Lens assembly and electronic device including the same

Abstract

According to an embodiment of the present disclosure, a lens assembly may include: an image sensor; and seven lenses sequentially arranged along the optical axis in a direction toward the image sensor, a lens includes a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, a fourth lens having a negative refractive power, a fifth lens having a positive refractive power, a sixth lens having a positive refractive power, and a seventh lens having a negative refractive power. By satisfying the conditional expression presented by the embodiments, the lens assembly may be reduced in size while providing optical performance comparable to that of a magnified high-pixel image sensor. Various other embodiments are also possible.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to a lens assembly (eg, a lens assembly including a plurality of lenses) and an electronic device including the lens assembly. Background Art

[0002] Optical devices such as cameras capable of capturing images or videos have been widely used, and in recent years digital cameras or video cameras having solid-state sensors such as charge coupled devices (CCDs) or complementary metal oxide semiconductors (CMOSs) have become popular. Optical devices having solid-state sensors (CCDs or CMOSs) have gradually replaced film-based optical devices because optical devices having solid-state sensors allow images to be stored, copied, and moved more easily than film-based optical devices.

[0003] Recently, multiple optical devices (e.g., two or more selected cameras among a close-up camera, a telephoto camera, and / or a wide-angle camera) have been installed in a single electronic device to improve the quality of a captured image and provide various visual effects to the captured image. For example, multiple cameras having different optical characteristics can be used to acquire images of an object and synthesize the images of the object into a high-quality captured image. As electronic devices such as mobile communication terminals or smartphones are equipped with multiple optical devices (e.g., cameras) and thus acquire high-quality captured images, they are gradually replacing electronic devices dedicated to 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 above information is presented as background information only to assist with an understanding of the present disclosure. No determination has been made, and no assertion is made, as to whether any of the above may be applicable as prior art with respect to the present disclosure. Summary of the invention

[0005] Technical Solution

[0006] According to an embodiment of the present disclosure, a lens assembly may include: an image sensor; and seven lenses, arranged in sequence along an optical axis in a direction toward the image sensor, and including a first lens having positive refractive power, a second lens having negative refractive power, a third lens having positive refractive power, a fourth lens having negative refractive power, a fifth lens having positive refractive power, a sixth lens having positive refractive power, and a seventh lens having negative refractive power. In an embodiment, the lens assembly may satisfy the following conditional expressions 1 to 3.

[0007] Conditional expression 1: 1≤efl / f1≤2

[0008] Conditional expression 2: 1.3 ≤ Fno ≤ 1.7

[0009] Conditional expression 3: 0.59≤TTL / (ImgH×2)≤0.68

[0010] Here, 'efl' may be the effective focal length of the lens assembly, 'f1' may be the focal length of the first lens, 'Fno' may be the F-number of the lens assembly, 'TTL' may be the distance from the object-side surface of the first lens to the image sensor, and 'ImgH' may be the maximum distance from the optical axis to the edge of the imaging plane of the image sensor.

[0011] According to an embodiment of the present disclosure, an electronic device may include a lens assembly and a processor configured to acquire an image of an object using the lens assembly. The lens assembly includes: an image sensor; and seven lenses, arranged in sequence along an optical axis in a direction toward the image sensor, and including a first lens having positive refractive power, a second lens having negative refractive power, a third lens having positive refractive power, a fourth lens having negative refractive power, a fifth lens having positive refractive power, a sixth lens having positive refractive power, and a seventh lens having negative refractive power. In an embodiment, the lens assembly may satisfy the following conditional expressions 7 to 9.

[0012] Conditional expression 7: 1≤efl / f1≤2

[0013] Conditional expression 8: 1.3 ≤ Fno ≤ 1.7

[0014] Conditional expression 9: 0.59 ≤ TTL / (ImgH×2) ≤ 0.68

[0015] Here, 'efl' may be the effective focal length of the lens assembly, 'f1' may be the focal length of the first lens, 'Fno' may be the F-number of the lens assembly, 'TTL' may be the distance from the object-side surface of the first lens to the image sensor, and 'ImgH' may be the maximum distance from the optical axis to the edge of the imaging plane of the image sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above or other aspects, configurations and / or advantages of embodiments of the present disclosure will become apparent from the following detailed description with reference to the accompanying drawings.

[0017] Figure 1 is a block diagram illustrating electronic devices in a network environment according to an embodiment of the present disclosure.

[0018] Figure 2 is a block diagram illustrating an exemplary camera module according to an embodiment of the present disclosure.

[0019] Figure 3 is a front perspective view showing an electronic device according to an embodiment of the present disclosure.

[0020] Figure 4 The present invention is shown in the embodiment of the present invention. Figure 3 A rear perspective view of an electronic device.

[0021] Figure 5 is a diagram illustrating a lens assembly according to an embodiment of the present disclosure.

[0022] Figure 6 The present invention is shown in the embodiment of the present invention. Figure 5 A graph of the spherical aberration of a lens assembly.

[0023] Figure 7 The present invention is shown in the embodiment of the present invention. Figure 5 A graph of the astigmatism of a lens assembly.

[0024] Figure 8 The present invention is shown in the embodiment of the present invention. Figure 5 A graph of the distortion rate of a lens assembly.

[0025] Fig. 9 is a diagram illustrating a lens assembly according to an embodiment of the present disclosure.

[0026] Fig.10 The present invention is shown in the embodiment of the present invention. Fig. 9 A graph of the spherical aberration of a lens assembly.

[0027] Fig.11 The present invention is shown in the embodiment of the present invention. Fig. 9 A graph of the astigmatism of a lens assembly.

[0028] Fig.12 The present invention is shown in the embodiment of the present invention. Fig. 9 A graph of the distortion rate of a lens assembly.

[0029] Fig.13 is a diagram illustrating a lens assembly according to an embodiment of the present disclosure.

[0030] Fig.14 The present invention is shown in the embodiment of the present invention. Fig.13 A graph of the spherical aberration of a lens assembly.

[0031] Fig.15 The present invention is shown in the embodiment of the present invention. Fig.13 A graph of the astigmatism of a lens assembly.

[0032] Fig.16 The present invention is shown in the embodiment of the present invention. Fig.13 A graph of the distortion rate of a lens assembly.

[0033] Throughout the drawings, like reference numerals may be assigned to like parts, components and / or structures. DETAILED DESCRIPTION

[0034] As described above, a single miniaturized electronic device may include a standard camera, a wide-angle (or ultra-wide-angle) camera, a close-up camera, and / or a telephoto camera to obtain multiple images of an object and synthesize the multiple images of the object into a high-quality image. Cameras or lens assemblies may be classified as standard cameras, wide-angle (or ultra-wide-angle) cameras, close-up cameras, and / or telephoto cameras based on their field of view (or focal length). When multiple cameras are mounted on a portable electronic device such as a smart phone, it may be difficult to ensure the optical performance of the camera or lens assembly. For example, as electronic devices become smaller, there may be more restrictions on the size or shape of the lens assembly. Although solid-state image sensors are rapidly developing in size and performance, it is difficult to improve the optical performance of the lens assembly due to this undesirable installation environment. On the other hand, it may be difficult to ensure mass production while suppressing the increase in manufacturing costs caused by the increase in the number of lens assemblies mounted on a single electronic device.

[0035] Embodiments of the present disclosure, which aim to solve at least the above-mentioned problems and / or disadvantages and provide at least the advantages described below, may provide a miniaturized lens assembly and / or an electronic device including the lens assembly while providing good optical performance.

[0036] Embodiments of the present disclosure may provide a lens assembly and / or an electronic device including the lens assembly, the lens assembly providing optical performance improved to the extent that performance requirements of a high-performance image sensor may be met.

[0037] The technical objectives achieved by the present disclosure are not limited to the above-mentioned technical objectives, and those skilled in the art can clearly understand other unmentioned technical objectives from the following description.

[0038] The following description of the accompanying drawings can provide an understanding of various exemplary implementations of the present disclosure, including the claims and their equivalents. The exemplary embodiments disclosed in the following description include various specific details to assist understanding, but will be considered as one of the various exemplary embodiments. Therefore, those skilled in the art will understand that various changes and modifications may be made to the various implementations described herein without departing from the scope and spirit of the present disclosure. In addition, for the sake of clarity and brevity, descriptions of well-known functions and configurations will be avoided.

[0039] The terms and words used in the following description and claims are not limited to the meanings of their references, but may be used to clearly and consistently describe the embodiments of the present disclosure. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of the present disclosure, which are intended to be consistent with the claims, is provided for illustrative purposes only and not for limiting purposes.

[0040] Unless the context clearly indicates otherwise, it should be understood that singular expressions such as "a", "an", and "the" include plural referents. Thus, for example, "a component surface" may mean including one or more of the surfaces of the component.

