KR20240034604A - Lens assembly and electronic device including the same - Google Patents

Abstract

According to an embodiment of the present disclosure, a lens assembly includes an image sensor and seven lenses sequentially arranged along an optical axis in a direction toward the image sensor, including a first lens with positive refractive power and a negative power. A second lens with negative power, a third lens with positive power, a fourth lens with negative power, a fifth lens with positive power, a sixth lens with positive power, and a seventh lens with negative power. May include a lens. By satisfying the [conditional expressions] presented through the embodiment(s), the lens assembly as described above can provide optical performance equivalent to a high-pixel image sensor that has been miniaturized and enlarged. In addition, various embodiments may be possible.

Description

Lens assembly and electronic device including same {LENS ASSEMBLY AND ELECTRONIC DEVICE INCLUDING THE SAME}

Embodiment(s) of the present disclosure relate to a lens assembly, for example, a lens assembly including a plurality of lenses, and an electronic device including the same.

Optical devices, such as cameras capable of taking images or video, have been widely used, and recently, digital cameras with solid-state image sensors such as charge coupled device (CCD) or complementary metal-oxide semiconductor (CMOS) have been used. Video cameras have become common. Optical devices employing solid-state image sensors (CCD or CMOS) are gradually replacing film-type optical devices because they are easier to store, copy, and move images than film-type optical devices.

Recently, two or more selected from a plurality of optical devices, for example, a macro camera, a telephoto camera, and/or a wide-angle camera, are mounted on a single electronic device to improve the quality of captured images and to provide various visual effects to the captured images. It was possible to grant it. For example, it is possible to acquire subject images through a plurality of cameras with different optical characteristics and synthesize them to obtain high-quality captured images. As multiple optical devices (e.g. cameras) are mounted to acquire high-quality captured images, electronic devices such as mobile communication terminals and smart phones are increasingly equipped with electronic devices specialized for shooting functions, such as digital compact cameras. It is expected to replace high-performance cameras such as single-lens reflex cameras (e.g. DSLR, digital single-lens reflex camera) in the future.

The above information may be provided as background technology for the purpose of aiding understanding of the present disclosure. No claim or determination is made as to whether any of the foregoing may apply as prior art with respect to the present disclosure.

According to an embodiment of the present disclosure, a lens assembly includes an image sensor and seven lenses sequentially arranged along an optical axis in a direction toward the image sensor, including a first lens with positive power and a negative power. A second lens with negative power, a third lens with positive power, a fourth lens with negative power, a fifth lens with positive power, a sixth lens with positive power, and a seventh lens with negative power. May include a lens. In one embodiment, the lens assembly may satisfy the following [Conditional Equation 1-3].

[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

Here, '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, and 'TTL' is the object of the first lens. It is the distance from the side to the image sensor, and 'ImgH' may be the maximum distance from the optical axis to the edge of the imaging surface of the image sensor.

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 a subject using the lens assembly. In one embodiment, the lens assembly includes an image sensor, and Seven lenses sequentially arranged along the optical axis in the direction toward the image sensor, including a first lens with positive power, a second lens with negative power, and a third lens with positive power. It may include a lens, a fourth lens with negative refractive power, a fifth lens with positive refractive power, a sixth lens with positive refractive power, and a seventh lens with negative refractive power. In one embodiment, the lens assembly may satisfy the following [Conditional Expression 7-9].

[Conditional expression 7]

1 =< efl/f1 =< 2

[Conditional expression 8]

1.3 =< Fno =< 1.7

[Conditional expression 9]

0.59 =< TTL/(ImgH*2) =< 0.68

Here, '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, and 'TTL' is the object of the first lens. It is the distance from the side to the image sensor, and 'ImgH' may be the maximum distance from the optical axis to the edge of the imaging surface of the image sensor.

The above-described or other aspects, configurations and/or advantages of an embodiment of the present disclosure may become clearer through the following detailed description with reference to the accompanying drawings.
1 is a block diagram showing an electronic device in a network environment, according to an embodiment of the present disclosure.
Figure 2 is a block diagram illustrating a camera module according to an embodiment of the present disclosure.
Figure 3 is a perspective view showing the front of an electronic device according to an embodiment of the present disclosure.
FIG. 4 is a perspective view showing the rear of the electronic device shown in FIG. 3 according to an embodiment of the present disclosure.
Figure 5 is a diagram showing a lens assembly according to an embodiment of the present disclosure.
FIG. 6 is a graph showing spherical aberration of the lens assembly of FIG. 5 according to an embodiment of the present disclosure.
FIG. 7 is a graph showing astigmatism of the lens assembly of FIG. 5 according to an embodiment of the present disclosure.
FIG. 8 is a graph showing the distortion rate of the lens assembly of FIG. 5 according to an embodiment of the present disclosure.
9 is a diagram illustrating a lens assembly according to an embodiment of the present disclosure.
FIG. 10 is a graph showing spherical aberration of the lens assembly of FIG. 9 according to an embodiment of the present disclosure.
FIG. 11 is a graph showing astigmatism of the lens assembly of FIG. 9 according to an embodiment of the present disclosure.
FIG. 12 is a graph showing the distortion rate of the lens assembly of FIG. 9 according to an embodiment of the present disclosure.
Figure 13 is a diagram showing a lens assembly according to an embodiment of the present disclosure.
FIG. 14 is a graph showing spherical aberration of the lens assembly of FIG. 13 according to an embodiment of the present disclosure.
FIG. 15 is a graph showing astigmatism of the lens assembly of FIG. 13 according to an embodiment of the present disclosure.
FIG. 16 is a graph showing the distortion rate of the lens assembly of FIG. 13 according to an embodiment of the present disclosure.
Throughout the accompanying drawings, similar parts, components and/or structures may be assigned similar reference numbers.

As previously mentioned, a single miniaturized electronic device includes a standard camera, a wide-angle (or ultra-wide-angle) camera, a macro camera, and/or a telephoto camera, thereby acquiring multiple images of one subject and combining them. High quality images can be obtained. Cameras or lens assemblies may be classified according to their angle of view (or focal length) as standard cameras, wide-angle (or ultra-wide) cameras, macro cameras, and/or telephoto cameras. When mounting multiple cameras in a portable electronic device such as a smart phone, it may be difficult to secure 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 the size and performance of solid-state image sensors have improved dramatically, the poor installation environment makes it difficult to improve the optical performance of the lens assembly. On the other hand, there may be difficulties in securing mass production while suppressing an increase in manufacturing costs due to an increase in the number of lens assemblies mounted on one electronic device.

Embodiment(s) of the present disclosure are intended to solve at least the problems and/or disadvantages described above and provide at least the advantages described later, and provide a miniaturized lens assembly and/or an electronic device including the same while providing good optical performance. can be provided.

Embodiment(s) of the present disclosure may provide a lens assembly and/or an electronic device including the same that provides improved optical performance enough to satisfy the performance required for a high-performance image sensor.

The technical challenges sought to be achieved in this document are not limited to the technical challenges mentioned above, and other technical challenges not mentioned can be clearly understood by those skilled in the art of this document from the description below. There will be.

The following description in conjunction with the accompanying drawings may provide an understanding of various exemplary implementations of the present disclosure, including the claims and corresponding content. The example embodiments disclosed in the following description include numerous specific details to aid understanding, but are considered to be one of a variety of example embodiments. Accordingly, a person skilled in the art will understand that various changes and modifications to the various implementations described in this document can be made without departing from the scope and technical spirit of the disclosure. Additionally, for clarity and conciseness, descriptions of well-known functions and configurations may be omitted.

The terms and words used in the following description and claims are not limited to a referential meaning and may be used to clearly and consistently describe an embodiment of the present disclosure. Accordingly, it will be clear to those skilled in the art that the following description of various implementations of disclosures is provided for illustrative purposes and not for the purpose of limiting the scope of rights and disclosures stipulating equivalents.

Unless the context clearly dictates otherwise, the singular forms "a", "an", and "the" shall be understood to include plural meanings. Thus, for example, “component surface” may be understood to include one or more of the surfaces of the component.

1 is a block diagram of an electronic device 101 in a network environment 100, according to an embodiment of the present disclosure. Referring to FIG. 1, in the network environment 100, the electronic device 101 communicates with the electronic device 102 through a first network 198 (e.g., a short-range wireless communication network) or a second network 199. It is possible to communicate with at least one of the electronic device 104 or the server 108 through (e.g., a long-distance wireless communication network). According to one embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108. According to one embodiment, the electronic device 101 includes a processor 120, a memory 130, an input module 150, an audio output module 155, a display module 160, an audio module 170, and a sensor module ( 176), interface 177, connection terminal 178, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196 , or may include an antenna module 197. In one embodiment, at least one of these components (eg, the connection terminal 178) may be omitted, or one or more other components may be added to the electronic device 101. In one embodiment, some of these components (e.g., sensor module 176, camera module 180, or antenna module 197) are integrated into one component (e.g., display module 160). It can be.

The processor 120, for example, executes software (e.g., program 140) to operate at least one other component (e.g., hardware or software component) of the electronic device 101 connected to the processor 120. It can be controlled and various data processing or operations can be performed. According to one embodiment, as at least part of data processing or computation, the processor 120 stores instructions or data received from another component (e.g., sensor module 176 or communication module 190) in volatile memory 132. The commands or data stored in the volatile memory 132 can be processed, and the resulting data can be stored in the non-volatile memory 134. According to one embodiment, the processor 120 is a main processor 121 (e.g., a central processing unit or an application processor), or an auxiliary processor 123 that can operate independently or together (e.g., a graphics processing unit, a neural network processing unit). (NPU; neural processing unit), image signal processor, sensor hub processor, or communication processor). For example, if the electronic device 101 includes a main processor 121 and a auxiliary processor 123, the auxiliary processor 123 may be set to use lower power than the main processor 121 or be specialized for a designated function. You can. The auxiliary processor 123 may be implemented separately from the main processor 121 or as part of it.

