Optical system and electronic device comprising same

Abstract

According to an embodiment of the present disclosure, an electronic device comprising an optical system may be provided. The optical system comprises: a lens group including at least five lenses sequentially arranged along the optical axis in a direction from the object side to the image side, wherein the lenses include a first lens having positive refractive power and having a meniscus shape convex toward the object side, a second lens having negative refractive power, a third lens having refractive power, a fourth lens having positive refractive power and formed convex toward the image side, and a fifth lens having negative refractive power and formed convex toward the object side and concave toward the image side; an aperture disposed between the first lens and the third lens; and an image sensor including an imaging surface on which an image is formed. The effective diameter of the second lens may be smaller than the effective diameter of the object-side surface of the first lens.

Description

Optical system and electronic device including the same

[0001] The examples disclosed in this document relate to optical systems and electronic devices including the same.

[0002] Optical devices, such as cameras capable of capturing images or videos, have been widely used. While film-based optical devices were dominant in the past, recently, digital cameras and video cameras equipped with solid-state image sensors, such as CCD (charge coupled device) or CMOS (complementary metal-oxide semiconductor), have become widely popular. Optical devices employing solid-state image sensors (CCD or CMOS) are gradually replacing film-based optical devices because they make it easier to store, duplicate, and transfer images compared to film-based optical devices.

[0003] To acquire high-quality images and / or videos, an optical device may include an optical system (or optical system) composed of multiple lenses and an image sensor having a high pixel count. The optical system can acquire high-quality (high-resolution) images and / or videos by, for example, having a low F-number (Fno) and low aberration. To obtain a low F-number and low aberration—in other words, to obtain bright and high-resolution images—it is necessary to combine multiple lenses. The pixel count of an image sensor increases as it contains more pixels, and an image sensor with a higher pixel count can acquire high-resolution (high-resolution) images and / or videos. To implement a high-pixel image sensor within the limited mounting space of an electronic device, multiple very small pixels, for example, micrometer-sized pixels, may be arranged. Recently, image sensors containing tens of millions to hundreds of millions of micrometer-sized pixels are being installed in portable electronic devices such as smartphones and tablets. Such high-performance optical devices can have the effect of inducing users to purchase electronic devices.

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

[0005] According to one embodiment of the present disclosure, an electronic device comprising an optical system may be provided. The optical system may include a lens group comprising at least five lenses arranged sequentially along an optical axis in a direction from the subject side toward the image side, the lens group comprising a first lens having a positive refractive power and a meniscus shape convex toward the subject side, a second lens having a negative refractive power, a third lens having a refractive power, a fourth lens having a positive refractive power and formed convex toward the image side, and a fifth lens having a negative refractive power and a shape convex toward the subject side and concave toward the image side; an aperture disposed between the first lens and the third lens; and an image sensor comprising an image plane on which an image is formed. The effective diameter of the second lens may be smaller than the effective diameter of the subject side surface of the first lens. The optical system may satisfy the following [Equation 1] and [Equation 2].

[0006] [Equation 1]

[0007] (f / ImgH)*TTL < 3

[0008] [Equation 2]

[0009] BFL < 0.85mm

[0010] (Here, f(focal length) in [Equation 1] is the effective focal length of the optical system, ImgH is the height of the image sensor, TTL is the distance from the first lens to the imaging plane, and BFL in [Equation 2] is the distance from the image side surface of the fifth lens to the imaging plane.)

[0011] According to one embodiment of the present disclosure, an optical system may be provided. The optical system may include a lens group comprising at least five lenses arranged sequentially along an optical axis in a direction from the subject side toward the image side, the lens group comprising a first lens having a positive refractive power and a meniscus shape convex toward the subject side, a second lens having a negative refractive power, a third lens having a refractive power, a fourth lens having a positive refractive power and formed convex toward the image side, and a fifth lens having a negative refractive power and a shape convex toward the subject side and concave toward the image side, and an image sensor comprising an image plane on which an image is formed. The effective diameter of the second lens may be smaller than the effective diameter of the subject side surface of the first lens. The optical system may satisfy the following [Equation 1] and [Equation 2].

[0012] [Equation 1]

[0013] (f / ImgH)*TTL < 3

[0014] [Equation 2]

[0015] BFL < 0.85mm

[0016] (Here, f(focal length) in [Equation 1] is the effective focal length of the optical system, ImgH is the height of the image sensor, TTL is the distance from the first lens to the imaging plane, and BFL in [Equation 2] is the distance from the image side surface of the fifth lens to the imaging plane.)

[0017] FIG. 1 is a block diagram of an electronic device in a network environment according to one embodiment of the present disclosure.

[0018] FIG. 2 is a block diagram illustrating a camera module according to one embodiment of the present disclosure.

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

[0020] FIG. 4 is a rear perspective view of an electronic device according to one embodiment of the present disclosure.

[0021] FIG. 5 is a cross-sectional view showing a part of an optical system and a part of a lens barrel according to one embodiment of the present disclosure.

[0022] FIG. 6a is a configuration diagram showing a lens according to one embodiment of the present disclosure.

[0023] FIG. 6b is a graph showing the spherical aberration of the optical system of FIG. 6a according to one embodiment disclosed in this document.

[0024] FIG. 6c is a graph showing the astigmatism of the optical system of FIG. 6a according to one embodiment disclosed in this document.

[0025] FIG. 6d is a graph showing the distortion rate of the optical system of FIG. 6a according to one embodiment disclosed in this document.

[0026] FIG. 7a is a configuration diagram showing a lens according to one embodiment of the present disclosure.

[0027] FIG. 7b is a graph showing the spherical aberration of the optical system of FIG. 7a according to one embodiment disclosed in this document.

[0028] FIG. 7c is a graph showing the astigmatism of the optical system of FIG. 7a according to one embodiment disclosed in this document.

[0029] FIG. 7d is a graph showing the distortion rate of the optical system of FIG. 7a according to one embodiment disclosed in this document.

[0030] FIG. 8a is a schematic diagram showing an optical system according to one embodiment of the present disclosure.

[0031] FIG. 8b is a graph showing the spherical aberration of the optical system of FIG. 8a according to one embodiment disclosed in this document.

[0032] FIG. 8c is a graph showing the astigmatism of the optical system of FIG. 8a according to one embodiment disclosed in this document.

[0033] FIG. 8d is a graph showing the distortion rate of the optical system of FIG. 8a according to one embodiment disclosed in this document.

[0034] FIG. 9a is a configuration diagram showing an optical system according to one embodiment of the present disclosure.

[0035] FIG. 9b is a graph showing the spherical aberration of the optical system of FIG. 9a according to one embodiment disclosed in this document.

[0036] FIG. 9c is a graph showing the astigmatism of the optical system of FIG. 9a according to one embodiment disclosed in this document.

[0037] FIG. 9d is a graph showing the distortion rate of the optical system of FIG. 9a according to one embodiment disclosed in this document.

[0038] FIG. 10a is a schematic diagram showing an optical system according to one embodiment of the present disclosure.

[0039] FIG. 10b is a graph showing the spherical aberration of the optical system of FIG. 10a according to one embodiment disclosed in this document.

[0040] FIG. 10c is a graph showing the astigmatism of the optical system of FIG. 10a according to one embodiment disclosed in this document.

[0041] FIG. 10d is a graph showing the distortion rate of the optical system of FIG. 10a according to one embodiment disclosed in this document.

[0042] FIG. 11a is a schematic diagram showing an optical system according to one embodiment of the present disclosure.

[0043] FIG. 11b is a graph showing the spherical aberration of the optical system of FIG. 11a according to one embodiment disclosed in this document.

[0044] FIG. 11c is a graph showing the astigmatism of the optical system of FIG. 11a according to one embodiment disclosed in this document.

[0045] FIG. 11d is a graph showing the distortion rate of the optical system of FIG. 11a according to one embodiment disclosed in this document.

[0046] FIG. 12a is a configuration diagram showing an optical system according to one embodiment of the present disclosure.

[0047] FIG. 12b is a graph showing the spherical aberration of the optical system of FIG. 12a according to one embodiment disclosed in this document.

[0048] FIG. 12c is a graph showing the astigmatism of the optical system of FIG. 12a according to one embodiment disclosed in this document.

[0049] FIG. 12d is a graph showing the distortion rate of the optical system of FIG. 12a according to one embodiment disclosed in this document.

[0050] Throughout the attached drawings, similar parts, configurations, and / or structures may be assigned similar reference numbers.

[0051] FIG. 1 is a block diagram of an electronic device (101) in a network environment (100) according to one embodiment disclosed in this document. Referring to FIG. 1, in the network environment (100), the electronic device (101) may communicate with an electronic device (102) through a first network (198) (e.g., a short-range wireless communication network) or may communicate with at least one of an electronic device (104) or a server (108) through a second network (199) (e.g., a long-range wireless communication network). According to one embodiment, the electronic device (101) may communicate with the electronic device (104) through a server (108). According to one embodiment, the electronic device (101) may include a processor (120), memory (130), input module (150), sound output module (155), display module (160), audio module (170), sensor module (176), interface (177), connection terminal (178), haptic module (179), camera module (180), power management module (188), battery (189), communication module (190), subscriber identification module (196), or antenna module (197). In one embodiment, at least one of these components (e.g., connection terminal (178)) may be omitted from the electronic device (101), or one or more other components may be added. In one embodiment, some of these components (e.g., sensor module (176), camera module (180), or antenna module (197)) may be integrated into a single component (e.g., display module (160)).

[0052] The processor (120) can control at least one other component (e.g., hardware or software component) of the electronic device (101) connected to the processor (120) by executing software (e.g., program (140)), for example, and can perform various data processing or operations. According to one embodiment, as at least part of the data processing or operations, the processor (120) can store commands or data received from other components (e.g., sensor module (176) or communication module (190)) in volatile memory (132), process the commands or data stored in volatile memory (132), and store the resulting data in non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., central processing unit or application processor) or an auxiliary processor (123) that can operate independently or together with it (e.g., graphics processing unit, neural processing unit (NPU), image signal processor, sensor hub processor, or communication processor). For example, if the electronic device (101) includes a main processor (121) and an auxiliary processor (123), the auxiliary processor (123) may be configured to use lower power than the main processor (121) or to be specialized for a designated function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as part thereof.

