E+00C(8th) / C61.95514.E+02-1.38066.E+031.21363. E+03-2.66735.E+02D(10th) / C7-3.70721.E+035.83434.E+04-3.38979.E +046.42684.E+03E(12th) / C84.27899.E+04-1.38470.E+065.72587.E+05 -8.49841.E+04F(14th) / C9-3.09274.E+052.19577.E+07-5.97098.E+066 .54758.E+05G(16th) / C101.30318.E+06-2.46065.E+083.71963.E+07-2 .79627.E+06H(18th) / C11-1.79536.E+062.00363.E+09-1.25730.E+085. 70997.E+06J(20th) / C12-1.28427.E+07-1.20412.E+101.75072.E+08-3. 39112.E+06K(22th) / C139.05390.E+075.37181.E+100.00000.E+000.000 00.E+00L(24th) / C14-2.83135.E+08-1.76339.E+110.00000.E+000.000 00.E+00M(26th) / C155.05376.E+084.09862.E+110.00000.E+000.00000. E+00N(28th) / C16-4.98705.E+08-6.08295.E+110.00000.E+000.00000.E +00O(30th) / C172.12250.E+084.32792.E+110.00000.E+000.00000.E+00

[0188] 렌즈면(Surf)7_ASP8_ASP9_ASP10_ASP곡률반경(Radius)2.26511.E+00-2.3621 6.E+003.56012.E+001.76460.E+00K(Conic)0.00000.E+005.87452.E+0 00.00000.E+00-3.69850.E+01A(4th) / C4-6.12384.E-015.78084.E-01- 1.53846.E-014.24039.E-01B(6th) / C54.04626.E+00-2.30201.E+01-1.8 7880.E+01-9.47571.E+00C(8th) / C6-3.60071.E+023.64879.E+022.807 21.E+028.43871.E+01D(10th) / C78.23070.E+03-4.38298.E+03-2.89422 .E+03-5.50367.E+02E(12th) / C8-1.05142.E+053.44683.E+041.96529. E+042.49908.E+03F(14th) / C98.18059.E+05-1.75180.E+05-8.63258.E+ 04-7.44624.E+03G(16th) / C10-3.79232.E+065.55159.E+052.36198.E+ 051.38640.E+04H(18th) / C119.62004.E+06-9.95731.E+05-3.65344.E+0 5-1.46426.E+04J(20th) / C12-1.03008.E+077.68170.E+052.42600.E+0 56.68467.E+03K(22th) / C130.00000.E+000.00000.E+000.00000.E+000. 00000.E+00L(24th) / C140.00000.E+000.00000.E+000.00000.E+000.00 000.E+00M(26th) / C150.00000.E+000.00000.E+000.00000.E+000.00000 .E+00N(28th) / C160.00000.E+000.00000.E+000.00000.E+000.00000.E +00O(30th) / C170.00000.E+000.00000.E+000.00000.E+000.00000.E+00

[0189] 렌즈면(Surf)11_ASP12_ASP13_ASP14_ASP곡률반경(Radius)-7.11189.E+00-6.1 4352.E-011.16898.E+005.47750.E-01K(Conic)3.16562.E+01-1.61529. E+00-3.92414.E+00-2.12354.E+00A(4th) / C45.83347.E-01-3.49400.E- 01-1.05081.E+00-1.85204.E+00B(6th) / C5-5.22081.E+005.58454.E+00 5.51571.E+008.76946.E+00C(8th) / C63.72536.E+01-3.75937.E+01-2.0 5674.E+01-3.15948.E+01D(10th) / C7-2.02659.E+021.45260.E+023.430 23.E+018.38179.E+01E(12th) / C87.26874.E+02-3.48987.E+026.23630. E+01-1.63678.E+02F(14th) / C9-1.59398.E+035.24316.E+02-5.33166.E+ 022.36816.E+02G(16th) / C102.07526.E+03-4.71507.E+021.58257.E+03 -2.55276.E+02H(18th) / C11-1.48634.E+032.36137.E+02-2.88953.E+03 2.05228.E+02J(20th) / C124.51945.E+02-5.40543.E+013.58723.E+03-1 .22345.E+02K(22th) / C130.00000.E+000.00000.E+00-3.10219.E+035.3 2609.E+01L(24th) / C140.00000.E+000.00000.E+001.84898.E+03-1.643 55.E+01M(26th) / C150.00000.E+000.00000.E+00-7.26582.E+023.40263 .E+00N(28th) / C160.00000.E+000.00000.E+001.69812.E+02-4.23574.E -01O(30th) / C170.00000.E+000.00000.E+00-1.79051.E+012.39492.E-02

[0190] FIG. 15 is a drawing showing a camera module (700) and / or a lens assembly (LA) according to one embodiment of the present disclosure.

[0191] The lens assembly (LA) of FIG. 15 may differ from the lens assembly (LA) of FIG. 5 in a configuration comprising at least five lenses (L1, L2, L3, L4, L5). For example, since the lens assembly (LA) of FIG. 15 can be easily understood through the detailed description of the embodiment of FIG. 5, a detailed description of its configuration will be omitted. In one embodiment, in the description of the lens assembly (LA) of FIG. 15, FIG. 16, FIG. 20 and / or FIG. 24, variables described through the embodiment of FIG. 5 may be referenced. For example, the 'TTL (total track length)' mentioned in the embodiments described below may refer to the total length of the lens, similar to that mentioned in the embodiment of FIG. 5, and may be the distance from the upper surface (TS) of the barrel (B) that mounts or supports the lenses (L1, L2, L3, L4, L5) to the image sensor (I) (e.g., the imaging plane (img)) measured parallel to the optical axis (O).

[0192] According to one embodiment, the lens assembly (LA) of the embodiment(s) described below may include five lenses (L1, L2, L3, L4, L5). In the case where the lens assembly (LA) of the embodiment(s) described below satisfies at least some of the conditions including [Equation 1-9] described above, the third lens (L3) positioned third from the image sensor (I) may satisfy the condition of [Equation 4] regarding thickness. In the case where the lens assembly (LA) of the embodiment(s) described below satisfies at least some of the conditions including [Equation 1-9] described above, the second lens (L2) positioned fourth from the image sensor (I) may satisfy the condition of [Equation 6] regarding focal length. In the case where the lens assembly (LA) of the embodiment(s) described below satisfies at least some of the conditions including [Equation 1-9] described above, the fourth lens (L4) secondly positioned from the image sensor (I) may satisfy the condition of [Equation 8] regarding the radius of curvature and the condition of [Equation 9] regarding the thickness.