The auxiliary processor 123 may, for example, act on behalf of the main processor 121 while the main processor 121 is in an inactive (e.g., sleep) state, or while the main processor 121 is in an active (e.g., application execution) state. ), together with the main processor 121, at least one of the components of the electronic device 101 (e.g., the display module 160, the sensor module 176, or the communication module 190) At least some of the functions or states related to can be controlled. According to one embodiment, co-processor 123 (e.g., image signal processor or communication processor) may be implemented as part of another functionally related component (e.g., camera module 180 or communication module 190). there is. According to one embodiment, the auxiliary processor 123 (eg, neural network processing device) may include a hardware structure specialized for processing artificial intelligence models. Artificial intelligence models can be created through machine learning. For example, such learning may be performed in the electronic device 101 itself on which the artificial intelligence model is performed, or may be performed through a separate server (e.g., server 108). Learning algorithms may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but It is not limited. An artificial intelligence model may include multiple artificial neural network layers. Artificial neural networks include deep neural network (DNN), convolutional neural network (CNN), recurrent neural network (RNN), restricted boltzmann machine (RBM), belief deep network (DBN), bidirectional recurrent deep neural network (BRDNN), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the examples described above. In addition to hardware structures, artificial intelligence models may additionally or alternatively include software structures.

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

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

The input module 150 may receive commands or data to be used in a component of the electronic device 101 (e.g., the processor 120) from outside the electronic device 101 (e.g., a user). The input module 150 may include, for example, a microphone, mouse, keyboard, keys (eg, buttons), or digital pen (eg, stylus pen).

The sound output module 155 may output sound signals to the outside of the electronic device 101. The sound output module 155 may include, for example, a speaker or a receiver. Speakers can be used for general purposes such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part of it.

The display module 160 can visually provide information to the outside of the electronic device 101 (eg, a user). The display module 160 may include, for example, a display, a hologram device, or a projector, and a control circuit for controlling the device. According to one embodiment, the display module 160 may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of force generated by the touch.

The audio module 170 can convert sound into an electrical signal or, conversely, convert an electrical signal into sound. According to one embodiment, the audio module 170 acquires sound through the input module 150, the sound output module 155, or an external electronic device (e.g. : Sound can be output through the electronic device 102 (e.g., speaker or headphone).

The sensor module 176 detects the operating state (e.g., power or temperature) of the electronic device 101 or the external environmental state (e.g., user state) and generates an electrical signal or data value corresponding to the detected state. can do. According to one embodiment, the sensor module 176 includes, for example, a gesture sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, humidity sensor, or light sensor.

The interface 177 may support one or more designated protocols that can be used to connect the electronic device 101 to an external electronic device (eg, the electronic device 102) directly or wirelessly. According to one embodiment, the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (eg, the electronic device 102). According to one embodiment, the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 179 can convert electrical signals into mechanical stimulation (e.g., vibration or movement) or electrical stimulation that the user can perceive through tactile or kinesthetic senses. According to one embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 can capture still images and moving images. According to one embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 188 can manage power supplied to the electronic device 101. According to one embodiment, the power management module 188 may be implemented as at least a part of, for example, a power management integrated circuit (PMIC).

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

The communication module 190 is a direct (e.g., wired) communication channel or wireless communication channel between the electronic device 101 and an external electronic device (e.g., the electronic device 102, the electronic device 104, or the server 108). can support the establishment of and communication through established communication channels. Communication module 190 operates independently of processor 120 (e.g., an application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module 190 may be 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., : LAN (local area network) communication module, or power line communication module) may be included. Among these communication modules, the corresponding communication module is a first network 198 (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (e.g., legacy It can communicate with external electronic devices through telecommunication networks such as cellular networks, 5G networks, next-generation communication networks, the Internet, or computer networks (e.g., LAN or WAN). These various types of communication modules may be integrated into one component (e.g., a single chip) or may be implemented as a plurality of separate components (e.g., multiple chips). The wireless communication module 192 uses subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 to communicate within a communication network such as the first network 198 or the second network 199. The electronic device 101 can be confirmed or authenticated.

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

The antenna module 197 may transmit or receive signals or power to or from the outside (eg, an external electronic device). According to one embodiment, the antenna module may include an antenna including a radiator made of a conductor or a conductive pattern formed on a substrate (eg, PCB). According to one embodiment, the antenna module 197 may include a plurality of antennas (eg, an array antenna). In this case, at least one antenna suitable for the communication method used in the communication network, such as the first network 198 or the second network 199, is connected to the plurality of antennas by, for example, the communication module 190. can be selected. Signals or power may be transmitted or received between the communication module 190 and an external electronic device through the at least one selected antenna. According to one embodiment, in addition to the radiator, other components (eg, radio frequency integrated circuit (RFIC)) may be additionally formed as part of the antenna module 197.

According to one embodiment, the antenna module 197 may form a mmWave antenna module. According to one embodiment, a mmWave antenna module includes a printed circuit board, an RFIC disposed on or adjacent to a first side (e.g., bottom side) of the printed circuit board and capable of supporting a designated high-frequency band (e.g., mmWave band); And a plurality of antennas (e.g., array antennas) disposed on or adjacent to the second side (e.g., top or side) of the printed circuit board and capable of transmitting or receiving signals in the designated high frequency band. can do.

At least some of the components are connected to each other through a communication method between peripheral devices (e.g., bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and signal ( (e.g. commands or data) can be exchanged with each other.

According to one embodiment, commands or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199. Each of the external electronic devices 102 or 104 may be of the same or different type as the electronic device 101. According to one embodiment, all or part of the operations performed in the electronic device 101 may be executed in one or more of the external electronic devices 102, 104, or 108. For example, when the electronic device 101 needs to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device 101 may perform the function or service instead of executing the function or service on its own. Alternatively, or additionally, one or more external electronic devices may be requested to perform at least part of the function or service. One or more external electronic devices that have received the request may execute at least part of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device 101. The electronic device 101 may process the result as is or additionally and provide it as at least part of a response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology can be used. The electronic device 101 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing. In one embodiment, the external electronic device 104 may include an Internet of Things (IoT) device. Server 108 may be an intelligent server using machine learning and/or neural networks. According to one embodiment, the external electronic device 104 or server 108 may be included in the second network 199. The electronic device 101 may be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

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

The flash 220 may emit light used to enhance light emitted or reflected from a subject. According to one embodiment, the flash 220 may include one or more light emitting diodes (eg, red-green-blue (RGB) LED, white LED, infrared LED, or ultraviolet LED), or a xenon lamp. The image sensor 230 may acquire an image corresponding to the subject by converting light emitted or reflected from the subject and transmitted through the lens assembly 210 into an electrical signal. According to one embodiment, the image sensor 230 is one image sensor selected from among image sensors with different properties, such as an RGB sensor, a BW (black and white) sensor, an IR sensor, or a UV sensor, and the same It may include a plurality of image sensors having different 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 charged coupled device (CCD) sensor or a complementary metal oxide semiconductor (CMOS) sensor.

The image stabilizer 240 moves at least one lens or image sensor 230 included in the lens assembly 210 in a specific direction in response to the movement of the camera module 280 or the electronic device 201 including the same. The operating characteristics of the image sensor 230 can be controlled (e.g., adjusting read-out timing, etc.). This allows to compensate for at least some of the negative effects of said movement on the image being captured. According to one embodiment, the image stabilizer 240 uses a gyro sensor (not shown) or an acceleration sensor (not shown) disposed inside or outside the camera module 280 to stabilize the camera module 280 or an electronic device (e.g. : Such movement of the electronic device 101 in FIG. 1 can be detected. According to one 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 the image acquired through the image sensor 230 for the next image processing task. For example, when image acquisition is delayed due to the shutter or when multiple images are acquired at high speed, the acquired original image (e.g., Bayer-patterned image or high-resolution image) is stored in the memory 250. , the corresponding copy image (e.g., low resolution image) may be previewed through the display module 160 of FIG. 1. Thereafter, when a specified condition is satisfied (eg, user input or system command), at least a portion of the original image stored in the memory 250 may be obtained and processed, for example, by the image signal processor 260. According to one embodiment, the memory 250 may be configured as at least a part of a memory (eg, memory 130 of FIG. 1) or as a separate memory that operates independently.

The image signal processor 260 may perform one or more image processes on an image acquired through the image sensor 230 or an image stored in the memory 250. The one or more image processes may include, for example, depth map creation, three-dimensional modeling, panorama creation, feature point extraction, image compositing, or image compensation (e.g., noise reduction, resolution adjustment, brightness adjustment, blurring). may include blurring, sharpening, or softening. Additionally or alternatively, the image signal processor 260 may include at least one of the components included in the camera module 280 (e.g., an image sensor). (230)) may perform control (e.g., exposure time control, read-out timing control, etc.). The image processed by the image signal processor 260 is stored back in the memory 250 for further processing. or may be provided as an external component of the camera module 280 (e.g., memory 130, display module 160, electronic device 102, electronic device 104, or server 108 of FIG. 1). According to one embodiment, the image signal processor 260 may be configured as at least a part of a processor (e.g., the processor 120 of FIG. 1), or may be configured as a separate processor that operates independently of the processor 120. When the image signal processor 260 is configured as a separate processor from the processor 120, at least one image processed by the image signal processor 260 is displayed as is or after additional image processing by the processor 120. It may be displayed through module 160.

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

Electronic devices according to the embodiment(s) of the present disclosure may be of various types. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to embodiments of this document are not limited to the above-described devices.

The embodiment(s) of this document and the terms used herein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various changes, equivalents, or replacements of the embodiments. In connection with the description of the drawings, similar reference numbers may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the above items, unless the relevant context clearly indicates otherwise. In this document: “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 “A Each of phrases such as “at least one of , B, or C” may include any one of the items listed together in the corresponding phrase, or any possible combination thereof. Terms such as "first", "second", or "first" or "second" may be used simply to distinguish one element from another, and may be used to distinguish such elements in other respects, such as importance or order) is not limited. One (e.g. first) component is said to be “coupled” or “connected” to another (e.g. second) component, with or without the terms “functionally” or “communicatively”. Where mentioned, it means that any of the components can be connected to the other components directly (e.g. wired), wirelessly, or through a third component.

The term “module” used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as logic, logic block, component, or circuit, for example. It can be used as A module may be an integrated part or a minimum unit of the parts or a part thereof that performs one or more functions. For example, according to one embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of the present document are software (e.g., a program) that includes one or more instructions stored in a storage medium (e.g., internal memory or external memory) that can be read by a machine (e.g., an electronic device). It can be implemented as: For example, a processor (eg, processor) of a device (eg, electronic device) may call at least one instruction among one or more instructions stored from a storage medium and execute it. This allows the device to be operated to perform at least one function according to the at least one instruction called. The one or more instructions may include code generated by a compiler or code that can be executed by an interpreter. A storage medium that can be read by a device may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' only means that the storage medium is a tangible device and does not contain signals (e.g. electromagnetic waves). This term refers to cases where data is stored semi-permanently in the storage medium. There is no distinction between temporary storage cases.