[0053] The auxiliary processor (123) may control at least some of the functions or states associated with at least one component of the electronic device (101) (e.g., display module (160), sensor module (176), or communication module (190)) on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. According to one embodiment, the auxiliary processor (123) (e.g., image signal processor or communication processor) may be implemented as part of another functionally related component (e.g., camera module (180) or communication module (190)). According to one embodiment, the auxiliary processor (123) (e.g., neural network processing unit) may include a hardware structure specialized for processing an artificial intelligence model. The artificial intelligence model may be generated through machine learning. Such learning may be performed, for example, on the electronic device (101) itself where the artificial intelligence model is executed, or through a separate server (e.g., server (108)). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model may include a plurality of artificial neural network layers.An artificial neural network may be a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to the hardware structure, the artificial intelligence model may include a software structure, either additionally or substantially.

[0054] The memory (130) can store various data used by at least one component of the electronic device (101) (e.g., processor (120) or sensor module (176)). The data may include, for example, input data or output data for software (e.g., program (140)) and related commands. The memory (130) may include volatile memory (132) or non-volatile memory (134).

[0055] The program (140) may be stored as software in memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0056] The input module (150) can receive commands or data to be used for a component of the electronic device (101) (e.g., processor (120)) from outside the electronic device (101) (e.g., user). The input module (150) may include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0057] The sound output module (155) can output a sound signal to the outside of the electronic device (101). The sound output module (155) may include, for example, a speaker or a receiver. The speaker may be used for general purposes, such as multimedia playback or recording playback. The receiver may be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part thereof.

[0058] The display module (160) can visually provide information to an external (e.g., user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling said device. According to one embodiment, the display module (160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of the force generated by said touch.

[0059] The audio module (170) can convert sound into an electrical signal or, conversely, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150) or output sound through the sound output module (155) or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphones) that is directly or wirelessly connected to the electronic device (101).

[0060] The sensor module (176) can detect the operating state of the electronic device (101) (e.g., power or temperature) or the external environmental state (e.g., user state) and generate an electrical signal or data value corresponding to the detected state. According to one embodiment, the sensor module (176) may include, for example, a gesture sensor, a gyroscope sensor, a barometric pressure sensor, a magnetic sensor, an accelerometer sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biosensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0061] The interface (177) may support one or more specified protocols that can be used for the electronic device (101) to be connected directly or wirelessly to an external electronic device (e.g., electronic device (102)). According to one embodiment, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0062] The connection terminal (178) may include a connector through which the electronic device (101) can be physically connected to an external electronic device (e.g., electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0063] The haptic module (179) can convert an electrical signal into a mechanical stimulus (e.g., vibration or movement) or an electrical stimulus that can be perceived by the user through tactile or kinesthetic senses. According to one embodiment, the haptic module (179) may include, for example, a motor, a piezoelectric element, or an electric stimulation device.

[0064] The camera module (180) can capture still images and video. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0065] The power management module (188) can manage power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented, for example, as at least part of a power management integrated circuit (PMIC).

[0066] The battery (189) can supply power to at least one component of the electronic device (101). According to one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0067] The communication module (190) can support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between an electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may include one or more communication processors that operate independently of the processor (120) (e.g., application processor) and support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (190) may include a wireless communication module (192) (e.g., cellular communication module, short-range wireless communication module, or GNSS (globjal navigation satellite system) communication module) or a wired communication module (194) (e.g., LAN (local area network) communication module, or power line communication module). The corresponding communication module among these communication modules can communicate with an external electronic device through a first network (198) (e.g., a short-range communication network such as Bluetooth, WiFi (wireless fidelity) direct, or IrDA (infrared data association)) or a second network (199) (e.g., a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules may be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can identify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) using subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module (196).

[0068] The wireless communication module (192) can support 5G networks and next-generation communication technologies following 4G networks, for example, new radio access technology. The NR access technology can support high-speed transmission of high-capacity data (enhanced mobile broadband eMBB), minimization of terminal power and connection of multiple terminals (massive machine type communications mMTC), or high reliability and low latency (ultra-reliable and low-latency communications URLLC). The wireless communication module (192) can support a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate, for example. The wireless communication module (192) can support various technologies for securing performance in the high-frequency band, such as beamforming, massive MIMO (multiple-input and multiple-output), full-dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large-scale antenna. The wireless communication module (192) can support various requirements specified by the electronic device (101), an external electronic device (e.g., electronic device (104)), or a network system (e.g., a second network (199)). According to one embodiment, the wireless communication module (192) may support a Peak data rate (e.g., 20 Gbps or more) for eMBB realization, loss coverage (e.g., 164 dB or less) for mMTC realization, or U-plane latency (e.g., downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) for URLLC realization.

[0069] An antenna module (197) can transmit a signal or power to or from an external source (e.g., an external electronic device). According to one embodiment, the antenna module may include an antenna comprising a radiator made of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). According to one embodiment, the antenna module (197) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as a first network (198) or a second network (199), may be selected from the plurality of antennas, for example, by a communication module (190). The signal or power may be transmitted or received between the communication module (190) and an external electronic device through the selected at least one antenna. According to one embodiment, in addition to the radiator, other components (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as part of the antenna module (197).

[0070] According to one embodiment, the antenna module (197) may form a mmWave antenna module. According to one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent to a first surface (e.g., bottom surface) of the printed circuit board and capable of supporting a specified high frequency band (e.g., mmWave band), and a plurality of antennas (e.g., array antennas) disposed on or adjacent to a second surface (e.g., top surface or side surface) of the printed circuit board and capable of transmitting or receiving a signal of the specified high frequency band.

[0071] At least some of the above components can be connected to each other via a communication method between peripheral devices (e.g., bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)) and exchange signals (e.g., commands or data) with each other.

[0072] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) through a server (108) connected to a second network (199). Each of the external electronic devices (102 or 104) may be the same or a different type of device as the electronic device (101). According to one embodiment, all or part of the operations performed on the electronic device (101) may be performed on one or more of the external electronic devices (102, 104 or 108). For example, if the electronic device (101) needs to perform a function or service automatically or in response to a request from a user or another device, the electronic device (101) may request one or more external electronic devices to perform at least part of the function or service instead of performing the function or service itself or additionally. One or more external electronic devices that receive the above request may execute at least part of the requested function or service, or additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may provide the result as is or additionally processed as at least part of the response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device (101) may provide ultra-low latency services using, for example, distributed computing or mobile edge computing. In one embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server using machine learning and / or neural networks. According to one embodiment, the external electronic device (104) or the server (108) may be included within the second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0073] FIG. 2 is a block diagram (200) illustrating a camera module (290) (e.g., camera module (180) of FIG. 1) according to one embodiment of the present disclosure. Referring to FIG. 2, the camera module (290) may include a lens assembly (280), a flash (220), an image sensor (230), an image stabilizer (240), a memory (250) (e.g., a buffer memory), or an image signal processor (260). In one embodiment, the lens assembly (280) may include an image sensor (230). The lens assembly (280) may collect light emitted from a subject that is the target of image capture. The lens assembly (280) may include one or more lenses. According to one embodiment, the camera module (290) may include a plurality of lens assemblies (280). In this case, the camera module (290) may form, for example, a dual camera, a 360-degree camera, or a spherical camera. Some of the plurality of lens assemblies (280) may have the same lens properties (e.g., angle of view, focal length, F-number, or optical zoom), or at least one optical system may have one or more lens properties different from the lens properties of other optical systems. The lens assembly (280) may include, for example, a wide-angle lens or a telephoto lens.

[0074] A flash (220) may emit light used to enhance light emitted or reflected from a subject. According to one embodiment, the flash (220) may include one or more light-emitting diodes (e.g., RGB (red-green-blue) LED, white LED, infrared LED, or ultraviolet LED), or a xenon lamp. An image sensor (230) may acquire an image corresponding to the subject by converting light emitted or reflected from the subject and transmitted through a lens assembly (280) into an electrical signal. According to one embodiment, the image sensor (230) may include, for example, one image sensor selected from image sensors with different properties such as an RGB sensor, a BW (black and white) sensor, an IR sensor, or a UV sensor, a plurality of image sensors having the same properties, or a plurality of image sensors having different properties. Each image sensor included in the image sensor (230) may be implemented using, for example, a CCD (charged coupled device) sensor or a CMOS (complementary metal oxide semiconductor) sensor.

[0075] The image stabilizer (240) can move at least one lens or image sensor (230) included in the lens assembly (280) in a specific direction or control the operational characteristics of the image sensor (230) (e.g., adjusting read-out timing, etc.) in response to the movement of the camera module (290) or the electronic device (101) including the same. This allows for compensating for at least some of the negative effects caused by the movement on the image being captured. According to one embodiment, the image stabilizer (240) can detect the movement of the camera module (290) or the electronic device (e.g., the electronic device (101) of FIG. 1) using a gyroscope sensor (not shown) or an accelerometer sensor (not shown) placed inside or outside the camera module (290). According to one embodiment, the image stabilizer (240) can be implemented, for example, as an optical image stabilizer. The memory (250) may temporarily store at least a portion of an image acquired through the image sensor (230) for the next image processing operation. For example, if image acquisition by the shutter is delayed or multiple images are acquired at high speed, the acquired original image (e.g., a Bayer-patterned image or a high-resolution image) is stored in the memory (250), and a corresponding copy image (e.g., a low-resolution image) can be previewed through the display module (160) of FIG. 1. Subsequently, when a specified condition is satisfied (e.g., user input or system command), at least a portion of the original image stored in the memory (250) may be acquired and processed by, for example, an image signal processor (260). According to one embodiment, the memory (250) may be configured as at least a portion of the memory (e.g., the memory (130) of FIG. 1) or as a separate memory that operates independently thereof.