[0193] FIG. 16 is a drawing showing a camera module (800) and / or a lens assembly (LA) according to one embodiment of the present disclosure. FIG. 17 is a graph showing spherical aberration of the lens assembly (LA) of FIG. 16 according to one embodiment of the present disclosure. FIG. 18 is a graph showing astigmatism of the lens assembly (LA) of FIG. 16 according to one embodiment of the present disclosure. FIG. 19 is a graph showing the distortion rate of the lens assembly (LA) of FIG. 16 according to one embodiment of the present disclosure.

[0194] Referring to FIG. 16, the camera module (800) and / or lens assembly (LA) may include at least five lenses (L1, L2, L3, L4, L5). The at least five lenses (L1, L2, L3, L4, L5) may, for example, focus or guide light incident from the outside to an image sensor (I). In one embodiment, the light focused or guided by the at least five lenses (L1, L2, L3, L4, L5) is converted into an electrical signal by the image sensor (I) (e.g., an imaging plane (img)), and the camera module (800) and / or lens assembly (LA) may output, transmit, or store an image of a subject based on the light (or electrical signal) acquired through the image sensor (I).

[0195] According to one embodiment, among at least five lenses (L1, L2, L3, L4, L5), the first lens (L1) is the first lens on the object (S) side or the lens furthest from the image sensor (I), and may have a meniscus shape that is convex toward the object (S). In one embodiment, the first lens (L1) may have negative refractive power. In one embodiment, the first lens (L1) may be an aspherical lens. In one embodiment, the first lens (L1) may be a plastic lens and may have a refractive index of approximately 1.55 or less (e.g., approximately 1.54). In FIG. 16, the object-side surface of the first lens (L1) may be indicated as 'S2', and the sensor-side surface of the first lens (L1) may be indicated as 'S3'.

[0196] According to one embodiment, among at least five lenses (L1, L2, L3, L4, L5), the second lens (L2) is positioned closest to the first lens (L1) and between the first lens (L1) and the image sensor (I), and may have a biconvex shape. For example, the second lens (L2) may include a convex object-side surface (S5) and a convex sensor-side surface (S6). In one embodiment, the second lens (L2) may have positive refractive power. In one embodiment, the second lens (L2) may be an aspherical lens. In one embodiment, the second lens (L2) may be a plastic lens and may have a refractive index of approximately 1.55 or less (e.g., between approximately 1.53 and approximately 1.54). In FIG. 16, the object side of the second lens (L2) may be indicated as 'S5', and the sensor side of the second lens (L2) may be indicated as 'S6'.

[0197] According to one embodiment, among at least five lenses (L1, L2, L3, L4, L5), the third lens (L3) may be positioned between the first lens (L1) and the image sensor (I) and second closest to the first lens (L1). For example, the third lens (L3) may be understood as being positioned between the second lens (L2) and the image sensor (I). In one embodiment, the third lens (L3) may be understood as the third lens positioned from the image sensor (I) among at least five lenses (L1, L2, L3, L4, L5). In one embodiment, the third lens (L3) may have a negative refractive power. In one embodiment, the third lens (L3) may be an aspherical lens. In one embodiment, the third lens (L3) may be a plastic lens and have a refractive index of approximately 1.6 or higher (e.g., approximately 1.67). In one embodiment, the third lens (L3) may include at least one inflection point (IP) on the object side surface (S7). For example, the object side surface (S7) of the third lens (L3) may have a convex shape in the region between the optical axis (O) and the inflection point (IP), while the region between the inflection point (P) and the edge may have a concave shape. In one embodiment, the sensor side surface (S8) of the third lens (L3) may have a concave shape. In FIG. 16, the object side surface of the third lens (L3) may be indicated as 'S7', and the sensor side surface of the third lens (L3) may be indicated as 'S8'.

[0198] According to one embodiment, the fourth lens (L4) is positioned between the third lens (L3) and the image sensor (I) among at least five lenses (L1, L2, L3, L4, L5) and may have a positive refractive power. In one embodiment, the fourth lens (L4) may be understood as the second lens positioned from the image sensor (I) among at least five lenses (L1, L2, L3, L4, L5). In one embodiment, the fourth lens (L4) may be a plastic lens having a refractive index of approximately 1.55 or less (e.g., approximately 1.535). In one embodiment, the fourth lens (L4) may be an aspherical lens. In one embodiment, the object-side surface (S9) of the fourth lens (L4) may have a concave shape, and the sensor-side surface (S10) of the fourth lens (L4) may have a convex shape. In FIG. 16, the object side of the fourth lens (L4) may be indicated as 'S9', and the sensor side of the fourth lens (L4) may be indicated as 'S10'.

[0199] According to one embodiment, the fifth lens (L5) may be the lens positioned closest to the image sensor (I) among at least five lenses (L1, L2, L3, L4, L5). For example, the fifth lens (L5) may be positioned between the first lens (L1) and the image sensor (I) (or between the fourth lens (L4) and the image sensor (I)) and may have a negative refractive power. In one embodiment, the fifth lens (L5) may be understood as the first lens positioned from the image sensor (I) among at least five lenses (L1, L2, L3, L4, L5). In one embodiment, the fifth lens (L5) may be a plastic lens having a refractive index of approximately 1.6 or higher (e.g., approximately 1.61). In one embodiment, when the fifth lens (L5) provides high refractive index performance, it may lower the chief ray angle (CRA) and provide an environment where chromatic aberration correction is easy. In one embodiment, the fifth lens (L5) may be an aspherical lens. In one embodiment, the fifth lens (L5) may have a meniscus shape that is convex toward the object (S). In one embodiment, the paraxial region of the fifth lens (L5) may have a meniscus shape that is convex toward the object (S), and the peripheral region may have a shape that is tilted toward the object (S). For example, the peripheral region of the fifth lens (L5) may have a meniscus shape that is convex toward the image sensor (I). In one embodiment, the object-side surface (S11) of the fifth lens (L5) and / or the sensor-side surface (S12) of the fifth lens (L5) may include at least one inflection point (IP). In one embodiment, by including the inflection point (IP)(s) of the fifth lens (L5), the angle of light rays incident on the image sensor (I) can be suppressed, and various aberration corrections or securing the peripheral light ratio can be made easier.In one embodiment, the fifth lens (L5) has a meniscus shape that is convex toward the object (S) in the paraxial region and a meniscus shape that is convex toward the image sensor (I) in the peripheral region, thereby providing an environment that facilitates reducing the lens length, e.g., 'TTL' of FIG. 5, while also facilitating peripheral curvature correction. In FIG. 16, the object-side surface of the fifth lens (L5) may be indicated as 'S11', and the sensor-side surface of the fifth lens (L5) may be indicated as 'S12'. In FIG. 16, reference numeral 'S13' may indicate the object-side surface of the infrared blocking filter (F), and reference numeral 'S14' may indicate the sensor-side surface of the infrared blocking filter (F).