According to one embodiment, methods according to various embodiments of the present disclosure may be included and provided in a computer program product. Computer program products are commodities and can be traded between sellers and buyers. The computer program product may be distributed in the form of a machine-readable storage medium (e.g. compact disc read only memory (CD-ROM)) or via an application store (e.g. Play Store ^TM ) or on two user devices (e.g. It can be distributed (e.g. downloaded or uploaded) directly between smartphones) or online. In the case of online distribution, at least a portion of the computer program product may be at least temporarily stored or temporarily created in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

According to embodiments, each component (e.g., module or program) of the above-described components may include a single or plural entity, and some of the plurality of entities may be separately arranged in other components. . According to embodiments, one or more of the components or operations described above may be omitted, or one or more other components or operations may be added. Alternatively or additionally, multiple components (eg, modules or programs) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each component of the plurality of components in the same or similar manner as those performed by the corresponding component of the plurality of components prior to the integration. . According to embodiments, operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or , or one or more other operations may be added.

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

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

According to one embodiment, the second surface 310B may be formed by a substantially opaque rear plate 311. The back plate 311 is formed, for example, by 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. It can be. The side 310C combines with the front plate 302 and the back plate 311 and may be formed by a side bezel structure (or “side member”) 318 comprising metal and/or polymer. In one embodiment, the back plate 311 and the side bezel structure 318 may be integrally formed and include the same material (eg, a metallic material such as aluminum).

In the illustrated embodiment, the front plate 302 has two first regions 310D that are curved and extend seamlessly from the first surface 310A toward the rear plate 311. It can be included at both ends of the long edge of (302). In the illustrated embodiment (see FIG. 4), the rear plate 311 is curved from the second surface 310B toward the front plate 302 to form two second regions 310E that extend seamlessly and have long edges. It can be included at both ends. In one embodiment, the front plate 302 (or the back plate 311) may include only one of the first areas 310D (or the second areas 310E). In one embodiment, some of the first areas 310D or the second areas 310E may not be included. In the above embodiments, when viewed from the side of the electronic device 300, the side bezel structure 318 is a side (e.g., a side that does not include the first area 310D or the second area 310E). The side where the connector hole 308 is formed) has a first thickness (or width), and the side including the first area 310D or the second area 310E (e.g., the side where the key input device 317 is disposed) has a first thickness (or width). The side surface may have a second thickness that is thinner than the first thickness.

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

The display 301 (e.g., display module 160 of FIG. 1) may be visually exposed, for example, through a significant portion of the front plate 302. In one embodiment, at least a portion of the display 301 may be visually exposed through the front plate 302 forming the first surface 310A and the first area 310D of the side surface 310C. there is. In one embodiment, the edges of the display 301 may be formed to be substantially the same as the adjacent outer shape of the front plate 302. In one embodiment (not shown), in order to expand the area to which the display 301 is visually exposed, the distance between the outer edge of the display 301 and the outer edge of the front plate 302 may be formed to be substantially the same.

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

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 placed inside the microphone hole 303, and in one embodiment, a plurality of microphones may be placed 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 calls. In one embodiment, the speaker holes 307 and 314 and the microphone hole 303 may be implemented as one hole, or a speaker may be included without the speaker holes 307 and 314 (e.g., piezo speaker).

The sensor modules 304, 316, and 319 may generate electrical signals or data values corresponding to the internal operating state of the electronic device 300 or the external environmental state. The sensor modules 304, 316, 319 may include, for example, a first sensor module 304 (e.g., a proximity sensor) and/or a second sensor module (e.g., a proximity sensor) disposed on the first side 310A of the housing 310. (not shown) (e.g., fingerprint sensor), and/or a third sensor module 319 (e.g., HRM sensor) and/or fourth sensor module 316 disposed on the second side 310B of the housing 310. ) (e.g., fingerprint sensor) may be included. The fingerprint sensor may be disposed on the first side 310A (eg, display 301) as well as the second side 310B of the housing 310. The electronic device 300 includes sensor modules not shown, for example, a gesture sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, It may further include at least one of a humidity sensor or an illuminance sensor.

The camera modules 305, 312, and 313 include a first camera device 305 disposed on the first side 310A of the electronic device 300, and a second camera device 312 disposed on the second side 310B. ) and/or a flash 313. 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 or a xenon lamp. In one embodiment, two or more lenses (an infrared camera, a wide-angle lens, and a telephoto lens) and image sensors may be placed on one side of the electronic device 300.

The key input device 317 may be disposed on the side 310C of the housing 310. In one embodiment, the electronic device 300 may not include some or all of the key input devices 317 mentioned above, and the key input devices 317 that are not included may include soft keys, etc. on the display 301. It can be implemented in different forms. In one embodiment, the key input device may include a sensor module 316 disposed on the second side 310B of the housing 310.

For example, the light emitting device 306 may be disposed on the first side 310A of the housing 310. For example, the light emitting device 306 may provide status information of the electronic device 300 in the form of light. In one embodiment, the light emitting device 306 may provide a light source that is linked to the operation of the camera module 305, for example. The light emitting device 306 may include, for example, an LED, an IR LED, and a xenon lamp.

The connector holes 308 and 309 are a first connector hole 308 that can accommodate a connector (for example, a USB connector) for transmitting and receiving power and/or data with an external electronic device, and/or an external electronic device. and a second connector hole (eg, earphone jack) 309 that can accommodate a connector for transmitting and receiving audio signals.

FIG. 5 is a diagram illustrating a lens assembly 400 according to an embodiment of the present disclosure. FIG. 6 is a graph showing spherical aberration of the lens assembly 400 of FIG. 5 according to an embodiment of the present disclosure. FIG. 7 is a graph showing astigmatism of the lens assembly 400 of FIG. 5 according to an embodiment of the present disclosure. FIG. 8 is a graph showing the distortion rate of the lens assembly 400 of FIG. 5 according to an embodiment of the present disclosure.

Figure 6 is a graph showing the spherical aberration of the lens assembly 400 according to an embodiment of the present disclosure, where the horizontal axis represents the coefficient of longitudinal spherical aberration, the vertical axis represents the normalized distance from the optical axis, and the light The change in longitudinal spherical aberration according to the wavelength is shown. Longitudinal spherical aberration, for example, has wavelengths of 656.3000 (NM, nanometer) (e.g. red), 587.6000 (NM) (e.g. yellow), 546.1000 (NM), 486.1000 (NM) (e.g. blue). , respectively, for light 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 with a wavelength of 546.1000 (NM), where 'S' illustrates a sagittal plane, and , 'T' illustrates the tangential plane. Figure 8 is a graph showing the distortion rate of the lens assembly 400 according to an embodiment of the present disclosure, for light with a wavelength of 546.1000 (NM).

5 to 8, a lens assembly 400 (e.g., lens assembly 210 of FIG. 2) according to one of various embodiments of the present disclosure includes an image sensor (I, 230) and seven lenses ( It may include L1, L2, L3, L4, L5, L6, L7). In one embodiment, the seven lenses (L1, L2, L3, L4, L5, L6, L7) are a first lens sequentially aligned along the optical axis (O) direction toward the image sensor (I, 230). 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). there is. In the detailed description below, the first lens L1 may be referred to as the “object-side first lens” and the seventh lens L7 may be referred to as the “sensor-side first lens.” In one embodiment, “aligned along the optical axis (O) direction” refers to the optical axis of each lens (L1, L2, L3, L4, L5, L6, L7) or the image sensor (I, 230) (e.g., imaging This may refer to the fact that the optical axes of the face (img) are aligned to coincide. The imaging surface (img) may receive or detect light aligned or focused by, for example, lenses L1, L2, L3, L4, L5, L6, and L7.

According to one embodiment, between the first lens L1 and the image sensor (I, 230), for example, an aperture (e.g., 'sto' is implemented on the lens surface in the lens assembly 400 of FIG. 5). Optical components such as an infrared cut-off filter (F) or an infrared cut-off filter (F) may be disposed. For example, the aperture (e.g., “stop” or “aperture”) is between the first lens (L1) and the seventh lens (L7), for example, seven lenses (L1, L2, L3, L4, L5). , L6, L7) can be placed between two adjacent lenses arbitrarily selected. Here, “an aperture is disposed between two arbitrarily selected adjacent lenses” may be understood to include a configuration in which an aperture is disposed on one of two lens surfaces facing each other in two adjacent lenses. In one embodiment, the infrared cut-off filter (F) allows light (e.g., infrared) of a wavelength that is not discernible to the user's naked eye but is detected by the photosensitive material of the film or the image sensor (I, 230) to be transmitted to the image sensor (I , 230) can be suppressed or blocked from being incident. This infrared cut-off filter (F) may be placed between the seventh lens (L7) and the image sensor (I, 230). Depending on the purpose of the lens assembly 400, the infrared cut-off filter F may be replaced with a band-pass filter that transmits infrared rays and suppresses or blocks visible light.

According to one embodiment, the infrared cut-off filter (F) and/or the image sensor (I, 230) may be described as a separate component from the lens assembly 400. For example, the infrared cut-off filter (F) and/or the image sensor (I, 230) may be an electronic device (e.g., the electronic device (101, 102, 104, 300) of FIG. 1 or FIG. 4) or an optical device (e.g., It can be mounted on the camera module (180, 280) of FIG. 1 or FIG. 2, and a plurality of lenses (L1, L2, L3, L4, L5, L6, L7) forming the lens assembly 400 have an optical axis (O). It may be mounted on an electronic or optical device in alignment with the infrared cut-off filter (F) and/or the image sensor (I, 230). In one embodiment, at least one of the lenses (L1, L2, L3, L4, L5, L6, L7) is capable of reciprocating along the optical axis (O) direction and is capable of reciprocating the electronic device (e.g., of FIG. 1 or FIG. 4). The electronic devices 101, 102, 104, and 300) or the processor 120 of FIG. 1 adjusts focus or focal length by reciprocating at least one of the lenses L1, L2, L3, L4, L5, L6, and L7. Adjustments can be made. In one embodiment, lens assembly 400 may be disposed as either camera module 305, 312, or 313 of FIG. 3 or 4.

