KR20230109524A - Lens assembly and electronic device including the same - Google Patents

Abstract

], [조건식2;

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이외에도 다양한 실시예가 가능하다. According to various embodiments of the present disclosure, a lens assembly and/or an electronic device including the same includes at least seven lenses sequentially arranged along an optical axis from an object side to an image sensor side, and among the at least seven lenses A first lens disposed first from the object side has a positive refractive power and includes a convex object-side surface, and a second lens disposed second from the object side among the at least seven lenses has negative refractive power. power) and includes a convex object-side surface, wherein a third lens disposed third from the object side among the at least seven lenses includes a convex object-side surface with positive refractive power, and among the at least seven lenses A fourth lens disposed fourth from the object side has a negative refractive power and includes a concave object side surface, and the Abbe number 'Vd1' of the first lens, the focal length of the second lens from the image sensor side 'f(L-1)'', and the focal distance 'f(L)' of the first lens from the image sensor side [Conditional Expressions 1 and 2] below may be satisfied.
[conditional expression 1;

], [conditional expression 2;

]
In addition, various embodiments are possible.

Description

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

Various embodiments 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 lens assembly.

Optical devices, for example, cameras capable of capturing images or moving pictures have been widely used, and recently digital cameras with solid-state image sensors such as CCD (Charge Coupled Device) or CMOS (Complementary Metal-Oxide Semiconductor) B. Video cameras have become common. An optical device employing a solid-state image sensor (CCD or CMOS) is gradually replacing the film-type optical device because it is easier to store, reproduce, and move images than a film-type optical device.

Recently, a plurality of optical devices, for example, two or more selected from among a close-up camera, a telephoto camera, and/or a wide-angle camera are mounted in one electronic device to improve the quality of captured images, and also to provide various visual effects to the captured images. have been able to grant For example, a high-quality photographed image may be obtained by acquiring subject images through a plurality of cameras having different optical characteristics and combining them. As multiple optical devices (e.g., cameras) are installed to acquire high-quality captured images, electronic devices such as mobile communication terminals and smart phones are gradually replacing electronic devices specialized in shooting functions such as digital compact cameras. It is expected to be able to replace high-performance cameras such as single-lens reflex digital cameras.

The foregoing information may be provided as background technology for the purpose of assisting in the understanding of the present disclosure. No claim or determination is made as to whether any of the foregoing may be applied as prior art in connection with the present disclosure.

In a high-performance camera such as a single lens reflex camera, a large image sensor ranging from about 1/1.2 inch to 1 inch may be used, and the performance of the camera or the quality of a captured image may be improved in proportion to the size of the image sensor. In such a high-performance camera, deterioration in image quality can be prevented by including a lens assembly corresponding to the size and performance of an image sensor. For example, in order to improve field curvature or control aberrations while meeting the design performance of an enlarged image sensor, the lens(s) constituting the lens assembly may be enlarged or the number of lenses may be increased. However, since the number or size of lenses in an optical system may be limited in a miniaturized electronic device such as a smart phone, it may be difficult to secure a lens assembly that meets the performance of a large image sensor. Moreover, in the case of having a limited number of lenses (eg, approximately 7 lenses), miniaturization of the lens assembly may be easy, but it is difficult to secure optical performance such as brightness (eg, F-number), image stabilization performance, field curvature or aberration control. It can be difficult.

Various embodiments of the present disclosure are intended to at least solve the above-described problems and / or disadvantages and provide at least the following advantages, and can provide a lens assembly having good brightness and / or an electronic device including the same while being miniaturized. there is.

Various embodiments of the present disclosure may provide a lens assembly having an improved image stabilization function and/or an electronic device including the same.

Additional aspects according to various embodiments will be presented through the detailed description that follows, and may be apparent in part from the description or understood through examples of a presented implementation.

According to various embodiments of the present disclosure, a lens assembly and/or an electronic device including the same includes at least seven lenses sequentially arranged along an optical axis from an object side to an image sensor side, and among the at least seven lenses A first lens disposed first from the object side has a positive refractive power and includes a convex object-side surface, and a second lens disposed second from the object side among the at least seven lenses has negative refractive power. power) and includes a convex object-side surface, wherein a third lens disposed third from the object side among the at least seven lenses includes a convex object-side surface with positive refractive power, and among the at least seven lenses The fourth lens disposed fourth from the object side may have a negative refractive power, include a concave object side surface, and satisfy [Conditional Expressions 1 and 2] below.

[conditional expression 1]

[conditional expression 2]

Here, 'Vd1' is the Abbe number of the first lens, 'f(L-1)' is the focal length of the second lens from the image sensor side, and 'f(L)' is the focal length of the first lens from the image sensor side. may be the distance.

According to various embodiments of the present disclosure, an electronic device includes at least seven lenses sequentially arranged along an optical axis direction from an object side to an image sensor side, and aligned with the at least seven lenses on the optical axis to display the at least seven lenses. An image sensor configured to receive light focused or guided by a lens, and a processor configured to acquire an image based on the light received by the image sensor, wherein a first of the at least seven lenses is disposed from the object side. 1 lens has a positive refractive power and includes a convex object-side surface, and among the at least 7 lenses, a second lens arranged second from the object side has a convex object with negative refractive power A third lens disposed third from the object side among the at least seven lenses has a positive refractive power and includes a convex object-side surface, and the third lens disposed fourth from the object side among the at least seven lenses 4 The lens may have a negative refractive power and include a concave object-side surface, and may satisfy the following [Conditional Expressions 9 and 10].

[conditional expression 9]

[conditional expression 10]

Here, 'Vd1' is the Abbe number of the first lens, 'f(L-1)' is the focal length of the second lens from the image sensor side, and 'f(L)' is the focal length of the first lens from the image sensor side. may be the distance.

According to various embodiments of the present disclosure, the lens assembly may provide good optical performance even if the lens(s) is miniaturized by securing a sufficient distance between the lens(s) and the image sensor. For example, it can provide excellent optical performance while being easily mounted on a miniaturized electronic device such as a smart phone. In various embodiments, the first lens on the object side of the lens assembly and/or the electronic device may be made of a glass material having a high dispersion coefficient, thereby reducing the overall length of the lens assembly or improving brightness performance when having the same overall length. In various embodiments, by controlling the refractive power of the first lens and the second lens on the image sensor side in the lens assembly and/or electronic device, good relative illumination can be achieved even at a point of about 1.065 times in the radial direction in the diagonal effective mirror area of the image plane. can be secured For example, optical performance of a lens assembly and/or an electronic device may be improved by extending an operating range for an image stabilization operation. In addition, various effects identified directly or indirectly through this document may be provided.

The above-described or other aspects, configurations and/or advantages of various embodiments of the present disclosure may become more apparent from the following detailed description with reference to the accompanying drawings.
1 is a block diagram illustrating an electronic device in a network environment according to various embodiments of the present disclosure.
2 is a block diagram illustrating a camera module, in accordance with various embodiments.
3 is a perspective view illustrating a front surface of an electronic device according to various embodiments.
FIG. 4 is a perspective view illustrating a rear side of the electronic device shown in FIG. 3 .
5 is a configuration diagram illustrating a lens assembly according to various embodiments of the present disclosure.
FIG. 6 is a diagram illustrating an imaging plane of an image sensor in the lens assembly of FIG. 5 .
7 is a configuration diagram illustrating a lens assembly according to various embodiments of the present disclosure.
8 is a graph showing spherical aberration, astigmatism, and distortion of a lens assembly according to various embodiments of the present disclosure.
9 is a graph showing relative illumination of lens assemblies according to various embodiments of the present disclosure.
10 is a configuration diagram illustrating a lens assembly according to various embodiments of the present disclosure.
11 is a graph showing spherical aberration, astigmatism, and distortion of a lens assembly according to various embodiments of the present disclosure.
12 is a graph showing relative illumination of lens assemblies according to various embodiments of the present disclosure.
13 is a configuration diagram illustrating a lens assembly according to various embodiments of the present disclosure.
14 is a graph showing spherical aberration, astigmatism, and distortion of a lens assembly according to various embodiments of the present disclosure.
15 is a graph showing relative illumination of lens assemblies according to various embodiments of the present disclosure.
16 is a configuration diagram illustrating a lens assembly according to various embodiments of the present disclosure.
17 is a graph showing spherical aberration, astigmatism, and distortion of a lens assembly according to various embodiments of the present disclosure.
18 is a graph showing relative illumination of lens assemblies according to various embodiments of the present disclosure.
19 is a configuration diagram illustrating a lens assembly according to various embodiments of the present disclosure.
20 is a graph showing spherical aberration, astigmatism, and distortion of a lens assembly according to various embodiments of the present disclosure.
21 is a graph showing relative illumination of lens assemblies according to various embodiments of the present disclosure.
Throughout the accompanying drawings, like reference numbers may be assigned to like parts, components and/or structures.

The following description of the accompanying drawings may provide an understanding of various illustrative implementations of the present disclosure, including the claims and equivalents thereto. Although the exemplary embodiments disclosed in the following description contain various specific details to aid understanding, it is considered to be one of various exemplary embodiments. Accordingly, it is obvious to those skilled in the art that various changes and modifications of various implementations described in this document can be made without departing from the scope and spirit of the disclosure. Also, descriptions of well-known functions and configurations may be omitted for clarity and conciseness.

The terms and words used in the following description and claims are not limited to their referenced meanings and may be used to clearly and consistently describe various embodiments of the present disclosure. Accordingly, it will be apparent to those skilled in the art that the following descriptions of various implementations of the disclosures are provided for purposes of explanation and not for limiting the scope of rights and the disclosures to be equated thereto.

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

1 is a block diagram of an electronic device 101 within a network environment 100, according to various embodiments. Referring to FIG. 1 , in a network environment 100, an electronic device 101 communicates with an electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or through a second network 199. It may communicate with at least one of the electronic device 104 or the server 108 through (eg, 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 an 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, 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 the antenna module 197 may be included. In some embodiments, in the electronic device 101, at least one of these components (eg, the connection terminal 178) may be omitted or one or more other components may be added. In some embodiments, some of these components (eg, sensor module 176, camera module 180, or antenna module 197) are integrated into a single component (eg, display module 160). It can be.

The processor 120, for example, executes software (eg, the program 140) to cause at least one other component (eg, hardware or software component) of the electronic device 101 connected to the processor 120. It can control and perform various data processing or calculations. According to one embodiment, as at least part of data processing or operation, the processor 120 transfers instructions or data received from other components (e.g., sensor module 176 or communication module 190) to volatile memory 132. , processing commands or data stored in the volatile memory 132 , and storing resultant data in the non-volatile memory 134 . According to one embodiment, the processor 120 may include a main processor 121 (eg, a central processing unit or an application processor), or a secondary processor 123 (eg, a graphics processing unit, a neural network processing unit) that may operate independently of or together with the main processor 121 . (NPU; neural processing unit), image signal processor, sensor hub processor, or communication processor). For example, when the electronic device 101 includes the main processor 121 and the auxiliary processor 123, the auxiliary processor 123 may use less power than the main processor 121 or be set to be specialized for a designated function. can The secondary processor 123 may be implemented separately from or as part of the main processor 121 .

The secondary processor 123 may, for example, take the place of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 is active (eg, running an application). ) state, together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display module 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states. According to one embodiment, the auxiliary processor 123 (eg, image signal processor or communication processor) may be implemented as part of other functionally related components (eg, camera module 180 or communication module 190). there is. According to an embodiment, the auxiliary processor 123 (eg, a neural network processing device) may include a hardware structure specialized for processing an artificial intelligence model. AI models can be created through machine learning. Such learning may be performed, for example, in the electronic device 101 itself where the artificial intelligence model is performed, or may be performed through a separate server (eg, the server 108). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning or reinforcement learning, but in the above example Not limited. The artificial intelligence model may include a plurality of artificial neural network layers. Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the foregoing, but is not limited to the foregoing examples. The artificial intelligence model may include, in addition or alternatively, software structures in addition to hardware 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 . The data may include, for example, input data or output data for software (eg, program 140) and commands related thereto. The 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 an application 146 .