[0041] Figure 1 1 is a block diagram showing an electronic device 101 in a network environment 100 according to an embodiment of the present disclosure. Figure 1 , the electronic device 101 in the network environment 100 may communicate with the electronic device 102 via the first network 198 (e.g., a short-range wireless communication network), or communicate with at least one of the electronic device 104 or the server 108 via the second network 199 (e.g., a long-range wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 via the server 108. According to an embodiment, the electronic device 101 may include a processor 120, a memory 130, an input module 150, a sound output module 155, a display module 160, an audio module 170, a sensor module 176, an interface 177, a connection terminal 178, a haptic module 179, a camera module 180, a power management module 188, a battery 189, a communication module 190, a user identification module (SIM) 196, or an antenna module 197. In some embodiments, at least one of the above components (e.g., the connection terminal 178) may be omitted from the electronic device 101, or one or more other components may be added to the electronic device 101. In some embodiments, some of the above-described components (eg, sensor module 176, camera module 180, or antenna module 197) may be implemented as a single integrated component (eg, display module 160).

[0042] The processor 120 may run, for example, software (e.g., program 140) to control at least one other component (e.g., hardware component or software component) of the electronic device 101 connected to the processor 120, and may perform various data processing or calculations. According to an embodiment, as at least part of the data processing or calculation, the processor 120 may store a command or data received from another component (e.g., sensor module 176 or communication module 190) in the volatile memory 132, process the command or data stored in the volatile memory 132, and store the resultant data in the non-volatile memory 134. According to an embodiment, the processor 120 may include a main processor 121 (e.g., a central processing unit (CPU) or an application processor (AP)) or an auxiliary processor 123 (e.g., a graphics processing unit (GPU), a neural processing unit (NPU), an image signal processor (ISP), a sensor hub processor, or a communication processor (CP)) that is operationally independent or combined with the main processor 121. For example, when the electronic device 101 includes a main processor 121 and an auxiliary processor 123, the auxiliary processor 123 may be adapted to consume less power than the main processor 121, or adapted to be dedicated to a specific function. The auxiliary processor 123 may be implemented separately from the main processor 121, or as part of the main processor 121.

[0043] When the main processor 121 is in an inactive (e.g., sleep) state, the auxiliary processor 123 (rather than the main processor 121) may control at least some of the functions or states related to at least one component among the components of the electronic device 101 (e.g., the display module 160, the sensor module 176, or the communication module 190), or when the main processor 121 is in an active state (e.g., running an application), the auxiliary processor 123 may control at least some of the functions or states related to at least one component among the components of the electronic device 101 (e.g., the display module 160, the sensor module 176, or the communication module 190) together with the main processor 121. According to an embodiment, the auxiliary processor 123 (e.g., an image signal processor or a communication processor) may be implemented as part of another component (e.g., a camera module 180 or a communication module 190) that is functionally related to the auxiliary processor 123. According to an embodiment, the auxiliary processor 123 (e.g., a neural processing unit) may include a hardware structure dedicated to artificial intelligence model processing. The artificial intelligence model may be generated by machine learning. For example, such learning may be performed by the electronic device 101 where the artificial intelligence is executed or via a separate server (e.g., server 108). The learning algorithm may include, but is not limited to, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, for example. The artificial intelligence model may include multiple artificial neural network layers. The artificial neural network may be a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), or a deep Q network or a combination of two or more thereof, but is not limited thereto. Additionally or alternatively, the artificial intelligence model may include a software structure in addition to a hardware structure.

[0044] The memory 130 may store various data used by at least one component of the electronic device 101 (e.g., the processor 120 or the sensor module 176). The various data may include, for example, software (e.g., the program 140) and input data or output data for commands related thereto. The memory 130 may include a volatile memory 132 or a nonvolatile memory 134.

[0045] The program 140 may be stored as software in the memory 130 , and may include, for example, an operating system (OS) 142 , middleware 144 , or applications 146 .

[0046] The input module 150 may receive commands or data to be used by other components (e.g., the processor 120) of the electronic device 101 from outside (e.g., a user) of the electronic device 101. The input module 150 may include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus).

[0047] The sound output module 155 can output sound signals to the outside of the electronic device 101. The sound output module 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as playing multimedia or playing records. The receiver can be used to receive incoming calls. Depending on the embodiment, the receiver can be implemented as a separate part from the speaker, or as part of the speaker.

[0048] The display module 160 may visually provide information to the outside of the electronic device 101 (e.g., a user). The display device 160 may include, for example, a display, a holographic device, or a projector, and a control circuit for controlling a corresponding one of the display, the holographic device, and the projector. According to an embodiment, the display module 160 may include a touch sensor adapted to detect a touch or a pressure sensor adapted to measure the strength of a force caused by a touch.

[0049] The audio module 170 can convert sound into an electrical signal, or vice versa. According to an embodiment, the audio module 170 can obtain sound via the input module 150, or output sound via the sound output module 155 or an earphone of an external electronic device (e.g., electronic device 102) directly (e.g., wired) or wirelessly connected to the electronic device 101.

[0050] The sensor module 176 may detect an operating state (e.g., power or temperature) of the electronic device 101 or an environmental state (e.g., a user's state) outside the electronic device 101, and then generate an electrical signal or data value corresponding to the detected state. Depending on the embodiment, the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illumination sensor.

[0051] The interface 177 may support one or more specific protocols to be used to connect the electronic device 101 directly (e.g., wired) or wirelessly to an external electronic device (e.g., the electronic device 102). According to an embodiment, the interface 177 may include, for example, a high-definition multimedia interface (HDMI), a universal serial bus (USB) interface, a secure digital (SD) card interface, or an audio interface.

[0052] The connection end 178 may include a connector, wherein the electronic device 101 can be physically connected to an external electronic device (e.g., the electronic device 102) via the connector. According to an embodiment, the connection end 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0053] The haptic module 179 may convert the electrical signal into mechanical stimulation (eg, vibration or motion) or electrical stimulation that can be recognized by the user via his sense of touch or kinesthetic sense. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulator.

[0054] The camera module 180 may capture still images or moving images. According to an embodiment, the camera module 180 may include one or more lenses, an image sensor, an image signal processor, or a flash.

[0055] The power management module 188 may manage power supply to the electronic device 101. According to an embodiment, the power management module 188 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0056] The battery 189 may power at least one component of the electronic device 101. According to an embodiment, the battery 189 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0057] The communication module 190 may support establishing a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (e.g., electronic device 102, electronic device 104, or server 108), and perform communication via the established communication channel. The communication module 190 may include one or more communication processors capable of operating independently from the processor 120 (e.g., an application processor (AP)) and supporting direct (e.g., wired) communication or wireless communication. According to an embodiment, the communication module 190 may include a wireless communication module 192 (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (e.g., a local area network (LAN) communication module or a power line communication (PLC) module). A corresponding one of these communication modules can communicate with an external electronic device via a first network 198 (e.g., a short-range communication network such as Bluetooth, Wireless Fidelity (Wi-Fi) Direct, or Infrared Data Association (IrDA)) or a second network 199 (e.g., a long-range communication network such as a traditional cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or a wide area network (WAN))). These various types of communication modules can be implemented as a single component (e.g., a single chip), or these various types of communication modules can be implemented as multiple components separated from each other (e.g., multiple chips). The wireless communication module 192 can identify and authenticate the electronic device 101 in a communication network (such as the first network 198 or the second network 199) using user information (e.g., an International Mobile Subscriber Identity (IMSI)) stored in the user identification module 196.

[0058] The wireless communication module 192 can support 5G networks after 4G networks and next-generation communication technologies (e.g., new radio (NR) access technology). NR access technology can support enhanced mobile broadband (eMBB), massive machine type communication (mMTC), or ultra-reliable low-latency communication (URLLC). The wireless communication module 192 can support high-frequency bands (e.g., millimeter wave bands) to achieve, for example, high data transmission rates. The wireless communication module 192 can support various technologies for ensuring performance on high-frequency bands, such as, for example, beamforming, massive multiple-input multiple-output (massive MIMO), full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, or massive antennas. The wireless communication module 192 can support various requirements specified in the electronic device 101, an external electronic device (e.g., electronic device 104), or a network system (e.g., a second network 199). Depending on the embodiment, the wireless communication module 192 may support a peak data rate for implementing eMBB (e.g., 20 Gbps or greater), loss coverage for implementing mMTC (e.g., 164 dB or less), or U-plane delay for implementing URLLC (e.g., 0.5 ms or less for each of the downlink (DL) and uplink (UL), or 1 ms or less round trip).

[0059] The antenna module 197 may transmit or receive a signal or power to or from the outside of the electronic device 101 (e.g., an external electronic device). According to an embodiment, the antenna module 197 may include an antenna including a radiating element formed of a conductive material or a conductive pattern formed in or on a substrate (e.g., a printed circuit board (PCB)). According to an embodiment, the antenna module 197 may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication scheme used in a communication network (such as the first network 198 or the second network 199) may be selected from the plurality of antennas by, for example, the communication module 190 (e.g., the wireless communication module 192). A signal or power may then be transmitted or received between the communication module 190 and the external electronic device via the selected at least one antenna. According to an embodiment, another component (e.g., a radio frequency integrated circuit (RFIC)) other than the radiating element may be additionally formed as part of the antenna module 197.