According to one embodiment, the lenses (L1, L2, L3, L4, L5, L6, L7) may include an object side and a sensor side, respectively. For example, reference number 'S1' in FIG. 5 may indicate the object-side surface of the first lens (L1), and 'S11' may indicate the sensor-side surface of the fifth lens (L5). Although omitted in FIG. 5 illustrating the layout of the lenses (L1, L2, L3, L4, L5, L6, L7), the lens surface 'S7' shown in [Table 1] described later is the lens (L1, L2, It may be a reference position such as a structure referenced for the arrangement of (L3, L4, L5, L6, L7). In examining various embodiments later, for the sake of brevity of the drawings, some of the object side surface(s) and sensor side surface(s) of the lenses (L1, L2, L3, L4, L5, L6, L7) are shown in the drawings. Reference numbers may be omitted. Reference numbers for lens surfaces omitted from the drawings can be easily understood through the [tables] described below regarding lens data of each embodiment.

In the detailed description below, the shape of the lenses (L1, L2, L3, L4, L5, L6, L7) will be described using the terms 'concave' or 'convex' with respect to the object side or sensor side. You can. This reference to the shape of the lens surface may describe the point where it intersects the optical axis (O) or the shape of the paraxial region that intersects the optical axis (O). ‘The object-side surface is concave’ can describe a shape in which the center of the radius of curvature of the object-side surface is located on the object (OB) side. ‘The object-side surface is convex’ can describe a shape in which the center of the radius of curvature of the object-side surface is located on the image sensor (I, 230). ‘The sensor side surface is concave’ can describe a shape in which the center of the radius of curvature of the sensor side surface is located on the image sensor (I, 230). ‘The sensor side surface is convex’ can describe a shape in which the center of the radius of curvature of the sensor side surface is located on the object (OB) side. For example, in FIG. 5, the object-side surface S1 of the first lens L1 may be understood as convex, and the sensor-side surface S4 of the second lens L2 may be understood as concave.

According to one embodiment, the first lens (L1) has positive refractive power and may 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 have a large diameter and can easily control spherical aberration. In one embodiment, the first lens L1, together with the second lens L2 and/or the third lens L3, may have a meniscus shape convex toward the object OB. The shape of the first lens (L1), the second lens (L2), and/or the third lens (L3) is determined by the size of the lens assembly 400 (e.g., from the object side surface (S1) of the first lens (L1) It may be easy to reduce the “lens total length” defined as the distance to the image sensor (I, 230).

According to one embodiment, the second lens (L2) is made of a material that has negative refractive power and a high dispersion value (e.g., a material with a low Abbe number), thereby preventing the damage that may occur in the first lens (L1). Chromatic aberration can be easily corrected. To facilitate chromatic aberration correction, the second lens L2 may be made of a material having a refractive index of approximately 1.6 or more and approximately 1.7 or less. In one embodiment, the second lens L2 is combined with the third lens L3 to achieve negative refractive power, thereby easily correcting coma aberration or field curvature. In one embodiment, when the aperture is disposed between the second lens L2 and the third lens L3, the lens assembly 400 is miniaturized and it is easy to secure the amount of ambient light. In FIG. 5 , the aperture may be implemented on the object-side surface S5 of the third lens L3, and when the aperture is disposed on the lens surface, 'sto' may be added to the lens surface reference number. In one embodiment, when the aperture is disposed between the second lens (L2) and the third lens (L3), it can be effective in cutting the incident light and can easily control spherical aberration or coma aberration. there is.

According to one embodiment, the third lens L3 has positive refractive power and may be a meniscus lens convex toward the object OB together with the first lens L1 and/or the second lens L3. When at least one or all of the first lens L1, second lens L2, and/or third lens L3 are meniscus lenses convex toward the object OB, it is easy to miniaturize the lens assembly 400. I mentioned earlier that it can be done.

According to one embodiment, the fourth lens L4 has negative refractive power and may be a meniscus lens that is 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. For example, the fourth lens L2 is made of a material having a refractive index of approximately 1.6 or more and approximately 1.7 or less, thereby facilitating chromatic aberration correction. In one embodiment, the fourth lens L4 may include an inflection point on at least one of the object-side surface S8 and the sensor-side surface S9. Note that in Figure 5, the inflection point(s) are illustrated with the symbol '◆' and reference numbers are omitted. Since the fourth lens L4 has a meniscus shape and/or includes an inflection point, aberration correction may be easily performed in the peripheral area around the paraxial region.

According to one embodiment, the fifth lens L5 may have positive refractive power and may be an aspherical lens. Since the fifth lens L5 is implemented as an aspherical lens, coma aberration in the peripheral area can be easily controlled. For example, the fifth lens L5 may include an inflection point on at least one of the object-side surface S10 and the sensor-side surface S11, where the object-side surface S10 is convex and the sensor-side surface S11. ) can be concave. This shape of the fifth lens L5 facilitates control of various aberrations and can increase the light ratio in the surrounding area. In one embodiment, in order to facilitate chromatic aberration correction, the fifth lens L5 may be made of a material having a refractive index of approximately 1.6 or more and approximately 1.7 or less.

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

According to one embodiment, the seventh lens L7 has negative refractive power, and the object-side surface S14 and/or the sensor-side surface S15 may be implemented as an aspherical surface. In one embodiment, at least one of the object-side surface S14 and the sensor-side surface S15 of the seventh lens L7 may include an inflection point. For example, the sensor side surface S15 of the seventh lens L7 includes one or more inflection points, thereby suppressing field curvature from the proximal area to the peripheral area. In one embodiment, 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, respectively. In one embodiment, the peripheral area of the seventh lens L7 may be shaped to get closer to the sixth lens L6 as it moves away from the optical axis O. For example, the peripheral area 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. This shape of the seventh lens L7 can easily reduce the effective diameter of the seventh lens L7. For example, the seventh lens L7 may have a shape that miniaturizes the lens assembly 400.

According to one embodiment, the first lens L1, the second lens L2, and/or the third lens L3 have a meniscus shape convex toward the object OB, thereby miniaturizing the lens assembly 400. It can be. In one embodiment, the fourth lens (L4), the fifth lens (L5), the sixth lens (L6), and/or the seventh lens (L7) each include an inflection point on at least one of the object side surface and the sensor side surface. When doing this, it can be easy to correct various aberrations in the surrounding area around the paraxial region. In one embodiment, in order to facilitate chromatic aberration correction, at least one of the second lens (L2), fourth lens (L4), and/or fifth lens (L5) may be made of a material having a refractive index of approximately 1.6 or more. there is.

Below, in examining the conditions presented through [mathematical equations], the distance between two selected lens surfaces, the distance between one selected lens surface and the aperture, and/or the selected one lens surface and the image sensor Distance between (I) (e.g. imaging planes (img)), overall lens length, etc. may be mentioned. This distance or length may be understood as a distance measured from the optical axis (O), unless otherwise specified. The reference numbers of the lens surfaces may differ depending on the embodiment, and in the lens assemblies 500 and 600 of FIG. 9 or 13, the reference numbers of the lens surfaces are largely omitted in the drawings, but those skilled in the art can refer to [Table 6] and [Table 6] regarding lens data. /Or, you can easily understand the reference numbers on the lens surface by referring to [Table 11].

According to one embodiment, the lens assembly 400 may satisfy the conditions presented through the following [Equation 1].

In [Equation 1], 'f' may be the effective focal length of the lens assembly 400, and 'f1' may be the focal length of the first lens L1. In one embodiment, when the calculated value of [Equation 1] is greater than 2, the refractive power of the first lens L1 increases and there may be difficulty in correcting aberrations (e.g., spherical aberration), and in [Equation 1] When the calculated value becomes less than 1, miniaturization of the lens assembly 400 may be difficult. For example, when the conditions of [Equation 1] are satisfied, the lens assembly 400 can be easily miniaturized, and aberration correction is easy, so the optical performance of the lens assembly 400 can be stabilized.

According to one embodiment, the lens assembly 400 may satisfy the conditions presented through the following [Equation 2].

In [Equation 2], 'Fno' may be the F number of the lens assembly 400. When the F number of the lens assembly 400 becomes greater than 1.7, the resolution (deflection limit) decreases, and when it becomes less than 1.3, it becomes brighter, but an additional lens may be required to secure optical performance. For example, when the F number of the lens assembly 400 becomes smaller than 1.3, there may be difficulty in miniaturizing the lens assembly 400. For example, [Equation 2] can present conditions under which good optical performance can be secured while miniaturizing the lens assembly 400.

According to one embodiment, the lens assembly 400 may satisfy the conditions presented through the following [Equation 3].

In [Equation 3], 'TTL' is 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' is the optical axis ( It may be the maximum distance from O) to the edge of the image sensor (I) (e.g., imaging plane (img)). For example, 'ImgH*2' can be understood as the total diagonal length of the imaging plane (img). In one embodiment, [Equation 3] regarding the ratio of the overall length of the lens, the size of the image sensor (I) to TTL, and ImgH may be referred to as a slim factor. In one embodiment, when the slim factor becomes larger than 0.68, there may be difficulty in miniaturizing the lens assembly 400, and when it becomes smaller than 0.59, there may be difficulty in securing the angle of view, and the lenses (L1, L2, L3, L4, It may be difficult to secure space for processing or placement of L5, L6, L7). In one embodiment, when the overall length of the lens is reduced due to a smaller slim factor, there may be difficulty in securing MTF performance or controlling aberrations. For example, [Equation 3] can present conditions under which mass production can be secured while being mounted on a miniaturized electronic device (e.g., the electronic devices 101, 102, 104, and 300 of FIGS. 1 to 4).

According to one embodiment, the lens assembly 400 may satisfy the conditions presented through the following [Equation 4].

In [Equation 4], 'T1' is the 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 the 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] presents conditions regarding the position of the aperture between the lenses (L1, L2, L3, L4, L5, L6, L7), which allows the lens assembly 400 to be miniaturized while Securing the amount of ambient light can provide good conditions. In one embodiment, the aperture may be disposed between the second lens (L2) and the third lens (L3), and in the lens assembly 400 of FIG. 5, the object-side surface (S5) of the third lens (L3) A configuration arranged in can be exemplified.