The input module 150 may receive a command or data to be used by a component (eg, the processor 120) of the electronic device 101 from the outside of the electronic device 101 (eg, a user). The input module 150 may include, for example, a microphone, a mouse, a keyboard, a key (eg, a button), or a digital pen (eg, a stylus pen).

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

The display module 160 may 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 set to detect a touch or a pressure sensor set to measure the intensity of force generated by the touch.

The audio module 170 may convert sound into an electrical signal or vice versa. 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 connected directly or wirelessly to the electronic device 101 (eg : Sound may be output through the electronic device 102 (eg, a speaker or a headphone).

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, a 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 may include, 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 bio sensor, It may include a temperature sensor, humidity sensor, or light sensor.

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

The connection terminal 178 may include a connector through which the electronic device 101 may 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 may convert electrical signals into mechanical stimuli (eg, vibration or motion) or electrical stimuli that a user may 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 may 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 may manage power supplied to the electronic device 101 . According to one embodiment, the power management module 188 may be implemented as at least part of a power management integrated circuit (PMIC), for example.

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 cell, a rechargeable secondary cell, or a fuel cell.

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

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

The antenna module 197 may transmit or receive signals or power to the outside (eg, an external electronic device). According to one embodiment, the antenna module may include an antenna including a radiator formed 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 a communication method used in a communication network such as the first network 198 or the second network 199 is selected from the plurality of antennas by the communication module 190, for example. can be chosen A signal or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna. According to some embodiments, other components (eg, a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module 197 in addition to the radiator.

According to various embodiments, the antenna module 197 may form a mmWave antenna module. According to one embodiment, the mmWave antenna module includes a printed circuit board, an RFIC disposed on or adjacent to a first surface (eg, a lower surface) of the printed circuit board and capable of supporting a designated high frequency band (eg, mmWave band); and a plurality of antennas (eg, array antennas) disposed on or adjacent to a second surface (eg, a top surface or a side surface) of the printed circuit board and capable of transmitting or receiving signals of 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 (eg, a 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 an 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 the same as or different from the electronic device 101 . According to an embodiment, all or part of operations executed in the electronic device 101 may be executed in one or more external devices among the external electronic devices 102 , 104 , and 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 instead of executing the function or service by itself. Alternatively or additionally, one or more external electronic devices may be requested to perform the function or at least part of the service. One or more external electronic devices receiving the request may execute at least a part of the requested function or service or an additional function or service related to the request, and deliver the execution result to the electronic device 101 . The electronic device 101 may provide the result as at least part of a response to the request as it is or additionally processed. To this end, for example, cloud computing, distributed computing, mobile edge computing (MEC) or client-server computing technology may be used. The electronic device 101 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing. In another 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 (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.

2 is a block diagram 200 illustrating a camera module 280 (eg, camera module 180 of FIG. 1 ), in accordance with various embodiments. 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 (eg, a buffer memory), or an image signal processor. (260). In some embodiments, lens assembly 210 may include image sensor 230 . The lens assembly 210 may collect light emitted from a subject that is an image capturing target. The lens assembly 210 may include one or more lenses. According to one embodiment, the camera module 280 may include a plurality of lens assemblies 210 . In this case, the camera module 280 may form, for example, a dual camera, a 360-degree camera, or a spherical camera. Some of the plurality of lens assemblies 210 may have the same lens properties (eg, angle of view, focal length, auto focus, F-number, or optical zoom), or at least one lens assembly may have different It may have one or more lens properties different from those 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, a red-green-blue (RGB) LED, a white LED, an infrared LED, or an 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, for example, an image sensor selected from among image sensors having different properties, such as an RGB sensor, a black and white (BW) sensor, an IR sensor, or a UV sensor, It may include a plurality of image sensors having a property, or a plurality of image sensors having other 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 movement of the camera module 280 or the electronic device 201 including the same, or Operation characteristics of the image sensor 230 may be controlled (eg, read-out timing is adjusted, etc.). This makes it possible to compensate at least part of the negative effect of the movement on the image being taken. According to an 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 control the camera module 280 or an electronic device (eg : It is possible to detect such a movement of the electronic device 101 of FIG. 1 . 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 an image acquired through the image sensor 230 for a next image processing task. For example, when image acquisition is delayed according to the shutter, or a plurality of images are acquired at high speed, the acquired original image (eg, a Bayer-patterned image or a high-resolution image) is stored in the memory 250 and , a copy image (eg, a low resolution image) corresponding thereto may be previewed through the display module 160 of FIG. 1 . Thereafter, when a specified condition is satisfied (eg, a user input or a system command), at least a part of the original image stored in the memory 250 may be obtained and processed by the image signal processor 260 , for example. According to one embodiment, the memory 250 may be configured as at least a part of a memory (eg, the memory 130 of FIG. 1 ) or as a separate memory operated independently of the memory 250 .

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, for example, depth map generation, 3D modeling, panorama generation, feature point extraction, image synthesis, or image compensation (eg, noise reduction, resolution adjustment, brightness adjustment, blurring ( 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 (eg, an image sensor). 230) may be controlled (eg, exposure time control, read-out timing control, etc.) The image processed by the image signal processor 260 is stored again in the memory 250 for further processing. or may be provided as an external component of the camera module 280 (eg, the memory 130 of FIG. 1, the display module 160, the electronic device 102, the electronic device 104, or the server 108) According to one embodiment, the image signal processor 260 may be configured as at least a part of a processor (eg, 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 by the processor 120 as it is or after additional image processing. It may be displayed via device 160 .

According to an embodiment, an electronic device (eg, the electronic device 101 of FIG. 1 ) may include a plurality of camera modules 280 each having 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 the other may be a telephoto camera. Similarly, at least one of the plurality of camera modules 280 may be a front camera and at least the other may be a rear camera.

Electronic devices according to various embodiments of the present disclosure may be devices of various types. The electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance. An electronic device according to an embodiment of the present document is not limited to the aforementioned devices.

Various embodiments of this document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, like reference numbers may be used for like or related elements. The singular form of a noun corresponding to an item may include one item or a plurality of items, unless the relevant context clearly dictates 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 the phrases such as "at least one of , B, or C" may include any one of the items listed together in that phrase, or all possible combinations thereof. Terms such as "first", "second", or "first" or "secondary" may simply be used to distinguish that component from other corresponding components, and may refer to that component in other respects (eg, importance or order) is not limited. A (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”. When mentioned, it means that the certain component may be connected to the other component directly (eg by wire), 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 interchangeably interchangeable with terms such as, for example, logic, logical blocks, parts, or circuits. can be used as A module may be an integrally constructed component or a minimal unit of components or a portion 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 this document are software (eg, a program) including one or more instructions stored in a storage medium (eg, internal memory or external memory) readable by a machine (eg, an electronic device). can be implemented as For example, a processor (eg, a processor) of a device (eg, an electronic device) may call at least one command among one or more instructions stored from a storage medium and execute it. This enables the device to be operated to perform at least one function according to the at least one command invoked. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-temporary' only means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and this term refers to the case where data is stored semi-permanently in the storage medium. It does not discriminate when it is temporarily stored.

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

According to various embodiments, each component (eg, module or program) of the above-described components may include a single object or a plurality of objects, and some of the plurality of objects may be separately disposed from other components. there is. According to various embodiments, one or more components or operations among the aforementioned corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of 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 of the plurality of components identically or similarly to those performed by a corresponding component of the plurality of components prior to the integration. . According to various embodiments, the actions performed by a module, program, or other component are executed sequentially, in parallel, iteratively, or heuristically, or one or more of the actions are executed in a different order, or omitted. or one or more other actions may be added.

FIG. 3 is a perspective view illustrating the front of an electronic device 300 (eg, the electronic device 101 of FIG. 1 ) according to various embodiments. FIG. 4 is a perspective view showing a rear side of the electronic device 300 shown in FIG. 3 .

Referring to FIGS. 3 and 4 , an electronic device 300 (eg, the electronic device 101 of FIG. 1 ) according to an embodiment has a first side (or front side) 310A, and a second side (or back side). ) 310B, and a side surface 310C surrounding a space between the first surface 310A and the second surface 310B. In another embodiment (not shown), the housing 310 may refer to a structure forming some of the first face 310A, the second face 310B, and the side face 310C of FIG. 3 . According to one embodiment, the first surface 310A may be formed by a front plate 302 that is at least partially transparent (eg, a glass plate or a polymer plate including various coating layers). In another embodiment, the front plate 302 may be coupled to the housing 310 to form an inner space together with the housing 310 . In various embodiments, the term 'inner space' may refer to an inner space of the housing 310 that accommodates at least a portion of the display 301 or the display device 160 of FIG. 1 to be described later.

According to various embodiments, the second surface 310B may be formed by the substantially opaque back plate 311 . The back plate 311 may be formed, for example, of coated or colored glass, ceramic, polymer, metal (eg, aluminum, stainless steel (STS), or magnesium), or a combination of at least two of the foregoing materials. It can be. The side surface 310C may be formed by a side bezel structure (or "side member") 318 coupled to the front plate 302 and the rear plate 311 and including metal and/or polymer. In various embodiments, the back plate 311 and the side bezel structure 318 may be integrally formed and include the same material (eg, a metal material such as aluminum).

In the illustrated embodiment, the front plate 302 curves from the first surface 310A toward the back plate 311 and seamlessly extends two first regions 310D, the front plate It can be included on both ends of the long edge of (302). In the illustrated embodiment (see FIG. 4 ), the rear plate 311 has two second regions 310E that are curved and seamlessly extended from the second surface 310B toward the front plate 302 at a long edge. Can be included at both ends. In various embodiments, the front plate 302 (or the rear plate 311 ) may include only one of the first regions 310D (or the second regions 310E). In another embodiment, some of the first regions 310D or the second regions 310E may not be included. In the above embodiments, when viewed from the side of the electronic device 300, the side bezel structure 318 has a side surface (eg: The side on which 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 (eg, the key input device 317 is disposed). Side) side may have a second thickness thinner than the first thickness.

According to an 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 (eg: At least one of the camera modules 180 and 280 of FIG. 1 or 2 ), a key input device 317 , a light emitting device 306 , and connector holes 308 and 309 may be included. In various embodiments, 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 other components.

The display 301 (eg, the display device 160 of FIG. 1 ) may be exposed through a significant portion of the front plate 302 , for example. In various embodiments, at least a portion of the display 301 may be exposed through the front plate 302 forming the first surface 310A and the first region 310D of the side surface 310C. In various embodiments, a corner of the display 301 may be substantially identical to an adjacent outer shape of the front plate 302 . In another embodiment (not shown), in order to expand an exposed area of the display 301 , the distance between the outer edge of the display 301 and the outer edge of the front plate 302 may be substantially the same.

In another embodiment (not shown), a recess or opening is formed in a portion of the screen display area (eg, active area) or an area outside the screen display area (eg, 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. 305, and at least one of the light emitting element 306. In another embodiment (not shown), on the back of the screen display area of the display 301, the audio module 314, the sensor module 304, the camera module 305, the fingerprint sensor 316, and the light emitting element 306 ) may include at least one of them. In another embodiment (not shown), the display 301 is coupled to or adjacent to a touch sensing circuit, a pressure sensor capable of measuring the intensity (pressure) of a touch, and/or a digitizer that detects a magnetic stylus pen. can be placed. In some embodiments, at least a portion of the sensor modules 304 and 319 and/or at least a portion of the key input device 317 may be located in the first regions 310D and/or the second region 310E. can be placed in the field.