[0200] According to one embodiment, the object-side surface (S11) of the fifth lens (L5) may include a plurality (e.g., two or four) inflection points (IP). For example, on the object-side surface (S11), a convex area and a concave area may be alternately arranged between a vertex (e.g., a point where the optical axis (O) intersects) and an edge. In one embodiment, when four inflection points (IP) are included, the object-side surface (S11) of the fifth lens (L5) may include two areas of a first shape (e.g., convex shape) and an area of ​​a second shape (e.g., concave shape) arranged between the areas of the first shape. In one embodiment, when the object-side surface (S11) of the fifth lens (L5) includes a plurality (e.g., two) inflection points (IP), an environment can be provided in which curvature in the periphery can be easily corrected.

[0201] According to one embodiment, the sensor-side surface (S12) of the fifth lens (L5) may include at least two inflection points (IP). For example, the area between the optical axis (O) and the inflection point (IP) on the sensor-side surface (S12) of the fifth lens (L5) may have a concave shape, and the area between the inflection point (IP) and the edge of the fifth lens (L5) may have a convex shape. Thus, the fifth lens (L5) may have a meniscus shape that is convex toward the object (S) in the paraxial region, and may have a shape that is tilted toward the object (S) as it approaches the edge in the peripheral region. In one embodiment, the shape of the fifth lens (L5) as described above can provide an environment that facilitates peripheral curvature correction while reducing the lens length (e.g., 'TTL' in FIG. 5) in the camera module (800) and / or lens assembly (LA).

[0202] In the illustrated embodiment, the infrared blocking filter (F) is positioned between the fifth lens (L5) and the image sensor (I) to block light of a specified wavelength band. The term "light of a specified wavelength band" may refer to light of a wavelength that is not visible to the user's naked eye, as previously mentioned, but is detected by a photosensitive material or the image sensor (I).

[0203] According to one embodiment, the camera module (800) and / or lens assembly (LA) may include an aperture (sto) positioned between a first lens (L1) and a second lens (L2). As previously mentioned, "between the first lens (L1) and the second lens (L2)" may be understood to include the sensor side (S3) of the first lens (L1) and the object side (S5) of the second lens (L2). In one embodiment, the specifications or position of the aperture (sto) may determine the brightness of the lens assembly (LA), for example, the F-number (Fno). In one embodiment, by positioning the aperture (sto) between the first lens (L1) and the second lens (L2), optical performance such as securing relative illumination (RI) or controlling aberrations can be stabilized. In one embodiment, the aperture (sto) is positioned between the first lens (L1) and the second lens (L2), thereby making it easy to reduce the overall size of the lens assembly (LA) and / or the outer diameter of the first lens (L1).

[0204] According to one embodiment, a processor (e.g., processor (120) of FIG. 1) or an image signal processor (e.g., image signal processor (260) of FIG. 2) can acquire an image of a subject (e.g., object (S)) by detecting light focused or guided by a lens assembly (LA) using an image sensor (I). In one embodiment, the processor (e.g., processor (120) of FIG. 1) can perform a focus adjustment operation and / or a focal length adjustment operation by moving at least one of the lenses (L1, L2, L3, L4, L5) linearly along the optical axis (O) direction relative to the image sensor (I). In one embodiment, the processor (e.g., processor (120) of FIG. 1) can perform a hand shake correction operation by moving at least one of the lenses (L1, L2, L3, L4, L5) or the image sensor (I) horizontally parallel to a plane substantially perpendicular to the optical axis (O). In one embodiment, the processor may cause an electronic device (e.g., the electronic device of FIGS. 1 to 4 (101, 102, 104, 200, 300)) to receive or detect external light using an image sensor (I) while performing focus adjustment and / or image stabilization operations by executing at least a portion of the instruction(s) stored in memory (e.g., memory (130) of FIGS. 1). For example, instruction(s) that cause the electronic device to receive at least a portion of the light focused by the image sensor (I) and to acquire an image of an object (S) based on the received light may be stored in memory, and such instruction(s) may be executed by the processor(s).

[0205] The camera module (800) and / or its lens assembly (LA) of FIG. 16 may have a focal length of approximately 1.73 mm, an F-number of approximately 2.28, and an angle of view of approximately 120 degrees. In one embodiment, the camera module (800) and / or its lens assembly (LA) may satisfy at least some of the above-described condition(s), including [Equation 1-9]. In one embodiment, the camera module (800) and / or its lens assembly (LA) may be manufactured with the specifications exemplified in the following [Table 9] and may have the aspherical coefficients of [Table 10], [Table 11], and [Table 12].

[0206] Lens Surface (Surf) Radius of Curvature (Radius) Thickness (Thick) Refractive Index (nd) Abbe Number (vd) Sinfinity 400 1 infinity 0.25 21.90 60.18 51.54 40 15 5.91 30.86 60.195 st infinity 0.01 55 8.63 20.48 21.53 55 5.756 -0.97 20.03 77. 7780.161.6707419.2381.9380.1879-4.9720.6671.53555.7510-0.7110.139111.0150.331 .6144425.94120.5430.45713infinity0.111.516864.214infinity0.648imginfinity0.025

[0207] 렌즈면(Surf)2_ASP3_ASP5_ASP6_ASP곡률반경(Radius)1.90611E+008.65569E-018.63156E+00-9.72163E-01K(Conic)0.00000E+00-3.95693E+010.00000E+001.08570E+00A(4th) / C4-3.08511E-029.01612E+00-3.24806E-02-4.52359E-02B(6th) / C51.12397E+01-1.92330E+023.29949E-01-8.46215E+00C(8th) / C6-2.14969E+023.90196E+03-2.17741E+022.64259E+02D(10th) / C72.27894E+03-5.33091E+048.05663E+03-3.70118E+03E(12th) / C8-1.45675E+044.63608E+05-1.39163E+052.89314E+04F(14th) / C95.73571E+04-2.44320E+061.33068E+06-1.35350E+05G(16th) / C10-1.36146E+057.13198E+06-7.24490E+063.76640E+05H(18th) / C111.78722E+05-9.03394E+062.10707E+07-5.76275E+05J(20th) / C12-9.96781E+048.89066E+05-2.54283E+073.74273E+05K(22th) / C130.00000E+000.00000E+000.00000E+000.00000E+00L(24th) / C140.00000E+000.00000E+000.00000E+000.00000E+00M(26th) / C150.00000E+000.00000E+000.00000E+000.00000E+00N(28th) / C160.00000E+000.00000E+000.00000E+000.00000E+00O(30th) / C170.00000E+000.00000E+000.00000E+000.00000E+00