In one embodiment, when the calculated value of [Equation 4] is smaller than 0.1, miniaturization is easy, but various aberration control or optimization of MTF (Modulation Transfer Function) performance may be difficult. In one embodiment, when the calculated value of [Equation 4] is less than 0.1, acquisition of normal light rays in the surrounding area may be limited, making it difficult to secure the amount of surrounding light. In one embodiment, when the calculated value of [Equation 4] is greater than 0.3, the aperture is disposed close to the image sensor (I), thereby expanding the overall lens length and limiting the acquisition of lower rays in the surrounding area.

According to one embodiment, the lens assembly 400 may satisfy the conditions presented through the following [Equation 5].

In [Equation 5], 'f23' may be a focal length implemented by combining the second lens (L2) and the third lens (L3). It has been previously mentioned that negative refractive power is realized by combining the second lens (L2) and the third lens (L3). By satisfying the conditions of [Equation 5], the lens assembly 400 can achieve a balanced overall refractive power and have good optical performance while being miniaturized. For example, when the calculated value of [Equation 5] is greater than 0, the positive refractive power in the lens assembly 400 increases and there may be difficulty in correcting aberrations (eg, coma aberration). In one embodiment, when the calculated value of [Equation 5] is less than -50, the overall refractive power of the lens assembly 400 decreases, which may make miniaturization difficult.

According to one embodiment, the lens assembly 400 may satisfy the conditions presented through the following [Equation 6].

In [Equation 6], 'vd-min' may refer to the Abbe number, which is the minimum among the Abbe numbers of the lenses (L1, L2, L3, L4, L5, L6, L7). In one embodiment, the lens assembly 400 can easily correct chromatic aberration and have stable optical performance by satisfying the conditions of [Equation 6].

According to one embodiment, lens assembly 400 may have a focal length of approximately 5.25 mm, an F-number of approximately 1.58, and/or an angle of view of approximately 83 degrees. In one embodiment, the lens assembly 400 has the shape and refractive power of the above-described lenses (L1, L2, L3, L4, L5, L6, L7) (e.g., lens surface)(s), and/or [Equation] At least some of the conditions presented through these can be satisfied, and it can be manufactured with the specifications shown in [Table 1] below.

lens surface
(Surf) radius of curvature
(radius) thickness
(Thick) refractive index
(nd) Abesu
(vd) obj infinity 1000 One 2.106 0.926 1.54401 55.91 2 10.064 0.036 3 5.845 0.26 1.67073 19.23 4 3.245 0.219 sto 7.114 0.358 1.535 55.75 6 13.845 0.08 7 infinity 0.26 8 -63.134 0.338 1.67073 19.23 9 32.965 0.244 10 4.163 0.249 1.63914 23.51 11 4.719 0.465 12 9.926 1.008 1.535 55.75 13 -2.582 0.289 14 -4.75 0.451 1.54401 55.91 15 2.231 0.167 16 infinity 0.11 1.5168 64.2 17 infinity 0.77 img infinity 0.025

[Table 2], [Table 3], [Table 4], and [Table 5] below describe the aspheric coefficients of the lenses (L1, L2, L3, L4, L5, L6, L7) and define the aspheric surface. can be calculated through the following [Equation 7].

In [Equation 7], “x” is the distance in the direction of the optical axis (O) from the point where the optical axis (O) passes on the lens surface, and “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 where the optical axis (O) passes on the lens surface, “K” is the conic constant, and “Ai” is the aspheric coefficient.

lens surface
(Surf) 1_ASP 2_ASP 3_ASP 4_ASP Radius 2.10609E+00 1.00643E+01 5.84474E+00 3.24483E+00 K(Conic) -1.38736E+00 9.15267E-01 -5.86335E-01 2.30636E+00 A(4th)/C4 7.42252E-03 -4.04295E-02 -4.39571E-02 -6.62364E-03 B(6th)/C5 7.44575E-02 8.90122E-02 5.73110E-02 -2.17435E-01 C(8th)/C6 -3.22380E-01 -1.81843E-01 -2.92980E-02 1.66276E+00 D(10th)/C7 8.86448E-01 4.02362E-01 -2.06794E-02 -7.46608E+00 E(12th)/C8 -1.63239E+00 -8.23426E-01 4.76434E-02 2.25408E+01 F(14th)/C9 2.10093E+00 1.31837E+00 -3.65737E-02 -4.79329E+01 G(16th)/C10 -1.94081E+00 -1.55522E+00 1.49825E-02 7.34314E+01 H(18th)/C11 1.30458E+00 1.33087E+00 -3.26975E-03 -8.18525E+01 J(20th)/C12 -6.39429E-01 -8.19910E-01 2.99163E-04 6.63581E+01 K(22nd)/C13 2.26210E-01 3.58907E-01 0.00000E+00 -3.86654E+01 L(24th)/C14 -5.62564E-02 -1.08696E-01 0.00000E+00 1.57556E+01 M(26th)/C15 9.32983E-03 2.16232E-02 0.00000E+00 -4.25701E+00 N(28th)/C16 -9.26252E-04 -2.53960E-03 0.00000E+00 6.84448E-01 O(30th)/C17 4.16295E-05 1.33359E-04 0.00000E+00 -4.95208E-02

lens surface
(Surf) 5_ASP 6_ASP 8_ASP 9_ASP Radius 7.11355E+00 1.38445E+01 -6.31344E+01 3.29653E+01 K(Conic) -2.36615E+01 -9.90000E+01 -2.63298E+01 9.69973E+01 A(4th)/C4 1.71198E-02 -2.14417E-02 -5.63683E-02 -6.37734E-02 B(6th)/C5 -1.74175E-01 2.07481E-01 -4.22973E-02 -1.25075E-01 C(8th)/C6 1.33228E+00 -1.38320E+00 6.15590E-01 9.87494E-01 D(10th)/C7 -6.45664E+00 5.46827E+00 -3.62094E+00 -3.82610E+00 E(12th)/C8 2.10907E+01 -1.37565E+01 1.23713E+01 9.61554E+00 F(14th)/C9 -4.82595E+01 2.21264E+01 -2.78262E+01 -1.70646E+01 G(16th)/C10 7.91380E+01 -2.06686E+01 4.28681E+01 2.20616E+01 H(18th)/C11 -9.39884E+01 5.05778E+00 -4.55245E+01 -2.09989E+01 J(20th)/C12 8.08404E+01 1.37861E+01 3.25978E+01 1.46814E+01 K(22nd)/C13 -4.97753E+01 -2.08456E+01 -1.46754E+01 -7.43245E+00 L(24th)/C14 2.13538E+01 1.49072E+01 3.29532E+00 2.64512E+00 M(26th)/C15 -6.05412E+00 -6.15208E+00 1.46422E-01 -6.26401E-01 N(28th)/C16 1.01847E+00 1.40725E+00 -2.52069E-01 8.84875E-02 O(30th)/C17 -7.69171E-02 -1.38823E-01 4.02553E-02 -5.63494E-03

lens surface
(Surf) 10_ASP 11_ASP 12_ASP Radius 4.16282E+00 4.71850E+00 9.92622E+00 K(Conic) -3.71342E+01 8.54481E-01 1.34879E+01 A(4th)/C4 -7.31655E-02 -1.07012E-01 1.02289E-04 B(6th)/C5 1.19196E-01 4.02150E-02 -3.11501E-02 C(8th)/C6 -4.59544E-01 2.27674E-02 3.04752E-02 D(10th)/C7 1.43226E+00 -9.24617E-02 -2.81976E-02 E(12th)/C8 -3.01639E+00 1.58042E-01 1.86916E-02 F(14th)/C9 4.39610E+00 -1.78768E-01 -8.32492E-03 G(16th)/C10 -4.56129E+00 1.39116E-01 2.40294E-03 H(18th)/C11 3.41236E+00 -7.59358E-02 -4.10923E-04 J(20th)/C12 -1.84139E+00 2.93658E-02 2.91008E-05 K(22nd)/C13 7.08495E-01 -8.01598E-03 2.35687E-06 L(24th)/C14 -1.89146E-01 1.51094E-03 -5.68154E-07 M(26th)/C15 3.32215E-02 -1.87068E-04 1.98396E-08 N(28th)/C16 -3.44525E-03 1.36795E-05 2.41427E-09 O(30th)/C17 1.59539E-04 -4.47330E-07 -1.64198E-10

lens surface
(Surf) 13_ASP 14_ASP 15_ASP Radius -2.58243E+00 -4.74957E+00 2.23103E+00 K(Conic) -3.85250E-01 -4.11412E+00 -9.36900E+00 A(4th)/C4 1.18819E-01 -3.47978E-02 -6.55803E-02 B(6th)/C5 -7.23765E-02 5.49097E-03 3.62260E-02 C(8th)/C6 4.60450E-02 7.35115E-04 -1.78952E-02 D(10th)/C7 -3.09589E-02 -6.41727E-04 6.78924E-03 E(12th)/C8 1.79426E-02 2.73997E-04 -1.91876E-03 F(14th)/C9 -8.24559E-03 -8.20229E-05 4.01628E-04 G(16th)/C10 2.92262E-03 1.71049E-05 -6.22063E-05 H(18th)/C11 -7.85849E-04 -2.50801E-06 7.11475E-06 J(20th)/C12 1.57531E-04 2.60437E-07 -5.96762E-07 K(22nd)/C13 -2.30036E-05 -1.90530E-08 3.61430E-08 L(24th)/C14 2.36338E-06 9.60041E-10 -1.53452E-09 M(26th)/C15 -1.61212E-07 -3.17012E-11 4.32396E-11 N(28th)/C16 6.53336E-09 6.17326E-13 -7.25015E-13 O(30th)/C17 -1.18756E-10 -5.37281E-15 5.46723E-15

FIG. 9 is a diagram illustrating a lens assembly 500 according to an embodiment of the present disclosure. FIG. 10 is a graph showing spherical aberration of the lens assembly 500 of FIG. 9 according to an embodiment of the present disclosure. FIG. 11 is a graph showing astigmatism of the lens assembly 500 of FIG. 9 according to an embodiment of the present disclosure. FIG. 12 is a graph showing the distortion rate of the lens assembly 500 of FIG. 9 according to an embodiment of the present disclosure.