[0060] According to various embodiments, the antenna module 197 may form a millimeter wave antenna module. According to an embodiment, the millimeter wave antenna module may include a printed circuit board, a radio frequency integrated circuit (RFIC), and a plurality of antennas (e.g., array antennas), wherein the RFIC is disposed on a first surface (e.g., bottom surface) of the printed circuit board, or adjacent to the first surface and capable of supporting a specified high frequency band (e.g., millimeter wave band), and the plurality of antennas are disposed on a second surface (e.g., top surface or side surface) of the printed circuit board, or adjacent to the second surface and capable of transmitting or receiving signals of the specified high frequency band.

[0061] At least some of the above components may be connected to each other via an inter-peripheral communication scheme (e.g., a bus, a general purpose input output (GPIO), a serial peripheral interface (SPI), or a mobile industry processor interface (MIPI)) and communicatively transmit signals (e.g., commands or data) therebetween.

[0062] According to an embodiment, a command or data may be sent or received between the electronic device 101 and the external electronic device 104 via the server 108 connected to the second network 199. Each of the electronic device 102 or the electronic device 104 may be a device of the same type as the electronic device 101, or a device of a different type from the electronic device 101. According to an embodiment, all or some operations to be executed in the electronic device 101 may be executed in one or more of the external electronic device 102, the external electronic device 104, or the server 108. For example, if the electronic device 101 should automatically execute a function or service or should execute a function or service in response to a request from a user or another device, the electronic device 101 may request the one or more external electronic devices to execute at least part of the function or service instead of executing the function or service, or the electronic device 101 may request the one or more external electronic devices to execute at least part of the function or service in addition to executing the function or service. The one or more external electronic devices receiving the request may execute at least part of the requested function or service, or execute another function or another 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 at least a partial reply to the request in the case of further processing the result or in the case of not further processing the result. To this end, cloud computing technology, distributed computing technology, mobile edge computing (MEC) technology or client-server computing technology, for example, may be used. The electronic device 101 may use, for example, distributed computing or mobile edge computing to provide ultra-low latency services. In an embodiment, the external electronic device 104 may include an Internet of Things (IoT) device. The server 108 may be an intelligent server using machine learning and / or neural networks. According to an embodiment, the external electronic device 104 or the server 108 may be included in the second network 199. The electronic device 101 may be applied to intelligent services (e.g., smart homes, smart cities, smart cars or health care) based on 5G communication technology or IoT-related technologies.

[0063] Figure 2 FIG. 2 is a diagram showing a camera module 280 (eg, Figure 1 200 of the camera module 180). Figure 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 an embodiment, the lens assembly 210 may include an image sensor 230. The lens assembly 210 may collect light emitted or reflected from an object whose image is to be captured. The lens assembly 210 may include one or more lenses. According to an 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., viewing angle, focal length, autofocus, F number, or optical zoom), or at least one lens assembly may have one or more lens properties different from those of another lens assembly. The lens assembly 210 may include, for example, a wide-angle lens or a telephoto lens.

[0064] The flash 220 may emit light, wherein the emitted light is used to enhance light reflected from an object. According to an embodiment, the flash 220 may include one or more light emitting diodes (LEDs) (e.g., red, green, blue (RGB) LEDs, white LEDs, infrared (IR) LEDs, or ultraviolet (UV) LEDs) or xenon lamps. The image sensor 230 may acquire an image corresponding to an object by converting light emitted or reflected from an object and transmitted through the lens assembly 210 into an electrical signal. According to an embodiment, the image sensor 230 may include one image sensor selected from a plurality of image sensors having different properties (e.g., an RGB sensor, a black and white (BW) 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 charge coupled device (CCD) sensor or a complementary metal oxide semiconductor (CMOS) sensor.

[0065] The image stabilizer 240 may move the image sensor 230 or at least one lens included in the lens assembly 210 in a specific direction, or in response to the camera module 280 or an electronic device including the camera module 280 (eg, Figure 1 The image stabilizer 240 may use a gyroscope sensor (not shown) or an acceleration sensor (not shown) disposed inside or outside the camera module 280 to sense the movement of the camera module 280 or the electronic device (e.g., Figure 1According to an embodiment, the image stabilizer 240 may be implemented as, for example, an optical image stabilizer. The memory 250 may at least temporarily store at least a portion of an image acquired via the image sensor 230 for subsequent image processing tasks. For example, if multiple images are captured quickly or image capture is delayed due to shutter lag, the acquired original image (e.g., a Bayer pattern image, a high-resolution image) may be stored in the memory 250 and may be processed via the image sensor 230. Figure 1 Then, if a specified condition is met (e.g., by a user's input or a system command), at least a portion of the original image stored in the memory 250 may be acquired and processed by, for example, the image signal processor 260. According to an embodiment, the memory 250 may be configured as a memory (e.g., Figure 1 The memory 250 may be at least a portion of the memory 130 in the memory, or the memory 250 may be configured as a separate memory that operates independently of the memory 130.

[0066] The image signal processor 260 may perform one or more image processing on an image acquired via the image sensor 230 or an image stored in the memory 250. The one or more image processing may include, for example, depth map generation, three-dimensional (3D) modeling, panoramic image generation, feature point extraction, image synthesis, or image compensation (e.g., noise reduction, resolution adjustment, brightness adjustment, blurring, sharpening, or softening). Additionally or alternatively, the image signal processor 260 may perform control (e.g., exposure time control or readout timing control) on at least one of the components included in the camera module 280 (e.g., the image sensor 230). The image processed by the image signal processor 260 may be stored back in the memory 250 for further processing, or the image may be provided to an external component outside the camera module 280 (e.g., Figure 1 130, display module 160, electronic device 102, electronic device 104 or server 108 in the memory ... Figure 1 The image signal processor 260 may be configured as at least a part of the processor 120 in the display module 160, or the image signal processor 260 may be configured 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, the at least one image processed by the image signal processor 260 may be displayed as it is by the processor 120 via the display module 160, or the at least one image may be displayed after being further processed.

[0067] According to an embodiment, an electronic device (e.g., Figure 1The electronic device 101 in FIG. 1 may include a plurality of camera modules 280 having different properties or functions. In this case, at least one camera module 280 of the plurality of camera modules 280 may form, for example, a wide-angle camera, and at least another camera module 280 of the plurality of camera modules 280 may form a telephoto camera. Similarly, at least one camera module 280 of the plurality of camera modules 280 may form, for example, a front camera, and at least another camera module 280 of the plurality of camera modules 280 may form a rear camera.

[0068] The electronic device according to an embodiment of the present disclosure may be one of various types of electronic devices. The electronic device may include, for example, a portable communication device (e.g., a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a household appliance. According to an embodiment of the present disclosure, the electronic device is not limited to those electronic devices described above.

[0069] It should be understood that the embodiments of the present disclosure and the terms used therein are not intended to limit the technical features set forth herein to specific embodiments, but include various changes, equivalent forms or alternative forms for corresponding embodiments. For the description of the accompanying drawings, similar reference numerals may be used to refer to similar or related elements. It will be understood that the nouns in the singular form corresponding to the term may include one or more things unless the relevant context clearly indicates otherwise. As used herein, each of the 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" may include any one or all possible combinations of the items listed together with the corresponding one of the multiple phrases. As used herein, terms such as "1st" and "2nd" or "first" and "second" may be used to simply distinguish the corresponding component from another component, and do not limit the component in other aspects (e.g., importance or order). It will be understood that if an element (e.g., a first element) is referred to as being "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "coupled to" "

[0070] As used in connection with various embodiments of the present disclosure, the term "module" may include units implemented in hardware, software, or firmware, and may be used interchangeably with other terms (e.g., logic, logic block, portion, or circuit). A module may be a single integrated component adapted to perform one or more functions or the smallest unit or portion of the single integrated component. For example, depending on the embodiment, a module may be implemented in the form of an application specific integrated circuit (ASIC).

[0071] Various embodiments of the present disclosure may be implemented as software (e.g., a program) including one or more instructions stored in a storage medium (e.g., an internal memory or an external memory) that can be read by a machine (e.g., an electronic device). For example, under the control of a processor, 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 in a storage medium and run the at least one instruction with or without the use of one or more other components. This enables the machine to operate to perform at least one function according to at least one instruction called. The one or more instructions may include code generated by a compiler or code that can be run by an interpreter. A machine-readable storage medium may be provided in the form of a non-transitory storage medium. Among them, the term "non-transitory" only means that the storage medium is a tangible device and does not include a signal (e.g., an electromagnetic wave), but the term does not distinguish between data being semi-permanently stored in a storage medium and data being temporarily stored in a storage medium.

[0072] According to the implementation, the methods according to various implementations of the present disclosure may be included and provided 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 released in the form of a machine-readable storage medium (e.g., a compact disk read-only memory (CD-ROM)), or may be downloaded via an application store (e.g., Play Store TM ) The computer program product may be published (e.g., downloaded or uploaded) online, or the computer program product may be distributed (e.g., downloaded or uploaded) directly between two user devices (e.g., smart phones). If published online, at least part of the computer program product may be temporarily generated, or at least part of the computer program product may be at least temporarily stored in a machine-readable storage medium (such as a memory of a manufacturer's server, an application store's server, or a forwarding server).