[0208] 렌즈면(Surf)7_ASP8_ASP9_ASP10_ASP곡률반경(Radius)7.77809E+001.93823E+00-4.97233E+00-7.10927E-01K(Conic)0.00000E+00-8.72598E+010.00000E+00-1.26048E+00A(4th) / C4-8.13431E-018.43506E-014.26950E-01-4.01665E-01B(6th) / C5-2.53235E+00-1.37653E+01-3.56638E+003.79249E+00C(8th) / C61.27765E+021.30123E+022.83395E+01-1.79621E+01D(10th) / C7-1.67135E+03-8.40905E+02-1.50654E+024.18282E+01E(12th) / C81.15240E+043.56146E+034.93493E+02-1.94906E+01F(14th) / C9-4.64809E+04-9.59628E+03-9.66518E+02-1.32413E+02G(16th) / C101.10082E+051.57813E+041.10222E+033.21566E+02H(18th) / C11-1.42134E+05-1.44396E+04-6.71668E+02-2.95896E+02J(20th) / C127.73678E+045.63404E+031.66308E+029.93631E+01K(22th) / C130.00000E+000.00000E+000.00000E+000.00000E+00L(24th) / C140.00000E+000.00000E+000.00000E+000.00000E+00M(26th) / C150.00000E+000.00000E+000.00000E+000.00000E+00N(28th) / C160.00000E+000.00000E+000.00000E+000.00000E+00O(30th) / C170.00000E+000.00000E+000.00000E+000.00000E+00

[0209] Lens Surface (Surf)11_ASP12_ASP Radius of Curvature (Radius)1.01522E+005.43233E-01K(Conic)-5.13897E+00-2.24849E+00A(4th) / C4-1.10479E+00-1.50783E+00B(6th) / C54.57076E+ 006.11841E+00C(8th) / C6-1.82183E+01-2.02897E+01D(10th) / C76.47838E+015. 22198E+01E(12th) / C8-2.15538E+02-1.02292E+02F(14th) / C96.45791E+021.5142 5E+02G(16th) / C10-1.58568E+03-1.68846E+02H(18th) / C112.97465E+031.41201 E+02J(20th) / C12-4.10892E+03-8.77659E+01K(22th) / C134.07693E+033.98526E +01L(24th) / C14-2.81789E+03-1.28182E+01M(26th) / C151.28638E+032.76261E+ 00N(28th) / C16-3.48397E+02-3.57525E-01O(30th) / C174.23731E+012.09912E-02

[0210] FIG. 20 is a drawing showing a camera module (900) and / or a lens assembly (LA) according to one embodiment of the present disclosure. FIG. 21 is a graph showing spherical aberration of the lens assembly (LA) of FIG. 20 according to one embodiment of the present disclosure. FIG. 22 is a graph showing astigmatism of the lens assembly (LA) of FIG. 20 according to one embodiment of the present disclosure. FIG. 23 is a graph showing the distortion rate of the lens assembly (LA) of FIG. 21 according to one embodiment of the present disclosure.

[0211] The camera module (900) and / or its lens assembly (LA) of FIG. 20 may have a focal length of approximately 1.73 mm, an F-number of approximately 2.48, and an angle of view of approximately 120 degrees. In one embodiment, the camera module (900) and / or its lens assembly (LA) may satisfy at least some of the above-described condition(s), including [Equation 1-9]. In one embodiment, the camera module (900) and / or its lens assembly (LA) may be manufactured with the specifications exemplified in the following [Table 13] and may have the aspherical coefficients of [Table 14], [Table 15], and [Table 16].

[0212] Lens Surface (Surf) Radius of Curvature (Radius) Thickness (Thick) Refractive Index (nd) Abbe Number (vd) Sinfinity 400 1 infinity 0.25 2 1.9 220.18 5 1.54 40 15 5.9 130.8 110.19 5 st infinity 0.00 55 7.25 20.48 1.53 55 5.75 6 -1.08 10.03 07 5.3 320.1601.6707419.2382.0740.1689-5.9090.6451.53555.7510-0.7480.113110.8470.3001 .6144425.94120.5020.31813infinity0.1101.516864.214infinity0.880imginfinity0.025

[0213] 렌즈면(Surf)2_ASP3_ASP5_ASP6_ASP곡률반경(Radius)1.92165E+008.10744E-017.25201E+00-1.08139E+00K(Conic)0.00000E+00-1.15375E+010.00000E+001.56691E+00A(4th) / C44.52284E-026.23395E+00-3.46490E-01-6.92091E-01B(6th) / C51.62002E+01-4.84729E+021.72115E+01-5.09407E+00C(8th) / C6-7.27921E+024.27524E+04-1.00961E+033.36768E+02D(10th) / C72.06460E+04-2.32979E+063.18236E+04-6.15170E+03E(12th) / C8-3.83165E+058.24279E+07-5.77038E+055.90121E+04F(14th) / C94.79684E+06-1.98453E+096.22945E+06-3.30978E+05G(16th) / C10-4.16063E+073.35540E+10-3.96839E+071.08835E+06H(18th) / C112.54530E+08-4.05574E+111.37961E+08-1.94794E+06J(20th) / C12-1.10581E+093.52387E+12-2.02077E+081.46763E+06K(22th) / C133.39164E+09-2.18440E+130.00000E+000.00000E+00L(24th) / C14-7.17907E+099.42997E+130.00000E+000.00000E+00M(26th) / C159.97899E+09-2.69431E+140.00000E+000.00000E+00N(28th) / C16-8.19755E+094.58048E+140.00000E+000.00000E+00O(30th) / C173.01604E+09-3.50839E+140.00000E+000.00000E+00