Lens assembly 500 of FIG. 9 may have a focal length of approximately 5.20 mm, an F-number of approximately 1.58, and/or an angle of view of approximately 83 degrees. In one embodiment, the lens assembly 500 has the shape and refractive power of the above-described lenses (L1, L2, L3, L4, L5, L6, L7) (e.g., lens surface)(s), and/or [Equation] It is possible to satisfy at least some of the conditions presented through these, and can be manufactured with the specifications shown in [Table 6] below, and the aspheric coefficients in [Table 7], [Table 8], [Table 9], and [Table 10] You can have it.

lens surface
(Surf) radius of curvature
(radius) thickness
(Thick) refractive index
(nd) Abesu
(vd) obj infinity 1000 One infinity 0.3 2 2.223 0.845 1.54401 55.91 3 14.381 0.05 4 5.518 0.21 1.67073 19.23 5 2.95 0.228 sto 5.144 0.38 1.54401 55.91 7 10.421 0.433 8 -20.022 0.301 1.67073 19.23 9 30.425 0.2 10 3.375 0.307 1.63914 23.51 11 3.799 0.477 12 7.746 0.88 1.54401 55.91 13 -3.623 0.451 14 -163.677 0.4 1.54401 55.91 15 1.862 0.188 16 infinity 0.11 1.5168 64.2 17 infinity 0.76 img infinity 0.03

lens surface
(Surf) 2_ASP 3_ASP 4_ASP 5_ASP Radius 2.22277E+00 1.43814E+01 5.51846E+00 2.95043E+00 K(Conic) -1.47369E+00 8.66457E-02 -2.41773E-01 6.95140E-02 A(4th)/C4 -3.45330E-03 1.03448E-02 -3.06571E-02 -4.16084E-02 B(6th)/C5 1.61241E-01 1.83124E-02 4.01064E-02 -9.36406E-02 C(8th)/C6 -7.74534E-01 -2.87848E-01 -3.09433E-01 1.17425E+00 D(10th)/C7 2.35946E+00 1.33368E+00 1.53360E+00 -6.40467E+00 E(12th)/C8 -4.79579E+00 -3.50818E+00 -4.55316E+00 2.10417E+01 F(14th)/C9 6.75613E+00 5.96175E+00 8.78477E+00 -4.57985E+01 G(16th)/C10 -6.76467E+00 -6.92651E+00 -1.15646E+01 6.92114E+01 H(18th)/C11 4.88040E+00 5.65754E+00 1.06717E+01 -7.43396E+01 J(20th)/C12 -2.54392E+00 -3.28289E+00 -6.97843E+00 5.71806E+01 K(22nd)/C13 9.49057E-01 1.34706E+00 3.22068E+00 -3.12813E+01 L(24th)/C14 -2.47024E-01 -3.82231E-01 -1.02648E+00 1.18819E+01 M(26th)/C15 4.25908E-02 7.13740E-02 2.15084E-01 -2.97802E+00 N(28th)/C16 -4.37016E-03 -7.89287E-03 -2.66724E-02 4.42751E-01 O(30th)/C17 2.01973E-04 3.91710E-04 1.48376E-03 -2.95647E-02

lens surface
(Surf) 6_ASP 7_ASP 8_ASP 9_ASP Radius 5.14448E+00 1.04212E+01 -2.00223E+01 3.04248E+01 K(Conic) 3.05388E+00 -1.00000E+00 0.00000E+00 0.00000E+00 A(4th)/C4 4.79651E-03 5.27619E-04 -6.32862E-02 -1.33023E-01 B(6th)/C5 -1.42512E-02 -7.49128E-02 1.44349E-02 2.75909E-01 C(8th)/C6 2.96376E-02 1.52965E+00 1.15632E-01 -9.31016E-01 D(10th)/C7 -3.76977E-02 -1.19538E+01 -6.50893E-01 2.51965E+00 E(12th)/C8 2.78501E-02 5.35770E+01 1.48530E+00 -4.87605E+00 F(14th)/C9 -8.79198E-03 -1.54826E+02 -1.96568E+00 6.50131E+00 G(16th)/C10 1.04178E-03 3.05108E+02 1.60889E+00 -5.96156E+00 H(18th)/C11 0.00000E+00 -4.21925E+02 -8.04630E-01 3.74475E+00 J(20th)/C12 0.00000E+00 4.13966E+02 2.26072E-01 -1.57987E+00 K(22nd)/C13 0.00000E+00 -2.86927E+02 -2.74074E-02 4.26950E-01 L(24th)/C14 0.00000E+00 1.37420E+02 0.00000E+00 -6.65960E-02 M(26th)/C15 0.00000E+00 -4.32837E+01 0.00000E+00 4.54572E-03 N(28th)/C16 0.00000E+00 8.06933E+00 0.00000E+00 0.00000E+00 O(30th)/C17 0.00000E+00 -6.74794E-01 0.00000E+00 0.00000E+00

lens surface
(Surf) 10_ASP 11_ASP 12_ASP Radius 3.37548E+00 3.79855E+00 7.74569E+00 K(Conic) -2.55857E+01 -2.33467E+01 5.36309E+00 A(4th)/C4 -7.60808E-02 -5.88609E-02 -3.92839E-03 B(6th)/C5 -2.34181E-03 -1.29881E-03 1.71100E-02 C(8th)/C6 3.79668E-01 8.35688E-02 -8.21206E-02 D(10th)/C7 -1.40528E+00 -1.74376E-01 1.27341E-01 E(12th)/C8 3.05289E+00 2.49972E-01 -1.22958E-01 F(14th)/C9 -4.45839E+00 -2.59613E-01 8.13987E-02 G(16th)/C10 4.56392E+00 1.91057E-01 -3.79150E-02 H(18th)/C11 -3.34663E+00 -9.95599E-02 1.25180E-02 J(20th)/C12 1.77177E+00 3.68756E-02 -2.92833E-03 K(22nd)/C13 -6.73079E-01 -9.65743E-03 4.80979E-04 L(24th)/C14 1.79197E-01 1.74956E-03 -5.41851E-05 M(26th)/C15 -3.17751E-02 -2.08679E-04 3.98548E-06 N(28th)/C16 3.37202E-03 1.47448E-05 -1.72373E-07 O(30th)/C17 -1.62010E-04 -4.67526E-07 3.32477E-09

lens surface
(Surf) 13_ASP 14_ASP 15_ASP Radius -3.62277E+00 -1.63677E+02 1.86248E+00 K(Conic) -1.86555E+00 1.89124E+03 -8.68703E+00 A(4th)/C4 7.52955E-02 -1.30127E-01 -7.16804E-02 B(6th)/C5 -3.39670E-02 8.70387E-02 3.89116E-02 C(8th)/C6 1.57880E-02 -4.11194E-02 -1.66936E-02 D(10th)/C7 -1.51802E-02 4.31916E-03 4.35489E-03 E(12th)/C8 1.06511E-02 5.93781E-03 -5.75955E-04 F(14th)/C9 -4.22388E-03 -3.45133E-03 -2.26778E-06 G(16th)/C10 9.48157E-04 9.57870E-04 1.42798E-05 H(18th)/C11 -1.01521E-04 -1.65190E-04 -2.48125E-06 J(20th)/C12 -3.62719E-06 1.90847E-05 2.09509E-07 K(22nd)/C13 2.79328E-06 -1.51066E-06 -8.27324E-09 L(24th)/C14 -4.10383E-07 8.12152E-08 -3.65093E-11 M(26th)/C15 3.10065E-08 -2.84329E-09 1.78828E-11 N(28th)/C16 -1.23716E-09 5.85879E-11 -6.88474E-13 O(30th)/C17 2.06573E-11 -5.39835E-13 8.99540E-15

FIG. 13 is a diagram illustrating a lens assembly 600 according to an embodiment of the present disclosure. FIG. 14 is a graph showing spherical aberration of the lens assembly 600 of FIG. 13 according to an embodiment of the present disclosure. FIG. 15 is a graph showing astigmatism of the lens assembly 600 of FIG. 13 according to an embodiment of the present disclosure. FIG. 16 is a graph showing the distortion rate of the lens assembly 600 of FIG. 13 according to an embodiment of the present disclosure.

Lens assembly 600 of FIG. 13 may have a focal length of approximately 5.20 mm, an F-number of approximately 1.58, and/or an angle of view of approximately 83 degrees. In one embodiment, the lens assembly 600 has the shape and refractive power of the above-described lenses (L1, L2, L3, L4, L5, L6, L7) (e.g., lens surface)(s), and/or [Equation] The conditions presented can be satisfied at least in part, and can be manufactured with the specifications shown in [Table 11] below, and the aspherical coefficients in [Table 12], [Table 13], [Table 14], and [Table 15] You can have it.

lens surface
(Surf) radius of curvature
(radius) thickness
(Thick) refractive index
(nd) Abesu
(vd) obj infinity 1000 One infinity 0.3 2 2.219 0.845 1.54401 55.91 3 15.152 0.02 4 4.171 0.26 1.67073 19.23 5 2.487 0.215 sto 6.269 0.38 1.54401 55.91 7 13.319 0.405 8 -23.095 0.281 1.67073 19.23 9 23.784 0.2 10 3.72 0.322 1.63914 23.51 11 4.504 0.526 12 7.811 0.873 1.54401 55.91 13 -3.65 0.44 14 -1351.7 0.401 1.54401 55.91 15 1.862 0.187 16 infinity 0.11 1.5168 64.2 17 infinity 0.755 img infinity 0.03

lens surface
(Surf) 2_ASP 3_ASP 4_ASP 5_ASP Radius 2.21903E+00 1.51518E+01 4.17147E+00 2.48713E+00 K(Conic) -1.46376E+00 0.00000E+00 0.00000E+00 -8.82392E-02 A(4th)/C4 1.46030E-03 2.67573E-02 -1.09665E-02 -3.78972E-02 B(6th)/C5 1.13102E-01 -5.60130E-02 -2.58295E-02 3.54427E-02 C(8th)/C6 -5.06907E-01 7.39038E-02 2.56661E-02 1.23114E-01 D(10th)/C7 1.44888E+00 -6.42966E-02 -1.01563E-02 -1.80767E+00 E(12th)/C8 -2.78067E+00 3.67389E-02 1.60469E-03 8.10812E+00 F(14th)/C9 3.72312E+00 -1.34110E-02 0.00000E+00 -2.07908E+01 G(16th)/C10 -3.56472E+00 2.87254E-03 0.00000E+00 3.47317E+01 H(18th)/C11 2.47198E+00 -3.07268E-04 0.00000E+00 -3.97648E+01 J(20th)/C12 -1.24364E+00 1.06283E-05 0.00000E+00 3.18148E+01 K(22nd)/C13 4.49214E-01 0.00000E+00 0.00000E+00 -1.77728E+01 L(24th)/C14 -1.13467E-01 0.00000E+00 0.00000E+00 6.78933E+00 M(26th)/C15 1.90158E-02 0.00000E+00 0.00000E+00 -1.68811E+00 N(28th)/C16 -1.89855E-03 0.00000E+00 0.00000E+00 2.45701E-01 O(30th)/C17 8.54323E-05 0.00000E+00 0.00000E+00 -1.58419E-02