[0073] According to an embodiment, each component (e.g., module or program) in the above-mentioned components may include a single entity or multiple entities, and some entities in the multiple entities may be detachably arranged in different components. According to an embodiment, one or more components in the above-mentioned components may be omitted, or one or more other components may be added. Alternatively or additionally, multiple components (e.g., module or program) may be integrated into a single component. In this case, the integrated component may still perform the one or more functions of each component in the multiple components in the same or similar manner as a corresponding component in the multiple components before integration. According to an embodiment, the operations performed by a module, program or another component may be performed sequentially, in parallel, repeatedly or in a heuristic manner, or one or more operations in the operations may be run or omitted in different orders, or one or more other operations may be added.

[0074] Figure 3 FIG. 2 is a diagram showing an electronic device 300 (eg, Figure 1 A front perspective view of an electronic device 101). Figure 4 is a rear perspective view showing an electronic device 300 according to an embodiment of the present disclosure.

[0075] refer to Figure 3 and Figure 4 , according to the electronic device 300 of the embodiment (for example, Figure 1 The electronic device 101 in the embodiment may include a housing 310, the housing 310 including a first surface (or front surface) 310A, a second surface (or rear surface) 310B, and a side surface 310C surrounding a space between the first surface 310A and the second surface 310B. In an embodiment (not shown), the housing 310 may refer to a housing formed Figure 3 The structure of a portion of the first surface 310A, the second surface 310B, and the side surface 310C. According to an embodiment, at least a portion of the first surface 310A may be formed by a front plate 302 (e.g., a glass plate or a polymer plate including various coatings) that is at least partially substantially transparent. In an embodiment, the front plate 302 may be coupled to the housing 310 to form an internal space with the housing 310. In an embodiment, the term 'internal space' may refer to a portion of the housing 310 that accommodates a display 301 or a display 302 to be described later. Figure 1 The inner space of at least a portion of the display module 160 is formed.

[0076] According to an embodiment, the second surface 310B may be formed by a substantially opaque rear plate 311. The rear plate 311 may be formed of, for example, coated or colored glass, ceramic, polymer, metal (e.g., aluminum, stainless steel (STS) or magnesium), or a combination of at least two of these materials. The side surface 310C may be coupled to the front plate 302 and the rear plate 311 and formed by a side frame structure (or "side member") 318 comprising a metal and / or a polymer. In an embodiment, the rear plate 311 and the side frame structure 318 may be integrally formed and comprise the same material (e.g., a metal material such as aluminum).

[0077] In the illustrated embodiment, the front plate 302 may include two first regions 310D at both long side ends of the front plate 302 that are bent from the first surface 310A toward the rear plate 311 and extend seamlessly. Figure 4 ), the rear plate 311 may include two second areas 310E that are bent from the second surface 310B toward the front plate 302 and extend seamlessly at the two long side ends of the rear plate 311. In an embodiment, the front plate 302 (or the rear plate 311) may include only one of the first areas 310D (or the second areas 310E). In an embodiment, some of the first areas 310D or the second areas 310E may not be included. In these embodiments, when viewed from the side of the electronic device 101, the side frame structure 318 may have a first thickness in a first thickness (or width) on a side surface that does not include any of the above first areas 310D or the second areas 310E (e.g., a side surface on which the connector hole 308 is formed), and have a second thickness that is less than the first thickness on a side surface that includes the above first area 310D or the second area 310E (e.g., a side surface on which the key input device 317 is provided).

[0078] According to an embodiment, the electronic device 300 may include a display 301, audio modules 303, 307 and 314, sensor modules 304, 316 and 319, camera modules 305, 312 and 313 (eg, Figure 1 or Figure 2 180 or 280 in the electronic device 101), a key input device 317, a light emitting element 306, or at least one of the connector holes 308 and 309. In an embodiment, the electronic device 101 may not be provided with at least one of the components (e.g., the key input device 317 or the light emitting element 306), or may additionally include other components.

[0079] For example, the display 301 may be visually exposed through a majority of the front panel 302 (e.g., Figure 1160 in the display module 160). In an embodiment, at least a portion of the display 301 may be exposed through the front plate 302 of the first surface 310A and the first area 310D forming the side surface 310C. In an embodiment, the corner of the display 301 may be formed in a shape substantially the same as the shape of the adjacent periphery of the front plate 302. In an embodiment (not shown), the gap between the periphery of the display 301 and the periphery of the front plate 302 may be substantially equal to increase the area of ​​visual exposure of the display 301.

[0080] In an embodiment (not shown), a recess or opening may be formed in a portion of a screen display area (e.g., an active area) or an area outside the screen display area (e.g., an inactive area), and an audio module 314 (e.g., an audio module 316) aligned with the recess or opening may be included. Figure 1 audio module 170 in), sensor module 304 (e.g., Figure 1 At least one of the sensor module 176 in the display 301, the camera module 305, or the light emitting element 306. In an embodiment (not shown), at least one of the audio module 314, the sensor module 304, the camera module 305 (e.g., an under-screen camera (UDC)), the fingerprint sensor 316, or the light emitting element 306 may be included on the rear surface of the screen display area of ​​the display 301. In an embodiment (not shown), the display 301 may be provided in combination with or adjacent to a touch sensing circuit, a pressure sensor capable of measuring the intensity (pressure) of a touch, and / or a digitizer that detects a stylus based on a magnetic field. In an embodiment, at least some of the sensor modules 304 and 319 and / or at least some of the key input devices 317 may be provided in the first area 310D and / or the second area 310E.

[0081] The audio modules 303, 307, and 314 may include a microphone hole 303 and speaker holes 307 and 314. A microphone for acquiring external sound may be provided in the microphone hole 303, and in an embodiment, a plurality of microphones may be provided to detect the direction of the sound. The speaker holes 307 and 314 may include an external speaker hole 307 and a receiver hole 314 for calling. In an embodiment, the speaker holes 307 and 314 and the microphone hole 303 may be implemented as a single hole, or a speaker (e.g., a piezoelectric speaker) may be included without the speaker holes 307 and 314.

[0082] The sensor modules 304, 316, and 319 may generate an electrical signal or data value corresponding to an internal operating state or an external environmental state of the electronic device 300. The sensor modules 304, 316, and 319 may include, for example, a first sensor module 304 (e.g., a proximity sensor) and / or a second sensor module (not shown) (e.g., a fingerprint sensor) disposed on the first surface 310A of the housing 310 and / or a third sensor module 319 (e.g., an HRM sensor) and / or a fourth sensor module 316 (e.g., a fingerprint sensor) disposed on the second surface 310B of the housing 310. The fingerprint sensor may be disposed on the second surface 310B of the housing 310 as well as on the first surface 310A (e.g., the display 301). The electronic device 300 may further include a sensor module not shown, such as at least one of a gesture sensor, a gyroscope sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a color sensor, an IR sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illumination sensor.

[0083] The camera modules 305, 312 and 313 may include a front camera module 305 disposed on a first surface 310A of the electronic device 101 and a rear camera module 312 and / or a flash 313 disposed on a second surface 310B. The camera modules 305 and 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 (LED) or a xenon lamp. In an embodiment, two or more lenses (IR camera, wide-angle lens and telephoto lens) and an image sensor may be arranged on one surface of the electronic device 300.

[0084] The key input device 317 may be provided on the side surface 310C of the housing 310. In an embodiment, the electronic device 300 may not include some or any of the key input devices 317, and the key input devices 317 not included may be implemented in other forms such as soft keys on the display 301. In an embodiment, the key input device may include a sensor module 316 provided on the second surface 310B of the housing 310.

[0085] The light emitting element 306 may be disposed, for example, on the first surface 310A of the housing 310. The light emitting element 306 may provide, for example, status information about the electronic device 300 in the form of light. In an embodiment, the light emitting element 306 may provide, for example, a light source that interacts with the operation of the front camera module 305. The light emitting element 306 may include, for example, an LED, an IR LED, and a xenon lamp.

[0086] The connector holes 308 and 309 may include a first connector hole 308 and / or a second connector hole (e.g., a headphone jack) 309, wherein the first connector hole 308 is capable of accommodating a connector (e.g., a USB connector) for sending power and / or data to an external electronic device and receiving power and / or data from an external electronic device, and the second connector hole 309 is capable of accommodating a connector for sending audio signals to an external electronic device and receiving audio signals from an external electronic device.

[0087] Figure 5 is a diagram illustrating a lens assembly 400 according to an embodiment of the present disclosure. Figure 6 The present invention is shown in the embodiment of the present invention. Figure 5 A graph of spherical aberration of lens assembly 400 is shown. Figure 7 The present invention is shown in the embodiment of the present invention. Figure 5 A graph of astigmatism of lens assembly 400 is shown. Figure 8 The present invention is shown in the embodiment of the present invention. Figure 5 A graph showing the distortion rate of the lens assembly 400.