The audio modules 303 , 307 , and 314 may include microphone holes 303 and speaker holes 307 and 314 . A microphone for acquiring external sound may be disposed inside the microphone hole 303, and in various embodiments, a plurality of microphones may be disposed to detect the direction of sound. The speaker holes 307 and 314 may include an external speaker hole 307 and a receiver hole 314 for communication. In various embodiments, 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 (eg, a piezo speaker).

The sensor modules 304 , 316 , and 319 may generate electrical signals or data values corresponding to an internal operating state of the electronic device 300 or an external environmental state. The sensor modules 304, 316, and 319 may include, for example, a first sensor module 304 (eg, a proximity sensor) and/or a second sensor module (eg, a proximity sensor) disposed on the first surface 310A of the housing 310. (not shown) (eg, a fingerprint sensor), and/or a third sensor module 319 (eg, an HRM sensor) and/or a fourth sensor module 316 disposed on the second surface 310B of the housing 310. ) (eg, a fingerprint sensor). The fingerprint sensor may be disposed on the second surface 310B as well as the first surface 310A (eg, the display 301 ) of the housing 310 . The electronic device 300 includes a sensor module (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, At least one of a humidity sensor and an illuminance sensor may be further included.

The camera modules 305, 312, and 313 include a first camera device 305 disposed on the first surface 310A of the electronic device 300 and a second camera device 312 disposed on the second surface 310B. ) and/or flash 313. The camera modules 305 and 312 may include one or a plurality of 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 various embodiments, two or more lenses (infrared camera, wide-angle and telephoto lenses) and image sensors may be disposed on one side of the electronic device 300 .

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

The light emitting device 306 may be disposed on, for example, the first surface 310A of the housing 310 . The light emitting element 306 may provide, for example, state information of the electronic device 300 in the form of light. In another embodiment, the light emitting device 306 may provide, for example, a light source interlocked with the operation of the camera module 305 . The light emitting element 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 capable of receiving a connector (eg, a USB connector) for transmitting and receiving power and/or data to and from an external electronic device, and/or an external electronic device. and a second connector hole (eg, an earphone jack) 309 capable of accommodating a connector for transmitting and receiving an audio signal.

5 is a configuration diagram illustrating a lens assembly according to various embodiments of the present disclosure. FIG. 6 is a diagram illustrating an imaging plane of an image sensor in the lens assembly of FIG. 5 .

Referring to FIGS. 5 and 6 , the lens assembly 400 (eg, the lens assembly 210 and/or the image sensor 230 of FIG. 2 ) according to various embodiments of the present disclosure includes a plurality (eg, at least 7 lenses). ) of lenses (L1, L2, L3, L4, L5, L6, L7), an infrared cut filter (F), and/or an image sensor (S) (eg, an imaging surface (img)). Depending on the embodiment, the infrared cut filter F may be omitted or replaced with a band pass filter. In another embodiment, the infrared cut filter F and/or the image sensor S (eg, the image sensor 230 of FIG. 2 ) may be described as a component separate from the lens assembly 400 . For example, the infrared cut filter (F) and/or the image sensor (S, 230) may be an electronic device (e.g., the electronic device (101, 102, 104, 300) of FIG. 1 or 3) or an optical device (e.g., It can be mounted on the camera module (180, 280) of FIG. 1 or 2), and the plurality of lenses (L1, L2, L3, L4, L5, L6, L7) constituting the lens assembly 400 form an optical axis (O). In a state aligned with the infrared cut filter (F) and/or the image sensor (S, 230), it may be mounted on an electronic device or an optical device. In one embodiment, at least one of the lenses (L1, L2, L3, L4, L5, L6, L7) may reciprocate along the optical axis (O) direction, and the electronic device (eg, in FIG. 1 or FIG. 3) The electronic devices 101, 102, 104, and 300) or the processor 120 of FIG. 1 reciprocates at least one of the lenses L1, L2, L3, L4, L5, L6, and L7 in the direction of the optical axis O. By doing so, focus adjustment or focal distance adjustment can be performed. In another embodiment, the lens assembly 400 can be arranged as any one of the camera modules 305, 312, 313 of FIG. 3 or 4.

According to various embodiments, the plurality of lenses L1, L2, L3, L4, L5, L6, and L7 may be made of a plastic material or a glass material, and the image sensor S, 230 from the object obj side (Example: The first lens L1, the second lens L2, the third lens L3, the fourth lens L4, and the second lens L4 sequentially arranged along the optical axis O toward the imaging plane img). A fifth lens L5, a sixth lens L6, and/or a seventh lens L7 may be included. For example, the lenses L1 , L2 , L3 , L4 , L5 , L6 , and L7 may be aligned on the optical axis O along with the image sensors S and 230 . In one embodiment, the lens assembly 400 may further include a diaphragm disposed between the second lens L2 and the third lens L3. “between the second lens L2 and the third lens L3” means, for example, the image sensor side S5 of the second lens L2 and the object side of the third lens L3 ( S7) may be included. For example, as will be examined through the lens data of [Table] to be described later, either the image sensor side (S5) of the second lens (L2) or the object side (S7) of the third lens (L3) is used as the diaphragm. can be provided.

According to various embodiments, each of the lenses L1, L2, L3, L4, L5, L6, and L7 may include an object obj side and an image sensor S, 230 side. In examining various embodiments later, some of the object side(s) and the image sensor side(s) of the lenses (L1, L2, L3, L4, L5, L6, and L7) are included in the drawings for brevity of the drawings. Note that the reference number of is omitted. In the following detailed description, a reference number 'Sd' may be given to the object side or the image sensor side of the lens(s) while citing the natural number 'd', and the reference numbers for the lens surface omitted from the drawings are shown in the figure. It will be easily understood when referring to 5 or through [Tables] to be described later regarding lens data of various embodiments. In [Tables] to be described later, a symbol '*' may be written along with an aspherical lens surface, and some reference numbers may not correspond to actual lens surfaces. For example, although omitted in the drawing, the reference position of the structure for arranging the cover window may be described as 'S1' in [Tables], and in describing the position of the structure considered in the design of the lens assembly 400, the drawing is omitted, but reference numbers of lens surfaces may be given in [Tables]. In some embodiments, 'sto' may be written on a surface provided as an aperture among lens surfaces, and 'S17' and 'S18' may indicate the object side and the image sensor side of the infrared cut filter (F). there is.

In the following detailed description, the shape of the lens L1, L2, L3, L4, L5, L6, L7 on the object side or the image sensor side will be described using the terms 'concave' or 'convex'. can The reference to the shape of the lens surface may describe the shape of a point crossing the optical axis O, unless otherwise noted. 'The side of the object is concave' may describe a shape in which the center of the radius of curvature of the side of the object is located closer to the object obj than the side of the object. 'The object-side surface is convex' may describe a shape in which the center of the radius of curvature of the object-side surface is located closer to the image sensor S than the object-side surface. 'The side of the image sensor is concave' may describe a shape in which the center of the radius of curvature of the side of the image sensor is located closer to the image sensor S than to the side of the image sensor. 'The side of the image sensor is convex' may describe a shape in which the center of the radius of curvature of the side of the image sensor is located closer to the object obj than the side of the image sensor. For example, in FIG. 5 , the object-side surface S2 of the first lens L1 may be understood as being convex, and the image sensor-side surface S16 of the seventh lens L7 may be understood as being concave.

According to various embodiments, at least one of the lenses L1, L2, L3, L4, L5, L6, and L7 may be an aspherical lens including an inflection point (IP). The term “inflection point (IP)” means the boundary between an area where the center of the radius of curvature is located on the object obj side and an area where the center of the radius of curvature is located on the image sensor S side, on one lens surface. can do. For example, the center of the object-side surface S15 of the sixth lens L6 has the center of the radius of curvature located on the image sensor S side, and the periphery around the center has the curvature located on the object obj side. It can have a center of radius. A point where the position of the radius of curvature is changed may be referred to as an inflection point (IP). When the lens assembly 400 includes at least one aspheric lens or includes at least one aspherical lens including an inflection point IP, field curvature can be easily improved.

In an embodiment to be described later, 'OAL' of the lens assembly 400 describes the distance from the object-side surface S2 of the first lens L1 to the imaging surface img on the optical axis O. can do. In some embodiments, the 'rear distance (bfl(LL))' of the lens assembly 400 refers to the first lens (eg, the seventh lens (L7)) and the image sensor (S) from the image sensor (S) side. Example: As the distance to the imaging plane (img), it may be a distance measured along a direction parallel to the optical axis (O). In another embodiment, 'Y-image height (YIH)' of the lens assembly 400, the image sensor (S) or the imaging surface (img) refers to, for example, the image sensor (S) or the imaging surface (img) It can be understood as the maximum appeal of . 'Image height' may be defined as the distance between a point on the imaging surface img and an optical axis O (eg, a point where the optical axis O intersects on the imaging surface img). . In one embodiment, when the image plane img has a rectangular shape including the long side LE and the short side SE, the Y-image height YIH or maximum image height can be understood as half of the diagonal length of the image plane img. can

According to various embodiments, the first lens L1 disposed first from the object side obj may include a convex object side surface S2 having positive refractive power. When the first lens L1 has a positive refractive power, the size of the total luminous flux is reduced, so that the lens assembly 400 can be easily miniaturized, and the F-number can be easily reduced to 2.0 or less. According to one embodiment, when the first lens L1 is an aspheric lens, spherical aberration may be easily corrected. According to another embodiment, the first lens (L1) has an Abbe number, Vd1 of about 80 or more, so that it can be more compact than other lens assemblies having the same brightness (eg, F number), and can be more compact than other lens assemblies of the same size. Brightness performance can be high. For example, the lens assembly 400 may have an F number, Fno, of about 1.85 or less. In one embodiment, the F number, Fno, of the lens assembly 400 may be approximately 1.8 or greater. In some embodiments, considering the refractive power distribution or arrangement of the lenses L1, L2, L3, L4, L5, L6, and L7 in the lens assembly 400, the Abbe number, Vd1, of the first lens L1 is approximately 90 or less. may be limited to In some embodiments, at least one of the lenses L1 , L2 , L3 , L4 , L5 , L6 , and L7 (eg, a first lens) in securing a condition for the brightness performance or Abbe number of the lens assembly 400 . (L1)) may include a glass material. In another embodiment, among the lenses L1, L2, L3, L4, L5, L6, and L7 in consideration of ease of manufacture in manufacturing the shape of the lenses L1, L2, L3, L4, L5, L6, and L7. At least one may include a plastic material. For example, the material of the lenses L1 , L2 , L3 , L4 , L5 , L6 , and L7 may be appropriately selected in consideration of design specifications of the lens assembly 400 or ease of manufacture.

According to various embodiments, the second lens L2 disposed second from the side of the object obj may have a negative refractive power and include a convex object-side surface S4, and the third disposed third lens L2 may include a convex object-side surface S4. The lens L3 may include a convex object-side surface S7 with positive refractive power, and the fourth lens L4 disposed fourth may include a concave object-side surface S9 with negative refractive power. . While having the refractive power and lens surface shape of the first to fourth lenses L1, L2, L3, and L4, the lens assembly 400 may satisfy the condition of Equation 1 below.