[0214] 렌즈면(Surf)7_ASP8_ASP9_ASP10_ASP곡률반경(Radius)5.33180E+002.07387E+00-5.90910E+00-7.48162E-01K(Conic)0.00000E+00-3.07269E+010.00000E+00-1.17105E+00A(4th) / C4-9.84898E-012.10740E-017.26914E-01-6.17847E-01B(6th) / C5-2.71025E+00-7.15057E+00-5.65421E+006.79740E+00C(8th) / C61.64263E+028.27719E+014.06912E+01-3.85159E+01D(10th) / C7-2.39601E+03-6.52750E+02-2.12122E+021.30961E+02E(12th) / C81.84663E+043.27896E+036.76774E+02-2.65648E+02F(14th) / C9-8.26783E+04-1.01186E+04-1.25504E+032.91057E+02G(16th) / C102.15376E+051.85273E+041.29205E+03-1.19195E+02H(18th) / C11-3.03497E+05-1.84919E+04-6.46310E+02-3.84717E+01J(20th) / C121.79243E+057.75409E+031.00636E+023.34406E+01K(22th) / C130.00000E+000.00000E+000.00000E+000.00000E+00L(24th) / C140.00000E+000.00000E+000.00000E+000.00000E+00M(26th) / C150.00000E+000.00000E+000.00000E+000.00000E+00N(28th) / C160.00000E+000.00000E+000.00000E+000.00000E+00O(30th) / C170.00000E+000.00000E+000.00000E+000.00000E+00

[0215] Lens Surface (Surf)11_ASP12_ASP Radius of Curvature (Radius)8.46554E-015.02410E-01K(Conic)-4.98279E+00-2.12943E+00A(4th) / C4-1.16857E+00-1.73899E+00B(6th) / C53.26148E+ 006.98139E+00C(8th) / C61.00080E+01-2.37300E+01D(10th) / C7-2.21052E+026. 60336E+01E(12th) / C81.52891E+03-1.46909E+02F(14th) / C9-6.39100E+032.5519 5E+02G(16th) / C101.80675E+04-3.39606E+02H(18th) / C11-3.59413E+043.40992 E+02J(20th) / C125.09541E+04-2.54375E+02K(22th) / C13-5.12219E+041.38108E +02L(24th) / C143.56636E+04-5.28379E+01M(26th) / C15-1.63449E+041.34698E+ 01N(28th) / C164.43187E+03-2.05067E+00O(30th) / C17-5.38120E+021.40916E-01

[0216] FIG. 24 is a drawing showing a camera module (1000) and / or a lens assembly (LA) according to one embodiment of the present disclosure. FIG. 25 is a graph showing spherical aberration of the lens assembly (LA) of FIG. 24 according to one embodiment of the present disclosure. FIG. 26 is a graph showing astigmatism of the lens assembly (LA) of FIG. 24 according to one embodiment of the present disclosure. FIG. 27 is a graph showing the distortion rate of the lens assembly (LA) of FIG. 24 according to one embodiment of the present disclosure.

[0217] The camera module (1000) and / or its lens assembly (LA) of FIG. 24 may have a focal length of approximately 1.73 mm, an F-number of approximately 2.28, and an angle of view of approximately 120 degrees. In one embodiment, the camera module (1000) and / or its lens assembly (LA) may satisfy at least some of the above-described condition(s), including [Equation 1-9]. In one embodiment, the camera module (1000) and / or its lens assembly (LA) may be manufactured with the specifications exemplified in the following [Table 17] and may have the aspherical coefficients of [Table 18], [Table 19], and [Table 20].

[0218] Lens Surface (Surf) Radius of Curvature (Radius) Thickness (Thick) Refractive Index (nd) Abbe Number (vd) Sinfinity 400 1 infinity 0.25 21.96 30.18 51.54 40 15 5.91 30.89 50.19 2 stoinfinity 0.01 55 8.30 50.49 11.53 500 55.75 6-1.02 40.030 71 4.3 260.1601.6707419.2382.3400.1649-4.4140.6741.5350055.7510-0.7080.108111.0700.3621 .6144425.94120.5620.40813infinity0.1101.5168064.214infinity0.716imginfinity0.015

[0219] 렌즈면(Surf)2_ASP3_ASP5_ASP6_ASP곡률반경(Radius)1.96296E+008.94680E-018.30508E+00-1.02363E+00K(Conic)0.00000E+00-4.98516E+010.00000E+001.26786E+00A(4th) / C43.84253E-029.83126E+00-1.18976E-011.34068E-01B(6th) / C51.10540E+01-2.24357E+023.93377E+00-6.38040E+00C(8th) / C6-2.13919E+024.71444E+03-2.97947E+021.42154E+02D(10th) / C72.28199E+03-6.68031E+048.74393E+03-1.94692E+03E(12th) / C8-1.46363E+046.09644E+05-1.34749E+051.52793E+04F(14th) / C95.77659E+04-3.45231E+061.17752E+06-7.08895E+04G(16th) / C10-1.37424E+051.13924E+07-5.84738E+061.92629E+05H(18th) / C111.80875E+05-1.89728E+071.52720E+07-2.84293E+05J(20th) / C12-1.01222E+051.06264E+07-1.60725E+071.76776E+05K(22th) / C130.00000E+000.00000E+000.00000E+000.00000E+00L(24th) / C140.00000E+000.00000E+000.00000E+000.00000E+00M(26th) / C150.00000E+000.00000E+000.00000E+000.00000E+00N(28th) / C160.00000E+000.00000E+000.00000E+000.00000E+00O(30th) / C170.00000E+000.00000E+000.00000E+000.00000E+00

[0220] 렌즈면(Surf)7_ASP8_ASP9_ASP10_ASP곡률반경(Radius)1.43259E+012.33975E+00-4.41417E+00-7.07508E-01K(Conic)5.15824E+01-9.72482E+010.00000E+00-1.23452E+00A(4th) / C4-4.26748E-021.03181E+005.73058E-01-4.34065E-01B(6th) / C5-2.04027E+01-2.36623E+01-4.85852E+004.26936E+00C(8th) / C67.69671E+024.78750E+023.74240E+01-2.21327E+01D(10th) / C7-2.02662E+04-7.65304E+03-1.93074E+026.33383E+01E(12th) / C83.62574E+058.69816E+046.19012E+02-8.71614E+01F(14th) / C9-4.45924E+06-6.98025E+05-1.20477E+037.05090E-01G(16th) / C103.83686E+073.99945E+061.38645E+031.61485E+02H(18th) / C11-2.34067E+08-1.65087E+07-8.67132E+02-1.89295E+02J(20th) / C121.01729E+094.91619E+072.25830E+026.95749E+01K(22th) / C13-3.12822E+09-1.04629E+080.00000E+000.00000E+00L(24th) / C146.64989E+091.55195E+080.00000E+000.00000E+00M(26th) / C15-9.29562E+09-1.52395E+080.00000E+000.00000E+00N(28th) / C167.68767E+098.90356E+070.00000E+000.00000E+00O(30th) / C17-2.85003E+09-2.34298E+070.00000E+000.00000E+00