[0076] The image signal processor (260) can perform one or more image processing operations on an image acquired through the image sensor (230) or an image stored in memory (250). The one or more image processing operations may include, for example, depth map generation, 3D modeling, panorama generation, feature point extraction, image synthesis, or image compensation (e.g., noise reduction, resolution adjustment, brightness adjustment, blurring, sharpening, or softing). Additionally or generally, the image signal processor (260) can perform control (e.g., exposure time control, or readout timing control, etc.) over at least one of the components included in the camera module (290) (e.g., image sensor (230)). An image processed by the image signal processor (260) may be stored back in memory (250) for further processing or provided to an external component of the camera module (290) (e.g., memory (130) of FIG. 1, display module (160), electronic device (102), electronic device (104), or server (108)). According to one embodiment, the image signal processor (260) may be composed of at least part of a processor (e.g., processor (120) of FIG. 1) or may be composed of a separate processor that operates independently of the processor (120). If the image signal processor (260) is composed of a separate processor from the processor (120), at least one image processed by the image signal processor (260) may be displayed through the display module (160) as is or after undergoing additional image processing by the processor (120).

[0077] According to one embodiment, an electronic device (e.g., the electronic device (101) of FIG. 1) may include a plurality of camera modules (290) each having different attributes or functions. In this case, for example, at least one of the plurality of camera modules (290) may be a wide-angle camera and at least another may be a telephoto camera. Similarly, at least one of the plurality of camera modules (290) may be a front camera and at least another may be a rear camera.

[0078] FIG. 3 is a front perspective view of an electronic device according to one embodiment disclosed in this document. FIG. 4 is a rear perspective view of an electronic device according to one embodiment disclosed in this document.

[0079] The configuration of the electronic device (101) of FIGS. 3 and 4 may be the same as, in whole or in part, the configuration of the electronic device (101) of FIG. 1.

[0080] Referring to FIGS. 3 and 4, an electronic device (101) according to one embodiment may include a housing (210) comprising a first surface (or front) (210A), a second surface (or rear) (210B), and a side (210C) surrounding the space between the first surface (210A) and the second surface (210B). In one embodiment (not shown), the housing (210) may refer to a structure forming part of the first surface (210A) of FIG. 3, the second surface (210B) and the side (210C) of FIG. 4. According to one embodiment, the first surface (210A) may be formed by a front plate (202) (e.g., a glass plate or a polymer plate having various coating layers) in which at least a portion is substantially transparent. The second surface (210B) may be formed by a rear plate (211) that is substantially opaque. The rear plate (211) may be formed, for example, by coated or colored glass, ceramic, polymer, metal (e.g., aluminum, stainless steel (STS), or magnesium), or a combination of at least two of the above materials. The side (210C) may be formed by a side structure (or "side bezel structure") (218) comprising metal and / or polymer, which is combined with the front plate (202) and the rear plate (211). In one embodiment, the rear plate (211) and the side structure (218) may be formed integrally and may comprise the same material (e.g., a metallic material such as aluminum).

[0081] Although not illustrated, the front plate (202) may include region(s) that are curved and seamlessly extended toward the rear plate (211) at least a portion of the edge. In one embodiment, the front plate (202) (or the rear plate (211)) may include only one of the regions that are curved and extended toward the rear plate (211) (or the front plate (202)) at one edge of the first surface (210A). According to the embodiment, the front plate (202) or the rear plate (211) may be substantially flat, in which case it may not include the curved and extended region. If it includes the curved and extended region, the thickness of the electronic device (101) in the portion containing the curved and extended region may be smaller than the thickness of the other portion.

[0082] According to one embodiment, the electronic device (101) may include one or more of a display (201), an audio module (not shown) including at least one acoustic hole (203, 207, 214) (e.g., audio module (170) of FIG. 1), a sensor module (204) (e.g., sensor module (176) of FIG. 1), a camera module (205, 212, 213) (e.g., camera module (180) of FIG. 1), a key input device (217) (e.g., input module (150) of FIG. 1), or a connector hole (208, 209) (e.g., connection terminal (178) of FIG. 1). In one embodiment, the electronic device (101) may omit at least one of the components (e.g., key input device (217), or light-emitting element (206)) or additionally include other components.

[0083] According to one embodiment, the display (201) may be visually exposed, for example, through a significant portion of the front plate (202). In one embodiment, at least a portion of the display (201) may be visually exposed through the front plate (202) forming the first surface (210A) or through a portion of the side (210C). In one embodiment, the corners of the display (201) may be formed to be generally identical to the adjacent outer shape of the front plate (202). In one embodiment (not shown), in order to expand the area where the display (201) is visually exposed, the gap between the outer edge of the display (201) and the outer edge of the front plate (202) may be formed to be generally identical.

[0084] In one embodiment (not shown), a recess or opening is formed in a part of the screen display area of ​​the display (201), and at least one of an acoustic hole (214), a sensor module (204), a camera module (205), and a light-emitting element (206) may be included that are aligned with the recess or the opening. In one embodiment (not shown), at least one of an acoustic hole (214), a sensor module (204), a camera module (205), a fingerprint sensor (not shown), and a light-emitting element (206) may be included on the back surface of the screen display area of ​​the display (201). In one embodiment (not shown), the display (201) may be combined with or adjacent to a touch detection circuit, a pressure sensor capable of measuring the intensity (pressure) of a touch, and / or a digitizer that detects a magnetic field type stylus pen. In one embodiment, at least a portion of the sensor module (204) and / or at least a portion of the key input device (217) may be placed on the side (210C).

[0085] According to one embodiment, an audio module (not shown) may include a microphone hole (203) and acoustic holes (207, 214). A microphone for acquiring external sound may be placed inside the microphone hole (203), and in one embodiment, a plurality of microphones may be placed to detect the direction of sound. According to one embodiment, the acoustic holes (207, 214) may include an external acoustic hole (207) and a receiver hole (214) for communication. In one embodiment, the acoustic holes (207, 214) and the microphone hole (203) may be implemented as a single hole, or a speaker may be included in the audio module without acoustic holes (207, 214) (e.g., a piezo speaker).

[0086] According to one embodiment, the sensor module (204) may generate an electrical signal or data value corresponding to an internal operating state of the electronic device (101) or an external environmental state. The sensor module (204) may include, for example, a first sensor module (204) (e.g., a proximity sensor) and / or a second sensor module (not shown) (e.g., a fingerprint sensor) disposed on a first surface (210A) of the housing (210). According to an embodiment, an additional sensor module may be disposed on a second surface (210B) of the housing (210). The fingerprint sensor (not shown) may be disposed on the second surface (210B) or side (210C) as well as on the first surface (210A) (e.g., a display (201)) of the housing (210). The electronic device (101) may further include at least one of, for example, a gesture sensor, a gyroscope sensor, a barometric pressure sensor, a magnetic sensor, an accelerometer sensor, a grip sensor, a color sensor, an IR (infrared) sensor, a biosensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0087] According to one embodiment, the camera modules (205, 212, 213) may include a first camera module (205) facing a first surface (210A) of the electronic device (101), and a second camera module (212) and / or a flash (213) facing a second surface (210B). For example, the first camera module (205) and / or the second camera module (212) may include one or more lenses, an image sensor and / or an image signal processor. According to one embodiment, some of the camera modules (205, 212), including some camera modules (205) and / or some sensor modules (e.g., sensor module (204)), may be positioned so as to be exposed to the outside through at least a portion of the display (201). According to one embodiment, the first camera module (205) may include a punch hole camera positioned inside a hole or recess formed on the back surface of the display (201). For example, the first camera module (205) can receive at least a portion of light incident toward the first surface (210A) (or front) of the electronic device (101) through the display (201) inside the electronic device (101). According to one embodiment, the first camera module (205) and / or sensor module (204) may be positioned in the internal space of the electronic device (101) so as to be in contact with the external environment through a transparent area up to the front plate (202) of the display (201). Additionally, some sensor modules (204) may be positioned in the internal space of the electronic device so as to perform their functions without being visually exposed through the front plate (202).

[0088] According to one embodiment, the second camera module (212) may be placed inside the housing (210) such that the lens is exposed to the second side (210B) (or rear) of the electronic device (101). For example, the camera module (212) may be electrically connected to a printed circuit board. For example, the flash (213) may include a light-emitting diode or a xenon lamp. In one embodiment, one or more lenses (infrared camera, wide-angle and telephoto lenses) and image sensors may be placed on one side of the electronic device (101). In one embodiment, the flash (213) may emit infrared light. For example, infrared light emitted from the flash (213) and reflected by a subject may be received through a sensor module (not shown) placed on the second side (210B) of the housing (210). An electronic device (101) or a processor (e.g., the processor (180) of FIG. 1) can detect depth information of a subject based on the time when infrared light is received from the sensor module.

[0089] The camera modules (205, 212, 213) are not limited to the above structure and can be designed in various ways, such as by mounting only some camera modules or adding new camera modules, depending on the structure of the electronic device (101).

[0090] According to one embodiment, the electronic device (101) may include a plurality of camera modules (e.g., dual cameras, or triple cameras) each having different attributes (e.g., angle of view) or functions. For example, a plurality of camera modules (205, 212) including lenses having different angles of view may be configured, and the electronic device (101) may control the camera modules (205, 212) to change the angle of view of the camera modules (205, 212) performed in the electronic device (101) based on a user's selection. For example, at least one of the plurality of camera modules (205, 212) may be a wide-angle camera and at least another may be a telephoto camera. Similarly, at least one of the plurality of camera modules (205, 212) may be a front camera and at least another may be a rear camera. Additionally, the plurality of camera modules (205, 212) may include at least one of a wide-angle camera, a telephoto camera, or an IR (infrared) camera (e.g., a TOF (time of flight) camera, a structured light camera). According to one embodiment, the IR camera may operate as at least part of a sensor module. For example, the TOF camera may operate as at least part of a sensor module (not shown) for detecting the distance to a subject.

[0091] According to one embodiment, a key input device (217) may be disposed on a side (210C) of the housing (210). In one embodiment, the electronic device (101) may not include some or all of the aforementioned key input devices (217), and the key input devices (217) that are not included may be implemented in other forms, such as soft keys, on the display (201). In one embodiment, the key input device may include a sensor module disposed on a second side (210B) of the housing (210).

[0092] According to one embodiment, the light-emitting element (206) may be disposed, for example, on a first surface (210A) of a housing (210). The light-emitting element (206) may, for example, provide state information of an electronic device (101) in the form of light. In one embodiment, the light-emitting element (206) may, for example, provide a light source linked to the process of a camera module (205). The light-emitting element (206) may include, for example, an LED, an IR LED, and a xenon lamp.