lens surface
(Surf) 6_ASP 7_ASP 8_ASP 9_ASP Radius 6.26860E+00 1.33190E+01 -2.30955E+01 2.37841E+01 K(Conic) 6.50801E+00 -1.00000E+00 0.00000E+00 0.00000E+00 A(4th)/C4 3.09653E-03 -1.80650E-02 -7.38458E-02 -1.19727E-01 B(6th)/C5 1.91716E-02 2.52821E-01 1.09871E-01 1.89457E-01 C(8th)/C6 -4.84581E-02 -1.68303E+00 -3.49911E-01 -5.02202E-01 D(10th)/C7 6.21605E-02 6.76410E+00 7.56662E-01 1.22333E+00 E(12th)/C8 -4.36691E-02 -1.71528E+01 -1.21107E+00 -2.34570E+00 F(14th)/C9 1.80536E-02 2.78630E+01 1.35531E+00 3.18647E+00 G(16th)/C10 -3.09338E-03 -2.74339E+01 -1.01062E+00 -2.99034E+00 H(18th)/C11 0.00000E+00 1.14919E+01 4.73448E-01 1.91881E+00 J(20th)/C12 0.00000E+00 7.95410E+00 -1.25053E-01 -8.23675E-01 K(22nd)/C13 0.00000E+00 -1.59245E+01 1.40964E-02 2.25303E-01 L(24th)/C14 0.00000E+00 1.17052E+01 0.00000E+00 -3.53402E-02 M(26th)/C15 0.00000E+00 -4.78108E+00 0.00000E+00 2.40643E-03 N(28th)/C16 0.00000E+00 1.07149E+00 0.00000E+00 0.00000E+00 O(30th)/C17 0.00000E+00 -1.03340E-01 0.00000E+00 0.00000E+00

lens surface
(Surf) 10_ASP 11_ASP 12_ASP Radius 3.71987E+00 4.50426E+00 7.81085E+00 K(Conic) -2.72447E+01 -2.98558E+01 5.45768E+00 A(4th)/C4 -1.00440E-01 -6.79560E-02 -8.14734E-03 B(6th)/C5 2.27788E-01 4.55722E-02 1.51173E-02 C(8th)/C6 -7.58322E-01 -5.93732E-02 -6.84218E-02 D(10th)/C7 2.05144E+00 9.70805E-02 1.01445E-01 E(12th)/C8 -3.94144E+00 -1.06764E-01 -9.32689E-02 F(14th)/C9 5.38562E+00 7.43965E-02 5.88469E-02 G(16th)/C10 -5.32216E+00 -3.46338E-02 -2.62969E-02 H(18th)/C11 3.82992E+00 1.12303E-02 8.39106E-03 J(20th)/C12 -2.00030E+00 -2.58899E-03 -1.90765E-03 K(22nd)/C13 7.47645E-01 4.24229E-04 3.05591E-04 L(24th)/C14 -1.94293E-01 -4.83132E-05 -3.36496E-05 M(26th)/C15 3.32520E-02 3.62966E-06 2.42270E-06 N(28th)/C16 -3.36109E-03 -1.61344E-07 -1.02686E-07 O(30th)/C17 1.51660E-04 3.20593E-09 1.94313E-09

lens surface
(Surf) 13_ASP 14_ASP 15_ASP Radius -3.64972E+00 -1.35170E+03 1.86174E+00 K(Conic) -1.27843E+00 1.12616E+05 -9.67776E+00 A(4th)/C4 5.85651E-02 -1.49652E-01 -6.59532E-02 B(6th)/C5 -1.54965E-02 1.22824E-01 3.67263E-02 C(8th)/C6 -4.51507E-03 -8.88141E-02 -1.86488E-02 D(10th)/C7 -5.99618E-04 4.37809E-02 6.88160E-03 E(12th)/C8 5.39877E-03 -1.39624E-02 -1.77053E-03 F(14th)/C9 -3.97070E-03 2.99249E-03 3.19360E-04 G(16th)/C10 1.52503E-03 -4.47665E-04 -4.08330E-05 H(18th)/C11 -3.71411E-04 4.78588E-05 3.72380E-06 J(20th)/C12 6.10042E-05 -3.68928E-06 -2.41913E-07 K(22nd)/C13 -6.86246E-06 2.03884E-07 1.10720E-08 L(24th)/C14 5.21677E-07 -7.88957E-09 -3.47945E-10 M(26th)/C15 -2.56192E-08 2.03151E-10 7.13166E-12 N(28th)/C16 7.33418E-10 -3.12789E-12 -8.57109E-14 O(30th)/C17 -9.29259E-12 2.17900E-14 4.57407E-16

According to one embodiment, with respect to the conditions presented through [Equation 1-6], the values calculated by the lens data of the lens assemblies 400, 500, and 600 of FIGS. 5, 9, and 13 are as follows [ It is illustrated in Table 16].

Example 1 Example 2 Example 3 Equation 1 1.12 1.11 1.11 Equation 2 1.58 1.59 1.59 Equation 3 0.65 0.65 0.65 Equation 4 0.278 0.258 0.259 Equation 5 -18.99 -20.29 -17.39 Equation 6 19.23 19.23 19.23

As discussed above, the lens assembly (e.g., the lens assemblies 400, 500, and 600 of FIGS. 5, 9, and/or 13) according to the embodiment(s) of the present disclosure has an F number of approximately 1.5. It can be easily miniaturized with a slim factor of approximately 0.68 or less, and can be easily manufactured in terms of the material or shape of the lenses. In one embodiment, the lens assemblies 400, 500, and 600 can easily control aberrations and secure the amount of ambient light while being miniaturized, thereby providing optical performance suitable for a high-pixel sensor with an image height of approximately 4.8 mm or more. In one embodiment, by securing an appropriate gap in the arrangement of the lenses, the edge or side of the lens is in contact with or supported by the barrel structure even without placing a separate structure (e.g., a spacer) between the lenses. Assembly may be possible. For example, flare phenomenon caused by a separate structure (e.g. spacer) can be suppressed and can contribute to reducing manufacturing costs (e.g. material costs).

The effects that can be obtained from the present disclosure are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description below. will be.

As described above, according to an embodiment of the present disclosure, a lens assembly (e.g., the lens assemblies 400, 500, and 600 of FIGS. 5, 9, and/or 13) includes an image sensor (e.g., FIGS. 2 and 600). 5, the image sensor (I, 230) of FIGS. 9 and/or 13), and sequentially along an optical axis (e.g., the optical axis (O) of FIGS. 5, 9, and/or 13) in a direction toward the image sensor. 7 lenses (e.g., lenses (L1, L2, L3, L4, L5, L6, L7) of FIGS. 5, 9, and/or 13) arranged in a first lens having positive refractive power. A lens (e.g., the first lens L1 in FIGS. 5, 9 and/or 13), a second lens with negative power (e.g., the second lens (L1) in FIGS. 5, 9 and/or 13) lens (L2)), a third lens with positive refractive power (e.g., third lens (L3) in FIGS. 5, 9 and/or 13), a fourth lens with negative refractive power (e.g., FIGS. 5, 9 and/or the fourth lens (L4) in FIG. 13), a fifth lens with positive refractive power (e.g., the fifth lens (L5) in FIGS. 5, 9, and/or FIG. 13), and a sixth lens with positive refractive power. (e.g., the sixth lens (L6) in FIGS. 5, 9, and/or FIG. 13), and a seventh lens with negative refractive power (e.g., the seventh lens (L7) in FIG. 5, FIG. 9, and/or FIG. 13 ) may include. In one embodiment, the lens assembly may satisfy the following [Conditional Equation 1-3].

[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

Here, '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, and 'TTL' is the object of the first lens. 'ImgH' is the distance from the side surface (e.g., the side indicated as 'S1' in FIG. 5) to the image sensor, and 'ImgH' is the imaging surface of the image sensor from the optical axis (e.g., FIG. 5, FIG. 9, and/or FIG. 13 may be the maximum distance to the edge of the image plane (img).

According to one embodiment, the lens assembly as described above may further include an aperture disposed between the first lens and the seventh lens (e.g., the object-side surface (S5) of the third lens (L3) in FIG. 5). You can. In one embodiment, the lens assembly may satisfy the following [Conditional Equation 4].

[Conditional expression 4]

0.1 =< T1/TA =< 0.3

Here, 'T1' is the distance from the object-side surface of the first lens to the aperture, and 'TA' is the distance from the object-side surface of the first lens to the sensor-side surface of the seventh lens (e.g., 'in FIG. 5). It may be the distance to the side indicated as S15').

According to one embodiment, the above lens assembly may satisfy the following [Conditional Equation 5].

[Conditional expression 5]

-50 =< f23 < 0

Here, 'f23' may be the focal length of the second lens and the third lens combination.

According to one embodiment, the fifth lens includes a convex object side surface (e.g., the surface indicated as 'S10' in FIG. 5) and a concave sensor side surface (e.g., the surface indicated as 'S11' in FIG. 5). And, at least one of the object-side surface and the sensor-side surface of the fifth lens may include an inflection point.

According to one embodiment, the first lens, the second lens, and the third lens may be meniscus lenses including a convex object-side surface and a concave sensor-side surface. In one embodiment, the lens assembly may satisfy the following [Conditional Equation 6].

[Conditional expression 6]

17 =< vd-min =< 25

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

According to one 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.

According to one embodiment, the fourth lens includes a concave object-side surface (e.g., the surface indicated as 'S8' in FIG. 5) and a convex sensor-side surface (e.g., the surface indicated as 'S9' in FIG. 5). It may be a meniscus lens.