Here, 'f(L-1)' is the focal length of the second lens (eg, the sixth lens L6) from the image sensor S side, and 'f(L)' is the first focal length from the image sensor S side. It may be the focal length of a lens (eg, the seventh lens L7). In some embodiments, in the lens assembly 400, the calculated value according to [Equation 1] may be approximately -1.6 or greater. According to one embodiment, when the condition of [Equation 1] is satisfied, the lens assembly 400 can secure the relative illumination required for image acquisition in an area expanded by approximately 1.065 times the YIH. For example, even if the lens (L1, L2, L3, L4, L5, L6, L7) (s) and the image sensor (S) are moved relative to each other in a plane perpendicular to the optical axis (O) in the image stabilization operation, the lens assembly ( 400) can obtain an image of good quality. In general image stabilization operation, if the relative displacement of the lens (L1, L2, L3, L4, L5, L6, L7)(s) and the image sensor (S) is allowed by an angle of approximately 1.5 degrees, the condition of [Equation 1] When satisfied, the relative displacement of the lens L1, L2, L3, L4, L5, L6, L7(s) and the image sensor S may be allowed up to approximately 3.0 degrees. For example, the lens assembly 400 according to various embodiments of the present disclosure may improve hand shake correction performance or quality of an acquired image by satisfying the condition of [Equation 1].

According to various embodiments, the lens assembly 400 may have a rear distance bfl(LL) that satisfies the condition of [Equation 2] below.

As mentioned above, the rear distance bfl(LL) is the distance between the first lens (eg, the seventh lens L7) on the image sensor S side and the image plane img, and the unit may be 'mm'. there is. According to one embodiment, by satisfying the condition of [Equation 2], design freedom can be increased in arranging the infrared cut filter F. In another embodiment, by securing a sufficient distance between the seventh lens L7 and the image sensor S, even if the diameters of the lenses L1, L2, L3, L4, L5, L6, L7(s) are reduced. The lens assembly 400 may provide optical performance corresponding to an image sensor S having a sufficiently large size (eg, approximately 1/1.2 inch to 1 inch). In some embodiments, the back distance (bfl(LL)) may be approximately 1.15 mm or less.

According to various embodiments, the lens assembly 400 may satisfy the condition of [Equation 3] below in the correlation between the full length OAL and the YIH.

For example, as described above, the lens assembly 400 may be miniaturized while improving image stabilization performance or image quality. In some embodiments, the calculated value of [Equation 3] may be approximately 1.16 or greater.

According to various embodiments, a modulation transfer function (MTF) is implemented in the lens assembly 400, and the refractive index of the fifth lens L5 may be approximately 1.59 or more for aberration control. When the refractive index of the fifth lens L5 is less than 1.59, aberration control may be difficult or image quality in the periphery may deteriorate. In some embodiments, the refractive index of the fifth lens L5 may be 1.65 or less.

According to various embodiments, the lens assembly 400 may satisfy the condition of [Equation 4] below in terms of the total focal length f and the focal length f1 of the first lens L1.

For example, in the relationship between the total focal length f and the focal length f1 of the first lens L1, if it is greater than the upper limit of [Equation 4], aberration correction (e.g., Correction of spherical aberration) may be difficult, and if it is smaller than the lower limit, correction of coma aberration may be difficult and difficulty in miniaturizing the lens assembly 400 may also be encountered.

According to various embodiments, in the thicknesses of the first to fourth lenses L1, L2, L3, and L4, the lens assembly 400 may satisfy the condition of [Equation 5] below. In [Equation 5], 'Dd' may be the thickness of the dth lens on the optical axis.

In one embodiment, when the lens assembly 400 satisfies the condition of [Equation 5], the refractive power distribution and arrangement of the lenses L1, L2, L3, L4, L5, L6, and L7 may be easily designed. , implementation of a modulation transfer function or control of aberrations may be easy. In some embodiments, in relation to the thicknesses of the first to fourth lenses L1, L2, L3, and L4, a calculated value according to [Equation 5] may be approximately 0.85 or more.

According to various embodiments, the lens assembly 400 may further include an optical member R disposed on the side of the object obj rather than the first lens L1. The optical member R may reflect or refract external light incident along the first direction d1 crossing the optical axis O to propagate it in the second direction d2. The second direction d2 may be substantially parallel to the optical axis O, for example. For example, when including the optical member R, the lens assembly 400 may acquire an image of a subject or object obj_r disposed in the first direction d1. In one embodiment, the first direction (d1) may be substantially parallel to the Z-axis direction of FIG. 3 or 4, and the second direction (d2) or optical axis (O) is in the XY plane of FIG. 3 or 4 can be substantially parallel. The lens assembly 400 may guide or focus the light traveling in the second direction d2 and make it incident to the image sensor S. In another embodiment, the lens assembly 400 may not include an optical member (R), and when the optical member (R) is not included, the optical axis (O) is the X axis, Y axis or It can be placed parallel to either of the Z axes. In another embodiment, the lens assembly 400 may further include a second optical member (not shown). For example, the second optical member may be disposed between the first lens (eg, the seventh lens L7) on the image sensor S side and the image sensor S, and the lenses L1, L2, L3, and L4 , L5, L6, and L7), light incident along the optical axis O may be refracted or reflected in a direction crossing the optical axis O, and guided to the image sensor S. For example, unlike the illustrated embodiment, the image sensor S may be disposed to receive light from a direction crossing the optical axis O shown in FIG. 5 .

As described above, in the lens assembly 400 according to various embodiments, the F number is determined by controlling the Abbe number of the first lens L1 and the focal distance between the sixth lens L6 and the seventh lens L7. It can be lowered and the angular range in image stabilization operation can be expanded. In some embodiments, the lens assembly 400 may be easily miniaturized by securing a distance between the first lens (eg, the seventh lens L7) on the image sensor S side and the image sensor S, and may block infrared rays. Design freedom in the arrangement of the filter F can be improved. In another embodiment, considering aberration correction, the focal length of the first lens L1 relative to the total focal length of the lens assembly 400 may be appropriately selected within a specified range.

[Example 1]

7 is a configuration diagram illustrating a lens assembly 500 (eg, the lens assembly 400 of FIG. 5 ) according to various embodiments of the present disclosure. 8 is a graph showing spherical aberration, astigmatism, and distortion of the lens assembly 500 according to various embodiments of the present disclosure. 9 is a graph showing relative illumination of the lens assembly 500 according to various embodiments of the present disclosure.

8(a) is a graph showing spherical aberration of the lens assembly 500 according to one of various embodiments of the present disclosure, wherein the horizontal axis represents the coefficient of spherical aberration in the longitudinal direction, and the vertical axis represents the distance from the center of the optical axis. As shown by normalization, the change of longitudinal spherical aberration according to the wavelength of light is shown. 8(b) is a graph showing astigmatism of the lens assembly 500 according to one of various embodiments of the present disclosure, and FIG. 8(c) is a lens assembly according to one of various embodiments of the present disclosure ( 500) is a graph showing the distortion rate. 9 defines the illuminance of the point where the optical axis O intersects on the imaging surface img as 100%, and illustrates the relative illumination according to the distance from the optical axis O on the imaging surface img. are doing

In the lens assembly 500 of FIG. 7 , the image sensor side surface S5 of the second lens L2 may be provided as a diaphragm, and an optical member that refracts or reflects incident light (eg, the optical member of FIG. 5 ). (R)) (s) may further be included. In one embodiment, the focal length of the lens assembly 500 is approximately 6.29 mm, the field of view (FOV) is approximately 85.2 degrees, and the F-number may be approximately 1.81. When there is no hand shake correction operation, the lens assembly 500 has a Y-image height (YIH) of about 6.0 mm, and the Y-image height (YIH) in the hand shake correction operation may be extended to about 6.39 mm. The lens assembly 500 and/or the lenses L1, L2, L3, L4, L5, L6, and L7 satisfy the above-described conditions regarding refractive power, lens surface shape, and/or refractive index, and are shown in the following [Table 1]. It can be manufactured to the specifications illustrated.

lens face radius of curvature thickness or
air gap effective radius texture focal length index of refraction Abe number obj infinity 1000 S1 infinity -0.814 1.784 S2* 2.256 0.930 1.783 glass 6.33 1.50 81.62 S3* 6.869 0.230 1.686 S4* 7.570 0.250 1.566 plastic -33.27 1.67 19.24 S5(sto)* 5.594 0.281 1.440 S6 infinity 0.000 1.430 S7* 12.750 0.290 1.428 plastic 37.80 1.54 55.93 S8* 33.063 0.299 1.410 S9* -50.141 0.316 1.453 plastic -27.63 1.67 19.24 S10* 30.042 0.331 1.697 S11* 21.706 0.298 1.935 plastic -60.27 1.61 25.96 S12* 13.659 0.479 2.282 S13* 3.889 0.637 2.980 plastic 7.74 1.57 37.40 S14* 30.678 0.985 3.308 S15* 7.233 0.495 4.520 plastic -4.96 1.53 55.71 S16* 1.900 0.199 4.663 S17 infinity 0.210 5.679 glass infinity 1.52 64.20 S18 infinity 0.000 5.766 S19 infinity 0.837 5.766 img infinity 0.004 6.390

The following [Table 2], [Table 3] and [Table 4] describe the aspherical surface coefficients of the first to seventh lenses (L1 to L7), and the definition of the aspheric surface is calculated through the following [Equation 6] It can be.

Here, 'z' is the distance from the apex of the lens in the direction of the optical axis (O), 'y' is the distance in the direction perpendicular to the optical axis (O), and 'c'' is the reciprocal of the radius of curvature at the apex of the lens. , 'k' is the Conic constant, 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'J', ' K', 'L', 'M', 'N', and 'O' may respectively mean aspheric coefficients.

S2 S3 S4 S5 S7 k -5.34797E-01 -2.62339E+00 9.97071E+00 4.17299E+00 1.16422E+00 A 7.58564E-02 -1.30879E-02 1.57935E-02 2.15860E-02 -6.74898E-02 B 9.49628E-04 -1.31719E-03 2.17399E-02 1.81710E-02 3.30173E-03 C -2.94898E-03 -1.15789E-03 2.80804E-03 4.62075E-03 3.83254E-03 D -1.37334E-03 -6.65752E-04 -3.27185E-05 1.11608E-03 9.30795E-04 E -5.37043E-04 -2.83835E-04 -3.11020E-04 1.41169E-04 -2.65264E-05 F -1.89106E-04 -7.73682E-05 -1.53883E-04 -9.16915E-05 -8.00868E-05 G -7.60901E-05 1.53772E-06 -4.48032E-05 -8.80450E-05 -8.33985E-05 H -2.66552E-05 1.16192E-05 -1.30276E-06 -6.16519E-05 -3.19227E-05 J -7.03003E-06 8.69490E-06 8.48532E-06 -2.61065E-05 -2.28228E-05 K 0.00000E+00 0.00000E+00 8.78783E-06 -1.15902E-05 -4.14343E-06 L 0.00000E+00 0.00000E+00 5.65968E-06 -1.29734E-06 -6.11607E-06 M 0.00000E+00 0.00000E+00 3.13426E-06 -1.64399E-06 -1.93594E-06 N 0.00000E+00 0.00000E+00 5.52450E-07 1.97258E-06 -3.49619E-06 O 0.00000E+00 0.00000E+00 -5.63074E-07 1.52986E-06 2.08436E-06