[0093] According to one embodiment, the connector holes (208, 209) may include a first connector hole (208) capable of receiving a connector (e.g., USB connector) for transmitting and receiving power and / or data with an external electronic device, and a second connector hole (e.g., earphone jack) (209) capable of receiving a connector for transmitting and receiving audio signals with an external electronic device.

[0094] [Example 1]

[0095] FIG. 5 is a cross-sectional view showing a part of an optical system and a part of a lens barrel according to one embodiment of the present disclosure. FIG. 6a is a configuration diagram showing a lens according to one embodiment of the present disclosure. FIG. 6b is a graph showing the spherical aberration of the optical system of FIG. 6a according to one embodiment disclosed in this document. FIG. 6c is a graph showing the astigmatism of the optical system of FIG. 6a according to one embodiment disclosed in this document. FIG. 6d is a graph showing the distortion rate of the optical system of FIG. 6a according to one embodiment disclosed in this document.

[0096] In the present disclosure, the description of the optical system (300) of FIGS. 5 and 6a may be applied in the same or similarly to the optical system (400) of FIGS. 7a, the optical system (500) of FIGS. 8a, the optical system (600) of FIGS. 9a, the optical system (700) of FIGS. 10a, the optical system (800) of FIGS. 11a, and the optical system (900) of FIGS. 12a.

[0097] Referring to FIGS. 5 through 6d, in one embodiment, an electronic device (e.g., the electronic device (101) of FIG. 1, FIG. 3 and FIG. 4) may include an optical system (300). An optical system according to one embodiment of the present disclosure (e.g., the optical system (300) of FIG. 6a, the optical system (400) of FIG. 7a, the optical system (500) of FIG. 8a, the optical system (600) of FIG. 9a, the optical system (700) of FIG. 10a, the optical system (800) of FIG. 11a, the optical system (900) of FIG. 12a) may constitute at least a part of a camera module of the electronic device (101) (e.g., the camera module (180) of FIG. 1, the camera module (290) of FIG. 2, the camera module (205) of FIG. 3 and / or the camera module (212) of FIG. 4). According to one embodiment, an electronic device (101) to which an optical system (300, 400, 500, 600, 700, 800, 900) according to one embodiment of the present disclosure is applied may include various electronic devices including a camera module (e.g., tablet PC, drone), and wearable electronic devices formed to be wearable on various body parts such as a user's wrist or face (e.g., smart watch, smart glasses).

[0098] In one embodiment, the electronic device (101) may include a front camera (e.g., the camera module (290) of FIG. 2 and / or the first camera module (205) of FIG. 3). According to one embodiment, an optical system (300) may be included in the front camera of the electronic device (101) (e.g., the first camera module (205) of FIG. 3). According to one embodiment, the front camera (e.g., the first camera module (205) of FIG. 3) containing the optical system (300) may be a camera (e.g., under display camera (UDC), hole in display (HID)) positioned below (or behind) the display (201). The display (201) may include a first surface (201a) (or front) that is visually exposed to the outside of the electronic device (101) and a second surface (201b) (or back) opposite the first surface (201a). In the present disclosure, according to one embodiment, the optical system (300) being positioned below the display (201) may mean that the optical system (300) faces the back surface (201b) of the display (201). In one embodiment, the electronic device (101) may include a rear camera (e.g., the camera module (290) of FIG. 2 and / or the second camera module (212) of FIG. 4). According to one embodiment, the optical system (300) may be included in the rear camera (e.g., the second camera module (212) of FIG. 4) of the electronic device (101).

[0099] Referring to FIGS. 5 and FIGS. 6a, according to one embodiment, the optical system (300) may include a lens barrel (10), a lens group (G) comprising a plurality (e.g., at least 5) of lenses (L1, L2, L3, L4, L5) (e.g., the lens assembly (280) of FIG. 2), an aperture (sto) and / or an image sensor (IS). According to one embodiment, the lenses (L1, L2, L3, L4, L5) of the lens group (G), the aperture (sto), and / or the image sensor (IS) may be substantially aligned on an optical axis (OI).

[0100] For example, the optical system (300) may be configured as an optical system (e.g., a direct optical system) in which the path of incident light reaching the image sensor (IS) is formed as a straight line, but this is not limited thereto, and may be configured as a curved optical system in which the incident light is reflected / refracted at least once and reaches the image sensor (IS) if a reflective member (e.g., a prism, a mirror) is included.

[0101] In one embodiment, the phrases “arranged on an optical axis (OI) extending from the object side to the image side” or “aligned along the optical axis (OI)” may refer to lenses (L1, L2, L3, L4, L5) being arranged sequentially from the object side toward the image sensor (IS). In the embodiments described below, the ordinal numbers “first,” “second,” “third,” “fourth,” and “fifth” assigned to the lenses (L1, L2, L3, L4, L5) may refer to the order in which they are arranged in the direction toward the image sensor (IS) from the object side. In one embodiment, the first lens (L1) may be referred to as the "first lens on the subject side" or the "lens positioned furthest from the image sensor (IS)," and the fifth lens (L5) may be referred to as the "first lens on the image sensor (IS) side" or the "lens positioned closest to the image sensor (IS)." In one embodiment, the image sensor (IS) (e.g., the imaging plane (img)) may be aligned facing the lenses (L1, L2, L3, L4, L5) on the optical axis (OI). The imaging plane (img) may receive or detect light aligned or focused by the lenses (L1, L2, L3, L4, L5), for example.

[0102] Referring to FIG. 5, according to one embodiment, the optical system (300) (e.g., UDC (under display camera), HID (hole in display)) may further include a lens barrel (10) disposed within an electronic device (101). According to one embodiment, the lens barrel (10) may be formed to receive and support the lenses (L1, L2, L3, L4, L5) of the lens group (G) inside. According to one embodiment, the lens barrel (10) may be configured to support the edge region of the subject side surface (S2) of the first lens (L1). For example, the lens barrel (10) may include frames (e.g., the frame (11) of FIG. 5) for holding or supporting the lenses (L1, L2, L3, L4, L5) in their designated positions (or design positions). For example, frames (e.g., frames (11) of FIG. 5) may be formed to support the edges of the subject side and / or image side of the lenses (L1, L2, L3, L4, L5) of the lens group (G) on the inside of the lens barrel (10). The frames (e.g., frames (11) of FIG. 5) may be connected to the lens barrel (10) or formed integrally with the lens barrel (10).

[0103] According to one embodiment, the optical system (300) may comprise a camera (e.g., under display camera (UDC), hole in display (HID)) positioned below the display (201) of the electronic device (101). According to one embodiment, with reference to FIG. 5, the optical system (300) according to one embodiment of the present disclosure may be positioned to receive light from outside the electronic device (101) through a receiving portion (or camera exposure area) of the display of the electronic device (101) (e.g., the display module (160) of FIG. 1 and the display (201) of FIG. 3 and FIG. 4). Here, the receiving portion (or camera exposure area) may be a through hole (e.g., a punch-hole or perforated hole) formed in a part of the display (201). For example, the receiving portion may include a through hole or recess formed in at least a part of a layer (219) positioned on the back surface (201b) of the display (201), as illustrated in FIG. 5. However, the configuration in which the receiving portion is formed is not limited, and the receiving portion may include a through hole or recess formed in at least a part of a plurality of layers (e.g., cover window, display panel and / or support panel) constituting the display (201). In one embodiment, the receiving portion of the display (201) may be placed in an active area (or screen area) of the display (201) where an image is displayed, or in an inactive area of ​​the display (201) that is placed around the active area and where an image is not displayed. According to one embodiment, the diameter (HD) of the portion of the lens barrel (10) facing the subject side surface (S2) of the first lens (L1) may be smaller than the diameter of the receiving portion.

[0104] According to one embodiment, the lenses (L1, L2, L3, L4, L5) of the lens group (G) of the optical system (300) may be arranged on an optical axis (OI) extending from the object side (or external object, obj) to the image side. According to one embodiment, the optical system (300) may be positioned on an optical axis (OI) passing through the centers of a plurality of lenses (L1, L2, L3, L4, L5) from the object side (or external object) to the image side. In describing the configuration of each lens (L1, L2, L3, L4, L5) below, for example, the object side may indicate the direction where the object (O) is located, and the image side may indicate the direction where the image plane (img) where the image is formed is located.

[0105] According to one embodiment, the lenses (L1, L2, L3, L4, L5) may each include a 'subject side surface' which is a surface facing the subject (O) and an 'image side surface' which is a surface facing the image (or image sensor (IS)). Referring to FIGS. 6a, 7a, 8a, 9a, 10a, and 12a, for example, the first lens (L1) may include a subject side surface (S2) and an image side surface (S3). The second lens (L2) may include a subject side surface (S4) and an image side surface (S5). The third lens (L3) may include a subject side surface (S7) and an image side surface (S8). The fourth lens (L4) may include a subject side surface (S9) and an image side surface (S10). The fifth lens (L5) may include a subject side surface (S11) and an image side surface (S12). Referring to FIG. 11a, for example, the first lens (L1) may include a subject side surface (S2) and an image side surface (S3). The second lens (L2) may include a subject side surface (S4) and an image side surface (S5). The third lens (L3) may include a subject side surface (S6) and an image side surface (S7). The fourth lens (L4) may include a subject side surface (S8) and an image side surface (S9). The fifth lens (L5) may include a subject side surface (S10) and an image side surface (S11).

[0106] According to one embodiment, the lenses (L1, L2, L3, L4, L5) may be formed from a synthetic resin (e.g., plastic) material. However, the number and material of the lenses of the lens group (G) of the present disclosure are not limited, and, for example, may include four or fewer lenses or additional lenses. According to one embodiment, the lenses (L1, L2, L3, L4, L5) may be formed from a synthetic resin (e.g., plastic) or glass material.