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

According to one embodiment, the sixth lens may include a convex object-side surface.

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

According to an embodiment of the present disclosure, an electronic device (e.g., the electronic devices 101, 102, 104, and 300 of FIGS. 1 to 4) includes a lens assembly (e.g., the electronic device 101, 102, 104, and 300 of FIGS. 5, 9, and/or 13). It may include a lens assembly (400, 500, 600), and a processor (e.g., the processor 120 of FIG. 1 or the image signal processor 260 of FIG. 2) configured to acquire an image of a subject using the lens assembly. there is. In one embodiment, the lens assembly includes an image sensor (e.g., image sensor (I, 230) of FIGS. 2, 5, 9, and/or 13), and an optical axis (e.g., image sensor I, 230) in a direction toward the image sensor. Seven lenses (e.g., lenses (L1, L2, L3, L4, L5, L6, L7)), a first lens with positive power (e.g., the first lens (L1) in FIGS. 5, 9, and/or 13), and a first lens with negative power. A second lens (e.g., the second lens (L2) in Figures 5, 9 and/or 13), a third lens with positive refractive power (e.g., the third lens (L2) in Figures 5, 9 and/or 13 L3)), a fourth lens with negative refractive power (e.g., the fourth lens (L4) in Figures 5, 9 and/or 13), a fifth lens with positive refractive power (e.g., in Figures 5, 9 and/or or the fifth lens (L5) in FIG. 13), the sixth lens (e.g., the sixth lens (L6) in FIGS. 5, 9, and/or FIG. 13) with positive refractive power, and the seventh lens with negative refractive power ( Example: may include the seventh lens (L7) of FIGS. 5, 9, and/or 13). In one embodiment, the lens assembly may satisfy the following [Conditional Expression 7-9].

[Conditional expression 7]

1 =< efl/f1 =< 2

[Conditional expression 8]

1.3 =< Fno =< 1.7

[Conditional expression 9]

0.59 =< TTL/(ImgH*2) =< 0.68

Here, '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, and 'TTL' is the object of the first lens. 'ImgH' is the distance from the side surface (e.g., the side indicated as 'S1' in FIG. 5) to the image sensor, and 'ImgH' is the imaging surface of the image sensor from the optical axis (e.g., FIG. 5, FIG. 9, and/or FIG. 13 may be the maximum distance to the edge of the image plane (img).

According to one embodiment, the lens assembly may further include an aperture disposed between the first lens and the seventh lens (e.g., the object-side surface (S5) of the third lens (L3) in FIG. 5). there is. In one embodiment, the lens assembly may satisfy the following [Conditional Equation 10].

[Conditional expression 10]

0.1 =< T1/TA =< 0.3

Here, 'T1' is the distance from the object-side surface of the first lens to the aperture, and 'TA' is the distance from the object-side surface of the first lens to the sensor-side surface of the seventh lens (e.g., 'in FIG. 5). It may be the distance to the side indicated as S15').

According to one embodiment, the lens assembly may satisfy the following [Conditional Equation 11].

[Conditional expression 11]

-50 =< f23 < 0

Here, 'f23' may be the focal length of the second lens and the third lens combination.

According to one embodiment, the fifth lens includes a convex object side surface (e.g., the surface indicated as 'S10' in FIG. 5) and a concave sensor side surface (e.g., the surface indicated as 'S11' in FIG. 5). And, at least one of the object-side surface and the sensor-side surface of the fifth lens may include an inflection point.

According to one embodiment, the first lens, the second lens, and the third lens may be meniscus lenses including a convex object-side surface and a concave sensor-side surface. In one embodiment, the lens assembly may satisfy the following [Conditional Equation 12].

[Conditional expression 12]

17 =< vd-min =< 25

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

According to one 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.

According to one embodiment, the fourth lens includes a concave object-side surface (e.g., the surface indicated as 'S8' in FIG. 5) and a convex sensor-side surface (e.g., the surface indicated as 'S9' in FIG. 5). It may be a meniscus lens.

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

According to one embodiment, the sixth lens may include a convex object-side surface.

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

Although the present disclosure has been described by way of example with respect to one embodiment, it should be understood that the one embodiment is for illustrative purposes rather than limiting the present invention. It will be apparent to those skilled in the art that various changes may be made in the format and detailed structure of the present disclosure, including the appended claims and their equivalents, without departing from the overall scope of the present disclosure.

101, 102, 104, 300: Electronic device 120: Processor
180, 280, 305, 312, 313: Camera module
210, 400, 500, 600: Lens assembly
L1, L2, L3, L4, L5, L6, L7: Lens(s)
230, I: image sensor 260: image signal processor
F: Infrared blocking filter

Claims (20)

In the lens assembly (400; 500; 600),
Image sensor (I); and
Seven lenses (L1, L2, L3, L4, L5, L6, L7) arranged sequentially along the optical axis (O) in the direction toward the image sensor, a first lens ( L1), a second lens (L2) with negative refractive power, a third lens (L3) with positive refractive power, a fourth lens (L4) with negative refractive power, and 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,
A lens assembly that satisfies the following [Conditional Expression 1-3].
[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
Here, '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, and 'TTL' is the object of the first lens. It is the distance from the side 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.
According to claim 1,
Further comprising an aperture disposed between the first lens and the seventh lens,
A lens assembly that satisfies the following [Conditional Equation 4].
[Conditional expression 4]
0.1 =< T1/TA =< 0.3
Here, 'T1' is the distance from the object-side surface of the first lens to the aperture, and 'TA' is the distance from the object-side surface of the first lens to the sensor-side surface of the seventh lens.
The lens assembly according to any one of claims 1 to 2, which satisfies the following [Conditional Expression 5].
[Conditional expression 5]
-50 =< f23 < 0
Here, 'f23' is the focal length of the second lens and the third lens combination.
The method 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 and the sensor-side surface of the fifth lens has an inflection point. Includes a lens assembly.
The method according to any one of claims 1 to 4, wherein the first lens, the second lens, and the third lens are meniscus lenses including a convex object-side surface and a concave sensor-side surface, and the following [ A lens assembly that satisfies [Conditional Equation 6].
[Conditional expression 6]
17 =< vd-min =< 25
Here, 'vd-min' is the minimum Abbe number among the Abbe numbers of the lenses.
The lens assembly of 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.
The lens assembly according to any one of claims 1 to 6, wherein the fourth lens is a meniscus lens including a concave object-side surface and a convex sensor-side surface.
The method according to any one of claims 1 to 7, wherein at least one of the object-side surface and the sensor-side surface of the fourth lens, at least one of the object-side surface and the sensor-side surface of the fifth lens, and the sixth lens At least one of the object-side surface and the sensor-side surface of the seventh lens, and at least one of the object-side surface and the sensor-side surface of the seventh lens each include an inflection point.
The lens assembly of any one of claims 1 to 8, wherein the sixth lens includes a convex object-side surface.
The method according to any one of claims 1 to 9, wherein the object-side surface of the seventh lens is concave in a paraxial region through which the optical axis passes and convex in a peripheral region around the paraxial region,
The sensor side of the seventh lens is concave in the paraxial region and convex in the peripheral region,
A lens assembly wherein the peripheral area is inclined toward the sixth lens.
In the electronic device (101; 102; 104; 300),
lens assembly (400; 500; 600); and
It includes a processor (120; 260) configured to acquire an image of a subject using the lens assembly,
The lens assembly is,
Image sensor (I; 230); and
Seven lenses (L1, L2, L3, L4, L5, L6, L7) arranged sequentially along the optical axis in the direction facing the image sensor, including a first lens (L1) with positive power, Second lens (L2) with negative refractive power, third lens (L3) with positive refractive power, fourth lens (L4) with negative refractive power, fifth lens (L5) with positive refractive power, positive refractive power It includes a sixth lens (L6) having a , and a seventh lens (L7) having a negative refractive power,
An electronic device in which the lens assembly satisfies the following [Conditional Expression 7-9].
[Conditional expression 7]
1 =< efl/f1 =< 2
[Conditional expression 8]
1.3 =< Fno =< 1.7
[Conditional expression 9]
0.59 =< TTL/(ImgH*2) =< 0.68
Here, '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, and 'TTL' is the object of the first lens. It is the distance from the side 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.
12. The lens assembly of claim 11, wherein the lens assembly further includes an aperture disposed between the first lens and the seventh lens,
An electronic device in which the lens assembly satisfies the following [Conditional Equation 10].
[Conditional expression 10]
0.1 =< T1/TA =< 0.3
Here, 'T1' is the distance from the object-side surface of the first lens to the aperture, and 'TA' is the distance from the object-side surface of the first lens to the sensor-side surface of the seventh lens.
The electronic device according to any one of claims 11 to 12, wherein the lens assembly satisfies the following [Conditional Expression 11].
[Conditional expression 11]
-50 =< f23 < 0
Here, 'f23' is the focal length of the second lens and the third lens combination.
The method according to any one of claims 11 to 13, 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 and the sensor-side surface of the fifth lens has an inflection point. Including electronic devices.
The method according to any one of claims 11 to 14, wherein the first lens, the second lens, and the third lens are meniscus lenses including a convex object-side surface and a concave sensor-side surface,
An electronic device in which the lens assembly satisfies the following [Conditional Equation 12].
[Conditional expression 12]
17 =< vd-min =< 25
Here, 'vd-min' is the minimum Abbe number among the Abbe numbers of the lenses.
The electronic device according to any one of claims 11 to 15, 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.
The electronic device according to any one of claims 11 to 16, wherein the fourth lens is a meniscus lens including a concave object-side surface and a convex sensor-side surface.
The method according to any one of claims 11 to 17, wherein at least one of the object-side surface and the sensor-side surface of the fourth lens, at least one of the object-side surface and the sensor-side surface of the fifth lens, and the sixth lens At least one of the object-side surface and the sensor-side surface of and at least one of the object-side surface and the sensor-side surface of the seventh lens each include an inflection point.
The electronic device according to any one of claims 11 to 18, wherein the sixth lens includes a convex object-side surface.
The method according to any one of claims 11 to 19, wherein the object-side surface of the seventh lens is concave in a paraxial region through which the optical axis passes and convex in a peripheral region around the paraxial region,
The sensor side of the seventh lens is concave in the paraxial region and convex in the peripheral region,
The peripheral area is inclined to face the sixth lens.

Images