S8 S9 S10 S11 S12 k 7.88199E+01 3.93878E+00 -2.78663E+01 2.49845E+00 -1.09259E+01 A -8.77567E-02 -2.35821E-01 -3.36028E-01 -5.55221E-01 -8.12507E-01 B -2.63176E-03 -1.43737E-02 -6.38206E-03 -3.68192E-03 1.79317E-01 C 1.20142E-03 -1.47902E-03 5.40950E-03 -2.42370E-02 -4.22633E-02 D -9.13800E-06 -8.00806E-04 5.06572E-03 1.34060E-02 1.11023E-02 E -2.66176E-04 -5.75775E-04 2.36079E-03 6.93619E-03 -2.87752E-03 F -9.10905E-05 -1.52311E-04 1.57089E-03 5.82984E-03 7.52543E-04 G -5.07548E-05 -7.31025E-05 5.29561E-04 1.16929E-03 -1.56625E-03 H -1.14522E-05 -2.81970E-05 1.22800E-04 -7.18918E-04 1.86524E-04 J -8.60156E-06 -3.14450E-05 -5.99091E-05 -1.16528E-03 3.93219E-04 K 1.43333E-07 -2.27541E-05 -6.62833E-05 -6.42136E-04 1.57043E-04 L -2.03201E-06 -1.66794E-05 -5.08359E-05 -2.53627E-04 -2.96813E-04 M -6.35804E-07 -9.37198E-06 -2.81744E-05 -1.85629E-05 -1.25382E-04 N 9.28054E-07 -5.37501E-06 -1.45755E-05 2.94245E-05 1.14816E-05 O 6.38679E-08 -2.06093E-06 -5.42079E-06 2.58505E-05 4.22799E-05

S13 S14 S15 S16 k -1.67013E+01 2.45237E+00 -6.84320E+00 -9.47812E+00 A -1.51822E+00 -1.24274E+00 -3.13485E+00 -3.27473E+00 B 1.93592E-01 -3.09069E-02 1.52707E+00 8.88496E-01 C 1.37976E-01 6.85658E-02 -7.28069E-01 -2.35849E-01 D -3.78668E-02 3.80572E-03 3.51833E-01 1.41660E-01 E -2.81592E-02 2.72965E-03 -1.76692E-01 -5.88349E-02 F 5.05275E-03 -1.21807E-03 7.68777E-02 1.09076E-02 G 8.55107E-03 1.15517E-03 -2.30253E-02 -1.26374E-02 H -4.50367E-04 1.57905E-03 3.34845E-03 9.03630E-03 J -2.58437E-03 -1.33519E-03 -1.09985E-03 -2.33070E-03 K -5.70702E-05 -6.37314E-04 4.97219E-03 1.53771E-03 L 5.15919E-04 -5.11693E-04 -5.01334E-03 -1.59483E-03 M 1.82495E-04 1.96021E-04 3.19779E-03 3.71204E-04 N -1.11524E-04 9.72928E-05 -1.09574E-03 2.42185E-05 O -2.16984E-05 6.91993E-05 1.46060E-04 4.86498E-05

[Example 2]

10 is a configuration diagram illustrating a lens assembly 600 (eg, the lens assembly 400 of FIG. 5 ) according to various embodiments of the present disclosure. 11 is a graph showing spherical aberration, astigmatism, and distortion of the lens assembly 600 according to various embodiments of the present disclosure. 12 is a graph showing relative illumination of the lens assembly 600 according to various embodiments of the present disclosure.

In the lens assembly 600 of FIG. 10 , the image sensor side surface S5 of the second lens L2 may be provided as a diaphragm, and an optical member that refracts or reflects incident light (eg, the optical member of FIG. 5 ). (R)) (s) may further be included. In one embodiment, the focal length of the lens assembly 600 may be approximately 6.33 mm, the angle of view may be approximately 85.2 degrees, and the F-number may be approximately 1.81. When there is no hand shake correction operation, the lens assembly 600 has a Y-image height (YIH) of about 6.0 mm, and the Y-image height (YIH) in the hand shake correction operation may be extended to about 6.39 mm. The lens assembly 600 and/or the lenses L1, L2, L3, L4, L5, L6, and L7 satisfy the above-described conditions regarding refractive power, lens surface shape, and/or refractive index, and are shown in the following [Table 5]. It may be manufactured according to the exemplified specifications and may have aspheric coefficients of [Table 6] to [Table 8].

lens face radius of curvature thickness or
air gap effective radius texture focal length index of refraction Abe number obj infinity 1000 S1 infinity -0.814 1.784 S2* 2.265 0.921 1.784 glass 6.34 1.50 81.46 S3* 6.932 0.223 1.689 S4* 7.723 0.255 1.579 plastic -32.23 1.67 19.24 S5(sto)* 5.632 0.283 1.447 S6* infinity 0.000 1.439 S7* 13.324 0.293 1.435 plastic 35.25 1.54 55.93 S8* 42.913 0.290 1.413 S9* -36.870 0.331 1.452 plastic -25.76 1.67 19.24 S10* 33.395 0.338 1.707 S11* 21.153 0.317 1.967 plastic -63.31 1.61 25.96 S12* 13.667 0.497 2.360 S13* 3.861 0.639 3.040 plastic 7.78 1.57 37.40 S14* 27.863 0.999 3.333 S15* 7.438 0.490 4.573 plastic -5.04 1.53 55.71 S16* 1.939 0.202 4.758 S17 infinity 0.210 5.717 glass infinity 1.52 64.20 S18 infinity 0.000 5.803 S19 infinity 0.837 5.803 img infinity -0.004 6.390

S2 S3 S4 S5 S7 k -5.32268E-01 -2.57749E+00 9.96211E+00 4.21913E+00 3.63084E+00 A 7.68383E-02 -1.28715E-02 1.83973E-02 2.35065E-02 -6.73238E-02 B 3.32661E-04 -1.07670E-03 2.33049E-02 1.83662E-02 3.91316E-03 C -3.10358E-03 -7.01213E-04 3.61688E-03 4.94364E-03 3.72473E-03 D -1.42836E-03 -3.61275E-04 5.37273E-04 1.43173E-03 1.05766E-03 E -4.69893E-04 -1.47851E-04 -5.99461E-05 4.82830E-04 1.90713E-04 F -1.58511E-04 -4.21067E-05 -6.79498E-05 9.22072E-05 6.57300E-05 G -3.91152E-05 1.93790E-05 -2.53864E-05 4.85605E-05 7.84327E-06 H -1.41652E-05 8.31725E-06 -9.88397E-06 -2.14460E-05 3.29866E-06 J 1.43756E-05 -1.72122E-06 -6.86240E-06 -7.24429E-06 -1.44823E-06 K 0.00000E+00 0.00000E+00 -3.52850E-06 -1.96614E-05 -2.39045E-06 L 0.00000E+00 0.00000E+00 -5.46352E-06 -2.69198E-06 -6.90208E-06 M 0.00000E+00 0.00000E+00 -3.52331E-06 -8.33058E-06 -3.40618E-06 N 0.00000E+00 0.00000E+00 -3.92555E-06 4.32493E-06 1.31287E-06 O 0.00000E+00 0.00000E+00 2.80907E-06 -2.58969E-06 4.10605E-07

S8 S9 S10 S11 S12 k -2.33376E+00 1.04149E+00 -6.87171E+00 -9.43262E-01 -7.24382E+00 A -8.94218E-02 -2.35339E-01 -3.44349E-01 -5.93638E-01 -8.69734E-01 B -2.39513E-03 -1.47840E-02 -5.06112E-03 -3.50017E-03 1.98892E-01 C 1.14661E-03 -1.06099E-03 7.09586E-03 -1.90028E-02 -5.09946E-02 D -2.24405E-05 -4.64167E-04 6.87947E-03 2.01523E-02 1.12679E-02 E -1.37019E-04 -1.52468E-04 3.22992E-03 9.39641E-03 -5.38699E-03 F -3.86082E-05 3.72834E-05 1.90279E-03 5.23250E-03 -2.39371E-04 G -1.07235E-06 6.73769E-05 5.34212E-04 -8.18596E-04 -2.02070E-03 H -4.55096E-06 1.34155E-05 7.70473E-05 -2.40304E-03 2.55996E-04 J 3.26424E-06 8.35800E-06 -1.11363E-04 -1.94123E-03 2.09138E-04 K -4.02218E-07 -1.18249E-05 -8.22919E-05 -6.78946E-04 -2.12708E-04 L 8.95534E-07 2.54992E-06 -5.36472E-05 -4.63374E-05 -4.87371E-04 M -5.49645E-07 -5.08274E-06 -1.62325E-05 1.67486E-04 -1.01357E-05 N 7.48175E-08 3.14309E-06 2.78474E-07 1.09811E-04 1.34229E-04 O 5.84173E-09 -4.72183E-07 5.03019E-06 4.28161E-05 7.52543E-05

S13 S14 S15 S16 k -1.68592E+01 3.14680E+00 -6.32541E+00 -9.41403E+00 A -1.57696E+00 -1.28852E+00 -3.12949E+00 -3.25320E+00 B 2.34632E-01 -2.01929E-02 1.52254E+00 9.03240E-01 C 1.38224E-01 7.67367E-02 -7.28112E-01 -2.45115E-01 D -4.98260E-02 4.83222E-03 3.52959E-01 1.37027E-01 E -2.76044E-02 2.71611E-03 -1.75055E-01 -5.78843E-02 F 9.93720E-03 -2.26522E-03 7.57493E-02 1.23255E-02 G 9.82819E-03 2.51590E-03 -2.07692E-02 -1.43444E-02 H -2.77733E-03 1.71820E-03 3.09653E-03 1.00903E-02 J -2.92866E-03 -4.49319E-04 -1.65739E-03 -2.88539E-03 K 5.27405E-04 -1.29049E-04 5.14936E-03 1.77223E-03 L 6.51029E-04 -4.25363E-04 -5.63361E-03 -1.46231E-03 M 5.73518E-05 1.53305E-04 3.45747E-03 7.11423E-04 N -1.88438E-04 2.91990E-05 -1.34623E-03 -1.09078E-04 O -4.75737E-05 -1.09008E-05 2.42702E-04 -1.37752E-05

[Example 3]

13 is a configuration diagram illustrating a lens assembly 700 (eg, the lens assembly 400 of FIG. 5 ) according to various embodiments of the present disclosure. 14 is a graph showing spherical aberration, astigmatism, and distortion of the lens assembly 700 according to various embodiments of the present disclosure. 15 is a graph showing relative illumination of the lens assembly 700 according to various embodiments of the present disclosure.