[0107] In the following detailed description, the terms "concave" or "convex" may be used to describe the shape of the subject side surface, which is the surface of the lenses (L1, L2, L3, L4, L5) facing the subject (O), and / or the image side surface, which is the surface facing the image sensor (IS) or the imaging plane (img). References to the shape of these lens surfaces may be descriptions of the shape of the point intersecting the optical axis (OI) or the shape of the "paraxial region" around the point intersecting the optical axis (OI). "The subject side surface is concave" may describe a shape in which the center of the radius of curvature of the subject side surface is located on the subject side. "The subject side surface is convex" may describe a shape in which the center of the radius of curvature of the subject side surface is located on the image sensor (IS) side. Therefore, even if one surface of a lens (the paraxial region of that surface) is described as having a convex shape, the edge region surrounding the paraxial region of the lens may be concave. Similarly, even if one surface of a lens (the paraxial region of that surface) is described as having a concave shape, the edge region surrounding the paraxial region of the lens may be convex. In this case, regarding the concavity or convexity of the lens surface shape, a specific region of the lens surface may be specified.

[0108] According to one embodiment, at least some of the lenses (L1, L2, L3, L4, L5) may have at least one of the subject side surface or image side surface formed as an aspheric surface. For example, by forming the surfaces of the lenses (L1, L2, L3, L4, L5) as aspheric surfaces, spherical aberration that may occur in the lenses can be suppressed, coma in the periphery of the image sensor (IS) can be prevented, astigmatism can be easily controlled, and the occurrence of image plane curvature from the center to the periphery of the image plane (img) of the image sensor (IS) can be reduced.

[0109] In one embodiment, the first lens (L1) is the lens closest to the subject (O) side (or the first lens from the subject side) and may have positive refractive power. According to one embodiment, it may have a meniscus shape convex toward the subject (O) side. The subject side surface (S2) and / or image side surface (S3) of the first lens (L1) may be formed as an aspherical surface.

[0110] In one embodiment, the second lens (L2) is a second lens from the subject (O) side and may have negative refractive power. According to one embodiment, the effective diameter (e.g., L2ED in FIG. 5) of the second lens (L2) (or the subject side (S4) of the second lens (L2)) may be smaller than the effective diameter (e.g., L1ED in FIG. 5) of the subject side (S2) of the first lens (L1). Accordingly, by having a relatively small head diameter (e.g., L2ED in FIG. 5), the camera exposure area visible to the front of the display (e.g., the display (201) in FIG. 3 and FIG. 5) is reduced, which may contribute to the expansion of the display area and may be suitable for application to a large screen display.

[0111] In one embodiment, the third lens (L3) is a third lens from the subject (O) side and may have positive or negative refractive power. According to one embodiment, the subject side surface (S7) and / or image side surface (S8) of the third lens (L3) may be formed as an aspherical surface.

[0112] In one embodiment, the fourth lens (L4) is the fourth lens from the subject (O) side and may have a positive refractive power. According to one embodiment, the fourth lens (L4) may be formed convex toward the image side. According to one embodiment, the subject side surface (S9) and / or image side surface (S10) of the fourth lens (L4) may be formed as an aspherical surface.

[0113] In one embodiment, the fifth lens (L5) is the fifth lens from the subject (O) side and may have a negative refractive power. In one embodiment, the fifth lens (L5) (or the subject side surface (S11) and image side surface (S12) of the fifth lens (L5)) may have a shape that is convex toward the subject (O) side and concave toward the image side. According to one embodiment, the subject side surface (S11) and / or image side surface (S12) of the fifth lens (L5) may be formed as an aspherical surface.

[0114] In one embodiment, at least one of the lenses (L1, L2, L3, L4, L5) and / or the image sensor (IS) may be configured to reciprocate along the optical axis (OI). According to one embodiment, an electronic device (e.g., the electronic device (101) of FIG. 1 and / or the electronic device (101) of FIG. 3 and FIG. 4) or a processor (e.g., the processor (120) of FIG. 1) may be configured to focus or adjust the focal length by reciprocating the lenses (L1, L2, L3, L4, L5) and / or the image sensor (IS) along the optical axis (OI).

[0115] According to one embodiment, the aperture (sto) may be positioned between the first lens (L1) and the third lens (L3). For example, the aperture (sto) may be positioned between the first lens (L1) and the second lens (L2). For example, the aperture (sto) may be positioned between the second lens (L2) and the third lens (L3).

[0116] According to one embodiment, the image sensor (IS) may include an imaging plane (img) which receives at least a portion of the light focused through an aperture (sto) and / or lenses (L1, L2, L3, L4, L5) and forms an image. According to one embodiment, the image sensor (IS) is a sensor mounted on a circuit board or the like and positioned in alignment with an optical axis, and may respond to light. The image sensor (IS) may include, for example, a sensor such as a CMOS (complementary metal-oxide semiconductor) image sensor or a charge coupled device (CCD). The image sensor (IS) is not limited thereto and may include, for example, various devices that convert an image of a subject into an electrical image signal. The image sensor (IS) may acquire an image of a subject by detecting brightness information, grayscale ratio information, color information, etc., of the subject from light that has passed through a plurality of lenses.

[0117] According to one embodiment, the optical system (300) may further include a filter member (F). According to one embodiment, the filter member (F) may be positioned between the lens closest to the image sensor (IS) among the lens group (e.g., the fifth lens (L5)) and the image sensor (IS). According to one embodiment, the filter member (F) may include a subject side surface (S13) facing the subject (O) and an image side surface (S14) facing the image sensor (IS). For example, the filter member (F) may be configured to block light in a wavelength band (e.g., infrared) that is not visible to the user's eyes but is detected by the film or the image sensor (IS). According to one embodiment, the filter member (F) may be an infrared blocking filter. In one embodiment, in an optical system or electronic device (101) intended for detecting infrared, the filter member (F) may be replaced with a pass filter that transmits infrared and blocks visible light. For example, the filter element (F) may be aligned with a plurality of lenses (L1, L2, L3, L4, L5) of a lens group and / or an image sensor (IS) along the optical axis (OI). In one embodiment, the filter element (F) may be implemented by a coating material placed on the lens surface of any one of the lenses (L1, L2, L3, L4, L5).

[0118] Hereinafter, [Equation 1] to [Equation 12] are described for implementing the optical system (300) of FIG. 6a, the optical system (400) of FIG. 7a, the optical system (500) of FIG. 8a, the optical system (600) of FIG. 9a, the optical system (700) of FIG. 10a, the optical system (800) of FIG. 11a, and the optical system (900) of FIG. 12a into a bright wide-angle optical system with improved aberration performance, while ensuring sufficient thickness of the first lens (L1), in accordance with one embodiment, by miniaturizing and / or slimming the optical system (300) of FIG. 6a, the optical system (400) of FIG. 7a, the optical system (500) of FIG. 8a, the optical system (600) of FIG. 9a, and the optical system (900) of FIG. 12a, so as to be suitable for application to a hole in display (HID), and by miniaturizing and / or slimming the optical system so as to be suitable for application to a hole in display (HID), while ensuring sufficient thickness of the first lens (L1).

[0119] In the present disclosure, the radius (e.g., radius of curvature) of the lenses (L1, L2, L3, L4, L5), effective focal length (f), total track length (TTL), surface distance (SD), air gap, thickness, or image height (IH) of the image sensor (IS) may all have units of mm unless specifically noted. Additionally, the radius of the lenses (L1, L2, L3, L4, L5) and the image height (IH) of the image sensor (IS) may be measured in a direction substantially perpendicular from the point of intersection with the optical axis (OI), and the focal length (f), effective focal length (EFL), TTL, BFL, air gap, or thickness of the lenses (L1, L2, L3, L4, L5) may be measured in a direction parallel to the optical axis (OI) from the point of intersection with the optical axis (OI).

[0120] The optical system (300) described above in the embodiments of FIGS. 5 to 6d, and the optical systems (400, 500, 600, 700, 800, 900) in the embodiments of FIGS. 7a to 12d may have a wide half-field of view (HFOV) of more than about 41 degrees and less than about 53 degrees, and accordingly, a wide image can be obtained. The optical system (300) described above in the embodiments of FIGS. 5 to 6d, and the optical systems (400, 500, 600, 700, 800, 900) in the embodiments of FIGS. 7a to 12d can be configured such that the distance (BFL) from the vertex of the image side surface (S12 in FIGS. 6a, FIGS. 7a, FIGS. 8a, FIGS. 9a, FIGS. 10a and FIGS. 12a and S11 in FIGS. 11a) of the last lens (e.g., the fifth lens (L5)) to the image plane (img) of the image sensor (IS) is smaller than about 0.85 mm, and can be configured to have a Chief ray Angle (CRA) of about 38 degrees or more, thereby having a slimmed-down (or thinned) structure.

[0121] The optical system (300) described above in the embodiments of FIGS. 5 to 6d, and the optical systems (400, 500, 600, 700, 800, 900) of the embodiments of FIGS. 7a to 12d, may have an effective diameter (e.g., L2ED in FIG. 5) of the second lens (L2) (or the subject side (S4) of the second lens (L2)) that is smaller than the effective diameter (e.g., L1ED in FIG. 5) of the subject side (S2) of the first lens (L1), and accordingly, may have a relatively small head diameter (e.g., L2ED in FIG. 5), thereby reducing the camera exposure area visible to the front of the display (e.g., the display (201) in FIG. 3 and FIG. 5) and contributing to the expansion of the display area, making it suitable for application to a large screen display.

[0122] The optical system (300) of FIGS. 5 and 6a, the optical system (400) of FIGS. 7a, the optical system (500) of FIGS. 8a, the optical system (600) of FIGS. 9a, and the optical system (700) of FIGS. 10a, the optical system (800) of FIGS. 11a, and the optical system (900) of FIGS. 12a may have a slimmed-down structure that reduces the overall height (or thickness) of the optical system while being placed below a display (e.g., the display (201) of FIGS. 3 and 5), by satisfying the following [Equation 1], [Equation 2] and [Equation 3]. The optical system (300) of FIGS. 5 and 6a, the optical system (400) of FIG. 7a, the optical system (500) of FIG. 8a, the optical system (600) of FIG. 9a, the optical system (700) of FIG. 10a, and the optical system (800) of FIG. 11a can satisfy the following [Equation 4]. The optical system (900) of FIG. 12a can satisfy the following [Equation 5].

[0123] According to one embodiment, the optical system (300, 400, 500, 600, 700, 800, 900) can satisfy the following [Equation 1].

[0124] [Equation 1]

[0125] (f / ImgH)*TTL < 3

[0126] Here, f(focal length) is the focal length of the optical system, ImgH is the height of the image sensor, and TTL is the distance from the first lens to the imaging plane.