[0088] Figure 6 4 is a graph showing the spherical aberration of the lens assembly 400 according to an embodiment of the present disclosure, wherein the horizontal axis represents the coefficient of the longitudinal spherical aberration, the vertical axis represents the normalized distance from the optical axis, and shows the change of the longitudinal spherical aberration according to the wavelength of light. For example, the longitudinal spherical aberration is shown for each of light having a wavelength of 656.3000 nanometers (nm) (e.g., red), light having a wavelength of 587.6000 nm (e.g., yellow), light having a wavelength of 546.1000 nm, light having a wavelength of 486.1000 nm (e.g., blue), and light having a wavelength of 435.8000 nm. Figure 7 is a graph showing astigmatism of the lens assembly 400 according to an embodiment of the present disclosure for light having a wavelength of 546.1000 nm, wherein 'S' refers to a sagittal plane, and 'T' refers to a meridional plane. Figure 8 is a graph showing the distortion rate of the lens assembly 400 according to an embodiment of the present disclosure with respect to light having a wavelength of 546.1000 nm.

[0089] refer to Figures 5 to 8 , according to one embodiment of the lens assembly 400 (eg, Figure 2The lens assembly 210 may include an image sensor 1 or 230 and seven lenses L1, L2, L3, L4, L5, L6, and L7. In an embodiment, the seven lenses L1, L2, L3, L4, L5, L6, and L7 may include a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, and / or a seventh lens L7 aligned in sequence toward the image sensor 1 or 230 along the direction of the optical axis O. In the following detailed description, the first lens L1 may be referred to as a "first object side lens", and the seventh lens L7 may be referred to as a "first sensor side lens". In an embodiment, "aligning along the direction of the optical axis O" may refer to an alignment such that the optical axes of the respective lenses L1, L2, L3, L4, L5, L6, and L7 or the optical axis of the image sensor 1 or 230 (e.g., an imaging surface img) coincide. The imaging surface img may receive or detect light aligned or focused by, for example, the lenses L1, L2, L3, L4, L5, L6, and L7.

[0090] According to an embodiment, a lens such as an aperture (e.g., Figure 5 An optical component such as an IR cut filter F (implemented on a lens surface marked with 'sto' in the lens assembly 400) or an IR cut filter F may be disposed between the first lens L1 and the image sensor 1 or 230. For example, an aperture (e.g., a "stop") may be disposed between the first lens L1 and the seventh lens L7, for example, between any two adjacent lenses selected from among the seven lenses L1, L2, L3, L4, L5, L6, and L7. When it is mentioned that "the aperture is disposed between any two selected adjacent lenses", this may be understood as including a configuration in which the aperture is disposed on one of the two lens surfaces facing each other of the two adjacent lenses. In an embodiment, the IR cut filter F may suppress or block light of a wavelength that is invisible to the naked eye of a user but is detected by a photosensitive material of a film or the image sensor 1 or 230 (e.g., IR light) from being incident on the image sensor 1 or 230. The IR cut filter F may be disposed between the seventh lens L7 and the image sensor 1 or 230. Depending on the purpose of the lens assembly 400, the IR cut filter F may be replaced with a bandpass filter that transmits IR light and suppresses or blocks visible light.

[0091] According to an embodiment, the IR cut filter F and / or the image sensor 1 or 230 may be described as a component separate from the lens assembly 400. For example, the IR cut filter F and / or the image sensor 1 or 230 may be installed in an electronic device (e.g., Figure 1 or Figure 4 electronic device 101, 102, 104 or 300) or an optical device (e.g., Figure 1 or Figure 2The camera module 180 or 280 of the embodiment of the present invention is a camera module 180 or 280 of the embodiment of the present invention, and a plurality of lenses L1, L2, L3, L4, L5, L6 and L7 forming the lens assembly 400 may be mounted on an electronic device or an optical device in alignment with the IR cut filter F and / or the image sensor 1 or 230 on the optical axis O. In an embodiment, at least one of the lenses L1, L2, L3, L4, L5, L6 and L7 may reciprocate along the direction of the optical axis O, and the electronic device (e.g., Figure 1 or Figure 4 The electronic device 101, 102, 104 or 300 or Figure 1 The processor 120 of the embodiment can perform focus adjustment or focal length adjustment by reciprocating at least one of the lenses L1, L2, L3, L4, L5, L6 and L7. In an embodiment, the lens assembly 400 can be configured to Figure 3 or Figure 4 One of the camera modules 305, 312 and 313.

[0092] According to an embodiment, each of the lenses L1, L2, L3, L4, L5, L6, and L7 may include an object-side surface and a sensor-side surface. Figure 5 Reference symbol 'S1' in FIG. 1 may refer to an object-side surface of first lens L1, and 'S11' may refer to a sensor-side surface of fifth lens L5. Although FIG. 1 shows the layout of lenses L1, L2, L3, L4, L5, L6, and L7, Figure 5 Although not shown in the figure, the lens surface 'S7' described in the following Table 1 may be a reference position, such as a structure referred to for the arrangement of lenses L1, L2, L3, L4, L5, L6, and L7. In describing the following various embodiments, in order to simplify the drawings, the reference numerals in the drawings may be omitted for some of the object-side surfaces and sensor-side surfaces of lenses L1, L2, L3, L4, L5, L6, and L7. The reference numerals omitted for the lens surfaces in the drawings can be easily understood through the table of lens data about each embodiment described below.

[0093] In the following detailed description, the shape of the object-side surface or sensor-side surface of lenses L1, L2, L3, L4, L5, L6 and L7 may be described using the terms 'concave' or 'convex'. Such reference to the shape of the lens surface may describe the shape of the point that intersects the optical axis O or the shape of the paraxial region that intersects the optical axis O. When it is mentioned that the 'object-side surface is concave', this may describe a shape in which the center of the radius of curvature of the object-side surface is positioned closer to the object OB. When it is mentioned that the 'object-side surface is convex', this may describe a shape in which the center of the radius of curvature of the object-side surface is positioned closer to the image sensor I or 230. When it is mentioned that the 'sensor-side surface is concave', this may describe a shape in which the center of the radius of curvature of the sensor-side surface is positioned closer to the image sensor I or 230. When it is mentioned that the 'sensor-side surface is convex', this may describe a shape in which the center of the radius of curvature of the sensor-side surface is positioned closer to the object OB. For example, in Figure 5 , the object-side surface S1 of the first lens L1 can be understood as convex, and the sensor-side surface S4 of the second lens L2 can be understood as concave.

[0094] According to an embodiment, the first lens L1 may have a positive refractive power and include a convex object-side surface S1 and / or a concave sensor-side surface S2. Since the object-side surface S1 of the first lens L1 has a convex shape, the lens assembly 400 can be made with a large diameter while enabling easy spherical aberration control. In an embodiment, the first lens L1 may have a meniscus shape convex toward the object OB together with the second lens L2 and / or the third lens L3. The shapes of the first lens L1, the second lens L2, and / or the third lens L3 may facilitate reducing the size of the lens assembly 400 (e.g., a "total lens length" defined as the distance from the object-side surface S1 of the first lens L1 to the image sensor I or 230).

[0095] According to an embodiment, the second lens L2 may have negative refractive power and may be made of a material having a high dispersion value (for example, a material having a small Abbe number) so that chromatic aberration that may occur in the first lens L1 can be easily corrected. In order to facilitate the correction of chromatic aberration, the second lens L2 may be made of a material having a refractive index of about 1.6 or greater and about 1.7 or less. In an embodiment, the second lens L2 may be combined with the third lens L3 to achieve negative refractive power, thereby facilitating the correction of coma or field curvature. In an embodiment, when the aperture is disposed between the second lens L2 and the third lens L3, the lens assembly 400 can be miniaturized, making it easy to ensure a large amount of peripheral light. Figure 5In the embodiment, the aperture may be implemented on the object-side surface S5 of the third lens L3, and when the aperture is provided on the lens surface, 'sto' may be added to the reference numeral referring to the lens surface. In an embodiment, when the aperture is provided between the second lens L2 and the third lens L3, it may be effective in cutting off incident light and facilitates controlling spherical aberration or coma.

[0096] According to an embodiment, the third lens L3 may have positive refractive power and be a meniscus lens convex toward the object OB together with the first lens L1 and / or the second lens L3. As described above, when at least one or all of the first lens L1, the second lens L2, and / or the third lens L3 are meniscus lenses convex toward the object OB, it is convenient to miniaturize the lens assembly 400.

[0097] According to an embodiment, the fourth lens L4 may have negative refractive power and be a meniscus lens convex toward the image sensor I. For example, the object-side surface S8 of the fourth lens L4 may be concave, and the sensor-side surface S9 of the fourth lens L4 may be convex. The fourth lens L2 may be made of a material having a refractive index of, for example, about 1.6 or more and about 1.7 or less, thereby facilitating chromatic aberration correction. In an embodiment, the fourth lens L4 may include an inflection point on at least one of the object-side surface S8 or the sensor-side surface S9. It should be noted that in Figure 5 The middle inflection point is marked with a symbol “◆” and is not marked with a reference numeral. Since fourth lens L4 has a meniscus shape and / or includes an inflection point, aberration correction can be facilitated in a peripheral region around a paraxial region.