In the lens assembly 700 of FIG. 13 , the image sensor side surface S5 of the second lens L2 may be provided as a diaphragm, and an optical member that refracts or reflects incident light (eg, the optical member of FIG. 5 ). (R)) (s) may further be included. In one embodiment, the focal length of the lens assembly 700 is approximately 6.31 mm, the angle of view is approximately 85.2 degrees, and the F-number may be approximately 1.81. When there is no hand shake correction operation, the lens assembly has a Y-image height (YIH) of approximately 6.0 mm, and the Y-image height (YIH) in the hand shake correction operation may be extended to approximately 6.39 mm. The lens assembly 700 and/or the lenses L1, L2, L3, L4, L5, L6, and L7 satisfy the above-described conditions regarding refractive power, lens surface shape, and/or refractive index, and are shown in the following [Table 9]. It can be manufactured with the exemplified specifications, and can have aspheric coefficients of [Table 10] to [Table 12].

lens face radius of curvature thickness or
air gap effective radius texture focal length index of refraction Abe number obj infinity 1000 S1 infinity -0.814 1.784 S2* 2.259 0.930 1.783 glass 6.34 1.50 81.62 S3* 6.874 0.227 1.687 S4* 7.551 0.251 1.568 plastic -33.32 1.67 19.24 S5(sto)* 5.585 0.283 1.440 S6* infinity 0.000 1.430 S7* 13.296 0.293 1.428 plastic 36.48 1.54 55.93 S8* 39.642 0.298 1.410 S9* -37.755 0.323 1.452 plastic -26.40 1.67 19.24 S10* 34.228 0.335 1.697 S11* 22.876 0.315 1.938 plastic -61.26 1.61 25.96 S12* 14.202 0.485 2.303 S13* 3.881 0.646 3.000 plastic 7.78 1.57 37.40 S14* 28.843 0.983 3.328 S15* 7.390 0.501 4.540 plastic -5.03 1.53 55.71 S16* 1.931 0.209 4.727 S17 infinity 0.210 5.711 glass infinity 1.52 64.20 S18 infinity 0.000 5.796 S19 infinity 0.821 5.796 img infinity 0.010 6.390

S2 S3 S4 S5 S7 k -5.33952E-01 -2.64185E+00 1.00092E+01 4.16405E+00 1.22251E+00 A 7.62336E-02 -1.32552E-02 1.63789E-02 2.15281E-02 -6.75821E-02 B 7.95505E-04 -1.49705E-03 2.20764E-02 1.81604E-02 3.43672E-03 C -3.22163E-03 -1.28095E-03 3.23303E-03 4.91581E-03 3.86301E-03 D -1.46109E-03 -4.97413E-04 3.18094E-04 1.51983E-03 1.21912E-03 E -5.53441E-04 -2.51270E-04 -2.01445E-04 3.78680E-04 1.40522E-04 F -1.69255E-04 -6.55912E-05 -1.42254E-04 2.21946E-05 9.19024E-06 G -6.69029E-05 -1.59121E-05 -5.40693E-05 -4.02060E-05 -5.64935E-05 H -1.79470E-05 6.72512E-06 -1.47833E-05 -5.13591E-05 -2.15395E-05 J -1.23252E-05 -2.37845E-06 1.16534E-06 -3.23248E-05 -2.80904E-05 K 0.00000E+00 0.00000E+00 4.29340E-06 -2.23768E-05 -8.87728E-06 L 0.00000E+00 0.00000E+00 1.76314E-06 -7.93447E-06 -1.39054E-05 M 0.00000E+00 0.00000E+00 3.03691E-07 -3.42557E-06 -4.98533E-06 N 0.00000E+00 0.00000E+00 1.64773E-07 1.52990E-06 -4.79416E-06 O 0.00000E+00 0.00000E+00 6.51093E-07 -7.46911E-07 2.85538E-06

S8 S9 S10 S11 S12 k 7.85991E+01 1.32986E+01 -2.09232E+01 1.47830E-01 -8.58376E+00 A -8.77506E-02 -2.35377E-01 -3.36404E-01 -5.58892E-01 -8.26172E-01 B -2.58654E-03 -1.44347E-02 -6.41668E-03 -3.44769E-03 1.84836E-01 C 1.16117E-03 -1.36571E-03 5.33131E-03 -2.40792E-02 -4.37332E-02 D 1.05508E-04 -5.88645E-04 5.25858E-03 1.40602E-02 1.15224E-02 E -1.74329E-04 -3.55256E-04 2.47762E-03 7.08063E-03 -3.40160E-03 F -6.76700E-05 -1.04509E-04 1.49286E-03 5.73289E-03 6.51963E-04 G -3.39719E-05 -2.42198E-05 5.37155E-04 1.04613E-03 -1.66046E-03 H -9.96742E-06 -3.11970E-05 1.08305E-04 -7.39264E-04 2.03449E-04 J -6.88695E-06 -1.35535E-05 -2.92219E-05 -1.20589E-03 2.98623E-04 K -4.00821E-06 -2.21772E-05 -6.06414E-05 -6.61744E-04 1.42281E-04 L -2.13511E-06 -6.24352E-06 -3.47924E-05 -2.83110E-04 -3.11683E-04 M -1.87948E-06 -9.20942E-06 -2.88190E-05 -1.29183E-05 -1.14042E-04 N 6.67982E-07 -2.29720E-06 -1.05165E-05 2.32749E-05 -1.28349E-05 O -4.58525E-07 -4.69694E-06 -7.26349E-06 2.97060E-05 4.76933E-05

S13 S14 S15 S16 k -1.67839E+01 2.54547E+00 -6.52073E+00 -9.48919E+00 A -1.53078E+00 -1.26609E+00 -3.11183E+00 -3.21907E+00 B 2.03012E-01 -2.58520E-02 1.50599E+00 8.61086E-01 C 1.37816E-01 7.31680E-02 -7.14690E-01 -2.34719E-01 D -3.97542E-02 4.35215E-03 3.45047E-01 1.34375E-01 E -2.81288E-02 2.66308E-03 -1.70773E-01 -5.08820E-02 F 5.95183E-03 -1.62714E-03 7.11831E-02 1.16702E-02 G 8.64338E-03 1.18066E-03 -2.06963E-02 -1.34920E-02 H -9.34926E-04 1.66254E-03 2.22064E-03 8.88890E-03 J -2.61479E-03 -1.24943E-03 -1.97100E-03 -2.04181E-03 K 1.68108E-04 -5.79163E-04 5.54655E-03 1.64322E-03 L 5.29541E-04 -5.19769E-04 -5.04142E-03 -1.66565E-03 M 1.10981E-04 2.10777E-04 3.02759E-03 2.12079E-04 N -1.50348E-04 6.68350E-05 -9.20855E-04 6.60346E-05 O 2.07866E-05 9.10392E-05 1.12679E-04 3.93254E-05

[Example 4]

16 is a configuration diagram illustrating a lens assembly 800 (eg, the lens assembly 400 of FIG. 5 ) according to various embodiments of the present disclosure. 17 is a graph showing spherical aberration, astigmatism, and distortion of the lens assembly 800 according to various embodiments of the present disclosure. 18 is a graph showing relative illumination of the lens assembly 800 according to various embodiments of the present disclosure.

In the lens assembly 800 of FIG. 16 , the image sensor side surface S5 of the second lens L2 may be provided as a diaphragm, and an optical member that refracts or reflects incident light (eg, the optical member of FIG. 5 ). (R)) (s) may further be included. In one embodiment, the focal length of the lens assembly 800 may be approximately 6.29 mm, the angle of view may be approximately 85.2 degrees, and the F-number may be approximately 1.81. When there is no hand shake correction operation, the lens assembly 800 has a Y-image height (YIH) of approximately 6.0 mm, and the Y-image height (YIH) in the hand shake correction operation may be extended to approximately 6.39 mm. The lens assembly 800 and/or the lenses L1, L2, L3, L4, L5, L6, and L7 satisfy the above-described conditions regarding refractive power, lens surface shape, and/or refractive index, and are shown in the following [Table 13]. It may be manufactured according to the exemplified specifications, and may have aspheric coefficients of [Table 14] to [Table 16].

lens face radius of curvature thickness or
air gap effective radius texture focal length index of refraction Abe number obj infinity 1000 S1 infinity -0.814 1.784 S2* 2.256 0.931 1.783 glass 6.33 1.50 81.62 S3* 6.866 0.229 1.686 S4* 7.552 0.250 1.566 plastic -33.12 1.67 19.24 S5(sto)* 5.578 0.281 1.440 S6 infinity 0.000 1.430 S7* 12.890 0.290 1.427 plastic 37.16 1.54 55.93 S8* 35.032 0.297 1.410 S9* -42.422 0.317 1.461 plastic -27.32 1.67 19.24 S10* 33.051 0.332 1.722 S11* 22.074 0.301 1.965 plastic -59.89 1.61 25.96 S12* 13.772 0.480 2.351 S13* 3.881 0.641 2.980 plastic 7.70 1.57 37.40 S14* 31.332 0.980 3.313 S15* 7.251 0.502 4.520 plastic -4.93 1.53 55.71 S16* 1.892 0.207 4.700 S17 infinity 0.210 5.707 glass infinity 1.52 64.20 S18 infinity 0.000 5.793 S19 infinity 0.827 5.793 img infinity 0.006 6.390

S2 S3 S4 S5 S7 k -5.34295E-01 -2.63991E+00 9.98548E+00 4.17007E+00 1.28171E+00 A 7.60206E-02 -1.32683E-02 1.59052E-02 2.16159E-02 -6.73891E-02 B 9.26081E-04 -1.44443E-03 2.17643E-02 1.82516E-02 3.22670E-03 C -2.97819E-03 -1.23836E-03 2.79465E-03 4.56890E-03 3.77978E-03 D -1.38597E-03 -7.12425E-04 -1.23890E-04 1.05243E-03 9.69728E-04 E -5.49496E-04 -3.04048E-04 -3.54273E-04 4.09487E-05 -7.70194E-05 F -1.91142E-04 -9.19496E-05 -2.15045E-04 -1.90462E-04 -1.39958E-04 G -8.11787E-05 -1.23783E-05 -8.05303E-05 -1.79189E-04 -1.51171E-04 H -3.76606E-05 2.81766E-06 -2.10190E-05 -1.22907E-04 -7.56619E-05 J -1.31773E-05 6.59981E-08 4.29173E-06 -7.11687E-05 -5.61506E-05 K 0.00000E+00 0.00000E+00 1.31460E-05 -3.11878E-05 -1.61702E-05 L 0.00000E+00 0.00000E+00 1.19021E-05 -9.59071E-06 -1.27415E-05 M 0.00000E+00 0.00000E+00 8.45464E-06 2.91091E-06 1.37615E-06 N 0.00000E+00 0.00000E+00 4.84375E-06 8.90364E-06 3.40522E-06 O 0.00000E+00 0.00000E+00 2.43828E-06 6.22866E-06 7.99547E-06

S8 S9 S10 S11 S12 k 7.83492E+01 4.44021E+00 -2.91405E+01 3.36191E+00 -1.04840E+01 A -8.77726E-02 -2.42092E-01 -3.54808E-01 -5.90258E-01 -8.68675E-01 B -2.63754E-03 -1.52781E-02 -2.99310E-03 -3.00490E-03 1.95975E-01 C 1.15496E-03 -1.76806E-03 9.19811E-03 -1.97451E-02 -5.04833E-02 D 8.38683E-05 -9.46336E-04 7.64820E-03 1.92163E-02 1.02286E-02 E -2.35263E-04 -6.22686E-04 3.63107E-03 9.12324E-03 -6.21695E-03 F -8.68717E-05 -2.36608E-04 1.90005E-03 5.22361E-03 -1.47265E-03 G -6.06984E-05 -1.49004E-04 3.50121E-04 -1.09520E-03 -2.96757E-03 H -1.66334E-05 -9.92731E-05 -1.51525E-04 -2.67037E-03 -2.45502E-04 J -1.71640E-05 -6.84501E-05 -2.82770E-04 -2.21799E-03 -2.85317E-04 K -5.12559E-06 -4.92491E-05 -2.13433E-04 -9.48632E-04 -6.65571E-04 L -3.50464E-06 -2.88505E-05 -1.37587E-04 -2.53903E-04 -6.62790E-04 M -4.56274E-07 -1.99412E-05 -8.01120E-05 4.64824E-05 -2.19714E-05 N 1.87838E-07 -5.37315E-06 -3.30725E-05 7.09765E-05 1.58280E-04 O -1.89194E-06 -5.57316E-07 -1.12940E-05 3.64827E-05 6.82881E-05

S13 S14 S15 S16 k -1.67515E+01 8.93247E+00 -6.80321E+00 -9.71721E+00 A -1.51752E+00 -1.19755E+00 -3.12872E+00 -2.97702E+00 B 1.92529E-01 -3.93020E-02 1.52001E+00 7.41372E-01 C 1.37443E-01 6.37667E-02 -7.23988E-01 -2.21535E-01 D -3.71618E-02 3.18529E-03 3.50445E-01 1.17703E-01 E -2.81450E-02 2.67601E-03 -1.74460E-01 -3.63423E-02 F 4.98188E-03 -1.71434E-03 7.45873E-02 1.30494E-02 G 8.52445E-03 1.11256E-03 -2.23288E-02 -1.23214E-02 H -5.35356E-04 1.83404E-03 2.78099E-03 5.32686E-03 J -2.42097E-03 -6.52912E-04 -1.64156E-03 -1.99628E-03 K -7.35164E-05 -4.31069E-04 5.31388E-03 1.77884E-03 L 4.78634E-04 -5.19233E-04 -5.34993E-03 -7.54376E-04 M 1.64846E-04 6.98789E-05 3.27076E-03 3.83472E-05 N -8.62719E-05 4.37794E-05 -1.14074E-03 2.17662E-05 O -2.02835E-05 6.79116E-05 1.34514E-04 9.51505E-07

[Example 5]

19 is a configuration diagram illustrating a lens assembly 900 (eg, the lens assembly 400 of FIG. 5 ) according to various embodiments of the present disclosure. 20 is a graph showing spherical aberration, astigmatism, and distortion of the lens assembly 900 according to various embodiments of the present disclosure. 21 is a graph showing relative illumination of a lens assembly 900 according to various embodiments of the present disclosure.