[0127] [Equation 1] relates to a slim factor, which is the ratio of the thickness of the optical system to the size of the image sensor (or the size of the imaging plane (img)), and is an equation for implementing a slim optical system. If (f / ImgH)*TTL of [Equation 1] exceeds about 3, the optical system becomes larger, which may be disadvantageous for slimming the thickness of the electronic device (e.g., the electronic device (101) of FIGS. 1 to 3).

[0128] According to one embodiment, the optical system (300, 400, 500, 600, 700, 800, 900) can satisfy the following [Equation 2].

[0129] [Equation 2]

[0130] BFL < 0.85mm

[0131] Here, BFL is the distance from the upper side of the fifth lens to the image plane.

[0132] [Equation 2] relates to the overall size or thickness of an optical system and is an equation for implementing a slim optical system. If the BFL of [Equation 2] exceeds about 0.85 mm, the optical system becomes larger, which may be disadvantageous for slimming the thickness of an electronic device (e.g., electronic device (101) of FIGS. 1 to 3).

[0133] According to one embodiment, the optical system (300, 400, 500, 600, 700, 800, 900) can satisfy the following [Equation 3].

[0134] [Equation 3]

[0135] 0.6 < CT4 / CT5 < 1.9

[0136] Here, CT4 is the center thickness of the fourth lens, and CT5 is the center thickness of the fifth lens.

[0137] In the present disclosure, the center thickness of the lens may be the length measured from the center of the subject side surface of the lens to the center of the image side surface.

[0138] According to one embodiment, by satisfying [Equation 3] and securing the center thickness of the fourth lens (L1) to be about 0.6 to about 1.9 times the center thickness of the fifth lens (L5), a slim optical system can be realized and an optical system suitable for placement in or below a display (e.g., the display (201) of FIG. 3 and FIG. 4) can be realized.

[0139] According to one embodiment, the optical system (300, 400, 500, 600, 700, 900) of FIG. 5, FIG. 6a, FIG. 7a, FIG. 8a, FIG. 9a, FIG. 10a and FIG. 12a can satisfy the following [Equation 4].

[0140] [Equation 4]

[0141] 0.6 < CT4 / CT5 < 1

[0142] Here, CT4 is the center thickness of the fourth lens, and CT5 is the center thickness of the fifth lens.

[0143] According to one embodiment, by satisfying [Equation 4] and securing the center thickness of the fourth lens (L1) to be about 0.6 times to about 1 time compared to the center thickness of the fifth lens (L5), a slim optical system can be realized and an optical system suitable for placement in or below a display (e.g., the display (201) of FIG. 3 and FIG. 4) can be realized.

[0144] According to one embodiment, the optical system (800) of FIG. 11a can satisfy [Equation 5] following.

[0145] [Equation 5]

[0146] 1.3 < CT4 / CT5 < 1.9

[0147] Here, CT4 is the center thickness of the fourth lens, and CT5 is the center thickness of the fifth lens.

[0148] According to one embodiment, by satisfying [Equation 5] and securing the center thickness of the fourth lens (L1) to be about 1.3 times to about 1.9 times the center thickness of the fifth lens (L5), a slim optical system can be realized and an optical system suitable for placement within or below a display (e.g., the display (201) of FIG. 3 and FIG. 4) can be realized.

[0149] Table 1 below shows the MAX CRA (maximum principal ray angle), HFOV (half-angle), the value of '(f / ImgH)*TTL' of the above-described [Equation 1], the value of 'BFL' of the above-described [Equation 2], and the value of 'CT4 / CT5' of the above-described [Equation 3] for the optical systems (300, 400, 500, 600, 700, 800, 900) according to [Examples 2] to [Examples 7] described later with reference to [Example 1] and FIGS. 7a to 12d. Referring to [Table 1], it can be seen that the optical systems (300, 400, 500, 600, 700, 800, 900) according to [Examples 1] to [Examples 7] satisfy the above-described [Equation 1] to [Equation 3]. Referring to [Table 1], it can be seen that the optical systems (300, 400, 500, 600, 700, 800) according to [Examples 1] to [Examples 6] satisfy the above-described [Equation 4]. Referring to [Table 1], it can be seen that the optical system (900) according to [Example 7] satisfies the above-described [Equation 5].

[0150] Item Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 MAX CRA39 424341444243HFOV43434446445044(f / ImgH)*TTL2.91 2.88 2.72 2.62 2.76 2.25 2.81BFL0.77 0.77 0.76 0.65 0.69 0.82 0.58CT4 / CT5 0.60 0.68 0.73 0.88 0.64 1.77 0.82

[0151] In one embodiment, the optical system (300) may be manufactured to have the specifications exemplified in the following [Table 2]. In [Table 2], surface 1 and surface 6 may be measured values ​​of air gaps. In [Table 2], surface 'n' (where n is 2 to 5, 7 to 12) may correspond to Sn (where n is 2 to 5, 7 to 12), which is a lens surface that is the subject side or image side of the lenses (L1, L2, L3, L4, L5) of the present disclosure. In [Table 2], surface 'n' (where n is 13 and 14) may correspond to the subject side (S13) and image side (S14) of the filter member (F).

[0152] Surface Radius Thickness Glass H-Ape Effective Focal Length (EFL) Subject (O) infinity infinity 1 infinity -0.226 -0.579 20.817 0.359 544.56 0.579 2.10 32.40 50.067 -0.52 418.83 60.148 680.18 0.51 0 -5.865 (Aperture (sto)) 3.31 40.084 -0.4546 infinity 0.081 -0.455 78.278 0.16467 1.190.53326.84815.0450.369-0.6449-52.6570.211567.370.91139.1610-15.7130.197-1.112111.2690. 354535.561.626-6.15120.8280.271-1.74513infinity0.110517.642.224infinity14infinity0.3982.269 Image plane (img)infinity0.388-

[0153] Tables 3 and 4 below list the aspherical coefficients of the lenses (L1, L2, L3, L4, L5), and the aspherical coefficients can be calculated using the following Equation 1.

[0154] [Mathematical Formula 1]

[0155]

[0156] Here, 'z' represents the distance from the vertex of the lens (L1, L2, L3, L4, L5, L6) in the direction of the optical axis (OI), 'y' represents the distance in the direction perpendicular to the optical axis (OI), 'c'' represents the reciprocal of the radius of curvature (curvature) at the vertex of the lens, 'k' represents the conic constant, and 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'J', 'K', 'L', 'M', 'N', and 'O' can each represent the aspherical coefficients.

[0157]

[0158] 표면(Surface)S2S3S4S5S7K(Conic)-1.711E-011.389E+010.000E+00-1.206E+010.000E+00A(4th)-3.757E-01-4.361E-018.259E-02-4.863E-01-3.718E-01B(6th)2.852E+014.206E+00-2.583E+014.732E+01-2.014E+01C(8th)-1.160E+03-3.262E+021.182E+03-2.058E+039.276E+02D(10th)2.959E+041.197E+04-3.290E+045.489E+04-2.650E+04E(12th)-5.019E+05-2.650E+056.418E+05-8.116E+055.006E+05F(14th)5.894E+063.892E+06-9.036E+063.860E+06-6.475E+06G(16th)-4.914E+07-3.972E+079.302E+078.947E+075.887E+07H(18th)2.947E+082.879E+08-7.026E+08-2.152E+09-3.820E+08J(20th)-1.274E+09-1.493E+093.877E+092.365E+101.778E+09K(22th)3.928E+095.504E+09-1.541E+10-1.601E+11-5.886E+09L(24th)-8.425E+09-1.408E+104.285E+107.015E+111.354E+10M(26th)1.193E+102.376E+10-7.902E+10-1.947E+12-2.054E+10N(28th)-1.001E+10-2.378E+108.668E+103.121E+121.849E+10O(30th)3.768E+091.069E+10-4.277E+10-2.207E+12-7.477E+09

[0159] 표면(Surface)S8S9S10S11S12K(Conic)0.000E+000.000E+007.300 E+01-9.791E-01-2.889E+00A(4th)-3.816E-01-5.171E-01-1.530E+00-2.772E+00-1.542E+00B(6th)-7.073E+002.901E+001.077E+018.480E+004.310E+00C(8th)1.765E+021.415E+01-5.776E+01-2.337E+01-9.352E+00D(10th)-2.428E+03-5.514E+022.424E+025.179E+011.468E+01E(12th)1.939E+045.835E+03-7.746E+02-8.267E+01-1.629E+01F(14th)-7.534E+04-3.588E+041.779E+039.380E+011.255E+01G(16th)-9.442E+041.440E+05-2.784E+03-7.674E+01-6.412E+00H(18th)2.863E+06-3.931E+052.691E+034.580E+011.854E+00J(20th)-1.692E+077.411E+05-1.065E+03-1.999E+01-3.089E-02K(22th)5.637E+07-9.624E+05-8.347E+026.313E+00-2.194E-01L(24th)-1.178E+088.437E+051.474E+03-1.406E+009.732E-02M(26th)1.534E+08-4.762E+05-9.363E+022.095E-01-2.139E-02N(28th)-1.142E+081.561E+052.943E+02-1.874E-022.501E-03O(30th)3.722E+07-2.255E+04-3.796E+017.616E-04-1.241E-04

[0160] FIG. 6b is a graph showing the spherical aberration of an optical system (300) according to one embodiment of the present disclosure, wherein the horizontal axis represents the coefficient of longitudinal spherical aberration and the vertical axis represents the distance from the optical axis (OI) normalized, and shows the change in longitudinal spherical aberration according to the wavelength of light. Longitudinal spherical aberration is shown for light with wavelengths of, for example, 656.3000 (NM, nanometer), 587.6000 (NM), 546.1000 (NM), 486.1000 (NM), and 435.8000 (NM). FIG. 6c is a graph showing astigmatic field curves for light of wavelength 546.1000 (NM) of an optical system (300) according to one embodiment of the present disclosure, where 'S' exemplifies a sagittal plane (solid line) and 'T' exemplifies a tangential plane (or meridional plane) (dotted line). FIG. 6d is a graph showing distortion for light of wavelength 546.1000 (NM) of an optical system (300) according to one embodiment of the present disclosure.