[0098] According to an embodiment, the fifth lens L5 may be an aspherical lens having positive refractive power. Since the fifth lens L5 is implemented as an aspherical lens, coma control in the peripheral area may be facilitated. For example, the fifth lens L5 may include an inflection point on at least one of the object side surface S10 or the sensor side surface S11, and the object side surface S10 may be convex and the sensor side surface S11 may be concave. The shape of the fifth lens L5 may facilitate control of various aberrations and increase the light amount ratio in the peripheral area. In an embodiment, in order to facilitate correction of chromatic aberration, the fifth lens L5 may be made of a material having a refractive index of about 1.6 or greater and about 1.7 or less.

[0099] According to an embodiment, the sixth lens L6 may have positive refractive power and include a convex object-side surface S12. The sixth lens L6 may include an inflection point on at least one of, for example, the object-side surface S12 or the sensor-side surface S13. In an embodiment, the sixth lens L6 may ensure the amount of light in the peripheral region by reducing the incident angle of light incident on the imaging surface img. For example, the refractive power or shape of the sixth lens L6 may create an environment in which a good amount of light can be ensured from the paraxial region to the peripheral region in a large-diameter optical system.

[0100] According to an embodiment, the seventh lens L7 may have a negative refractive power, and the object side surface S14 and / or the sensor side surface S15 of the seventh lens L7 may be implemented as an aspherical surface. In an embodiment, at least one of the object side surface S14 or the sensor side surface S15 of the seventh lens L7 may include an inflection point. For example, when the sensor side surface S15 of the seventh lens L7 includes one or more inflection points, field curvature from the paraxial region to the peripheral region may be suppressed. In an embodiment, each of the object side surface S14 and the sensor side surface S15 of the seventh lens L7 may be concave in the paraxial region and convex in the peripheral region. In an embodiment, the peripheral region of the seventh lens L7 may have a shape that is closer to the sixth lens L6 as it is away from the optical axis O. For example, the peripheral region may have a shape in which the object side surface S14 and the sensor side surface S15 are convex, and the edges are inclined in a direction closer to the sixth lens L6. Such a shape of the seventh lens L7 may facilitate reduction of the effective diameter of the seventh lens L7. For example, the seventh lens L7 may have a shape that causes miniaturization of the lens assembly 400.

[0101] According to an embodiment, when the first lens L1, the second lens L2, and / or the third lens L3 have a meniscus shape convex toward the object OB, the lens assembly 400 can be miniaturized. In an embodiment, when each of the fourth lens L4, the fifth lens L5, the sixth lens L6, and / or the seventh lens L7 includes at least one inflection point on the object side surface or the sensor side surface, various aberrations can be easily corrected in the peripheral area around the paraxial area. In an embodiment, in order to facilitate chromatic aberration correction, at least one of the second lens L2, the fourth lens L4, and / or the fifth lens L5 can be made of a material having a refractive index of about 1.6 or more.

[0102] In describing the conditions presented by the following equations, the distance between two selected lens surfaces, the distance between a selected lens surface and an aperture, and / or the distance between a selected lens surface and an image sensor I (e.g., an imaging plane img), and the total lens length may be mentioned. Unless otherwise specified, these distances or lengths may be understood as distances measured on the optical axis O. Depending on the embodiment, different reference numerals may be used for lens surfaces, and although the distances are referred to in the drawings, Fig. 9 or Fig.13 Reference numerals are omitted for the lens surfaces of the lens assembly 500 or 600, but those skilled in the art will easily understand the reference numerals of the lens surfaces by referring to Table 6 and / or Table 11 regarding lens data.

[0103] According to an embodiment, the lens assembly 400 may satisfy the condition represented by Equation 1 below.

[0104] Equation 1: 1≤f / f1≤2

[0105] In Equation 1, 'f' may be an effective focal length of the lens assembly 400, and 'f1' may be a focal length of the first lens L1. In an embodiment, when the value calculated by Equation 1 is greater than 2, the refractive power of the first lens L1 may increase, making it difficult to correct aberrations (e.g., spherical aberration), and when the value calculated by Equation 1 is less than 1, miniaturization of the lens assembly 400 may be difficult. For example, when the conditions of Equation 1 are satisfied, miniaturization and aberration correction of the lens assembly 400 may be facilitated, thereby stabilizing the optical performance of the lens assembly 400.

[0106] According to an embodiment, the lens assembly 400 may satisfy the condition represented by the following Equation 2.

[0107] Equation 2: 1.3 ≤ Fno ≤ 1.7

[0108] In Equation 2, 'Fno' may be the F number of the lens assembly 400. When the F number of the lens assembly 400 is greater than 1.7, the deflection limit may be reduced, and when the F number is less than 1.3, it may be brighter, but an additional lens may be required to ensure optical performance. For example, when the F number of the lens assembly 400 is less than 1.3, it may be difficult to miniaturize the lens assembly 400. For example, Equation 2 may present conditions for ensuring good optical performance while miniaturizing the lens assembly 400.

[0109] According to an embodiment, the lens assembly 400 may satisfy the condition presented by Equation 3 below.

[0110] Equation 3: 0.59 ≤ TTL / (ImgH*2) ≤ 0.68

[0111] In Equation 3, 'TTL' may be the distance from the object-side surface S1 of the first lens L1 to the image sensor I (e.g., imaging surface img), and 'ImgH' may be the maximum distance from the optical axis O to the edge of the image sensor I (e.g., imaging surface img). For example, 'ImgH×2' may be understood as the total diagonal length of the imaging surface img. In an embodiment, Equation 3 related to the ratio of the size ImgH of the image sensor I and the total lens length TTL may be referred to as a slim factor. In an embodiment, when the slim factor is greater than 0.68, it may be difficult to miniaturize the lens assembly 400, and when the slim factor is less than 0.59, it may be difficult to ensure the viewing angle and to ensure the processing or arrangement space of the lenses L1, L2, L3, L4, L5, L6, and L7. In an embodiment, when the total lens length is reduced due to a smaller slim factor, it may be difficult to ensure the modulation transfer function (MTF) performance or to control aberrations. For example, when the lens assembly is mounted on a miniaturized electronic device (e.g., Figures 1 to 4 When the electronic devices 101, 102, 104 and 300 are used, Equation 3 can present the conditions for ensuring mass production.

[0112] According to an embodiment, the lens assembly 400 may satisfy the condition represented by Equation 4 below.

[0113] Equation 4: 0.1 ≤ T1 / TA ≤ 0.3

[0114] In Equation 4, 'T1' may be a distance from the object-side surface S1 of the first lens L1 to the aperture (e.g., the object-side surface S5 of the third lens L3), and 'TA' may be a distance from the object-side surface S1 of the first lens L1 to the sensor-side surface S15 of the seventh lens L7. For example, Equation 4 describing conditions related to the position of the aperture among lenses L1, L2, L3, L4, L5, L6, and L7 may present conditions for ensuring good peripheral light quantity while miniaturizing the lens assembly 400. In an embodiment, the aperture may be disposed between the second lens L2 and the third lens L3, and Figure 5 In the lens assembly 400 , a configuration in which the aperture is provided on the object-side surface S5 of the third lens L3 can be exemplified.

[0115] In an embodiment, when the value calculated by equation 4 is less than 0.1, miniaturization is easy, but it may be difficult to optimize the control of various aberrations or MTF performance. In an embodiment, when the value calculated by equation 4 is less than 0.1, the acquisition of upper light in the peripheral area may be limited, making it difficult to ensure the peripheral light amount. In an embodiment, when the value calculated by equation 4 is greater than 0.3, the aperture may be set close to the image sensor 1, thereby increasing the total lens length and limiting the acquisition of lower light in the peripheral area.

[0116] According to an embodiment, the lens assembly 400 may satisfy the condition represented by the following Equation 5.

[0117] Equation 5: -50≤f23<0

[0118] In Equation 5, 'f23' may be a focal length achieved by combining the second lens L2 with the third lens L3. It has been described above that a negative refractive power is achieved by combining the second lens L2 with the third lens L3. The lens assembly 400 may achieve a balance of overall refractive power by satisfying the conditions of Equation 5, and have good optical performance while being miniaturized. For example, when the value calculated by Equation 5 is greater than 0, the positive refractive power of the lens assembly 400 may increase, making it difficult to correct aberrations (e.g., coma). In an embodiment, when the value calculated by Equation 5 is less than -50, the overall refractive power of the lens assembly 400 may decrease, making it difficult to miniaturize the lens assembly 400.

[0119] According to an embodiment, the lens assembly 400 may satisfy the condition presented by the following Equation 6.

[0120] Equation 6: 17 ≤ vd-min ≤ 25

[0121] In Equation 6, 'vd-min' may represent a minimum value among the Abbe numbers of lenses L1, L2, L3, L4, L5, L6, and L7. In an embodiment, the lens assembly 400 may facilitate chromatic aberration correction and have stable optical performance by satisfying the condition of Equation 6.

[0122] According to an embodiment, lens assembly 400 may have a focal length of about 5.25 mm, an F number of about 1.58, and / or a viewing angle of about 83 degrees. In an embodiment, lens assembly 400 may satisfy at least some of the shapes and refractive powers of the above-mentioned lenses L1, L2, L3, L4, L5, L6, and L7 (e.g., lens surfaces) and / or the conditions presented by the equations, and may be manufactured to the exemplary specifications described in Table 1 below.