[0221] Lens Surface (Surf)11_ASP12_ASP Radius of Curvature (Radius)1.06993E+005.61781E-01K(Conic)-3.61390E+00-1.96675E+00A(4th) / C4-1.18032E+00-1.57914E+00B(6th) / C54.64120E+ 005.94927E+00C(8th) / C6-1.82340E+01-1.85454E+01D(10th) / C76.73608E+014. 55289E+01E(12th) / C8-2.42131E+02-8.57460E+01F(14th) / C97.82646E+021.2255 0E+02G(16th) / C10-2.02000E+03-1.32282E+02H(18th) / C113.88850E+031.07272 E+02J(20th) / C12-5.42396E+03-6.47143E+01K(22th) / C135.37967E+032.85213E +01L(24th) / C14-3.69232E+03-8.89656E+00M(26th) / C151.66618E+031.85642E+ 00N(28th) / C16-4.44637E+02-2.32038E-01O(30th) / C175.31625E+011.31154E-02

[0222] The calculated values ​​of the [Equations] regarding the above-described camera module (400, 500, 600, 700, 800, 900, 1000) and / or lens assembly (LA) are listed in [Table 21] below. As described in [Table 21], the camera module (400, 500, 600, 700, 800, 900, 1000) and / or lens assembly (LA) according to the embodiment(s) of the present disclosure may satisfy at least some of the above-described conditions including the [Equations]. For example, the camera module (400, 500, 600, 700, 800, 900, 1000) and / or lens assembly (LA) according to the embodiment(s) of the present disclosure may provide improved wide-angle performance or improved ultra-wide-angle performance while being miniaturized.

[0223] Embodiment of FIG. 7 Embodiment of FIG. 11 Embodiment of FIG. 16 Embodiment of FIG. 20 Embodiment of FIG. 24 Mathematical Formula 10.910.910.880.860.91 Mathematical Formula 20.30.30.310.30.29 Mathematical Formula 3120120120120120 Mathematical Formula 40.0440.0440.0460.0470.044 Mathematical Formula 52.282.482.282.482.28 Mathematical Formula 60.961.031.331.41.00 Mathematical Formula 7; Dis-V0.360.360.360.360.36 Mathematical Formula 7; Dis-H0.630.630.610.630.63 Mathematical Formula 7; Dis-F-33.3-33.3-33.5-33-33.3 Mathematical Formula 80.750.780.810.840.72 Mathematical Formula 90.280.280.260.280.28

[0224] As described above, a camera module according to the embodiment(s) of the present disclosure (e.g., the camera module of FIG. 1 to 5, FIG. 7, FIG. 11, FIG. 15, FIG. 16, FIG. 20 and / or FIG. 24 (180, 280, 305, 312, 313, 400, 500, 600, 700, 800, 900, 1000)) and / or an electronic device including the same (e.g., the electronic device of FIG. 1 to 4 (101, 102, 104, 300)) is easy to miniaturize and can provide wide-angle characteristics or ultra-wide-angle characteristics. In one embodiment, the camera module and / or the electronic device including the same may acquire or provide high-quality images by having optical performance suitable for a high-performance image sensor (e.g., image sensor (I) of FIG. 5, FIG. 7, FIG. 11, FIG. 15, FIG. 16, FIG. 20 and / or FIG. 24).

[0225] The effects obtainable from the present disclosure are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art to which the present disclosure belongs from the description of the above-described embodiment(s).

[0226] According to one embodiment of the present disclosure, a camera module (e.g., the camera module of FIG. 1 to 5, FIG. 7, FIG. 11, FIG. 15, FIG. 16, FIG. 20 and / or FIG. 24 (180, 280, 305, 312, 313, 400, 500, 600, 700, 800, 900, 1000)) comprises an image sensor (e.g., the image sensor (I) of FIG. 5, FIG. 7, FIG. 11, FIG. 15, FIG. 16, FIG. 20 and / or FIG. 24), and a lens assembly configured to focus or guide light to the image sensor by including at least five lenses sequentially aligned along an optical axis (e.g., the optical axis (O) of FIG. 7, FIG. 11, FIG. 16, FIG. 20 and / or FIG. 24) from a first lens furthest from the image sensor (e.g., the image sensor (I) of FIG. 5, FIG. 7, FIG. 11, FIG. 16, FIG. 20 and / or FIG. 24). It may include a lens assembly (LA) of FIG. 5, FIG. 7, FIG. 11, FIG. 15, FIG. 16, FIG. 20 and / or FIG. 24. In one embodiment, the lens assembly or the at least five lenses may include: the first lens having a negative refractive power and a meniscus shape convex toward the object; the n-3 lens having a positive refractive power and positioned fourth closest to the image sensor; the n-2 lens having a negative refractive power and a concave sensor-side surface and positioned third closest to the image sensor; the n-1 lens having a positive refractive power and a concave object-side surface and a convex sensor-side surface and positioned second closest to the image sensor; and the n lens having a negative refractive power and a meniscus shape convex toward the object in the paraxial region, having at least one inflection point on at least the sensor-side surface among the object-side surface and the sensor-side surface, and positioned closest to the image sensor. In one embodiment, the lens assembly may satisfy the following [conditions 1, 2, 3, and 4].

[0227] [Condition 1]

[0228] TTL / (IH*2) <= 0.92

[0229] (Here, 'TTL' is the distance from the upper surface (e.g., upper surface (TS) in FIG. 5) of the barrel of the lens assembly (e.g., barrel (B) in FIG. 5) to the image sensor, and 'IH' is the maximum image height of the image sensor.)

[0230] [Condition 2]

[0231] 0.2 <= L1-ape / IH <= 0.4

[0232] (Here, 'L1-ape' is the effective radius of the first lens)

[0233] [Condition 3]

[0234] 110 <= FOV <= 140

[0235] (Here, 'FOV' is the angle of view of the lens assembly)

[0236] [Condition 4]

[0237] LL3T / OAL <= 0.05

[0238] (Here, the thickness of the n-2 lens is, and 'OAL' is the distance measured along the optical axis from the object side of the first lens to the sensor side of the n lens.)

[0239] According to one embodiment, the lens assembly may satisfy the following [Equations 5 and 6] regarding the F-number 'Fno', the focal length 'F2' of the n-3rd lens, and the total focal length 'efl'.

[0240] [Condition 5]

[0241] 2.0 <= Fno <= 2.5

[0242] [Condition 6]

[0243] 0.8<= F2 / efl <= 3.0

[0244] According to one embodiment, the at least five lenses may further include an n-4 lens having a negative refractive power, which is positioned between the first lens and the n-3 lens.