[0161] [Example 2]

[0162] FIG. 7a is a schematic diagram showing an optical system according to one embodiment of the present disclosure. FIG. 7b is a graph showing the spherical aberration of the optical system of FIG. 7a according to one embodiment disclosed in this document. FIG. 7c is a graph showing the astigmatism of the optical system of FIG. 7a according to one embodiment disclosed in this document. FIG. 7d is a graph showing the distortion rate of the optical system of FIG. 7a according to one embodiment disclosed in this document.

[0163] In the present disclosure, the configuration of the optical system (400) according to the embodiments of FIGS. 7a to 7d may be at least partially identical or similar to the configuration of the optical system (300) according to the embodiments of FIGS. 6a to 6d. The description regarding the first lens (L1), second lens (L2), third lens (L3), fourth lens (L4), fifth lens (L5), aperture (sto), filter member (F), and / or image sensor (IS) of the optical system (300) according to the embodiments of FIGS. 6a to 6d may be applied identically or similarly to the first lens (L1), second lens (L2), third lens (L3), fourth lens (L4), fifth lens (L5), aperture (sto), filter member (F), and / or image sensor (IS) of the optical system (400) according to the embodiments of FIGS. 7a to 7d.

[0164] In one embodiment, the optical system (400) may be manufactured with the specifications exemplified in the following [Table 5] and may have the aspherical coefficients of [Table 6] and [Table 7]. In [Table 5], surface 1 and surface 6 may be measured values ​​of the air gap. In [Table 5], surface 'n' (where n is 2 to 5, 7 to 12) may correspond to Sn (where n is 2 to 5, 7 to 12), which is a lens surface that is the subject side or image side of the lenses (L1, L2, L3, L4, L5) of the present disclosure. In [Table 5], surface 'n' (where n is 13 and 14) may correspond to the subject side (S13) and image side (S14) of the filter member (F).

[0165] Surface Radius Thickness Glass H-Ape Effective Focal Length (EFL) Subject (O) infinity 400-1 infinity -0.22 0 -0.5882 0.816 0.3585 44.56 0.5842 113 2.364 0.066 -0.5464 (Aperture (sto)) -69.40 10.16168 0.18 0.522 -6.5354.815 0.081 -0.4586 infinity 0.063 -0.4847 -1244.855 0.1786 71.19 0.5102 4.908-16.6810.395-0.623910.6050.215567.370.95814.0210-32.3440.199-1.191111.5640.318535.561.691-4 .13120.8520.107-1.74213infinity0.110517.642.08214infinity0.560-2.129Image plane (img)infinity-0.010-2.563

[0166] Tables 6 and 7 below describe the aspherical coefficients of the lenses (L1, L2, L3, L4, L5) of the optical system (400), and the aspherical coefficients can be calculated using the above-described [Equation 1] by referring to Tables 3 and 4.

[0167] 표면(Surface)S2S3S4S5S7K(Conic)-2.239E-019.404E+000.000E+002.024E+010.000E+00A(4th)2.510E-01-8.692E-01-1.147E+00-3.435E-01-7.011E-01B(6th)-1.598E+013.155E+017.299E+012.481E+01-1.258E+01C(8th)6.205E+02-1.538E+03-3.381E+03-6.385E+024.940E+02D(10th)-1.501E+044.552E+041.031E+05-2.122E+03-1.148E+04E(12th)2.426E+05-8.869E+05-2.130E+067.458E+051.875E+05F(14th)-2.738E+061.195E+073.092E+07-2.587E+07-2.348E+06G(16th)2.218E+07-1.144E+08-3.225E+084.934E+082.374E+07H(18th)-1.307E+087.900E+082.441E+09-6.102E+09-1.940E+08J(20th)5.618E+08-3.943E+09-1.341E+105.150E+101.237E+09K(22th)-1.743E+091.408E+105.290E+10-3.001E+11-5.861E+09L(24th)3.803E+09-3.508E+10-1.458E+111.191E+121.960E+10M(26th)-5.532E+095.784E+102.667E+11-3.077E+12-4.325E+10N(28th)4.817E+09-5.671E+10-2.903E+114.668E+125.621E+10O(30th)-1.899E+092.502E+101.424E+11-3.158E+12-3.246E+10

[0168] 표면(Surface)S8S9S10S11S12K(Conic)0.000E+000.000E+000.000E+00-8.004E-01-3.343E+00A(4th)-7.399E-01-2.871E-01-1.083E+00-2.558E+00-1.604E+00B(6th)1.540E+00-1.632E+007.242E+006.590E+004.823E+00C(8th)-2.083E+014.830E+01-4.492E+01-1.452E+01-1.189E+01D(10th)2.865E+01-6.597E+022.379E+023.057E+012.310E+01E(12th)6.339E+035.408E+03-9.785E+02-5.246E+01-3.430E+01F(14th)-1.395E+05-2.968E+042.954E+036.665E+013.837E+01G(16th)1.584E+061.131E+05-6.480E+03-6.148E+01-3.216E+01H(18th)-1.136E+07-3.038E+051.031E+044.122E+012.010E+01J(20th)5.471E+075.770E+05-1.181E+04-2.008E+01-9.293E+00K(22th)-1.803E+08-7.678E+059.618E+037.029E+003.125E+00L(24th)4.021E+086.984E+05-5.413E+03-1.724E+00-7.419E-01M(26th)-5.815E+08-4.132E+051.998E+032.813E-011.178E-01N(28th)4.925E+081.432E+05-4.344E+02-2.742E-02-1.121E-02O(30th)-1.856E+08-2.207E+044.218E+011.209E-034.840E-04

[0169] FIG. 7b is a graph showing the spherical aberration of an optical system (400) according to one embodiment of the present disclosure, wherein the horizontal axis represents the coefficient of longitudinal spherical aberration and the vertical axis represents the distance from the optical axis (OI) normalized, and shows the change in longitudinal spherical aberration according to the wavelength of light. Longitudinal spherical aberration is shown for light with wavelengths of, for example, 656.3000 (NM, nanometer), 587.6000 (NM), 546.1000 (NM), 486.1000 (NM), and 435.8000 (NM). FIG. 7c is a graph showing astigmatic field curves for light of wavelength 546.1000 (NM) of an optical system (400) according to one embodiment of the present disclosure, where 'S' exemplifies a sagittal plane and 'T' exemplifies a tangential plane or meridional plane. FIG. 7d is a graph showing distortion for light of wavelength 546.1000 (NM) of an optical system (400) according to one embodiment of the present disclosure.

[0170] [Example 3]

[0171] FIG. 8a is a schematic diagram showing an optical system according to one embodiment of the present disclosure. FIG. 8b is a graph showing the spherical aberration of the optical system of FIG. 8a according to one embodiment disclosed in this document. FIG. 8c is a graph showing the astigmatism of the optical system of FIG. 8a according to one embodiment disclosed in this document. FIG. 8d is a graph showing the distortion rate of the optical system of FIG. 8a according to one embodiment disclosed in this document.

[0172] In the present disclosure, the configuration of the optical system (500) according to the embodiments of FIGS. 8a to 8d may be at least partially identical or similar to the configuration of the optical system (300) according to the embodiments of FIGS. 6a to 6d. The description regarding the first lens (L1), second lens (L2), third lens (L3), fourth lens (L4), fifth lens (L5), aperture (sto), filter member (F), and / or image sensor (IS) of the optical system (300) according to the embodiments of FIGS. 6a to 6d may be applied identically or similarly to the first lens (L1), second lens (L2), third lens (L3), fourth lens (L4), fifth lens (L5), aperture (sto), filter member (F), and / or image sensor (IS) of the optical system (500) according to the embodiments of FIGS. 8a to 8d.

[0173] In one embodiment, the optical system (500) may be manufactured with the specifications exemplified in the following [Table 8] and may have the aspherical coefficients of [Table 9] and [Table 10]. In [Table 8], surface 1 and surface 6 may be measured values ​​of the air gap. In [Table 8], surface 'n' (where n is 2 to 5, 7 to 12) may correspond to Sn (where n is 2 to 5, 7 to 12), which is a lens surface that is the subject side or image side of the lenses (L1, L2, L3, L4, L5) of the present disclosure. In [Table 8], surface 'n' (where n is 13 and 14) may correspond to the subject side (S13) and image side (S14) of the filter member (F).

[0174] Surface Radius Thickness Glass H-Ape Effective Focal Length (EFL) Subject (O) infinity 400 1 infinity - 0.2 20 20.8 29 0.3 46 54 4.5 6 0.5 76 2.1 32.5 47 0.0 53 0.5 29 4 (Aperture (sto)) - 69.9 74 0.1 6 56 71.1 9 0.5 12 - 6.3 15 4.5 66 0.0 85 0.4 58 6 infinity 0.0 43 0.4 80 71 80.5 91 0.1 93 61 4.2 6 0.4 92 15.5 9 8 - 10.2080.3570.57397.1930.211567.370.80010.0610-28.1190.2481.023111.6660.288535.561.510-3.53120 .8330.4001.61213infinity0.110517.642.282infinity14infinity0.2362.335Image plane (img)infinity0.0152.560

[0175] Tables 9 and 10 below describe the aspherical coefficients of the lenses (L1, L2, L3, L4, L5) of the optical system (500), and the aspherical coefficients can be calculated using the above-described [Equation 1] by referring to Tables 3 and 4.