[0123] Table 1

[0124]

[0125]

[0126] The following Tables 2, 3, 4 and 5 list the aspheric coefficients of lenses L1, L2, L3, L4, L5, L6 and L7, and the definition of the aspheric surface can be obtained from the following Equation 7.

[0127] Equation 7:

[0128]

[0129] In Equation 7, "x" is the distance in the direction of the optical axis O from the point on the lens surface through which the optical axis O passes, "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 point on the lens surface through which the optical axis O passes, "K" is the conic constant, and "A i ” is the aspheric coefficient.

[0130] Table 2

[0131]

[0132]

[0133] Table 3

[0134]

[0135] Table 4

[0136]

[0137]

[0138] Table 5

[0139]

[0140]

[0141] Fig. 9 is a diagram illustrating a lens assembly 500 according to an embodiment of the present disclosure. Fig.10 The present invention is shown in the embodiment of the present invention. Fig. 9 A graph of spherical aberration of lens assembly 500. Fig.11 The present invention is shown in the embodiment of the present invention. Fig. 9 A graph of astigmatism of lens assembly 500. Fig.12 The present invention is shown in the embodiment of the present invention. Fig. 9 A graph showing the distortion rate of the lens assembly 500.

[0142] Fig. 9 The lens assembly 500 may have a focal length of about 5.20 mm, an F number of about 1.58, and / or a viewing angle of about 83 degrees. In embodiments, the lens assembly 500 may satisfy at least some of the above-described shapes and refractive powers of lenses L1, L2, L3, L4, L5, L6, and L7 (e.g., lens surfaces) and / or the conditions presented by the equations, may be manufactured to the exemplary specifications described in Table 6 below, and have the aspheric coefficients listed in Tables 7, 8, 9, and 10.

[0143] Table 6

[0144]

[0145]

[0146] Table 7

[0147]

[0148] Table 8

[0149]

[0150]

[0151] Table 9

[0152]

[0153] Table 10

[0154]

[0155]

[0156] Fig.13 is a diagram illustrating a lens assembly 600 according to an embodiment of the present disclosure. Fig.14 The present invention is shown in the embodiment of the present invention. Fig.13 A graph of spherical aberration of lens assembly 600 is shown. Fig.15 The present invention is shown in the embodiment of the present invention. Fig.13 A graph of astigmatism of lens assembly 600. Fig.16 The present invention is shown in the embodiment of the present invention. Fig.13 A graph showing the distortion rate of the lens assembly 600.

[0157] Fig.13 The lens assembly 600 may have a focal length of about 5.20 mm, an F number of about 1.58, and / or a viewing angle of about 83 degrees. In an embodiment, the lens assembly 600 may satisfy at least some of the above-mentioned shapes and refractive powers of lenses L1, L2, L3, L4, L5, L6, and L7 (e.g., lens surfaces) and / or the conditions presented by the equations, may be manufactured to the exemplary specifications described in Table 11 below, and have the aspheric coefficients listed in Tables 12, 13, 14, and 15.

[0158] Table 11

[0159]

[0160]

[0161] Table 12

[0162]

[0163] Table 13

[0164]

[0165] Table 14

[0166]

[0167]

[0168] Table 15

[0169]

[0170] According to an embodiment, regarding the conditions presented by equations 1 to 6, from Figure 5 , Fig. 9 and Fig.13 The calculated values ​​of the lens data of the lens assemblies 400, 500 and 600 are shown in the following Table 16.

[0171] Table 16

[0172]

[0173]

[0174] As described above, according to the lens assembly of the embodiment of the present disclosure (for example, Figure 5 , Fig. 9 and / or Fig.13 The lens assembly 400, 500 or 600) can have an F number of about 1.5 and a thin factor of about 0.68 or less, which is convenient for miniaturization and easy to manufacture in terms of the material or shape of the lens. In an embodiment, the lens assembly 400, 500 or 600 can be miniaturized while facilitating aberration control and easily ensuring peripheral light volume, thereby providing optical performance suitable for a high-pixel sensor with an image height of about 4.8 mm or more. In an embodiment, since an appropriate gap is ensured when arranging the lenses, even if a separate structure (e.g., a spacer) is not provided between the lenses, the lenses can be assembled in a state where the edge or side surface of the lens is in contact with the barrel structure or supported by the barrel structure. For example, this can suppress the flare phenomenon caused by a separate structure (e.g., a spacer) and contribute to the reduction of manufacturing costs (e.g., material costs).

[0175] Effects that can be obtained from the present disclosure are not limited to the above-mentioned effects, and other effects that are not mentioned can be clearly understood by those skilled in the art from the following description.

[0176] As described above, according to an embodiment of the present disclosure, a lens assembly (eg, Figure 5 , Fig. 9 and / or Fig.13 The lens assembly 400, 500 or 600) may include an image sensor (e.g., Figure 2 , Figure 5 , Fig. 9 and / or Fig.13 image sensor 230 or I) and seven lenses (e.g., Figure 5 , Fig. 9 and / or Fig.13 The seven lenses are arranged along the optical axis (eg, Figure 5 , Fig. 9 and / or Fig.13 The optical axis O) is arranged in sequence, and includes a first lens having a positive refractive power (for example, Figure 5 , Fig. 9 and / or Fig.13 A first lens L1 having a negative refractive power, a second lens having a negative refractive power (for example, Figure 5 , Fig. 9 and / or Fig.13 A second lens L2 having a positive refractive power, a third lens (for example, Figure 5 , Fig. 9 and / or Fig.13 A third lens L3 having a negative refractive power, a fourth lens (eg, Figure 5 , Fig. 9 and / or Fig.13 A fourth lens L4 having a positive refractive power, a fifth lens (eg, Figure 5 , Fig. 9 and / or Fig.13 A fifth lens L5 having a positive refractive power, a sixth lens (eg, Figure 5 , Fig. 9 and / or Fig.13 The sixth lens L6) and the seventh lens having negative refractive power (for example, Figure 5 , Fig. 9 and / or Fig.13 In an embodiment, the lens assembly may satisfy the following Conditional Expression 1 to Conditional Expression 3.

[0177] Conditional expression 1: 1≤efl / f1≤2

[0178] Conditional expression 2: 1.3 ≤ Fno ≤ 1.7

[0179] Conditional expression 3: 0.59≤TTL / (ImgH×2)≤0.68

[0180] Here, 'efl' may be the effective focal length of the lens assembly, 'f1' may be the focal length of the first lens, 'Fno' may be the F number of the lens assembly, and 'TTL' may be the distance from the object side surface of the first lens (e.g., Figure 5 'ImgH' may be the distance from the optical axis to the imaging surface of the image sensor (eg, Figure 5 , Fig. 9 and / or Fig.13 The maximum distance from the edge of the imaging surface img).

[0181] According to an embodiment, the lens assembly may further include a lens disposed between the first lens and the seventh lens (for example, Figure 5 In an embodiment, the lens assembly may satisfy the following Conditional Expression 4.

[0182] Conditional expression 4: 0.1≤T1 / TA≤0.3

[0183] Here, 'T1' may be the distance from the object-side surface of the first lens to the aperture, and 'TA' may be the distance from the object-side surface of the first lens to the sensor-side surface of the seventh lens (eg, Figure 5 The distance to the surface indicated by 'S15' in FIG.

[0184] According to an embodiment, the lens assembly may satisfy the following Conditional Expression 5.

[0185] Conditional expression 5: -50≤f23<0

[0186] Here, 'f23' may be a combined focal length of the second lens and the third lens.

[0187] According to an embodiment, the fifth lens may include a convex object-side surface (e.g., Figure 5 ) and the concave sensor side surface (e.g., in Figure 5 , and at least one of the object-side surface or the sensor-side surface of the fifth lens may include an inflection point.

[0188] According to an embodiment, the first lens, the second lens, and the third lens are meniscus lenses having a convex object-side surface and a concave sensor-side surface. In an embodiment, the lens assembly may satisfy the following Conditional Expression 6.

[0189] Conditional expression 6: 17≤vd-min≤25

[0190] Here, 'vd-min' may be the minimum Abbe number among the Abbe numbers of the lenses.

[0191] According to an embodiment, the second lens, the fourth lens, and the fifth lens may have a refractive index of 1.6 or more and 1.7 or less.

[0192] According to an embodiment, the fourth lens may have a concave object-side surface (e.g., Figure 5 ) and the protruding sensor side surface (e.g., Figure 5 A meniscus lens having a surface designated by 'S9' in FIG.

[0193] According to an embodiment, each of at least one of the object-side surface or the sensor-side surface of the fourth lens, at least one of the object-side surface or the sensor-side surface of the fifth lens, at least one of the object-side surface or the sensor-side surface of the sixth lens, and at least one of the object-side surface or the sensor-side surface of the seventh lens may include an inflection point.

[0194] According to an embodiment, the sixth lens may include a convex object-side surface.