[0245] According to one embodiment, the lens assembly can satisfy the following [Equations 7 and 8] regarding the F-number 'Fno', the combined focal length 'F2' of the n-4th lens and the n-3rd lens, and the total focal length 'efl'.

[0246] [Condition 7]

[0247] 2.0 <= Fno <= 2.5

[0248] [Condition 8]

[0249] 0.8<= F2 / efl <= 3.0

[0250] According to one embodiment, the n-4 lens has a negative refractive power and may have a meniscus shape including a convex object-side surface and a concave sensor-side surface.

[0251] According to one embodiment, the lens assembly can satisfy the following [Equation 7] regarding the distortion rate.

[0252] [Condition 7]

[0253] 0.33 <= Dis-V

[0254] 0.58 <= Dis-H

[0255] -49% <= Dis-F <= -27%

[0256] (Here, 'Dis-F' is the distortion rate based on the stereographic distortion mapping function at 1.0F, 'Dis-V' is the ratio of the distortion rate based on the stereographic distortion mapping function at 0.6F to Dis-F, and 'Dis-H' is the ratio of the distortion rate based on the stereographic distortion mapping function at 0.8F to Dis-F.)

[0257] According to one embodiment, the lens assembly may satisfy the following [conditions 8 and 9].

[0258] [Condition 8]

[0259] 0.1 <= |(LL2S1R-LL2S2R) / (LL2S1R+LL2S2R)| <= 1.0

[0260] [Condition 9]

[0261] LL2T / TA <= 0.3

[0262] (Here, 'LL2S1R' is the radius of curvature of the object-side surface of the n-1 lens, 'LL2S2R' is the radius of curvature of the sensor-side surface of the n-1 lens, 'LL2T' is the thickness of the n-1 lens, and 'TA' is the distance measured from the object-side surface of the first lens to the sensor-side surface of the n-th lens along the optical axis.)

[0263] According to one embodiment, the camera module and / or lens assembly as described above may further include an aperture (e.g., the aperture (sto) of FIG. 7, FIG. 11, FIG. 16, FIG. 20 and / or FIG. 24) disposed between the first lens and the n-3 lens.

[0264] According to one embodiment, the n-th lens may have a refractive index of 1.6 or higher.

[0265] According to one embodiment, the n-2nd lens includes a concave sensor side surface and may have a refractive index of 1.6 or higher.

[0266] According to one embodiment, the camera module described above may be configured to correct distortion through image processing based on a stereographic distortion mapping function.

[0267] According to one embodiment of the present disclosure, an electronic device (e.g., the electronic device (101, 102, 104, 300) of FIGS. 1 to 4) comprises an image sensor (e.g., the image sensor (I) of FIGS. 5, FIG. 7, FIG. 11, FIG. 15, FIG. 16, FIG. 20 and / or FIG. 24), a lens assembly (e.g., the lens assembly (LA) of FIG. 5, FIG. 7, FIG. 11, FIG. 16, FIG. 20 and / or FIG. 24) configured to focus or guide light to the image sensor by including at least five lenses sequentially aligned along an optical axis (e.g., the optical axis (O) of FIG. 7, FIG. 11, FIG. 16, FIG. 20 and / or FIG. 24) from a first lens furthest from the image sensor, at least one processor (e.g., the processor (120) of FIG. 1 or the image signal processor (260) of FIG. 2), and When executed by at least one processor, the electronic device may include a memory (e.g., memory of FIG. 1 or FIG. 2 (130, 250)) in which instructions configured to acquire an image of a subject using the image sensor and correct distortion through image processing based on a stereographic distortion mapping function are stored.In one embodiment, the lens assembly or the at least five lenses may include: the first lens having a negative refractive power and a meniscus shape convex toward the object; the n-3 lens having a positive refractive power and positioned fourth closest to the image sensor; the n-2 lens having a negative refractive power and a concave sensor-side surface and positioned third closest to the image sensor; the n-1 lens having a positive refractive power and a concave object-side surface and a convex sensor-side surface and positioned second closest to the image sensor; and the n lens having a negative refractive power and a meniscus shape convex toward the object in the paraxial region, and having at least one inflection point on at least the sensor-side surface among the object-side surface and the sensor-side surface and positioned closest to the image sensor. In one embodiment, the lens assembly may satisfy the following [Conditions 1, 2, 3, and 4].

[0268] [Condition 1]

[0269] TTL / (IH*2) <= 0.92

[0270] (Here, 'TTL' is the distance from the upper surface (e.g., upper surface (TS) in FIG. 5) of the barrel of the lens assembly (e.g., barrel (B) in FIG. 5) to the image sensor, and 'IH' is the maximum image height of the image sensor.)

[0271] [Condition 2]

[0272] 0.2 <= L1-ape / IH <= 0.4

[0273] (Here, 'L1-ape' is the effective radius of the first lens)

[0274] [Condition 3]

[0275] 110 <= FOV <= 140

[0276] (Here, 'FOV' is the angle of view of the lens assembly)

[0277] [Condition 4]

[0278] LL3T / OAL <= 0.05

[0279] (Here, the thickness of the n-2 lens is, and 'OAL' is the distance measured along the optical axis from the object side of the first lens to the sensor side of the n lens.)

[0280] According to one embodiment, the lens assembly may satisfy the following [Equations 5 and 6] regarding the F-number 'Fno', the focal length 'F2' of the n-3rd lens, and the total focal length 'efl'.

[0281] [Condition 5]

[0282] 2.0 <= Fno <= 2.5

[0283] [Condition 6]

[0284] 0.8<= F2 / efl <= 3.0

[0285] According to one embodiment, the at least five lenses may further include an n-4 lens having a negative refractive power, which is disposed between the first lens and the n-3 lens. In one embodiment, the lens assembly may satisfy the following [Equations 7 and 8] regarding the F-number 'Fno', the combined focal length 'F2' of the n-4 lens and the n-3 lens, and the total focal length 'efl'.

[0286] [Condition 7]

[0287] 2.0 <= Fno <= 2.5

[0288] [Condition 8]

[0289] 0.8<= F2 / efl <= 3.0

[0290] According to one embodiment, the n-4 lens has a negative refractive power and may have a meniscus shape including a convex object-side surface and a concave sensor-side surface.

[0291] According to one embodiment, the lens assembly can satisfy the following [Equation 7] regarding the distortion rate.