In the lens assembly 900 of FIG. 19 , the image sensor side surface S5 of the second lens L2 may be provided as a diaphragm, and an optical member that refracts or reflects incident light (eg, the optical member of FIG. 5 ). (R)) (s) may further be included. In one embodiment, the focal length of the lens assembly 900 may be approximately 6.31 mm, the angle of view may be approximately 85.2 degrees, and the F-number may be approximately 1.81. When there is no image stabilization operation, the lens assembly has a Y-image height (YIH) of approximately 6.0 mm, and the Y-image height (YIH) in the image stabilization operation may be extended to approximately 6.39 mm. The lens assembly 900 and/or the lenses L1, L2, L3, L4, L5, L6, and L7 satisfy the above-described conditions regarding refractive power, lens surface shape, and/or refractive index, and the following [Table 17] It can be manufactured with the exemplified specifications, and can have aspheric coefficients of [Table 18] to [Table 20].

lens face radius of curvature thickness or
air gap effective radius texture focal length index of refraction Abe number obj infinity 1000 S1 infinity -0.814 1.784 S2* 2.248 0.967 1.784 glass 6.28 1.50 81.62 S3* 6.884 0.243 1.678 S4* 7.662 0.251 1.557 plastic -32.18 1.67 19.24 S5(sto)* 5.598 0.274 1.430 S6* infinity 0.000 1.420 S7* 12.467 0.287 1.417 plastic 37.53 1.54 55.93 S8* 31.557 0.296 1.400 S9* -46.655 0.329 1.446 plastic -27.44 1.67 19.24 S10* 31.094 0.330 1.706 S11* 22.470 0.290 1.961 plastic -61.52 1.61 25.96 S12* 14.070 0.467 2.310 S13* 3.910 0.639 2.980 plastic 7.97 1.57 37.40 S14* 26.293 0.964 3.273 S15* 5.488 0.464 4.440 plastic -5.03 1.54 55.93 S16* 1.777 0.500 4.684 S17 infinity 0.210 5.904 glass infinity 1.52 64.20 S18 infinity 0.000 5.992 S19 infinity 0.549 5.992 img infinity -0.009 6.390

S2 S3 S4 S5 S7 k -5.32146E-01 -2.68564E+00 9.92461E+00 4.15165E+00 1.25104E+00 A 7.63141E-02 -1.30458E-02 1.37650E-02 1.94342E-02 -6.59404E-02 B 1.91484E-03 -1.73875E-03 2.08202E-02 1.77100E-02 2.54520E-03 C -2.60607E-03 -1.11969E-03 2.65219E-03 4.43599E-03 3.70064E-03 D -1.20758E-03 -5.38130E-04 2.59745E-06 1.05336E-03 8.52340E-04 E -4.88729E-04 -2.31336E-04 -2.54478E-04 9.77001E-05 -6.76120E-05 F -1.54777E-04 -5.08867E-05 -1.15848E-04 -9.87385E-05 -1.15058E-04 G -7.11810E-05 6.56557E-06 -3.08476E-05 -9.25361E-05 -9.30476E-05 H -2.15959E-05 1.48503E-05 3.34338E-06 -6.17398E-05 -3.86332E-05 J -1.38074E-05 4.74184E-06 7.31386E-06 -3.31812E-05 -2.23427E-05 K 0.00000E+00 0.00000E+00 7.45385E-06 -1.63388E-05 -5.22461E-06 L 0.00000E+00 0.00000E+00 3.17706E-06 -5.67333E-06 -5.15960E-06 M 0.00000E+00 0.00000E+00 2.13785E-06 -1.12405E-06 -1.44827E-06 N 0.00000E+00 0.00000E+00 -5.47090E-07 3.58103E-06 -7.42070E-07 O 0.00000E+00 0.00000E+00 -9.82612E-07 2.44594E-06 2.21166E-06

S8 S9 S10 S11 S12 k 7.53694E+01 3.22595E+01 -5.14796E+01 2.50354E-01 -1.27913E+01 A -8.52023E-02 -2.30791E-01 -3.43138E-01 -5.85017E-01 -8.37969E-01 B -2.88999E-03 -1.39763E-02 -6.39821E-03 -2.98676E-03 1.87984E-01 C 1.27851E-03 -1.35896E-03 5.49404E-03 -1.95654E-02 -4.44471E-02 D 3.80966E-05 -9.42555E-04 4.86799E-03 1.79025E-02 1.03138E-02 E -2.49810E-04 -5.87122E-04 2.48836E-03 9.43420E-03 -3.87385E-03 F -1.08136E-04 -2.50143E-04 1.63304E-03 6.15426E-03 4.27231E-05 G -4.71178E-05 -8.84086E-05 6.12213E-04 -4.34973E-06 -1.84348E-03 H -1.41946E-05 -5.18437E-05 1.63093E-04 -1.86440E-03 5.69961E-04 J -8.97590E-06 -2.74501E-05 -2.48225E-05 -1.75376E-03 4.38727E-04 K -4.91049E-06 -2.62121E-05 -4.86711E-05 -6.94829E-04 -1.08127E-04 L -4.21139E-06 -1.05744E-05 -4.03849E-05 -1.55304E-04 -5.43475E-04 M -2.03154E-06 -1.14242E-05 -2.81419E-05 1.00746E-04 -7.39198E-05 N 1.21455E-07 -1.99346E-06 -1.37840E-05 7.24630E-05 9.38980E-05 O 3.35271E-07 -3.03983E-06 -5.48472E-06 4.16140E-05 9.44814E-05

S13 S14 S15 S16 k -1.66018E+01 -7.59690E+00 -9.20702E+00 -8.44180E+00 A -1.54049E+00 -1.27662E+00 -3.12549E+00 -3.31203E+00 B 2.22672E-01 -3.76221E-02 1.52595E+00 9.48390E-01 C 1.38138E-01 8.01756E-02 -7.17244E-01 -2.50721E-01 D -4.68590E-02 7.09901E-03 3.30842E-01 1.38415E-01 E -2.87467E-02 2.51905E-03 -1.65680E-01 -6.93537E-02 F 7.99210E-03 -2.39791E-04 7.42933E-02 1.44745E-02 G 9.23929E-03 1.63146E-03 -2.64395E-02 -1.14788E-02 H -1.30152E-03 1.70787E-03 4.13068E-03 1.17699E-02 J -3.18279E-03 -1.90634E-03 -3.48491E-03 -2.95956E-03 K 1.40481E-04 -8.84041E-04 5.15407E-03 1.63733E-03 L 6.94550E-04 -6.30233E-04 -4.88724E-03 -2.10133E-03 M 2.38045E-04 3.13185E-04 3.19839E-03 2.73996E-04 N -1.46944E-04 1.52476E-04 -8.71867E-04 -7.91328E-05 O 9.68315E-06 1.49422E-04 2.45961E-04 1.27980E-04

The lens assemblies 500, 600, 700, 800, and 900 of the above-described [Example 1-5] have the following calculated values with respect to the conditions presented in [Equation 1] to [Equation 5], It is possible to have an extended range of hand shake correction operation while having a low f-number.

Example 1 Example 2 Example 3 Example 4 Example 5 Equation 1 -1.56 -1.54 -1.55 -1.56 -1.58 Equation 2 1.09 1.08 1.09 1.09 1.08 Equation 3 1.18 1.19 1.19 1.18 1.18 Equation 4 0.993 0.998 0.995 0.994 1.00 Equation 5 0.92 0.95 0.93 0.92 0.9

As described above, according to various embodiments of the present disclosure, a lens assembly (eg, the lens assembly 400 of FIG. 5 ) and/or an electronic device including the lens assembly (eg, the electronic device 101 of FIGS. 1 to 4 , 102, 104, 300) is an optical axis (eg, optical axis O in FIG. 5) from the object (eg, object obj in FIG. 5) to the image sensor (eg, image sensor S in FIG. 5). It includes at least 7 lenses (for example, lenses (L1, L2, L3, L4, L5, L6, L7) of FIG. 5) sequentially arranged along, and the first of the at least 7 lenses from the object side The disposed first lens (eg, the first lens L1 of FIG. 5 ) has a positive refractive power and includes a convex object-side surface (eg, the surface indicated by 'S2' in FIG. 5 ), , Among the at least seven lenses, the second lens disposed second from the object side (e.g., the second lens L2 in FIG. 5) has a negative refractive power and has a convex object-side surface (e.g., FIG. 5 A surface indicated by 'S4' of), and among the at least seven lenses, a third lens disposed third from the object side (eg, the third lens L3 in FIG. 5) is a convex object with positive refractive power. The fourth lens (eg, the fourth lens L4 in FIG. 5) including the side surface (eg, the surface indicated by 'S7' in FIG. 5) and disposed fourth from the object side among the at least seven lenses is It has a negative refractive power and includes a concave object-side surface (eg, a surface indicated by 'S9' in FIG. 5), and may satisfy the following [Conditional Expressions 1 and 2].

[conditional expression 1]

[conditional expression 2]

Here, 'Vd1' is the Abbe number of the first lens, 'f(L-1)' is the focal length of the second lens (eg, the sixth lens L6 in FIG. 5) from the image sensor side, and 'f (L)' may be the focal length of the first lens (eg, the seventh lens L7 of FIG. 5) from the image sensor side.

According to various embodiments, a lens assembly and/or an electronic device including the lens assembly may include an aperture disposed between the second lens and the third lens (eg, the image sensor side of the second lens L2 in FIG. 5 ( S5)) may further be included.

According to various embodiments, a lens assembly and/or an electronic device including the lens assembly may satisfy [Conditional Expression 3] below.

[conditional expression 3]

Here, 'bfl(LL)' is the distance between the first lens of the at least seven lenses from the image sensor side and the image sensor (eg, the imaging plane (img) of FIG. 5) along a direction parallel to the optical axis. This is the measured distance and the unit may be 'mm'.

According to various embodiments, the lens assembly and/or an electronic device including the lens assembly may satisfy the following [Conditional Expression 4].

[conditional expression 4]

Here, 'OAL' is the distance measured along the optical axis from the object-side surface of the first lens (e.g., the surface indicated by 'S2' in FIG. 5) to the imaging surface of the image sensor, and 'YIH' is the imaging surface. may be the maximum image height of (eg, Y-image height (YIH) in FIG. 6).

According to various embodiments, the lens assembly and/or an electronic device including the same may satisfy the following [Conditional Expression 5].