[0195] According to an embodiment, the object-side surface of the seventh lens may be concave in a paraxial region through which the optical axis passes, and convex in a peripheral region around the paraxial region. In an embodiment, the sensor-side surface of the seventh lens may be concave in the paraxial region, and convex in the peripheral region. In an embodiment, the peripheral region may be inclined toward the sixth lens.

[0196] According to an embodiment of the present disclosure, an electronic device (eg, Figures 1 to 4 The electronic devices 101, 102, 104 and 300 may include a lens assembly (eg, Figure 5 , Fig. 9 and / or Fig.13 lens assembly 400, 500 or 600) and a processor configured to acquire an image of an object using the lens assembly (e.g., Figure 1 The processor 120 or Figure 2 In an embodiment, the lens assembly may include an image sensor (e.g., Figure 2 , Figure 5 , Fig. 9 and / or Fig.13 image sensor 230 or I) and seven lenses (e.g., Figure 5 , Fig. 9 and / or Fig.13 The seven lenses are arranged along the optical axis (eg, Figure 5 , Fig. 9 and / or Fig.13 The optical axis O) is arranged in sequence, and includes a first lens having a positive refractive power (for example, Figure 5, Fig. 9 and / or Fig.13 A first lens L1 having a negative refractive power, a second lens having a negative refractive power (for example, Figure 5 , Fig. 9 and / or Fig.13 A second lens L2 having a positive refractive power, a third lens (for example, Figure 5 , Fig. 9 and / or Fig.13 A third lens L3 having a negative refractive power, a fourth lens (eg, Figure 5 , Fig. 9 and / or Fig.13 A fourth lens L4 having a positive refractive power, a fifth lens (eg, Figure 5 , Fig. 9 and / or Fig.13 A fifth lens L5 having a positive refractive power, a sixth lens (eg, Figure 5 , Fig. 9 and / or Fig.13 The sixth lens L6) and the seventh lens having negative refractive power (for example, Figure 5 , Fig. 9 and / or Fig.13 In an embodiment, the lens assembly may satisfy the following Conditional Expression 7 to Conditional Expression 9.

[0197] Conditional expression 7: 1≤efl / f1≤2

[0198] Conditional expression 8: 1.3 ≤ Fno ≤ 1.7

[0199] Conditional expression 9: 0.59 ≤ TTL / (ImgH×2) ≤ 0.68

[0200] Here, 'efl' may be the effective focal length of the lens assembly, 'f1' may be the focal length of the first lens, 'Fno' may be the F number of the lens assembly, and 'TTL' may be the distance from the object side surface of the first lens (e.g., Figure 5 'ImgH' may be the distance from the optical axis to the imaging surface of the image sensor (eg, Figure 5 , Fig. 9 and / or Fig.13 The maximum distance from the edge of the imaging surface img).

[0201] According to an embodiment, the lens assembly may further include a lens disposed between the first lens and the seventh lens (for example, Figure 5 In an embodiment, the lens assembly may satisfy the following Conditional Expression 10.

[0202] Conditional expression 10: 0.1≤T1 / TA≤0.3

[0203] Here, 'T1' may be the distance from the object-side surface of the first lens to the aperture, and 'TA' may be the distance from the object-side surface of the first lens to the sensor-side surface of the seventh lens (eg, Figure 5 The distance to the surface indicated by 'S15' in FIG.

[0204] According to an embodiment, the lens assembly may satisfy the following Conditional Expression 11.

[0205] Conditional expression 11: -50≤f23<0

[0206] Here, 'f23' may be a combined focal length of the second lens and the third lens.

[0207] According to an embodiment, the fifth lens may include a convex object-side surface (e.g., Figure 5 ) and the concave sensor side surface (e.g., in Figure 5 , and at least one of the object-side surface or the sensor-side surface of the fifth lens may include an inflection point.

[0208] According to an embodiment, the first lens, the second lens, and the third lens are meniscus lenses having a convex object-side surface and a concave sensor-side surface. In an embodiment, the lens assembly may satisfy the following Conditional Expression 12.

[0209] Conditional expression 12: 17≤vd-min≤25

[0210] Here, 'vd-min' may be the minimum Abbe number among the Abbe numbers of the lenses.

[0211] According to an embodiment, the second lens, the fourth lens, and the fifth lens may have a refractive index of 1.6 or more and 1.7 or less.

[0212] According to an embodiment, the fourth lens may have a concave object-side surface (e.g., Figure 5 ) and the protruding sensor side surface (e.g., Figure 5 A meniscus lens having a surface designated by 'S9' in FIG.

[0213] According to an embodiment, each of at least one of the object-side surface or the sensor-side surface of the fourth lens, at least one of the object-side surface or the sensor-side surface of the fifth lens, at least one of the object-side surface or the sensor-side surface of the sixth lens, and at least one of the object-side surface or the sensor-side surface of the seventh lens may include an inflection point.

[0214] According to an embodiment, the sixth lens may include a convex object-side surface.

[0215] According to an embodiment, the object-side surface of the seventh lens may be concave in a paraxial region through which the optical axis passes, and convex in a peripheral region around the paraxial region. In an embodiment, the sensor-side surface of the seventh lens may be concave in the paraxial region, and convex in the peripheral region. In an embodiment, the peripheral region may be inclined toward the sixth lens.

[0216] Although the present disclosure has been described with respect to an embodiment by way of example, it should be understood that the embodiment is intended to be illustrative rather than limiting. It will be apparent to those skilled in the art that various changes in form and detailed construction may be made therein without departing from the scope of the present disclosure including the appended claims and their equivalents.

Claims

1. Lens assembly (400; 500; 600), including: Image sensor (I); as well as Seven lenses (L1, L2, L3, L4, L5, L6, L7) are arranged in sequence along the optical axis (O) in a direction toward the image sensor, and include a first lens (L1) with positive refractive power, a second lens (L2) with negative refractive power, a third lens (L3) with positive refractive power, a fourth lens (L4) with negative refractive power, a fifth lens (L5) with positive refractive power, a sixth lens (L6) with positive refractive power, and a seventh lens (L7) with negative refractive power, Wherein, the lens assembly satisfies the following Conditional Expression 1 to Conditional Expression 3, Conditional expression 1: 1≤efl / f1≤2 Conditional expression 2: 1.3 ≤ Fno ≤ 1.7 Conditional expression 3: 0.59≤TTL / (ImgH×2)≤0.68 Wherein, 'efl' is the effective focal length of the lens assembly, 'f1' is the focal length of the first lens, 'Fno' is the F number of the lens assembly, 'TTL' is the distance from the object-side surface of the first lens to the image sensor, and 'ImgH' is the maximum distance from the optical axis to the edge of the imaging surface (img) of the image sensor.

2. The lens assembly according to claim 1, further comprising an aperture disposed between the first lens and the seventh lens, in, The lens assembly satisfies the following conditional expression 4, Conditional expression 4: 0.1≤T1 / TA≤0.3 wherein 'T1' is a distance from the object-side surface of the first lens to the aperture, and 'TA' is a distance from the object-side surface of the first lens to a sensor-side surface of the seventh lens.

3. The lens assembly according to claim 1 or 2, wherein: The lens assembly satisfies the following conditional expression 5, Conditional expression 5: -50≤f23<0 Wherein, 'f23' is the combined focal length of the second lens and the third lens.

4. The lens assembly according to any one of claims 1 to 3, wherein: The fifth lens includes a convex object-side surface and a concave sensor-side surface, and at least one of the object-side surface or the sensor-side surface of the fifth lens includes an inflection point.

5. The lens assembly according to any one of claims 1 to 4, wherein: The first lens, the second lens, and the third lens are meniscus lenses having a convex object-side surface and a concave sensor-side surface, and Wherein, the lens assembly satisfies conditional expression 6, Conditional expression 6: 17≤vd-min≤25 Here, 'vd-min' is the minimum Abbe number among the Abbe numbers of the seven lenses.

6. The lens assembly according to any one of claims 1 to 5, wherein: The second lens, the fourth lens, and the fifth lens have a refractive index of 1.6 or more and 1.7 or less.

7. The lens assembly according to any one of claims 1 to 6, wherein: The fourth lens is a meniscus lens having a concave object-side surface and a convex sensor-side surface.

8. The lens assembly according to any one of claims 1 to 7, wherein: Each of at least one of the object-side surface or the sensor-side surface of the fourth lens, at least one of the object-side surface or the sensor-side surface of the fifth lens, at least one of the object-side surface or the sensor-side surface of the sixth lens, and at least one of the object-side surface or the sensor-side surface of the seventh lens includes an inflection point.

9. The lens assembly according to any one of claims 1 to 8, wherein: The sixth lens includes a convex object-side surface.

10. The lens assembly according to any one of claims 1 to 9, wherein: an object-side surface of the seventh lens is concave in a paraxial region through which the optical axis passes, and is convex in a peripheral region around the paraxial region, wherein the sensor-side surface of the seventh lens is concave in the paraxial region and convex in the peripheral region, and Wherein, the peripheral area is inclined toward the sixth lens.

11. Electronic device (101; 102; 104; 300), including: The lens assembly according to any one of claims 1 to 10; as well as A processor (120; 260) is configured to acquire an image of an object using the lens assembly.

Images