[0292] [Condition 7]

[0293] 0.33 <= Dis-V

[0294] 0.58 <= Dis-H

[0295] -49% <= Dis-F <= -27%

[0296] (Here, 'Dis-F' is the distortion rate based on the stereographic distortion mapping function at 1.0F, 'Dis-V' is the ratio of the distortion rate based on the stereographic distortion mapping function at 0.6F to Dis-F, and 'Dis-H' is the ratio of the distortion rate based on the stereographic distortion mapping function at 0.8F to Dis-F.)

[0297] According to one embodiment, the lens assembly may satisfy the following [conditions 8 and 9].

[0298] [Condition 8]

[0299] 0.1 <= |(LL2S1R-LL2S2R) / (LL2S1R+LL2S2R)| <= 1.0

[0300] [Condition 9]

[0301] LL2T / TA <= 0.3

[0302] (Here, 'LL2S1R' is the radius of curvature of the object-side surface of the n-1 lens, 'LL2S2R' is the radius of curvature of the sensor-side surface of the n-1 lens, 'LL2T' is the thickness of the n-1 lens, and 'TA' is the distance measured from the object-side surface of the first lens to the sensor-side surface of the n-th lens along the optical axis.)

[0303] According to one embodiment, the electronic device and / or lens assembly as described above may further include an aperture (e.g., the aperture (sto) of FIG. 7, FIG. 11, FIG. 16, FIG. 20 and / or FIG. 24) disposed between the first lens and the n-3 lens.

[0304] According to one embodiment, the n-th lens may have a refractive index of 1.6 or higher.

[0305] According to one embodiment, the n-2nd lens includes a concave sensor side surface and may have a refractive index of 1.6 or higher.

[0306] Although the present disclosure has been described by way of example with respect to one embodiment, it should be understood that the embodiment is for illustrative purposes only and is not intended to limit the present disclosure. It will be obvious to those skilled in the art that various changes in form and detailed configuration may be made without departing from the whole context of the present disclosure, including the appended claims and their equivalents.

Claims

In a camera module (180; 280; 305; 312; 313; 400; 500; 600; 700; 800; 900; 1000), Image sensor (I); and A lens assembly (LA) configured to focus or guide light to an image sensor by including at least five lenses (L1, ...Ln-2, ​​Ln-1, Ln) (where 'n' is a natural number greater than or equal to 5) sequentially aligned along an optical axis (O) starting from a first lens (L1) farthest from the image sensor, and The lens assembly or the at least five lenses are, The first lens having a negative refractive power and a meniscus shape that is convex toward the object; The n-3rd lens having a defined refractive power and positioned fourth closest to the image sensor; A second lens having a negative refractive power and including a concave sensor side surface, positioned third closest to the image sensor; An n-1 lens having a defined refractive power and including a concave object-side surface and a convex sensor-side surface, positioned second closest to the image sensor; and It includes a meniscus shape having negative refractive power and convex toward the object side in the paraxial region, and includes at least one inflection point (IP) on at least the sensor side among the object side surface and the sensor side surface, and includes an n-th lens positioned closest to the image sensor. The above lens assembly is a camera module satisfying the following [conditions 1, 2, 3, and 4], [Condition 1] TTL / (IH*2) <= 0.92 (Here, 'TTL' is the distance from the upper surface (TS) of the barrel (B) of the lens assembly to the image sensor, and 'IH' is the maximum height of the image sensor.) [Condition 2] 0.2 <= L1-ape / IH <= 0.4 (Here, 'L1-ape' is the effective radius of the first lens) [Condition 3] 110 <= FOV <= 140 (Here, 'FOV' is the angle of view of the lens assembly) [Condition 4] LL3T / OAL <= 0.05 (Here, the thickness of the n-2 lens is, and 'OAL' is the distance measured along the optical axis from the object side of the first lens to the sensor side of the n lens). In claim 1, the lens assembly is a camera module satisfying the following [Equations 5 and 6] regarding the F-number 'Fno', the focal length 'F2' of the n-3rd lens, and the total focal length 'efl', [Condition 5] 2.0 <= Fno <= 2.5 [Condition 6] 0.8<= F2 / efl <= 3.

0. In claim 1, the at least 5 lenses are, A camera module further comprising an n-4 lens having negative refractive power, positioned between the first lens and the n-3 lens. In claim 3, the lens assembly is a camera module satisfying the following [Equations 7 and 8] regarding the F-number 'Fno', the combined focal length 'F2' of the n-4th lens and the n-3rd lens, and the total focal length 'efl', [Condition 7] 2.0 <= Fno <= 2.5 [Condition 8] 0.8<= F2 / efl <= 3.

0. A camera module according to any one of claims 3 to 4, wherein the n-4th lens has negative refractive power and has a meniscus shape including a convex object-side surface and a concave sensor-side surface. In any one of claims 1 to 5, the lens assembly is a camera module satisfying the following [Condition 7] regarding the distortion rate, [Condition 7] 0.33 <= Dis-V 0.58 <= Dis-H -49% <= Dis-F <= -27% (Here, 'Dis-F' is the distortion rate based on the stereographic distortion mapping function at 1.0F, 'Dis-V' is the ratio of the distortion rate based on the stereographic distortion mapping function at 0.6F to Dis-F, and 'Dis-H' is the ratio of the distortion rate based on the stereographic distortion mapping function at 0.8F to Dis-F). In claim 6, the lens assembly is a camera module satisfying the following [conditions 8 and 9], [Condition 8] 0.1 <= |(LL2S1R-LL2S2R) / (LL2S1R+LL2S2R)| <= 1.0 [Condition 9] LL2T / TA <= 0.3 (Here, 'LL2S1R' is the radius of curvature of the object-side surface of the n-1 lens, 'LL2S2R' is the radius of curvature of the sensor-side surface of the n-1 lens, 'LL2T' is the thickness of the n-1 lens, and 'TA' is the distance measured from the object-side surface of the first lens to the sensor-side surface of the n-th lens along the optical axis). In any one of paragraphs 1 through 7, A camera module further comprising an aperture (sto) disposed between the first lens and the n-3 lens. In any one of claims 1 to 8, the nth lens is a camera module having a refractive index of 1.6 or higher. A camera module according to any one of claims 1 to 9, wherein the n-2nd lens includes a concave sensor side surface and has a refractive index of 1.6 or higher. A camera module configured to correct distortion through image processing based on a stereographic distortion mapping function, in any one of claims 1 to 10. In an electronic device (101; 102; 104; 300), A camera module according to any one of claims 1 to 11; At least one processor (120; 260); and An electronic device comprising a memory (130; 250) in which instructions configured to cause the electronic device to acquire an image of a subject using the image sensor are stored when executed by the above-mentioned at least one processor.

Images