[conditional expression 5]

Here, 'Fno' may be the F number of the lens assembly.

According to various embodiments, the lens assembly and/or an electronic device including the same may satisfy the following [Conditional Expression 6].

[conditional expression 6]

Here, 'N5' may be a refractive index of a fifth lens disposed fifth from the object side among the at least seven lenses (eg, the fifth lens L5 of FIG. 5 ).

According to various embodiments, the lens assembly and/or an electronic device including the lens assembly may satisfy [Conditional Expression 7] below.

[conditional expression 7]

Here, 'f' may be the total focal length of the lens assembly, and 'f1' may be the focal length of the first lens.

According to various embodiments, a lens assembly and/or an electronic device including the lens assembly may satisfy [Conditional Expression 8] below.

[conditional expression 8]

Here, 'D1' is the thickness of the first lens on the optical axis, 'D2' is the thickness of the second lens on the optical axis, 'D3' is the thickness of the third lens on the optical axis, and 'D4' is the thickness of the third lens on the optical axis. May be the thickness of the fourth lens on the optical axis.

According to various embodiments, at least one of the at least seven lenses may be an aspherical lens including an inflection point (eg, an inflection point (IP) of FIG. 5 ).

According to various embodiments, at least the first lens among the at least seven lenses may include a glass material.

According to various embodiments, at least one of the at least seven lenses may be configured to move forward and backward along the optical axis direction.

According to various embodiments, a lens assembly and/or an electronic device including the lens assembly may further include the image sensor configured to receive light focused or guided through the at least seven lenses.

According to various embodiments, a lens assembly and/or an electronic device including the lens assembly is an optical member (for example, the optical member R of FIG. 5 ) disposed on an object side of the first lens and intersects the optical axis direction. The optical member receiving external light from one direction and reflecting or refracting it in a direction parallel to the optical axis may be further included.

According to various embodiments of the present disclosure, an electronic device (eg, the electronic devices 101, 102, 104, and 300 of FIGS. 1 to 4) is an image sensor from an object (eg, the object obj of FIG. 5) side. (Example: At least 7 lenses (eg, lenses L1, L2, L3 in FIG. 5) sequentially arranged along the optical axis (eg, optical axis O in FIG. , L4, L5, L6, L7)), the image sensor set to be aligned with the at least 7 lenses on the optical axis and receive light focused or guided by the at least 7 lenses, and in the image sensor A processor (for example, the processor 120 of FIG. 1 or the image signal processor 260 of FIG. 2 ) configured to acquire an image based on received light, and disposed first from the object side among the at least seven lenses The first lens (eg, the first lens L1 of FIG. 5) has a positive refractive power and includes a convex object-side surface (eg, the surface indicated by 'S2' in FIG. 5), Among the at least 7 lenses, the second lens disposed second from the object side (eg, the second lens L2 in FIG. 5) has negative refractive power and has a convex object side surface (eg, the second lens L2 in FIG. 5). A surface indicated by S4'), and among the at least seven lenses, a third lens disposed third from the object side (eg, the third lens L3 in FIG. 5) has a positive refractive power and is convex on the object side. (Example: the surface indicated by 'S7' in FIG. 5), and among the at least 7 lenses, a fourth lens disposed fourth from the object side (eg, the fourth lens L4 in FIG. 5) has negative refractive power While having a concave object side surface (eg, the surface indicated by 'S9' in FIG. 5), the following [Conditional Expressions 9 and 10] may be satisfied.

[conditional expression 9]

[conditional expression 10]

Here, 'Vd1' is the Abbe number of the first lens, 'f(L-1)' is the focal length of the second lens (eg, the sixth lens L6 in FIG. 5) from the image sensor side, and 'f (L)' may be the focal length of the first lens (eg, the seventh lens L7 of FIG. 5) from the image sensor side.

According to various embodiments, the electronic device may satisfy the following [Conditional Expression 11].

[conditional expression 11]

Here, 'bfl(LL)' is the distance between the first lens of the at least seven lenses from the image sensor side and the image sensor (eg, the imaging plane (img) of FIG. 5) along a direction parallel to the optical axis. This is the measured distance and the unit may be 'mm'.

According to various embodiments, the electronic device may satisfy the following [Conditional Expression 12].

[conditional expression 12]

Here, 'OAL' is the distance measured on the optical axis from the object-side surface of the first lens to the imaging surface of the image sensor, and 'YIH' is the maximum image height of the imaging surface (e.g., Y-image height (YIH in FIG. 6) )) can be.

According to various embodiments, an electronic device may satisfy the following [Conditional Expression 13].

[conditional expression 13]

Here, 'Fno' may be the F number of the lens assembly.

According to various embodiments, an electronic device may satisfy the following [Conditional Expression 14].

[conditional expression 14]

Here, 'N5' may be a refractive index of a fifth lens disposed fifth from the object side among the at least seven lenses (eg, the fifth lens L5 of FIG. 5 ).

According to various embodiments, the electronic device may satisfy the following [Conditional Expression 15].

[conditional expression 15]

Here, 'f' may be the total focal length of the lens assembly, and 'f1' may be the focal length of the first lens.

According to various embodiments, the electronic device may satisfy the following [Conditional Expression 16].

[conditional expression 16]

Here, 'D1' is the thickness of the first lens on the optical axis, 'D2' is the thickness of the second lens on the optical axis, 'D3' is the thickness of the third lens on the optical axis, and 'D4' is the thickness of the third lens on the optical axis. May be the thickness of the fourth lens in the optical axis.

Although the present disclosure has been described by way of example with respect to various embodiments, it will be understood that the various embodiments are for illustrative purposes rather than limiting the present invention. It will be apparent to those skilled in the art that various changes can be made in the form and detailed configuration without departing from the overall scope of the present disclosure, including the appended claims and equivalents thereof.

101, 102, 104, 300: electronic device
180, 280, 305, 312, 313: camera module
210, 400: lens assembly 230, S: image sensor
120: processor 260: image signal processor
L1, L2, L3, L4, L5, L6, L7: Lens(es)

Claims (20)

In the lens assembly,
It includes at least 7 lenses sequentially arranged along the optical axis direction from the object side to the image sensor side,
Among the at least seven lenses, a first lens disposed first from the object side has a positive refractive power and includes a convex object side surface,
Among the at least seven lenses, a second lens disposed second from the object side has a negative refractive power and includes a convex object side surface,
Among the at least seven lenses, a third lens disposed third from the object side has a positive refractive power and includes a convex object side surface,
A fourth lens disposed fourth from the object side among the at least seven lenses has a negative refractive power and includes a concave object-side surface,
A lens assembly that satisfies [Conditional Expressions 1 and 2] below.
[conditional expression 1]

[conditional expression 2]

Here, 'Vd1' is the Abbe number of the first lens, 'f(L-1)' is the focal length of the second lens from the image sensor side, and 'f(L)' is the focal length of the first lens from the image sensor side. is the distance.
According to claim 1,
The lens assembly further comprises a diaphragm disposed between the second lens and the third lens.
The lens assembly of claim 1, which satisfies [Conditional Expression 3] below.
[conditional expression 3]

Here, 'bfl(LL)' is the distance between the first lens of the at least seven lenses and the image sensor from the image sensor side, measured along a direction parallel to the optical axis, and has a unit of 'mm'.
The lens assembly of claim 1, which satisfies [Conditional Expression 4] below.
[conditional expression 4]

Here, 'OAL' is the distance measured on the optical axis from the object-side surface of the first lens to the imaging surface of the image sensor, and 'YIH' is the maximum image height of the imaging surface.
The lens assembly of claim 1, which satisfies the following [Conditional Expression 5].
[conditional expression 5]

Here, 'Fno' is the F number of the lens assembly.
The lens assembly according to claim 1, which satisfies the following [Conditional Expression 6].
[conditional expression 6]

Here, 'N5' is a refractive index of a fifth lens disposed fifth from the object side among the at least seven lenses.
The lens assembly of claim 1, which satisfies the following [Conditional Expression 7].
[conditional expression 7]

Here, 'f' is the total focal length of the lens assembly, and 'f1' is the focal length of the first lens.
The lens assembly of claim 1, which satisfies [Conditional Expression 8] below.
[conditional expression 8]

Here, 'D1' is the thickness of the first lens on the optical axis, 'D2' is the thickness of the second lens on the optical axis, 'D3' is the thickness of the third lens on the optical axis, and 'D4' is the thickness of the third lens on the optical axis. Is the thickness of the fourth lens on the optical axis.
The lens assembly of claim 1 , wherein at least one of the at least seven lenses is an aspherical lens including an inflection point.
The lens assembly of claim 1 , wherein at least the first lens among the at least seven lenses includes a glass material.
The lens assembly of claim 1 , wherein at least one of the at least seven lenses is configured to move forward and backward along the optical axis direction.
The lens assembly of claim 1 , further comprising the image sensor configured to receive the focused or guided light through the at least seven lenses.
The method of claim 1, further comprising an optical member disposed on the object side of the first lens and receiving external light in a first direction crossing the optical axis direction and reflecting or refracting it in a direction parallel to the optical axis. lens assembly.
In electronic devices,
at least seven lenses sequentially arranged along an optical axis direction from the object side to the image sensor side;
the image sensor aligned with the at least seven lenses on the optical axis and configured to receive light focused or guided by the at least seven lenses; and
A processor configured to acquire an image based on light received from the image sensor;
Among the at least seven lenses, a first lens disposed first from the object side has a positive refractive power and includes a convex object side surface,
Among the at least seven lenses, a second lens disposed second from the object side has a negative refractive power and includes a convex object side surface,
Among the at least seven lenses, a third lens disposed third from the object side has a positive refractive power and includes a convex object side surface,
A fourth lens disposed fourth from the object side among the at least seven lenses has a negative refractive power and includes a concave object-side surface,
An electronic device that satisfies [Conditional Expressions 9 and 10] below.
[conditional expression 9]

[conditional expression 10]

Here, 'Vd1' is the Abbe number of the first lens, 'f(L-1)' is the focal length of the second lens from the image sensor side, and 'f(L)' is the focal length of the first lens from the image sensor side. is the distance.
The electronic device according to claim 14, which satisfies [Conditional Expression 11] below.
[conditional expression 11]

Here, 'bfl(LL)' is the distance between the first lens and the image sensor from the image sensor side of the at least seven lenses, measured along a direction parallel to the optical axis, and has a unit of 'mm'.
The electronic device according to claim 14, which satisfies the following [Conditional Expression 12].
[conditional expression 12]

Here, 'OAL' is the distance measured on the optical axis from the object-side surface of the first lens to the imaging surface of the image sensor, and 'YIH' is the maximum image height of the imaging surface.
The electronic device according to claim 14, which satisfies the following [Conditional Expression 13].
[conditional expression 13]

Here, 'Fno' is the F number of the lens assembly.
The electronic device according to claim 14, which satisfies the following [Conditional Expression 14].
[conditional expression 14]

Here, 'N5' is a refractive index of a fifth lens disposed fifth from the object side among the at least seven lenses.
The electronic device according to claim 14, which satisfies the following [Conditional Expression 15].
[conditional expression 15]

Here, 'f' is the total focal length of the lens assembly, and 'f1' is the focal length of the first lens.
The electronic device according to claim 14, which satisfies [Conditional Expression 16] below.
[conditional expression 16]

Here, 'D1' is the thickness of the first lens on the optical axis, 'D2' is the thickness of the second lens on the optical axis, 'D3' is the thickness of the third lens on the optical axis, and 'D4' is the thickness of the third lens on the optical axis. Is the thickness of the fourth lens on the optical axis.

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