[0176] 표면(Surface)S2S3S4S5S7K(Conic)-3.150E-018.826E+000.000E+003.613E+010.000E+00A(4th)-5.202E-02-2.690E-01-9.152E-01-2.229E-01-2.558E-01B(6th)3.078E+00-2.475E+014.646E+014.035E+01-5.220E+01C(8th)-4.834E+011.015E+03-1.922E+03-2.695E+033.052E+03D(10th)-6.537E+02-2.681E+045.419E+041.142E+05-1.109E+05E(12th)4.174E+044.872E+05-1.050E+06-3.130E+062.706E+06F(14th)-8.409E+05-6.276E+061.454E+075.869E+07-4.599E+07G(16th)9.888E+065.829E+07-1.472E+08-7.774E+085.572E+08H(18th)-7.650E+07-3.928E+081.102E+097.391E+09-4.870E+09J(20th)4.059E+081.914E+09-6.098E+09-5.061E+103.074E+10K(22th)-1.491E+09-6.657E+092.463E+102.473E+11-1.388E+11L(24th)3.736E+091.607E+10-7.056E+10-8.413E+114.369E+11M(26th)-6.098E+09-2.549E+101.357E+111.891E+12-9.098E+11N(28th)5.853E+092.385E+10-1.571E+11-2.526E+121.126E+12O(30th)-2.508E+09-9.946E+098.252E+101.517E+12-6.266E+11

[0177] 표면(Surface)S8S9S10S11S12K(Conic)0.000E+000.000E+000.000E+00-7.242E-01-3.647E+00A(4th)-9.064E-01-3.709E-01-1.040E+00-2.736E+00-1.693E+00B(6th)1.873E+01-1.412E+008.285E+007.593E+004.958E+00C(8th)-8.302E+023.617E+01-6.124E+01-1.915E+01-1.106E+01D(10th)2.290E+04-3.922E+023.561E+024.383E+011.811E+01E(12th)-4.118E+052.410E+03-1.491E+03-7.708E+01-2.120E+01F(14th)5.046E+06-8.778E+034.366E+039.894E+011.729E+01G(16th)-4.342E+071.461E+04-8.987E+03-9.308E+01-9.272E+00H(18th)2.669E+081.927E+041.304E+046.483E+012.662E+00J(20th)-1.177E+09-1.660E+05-1.322E+04-3.345E+011.662E-01K(22th)3.697E+094.188E+059.109E+031.264E+01-5.120E-01L(24th)-8.064E+09-5.821E+05-4.015E+03-3.401E+002.275E-01M(26th)1.161E+104.718E+059.857E+026.162E-01-5.261E-02N(28th)-9.919E+09-2.080E+05-8.178E+01-6.732E-026.550E-03O(30th)3.806E+093.837E+04-8.043E+003.346E-03-3.477E-04

[0178] FIG. 8b is a graph showing the spherical aberration of an optical system (500) according to one embodiment of the present disclosure, wherein the horizontal axis represents the coefficient of longitudinal spherical aberration and the vertical axis represents the distance from the optical axis (OI) normalized, and shows the change in longitudinal spherical aberration according to the wavelength of light. Longitudinal spherical aberration is shown for light with wavelengths of, for example, 656.3000 (NM, nanometer), 587.6000 (NM), 546.1000 (NM), 486.1000 (NM), and 435.8000 (NM), respectively. FIG. 8c is a graph showing astigmatic field curves for light of wavelength 546.1000 (NM) of an optical system (500) according to one embodiment of the present disclosure, where 'S' exemplifies a sagittal plane and 'T' exemplifies a tangential plane or meridional plane. FIG. 8d is a graph showing distortion for light of wavelength 546.1000 (NM) of an optical system (500) according to one embodiment of the present disclosure.

[0179] [Example 4]

[0180] FIG. 9a is a schematic diagram showing an optical system according to one embodiment of the present disclosure. FIG. 9b is a graph showing the spherical aberration of the optical system of FIG. 9a according to one embodiment disclosed in this document. FIG. 9c is a graph showing the astigmatism of the optical system of FIG. 9a according to one embodiment disclosed in this document. FIG. 9d is a graph showing the distortion rate of the optical system of FIG. 9a according to one embodiment disclosed in this document.

[0181] In the present disclosure, the configuration of the optical system (600) according to the embodiments of FIGS. 9a to 9d may be at least partially identical or similar to the configuration of the optical system (300) according to the embodiments of FIGS. 6a to 6d. The description regarding the first lens (L1), second lens (L2), third lens (L3), fourth lens (L4), fifth lens (L5), aperture (sto), filter member (F), and / or image sensor (IS) of the optical system (300) according to the embodiments of FIGS. 6a to 6d may be applied identically or similarly to the first lens (L1), second lens (L2), third lens (L3), fourth lens (L4), fifth lens (L5), aperture (sto), filter member (F), and / or image sensor (IS) of the optical system (600) according to the embodiments of FIGS. 9a to 9d.

[0182] In one embodiment, the optical system (600) may be manufactured with the specifications exemplified in the following [Table 11] and may have the aspherical coefficients of [Table 12] and [Table 13]. In [Table 11], surface 1 and surface 6 may be measured values ​​of the air gap. In [Table 11], surface 'n' (where n is 2 to 5, 7 to 12) may correspond to Sn (where n is 2 to 5, 7 to 12), which is a lens surface that is the subject side or image side of the lenses (L1, L2, L3, L4, L5) of the present disclosure. In [Table 11], surface 'n' (where n is 13 and 14) may correspond to the subject side (S13) and image side (S14) of the filter member (F).

[0183] Surface Radius Thickness GlassH-Ape Subject(O) infinity infinity1 infinity-0.2500.62320.8250.377544.560.60032.2360.0570.5264 (Aperture(sto))-96.0400.159680.180.490512.1450.0990.4526 infinity0.1110.4567-14.9730.172 671.190.5448-218.9460.2810.6849-68.4880.280567.370.94010-2.4740.2661.144118.3190.318535.561.5 40121.2150.4001.72013infinity0.110517.642.49714infinity0.130-2.549Image plane (img)infinity0.015-2.674

[0184] Tables 12 and 4 below describe the aspherical coefficients of the lenses (L1, L2, L3, L4, L5) of the optical system (600), and the aspherical coefficients can be calculated using the above-described [Equation 1] by referring to Tables 3 and 4.

[0185] 표면(Surface)S2S3S4S5S7K(Conic)-3.236E-017.881E+000.000E+00-6.035E+010.000E+00A(4th)1.707E-03-4.071E-01-1.040E-012.964E-01-9.379E-01B(6th)2.629E-01-6.160E-012.702E+001.177E+001.251E+01C(8th)9.285E-01-5.789E+00-3.135E+011.291E+01-2.469E+02D(10th)-3.132E+014.144E+013.121E+02-6.610E+012.967E+03E(12th)1.865E+02-1.005E+02-1.580E+031.560E+02-2.215E+04F(14th)-5.482E+028.140E+014.107E+030.000E+001.030E+05G(16th)6.911E+020.000E+00-4.263E+030.000E+00-2.892E+05H(18th)-2.829E+020.000E+000.000E+000.000E+004.488E+05J(20th)0.000E+000.000E+000.000E+000.000E+00-2.956E+05K(22th)0.000E+000.000E+000.000E+000.000E+000.000E+00L(24th)0.000E+000.000E+000.000E+000.000E+000.000E+00M(26th)0.000E+000.000E+000.000E+000.000E+000.000E+00N(28th)0.000E+000.000E+000.000E+000.000E+000.000E+00O(30th)0.000E+000.000E+000.000E+000.000E+000.000E+00

[0186] 표면(Surface)S8S9S10S11S12K(Conic)0.000E+000.000E+000.000E+001.151E+01-2.960E+00A(4th)-5.991E-012.078E-02-3.255E-02-7.983E-01-6.399E-01B(6th)2.326E+00-3.780E+009.527E-01-2.088E+00-3.158E-01C(8th)-3.355E+016.841E+01-2.029E+011.562E+014.769E+00D(10th)2.928E+02-8.765E+021.735E+02-5.146E+01-1.423E+01E(12th)-1.534E+037.270E+03-8.657E+021.120E+022.493E+01F(14th)4.864E+03-4.050E+042.810E+03-1.686E+02-2.917E+01G(16th)-9.050E+031.556E+05-6.265E+031.792E+022.374E+01H(18th)9.089E+03-4.191E+059.849E+03-1.367E+02-1.358E+01J(20th)-3.813E+037.956E+05-1.101E+047.550E+015.401E+00K(22th)0.000E+00-1.057E+068.693E+03-3.000E+01-1.438E+00L(24th)0.000E+009.608E+05-4.735E+038.389E+002.337E-01M(26th)0.000E+00-5.689E+051.692E+03-1.570E+00-1.727E-02N(28th)0.000E+001.977E+05-3.568E+021.768E-01-4.951E-04O(30th)0.000E+00-3.058E+043.364E+01-9.078E-031.240E-04

[0187] FIG. 9b is a graph showing the spherical aberration of an optical system (600) according to one embodiment of the present disclosure, wherein the horizontal axis represents the coefficient of longitudinal spherical aberration and the vertical axis represents the distance from the optical axis (OI) normalized, and shows the change in longitudinal spherical aberration according to the wavelength of light. Longitudinal spherical aberration is shown for light with wavelengths of, for example, 656.3000 (NM, nanometer), 587.6000 (NM), 546.1000 (NM), 486.1000 (NM), and 435.8000 (NM). FIG. 9c is a graph showing astigmatic field curves for light of wavelength 546.1000 (NM) of an optical system (600) according to one embodiment of the present disclosure, where 'S' exemplifies a sagittal plane and 'T' exemplifies a tangential plane or meridional plane. FIG. 9d is a graph showing distortion for light of wavelength 546.1000 (NM) of an optical system (600) according to one embodiment of the present disclosure.

[0188] [Example 5]

[0189] FIG. 10a is a schematic diagram showing an optical system according to one embodiment of the present disclosure. FIG. 10b is a graph showing the spherical aberration of the optical system of FIG. 10a according to one embodiment disclosed in this document. FIG. 10c is a graph showing the astigmatism of the optical system of FIG. 10a according to one embodiment disclosed in this document. FIG. 10d is a graph showing the distortion rate of the optical system of FIG. 10a according to one embodiment disclosed in this document.

[0190] In the present disclosure, the configuration of the optical system (700) according to the embodiments of FIGS. 10a to 10d may be at least partially identical or similar to the configuration of the optical system (300) according to the embodiments of FIGS. 6a to 6d. The description of the first lens (L1), second lens (L2), third lens (L3), fourth lens (L4), fifth lens (L5), aperture (sto), filter member (F), and / or image sensor (IS) of the optical system (300) according to the embodiments of FIGS. 6a to 6d may be applied identically or similarly to the first lens (L1), second lens (L2), third lens (L3), fourth lens (L4), fifth lens (L5), aperture (sto), filter member (F), and / or image sensor (IS) of the optical system (700) according to the embodiments of FIGS. 10a to 10d.

[0191] In one embodiment, the optical system (700) may be manufactured with the specifications exemplified in the following [Table 14] and may have the aspherical coefficients of [Table 15] and [Table 16]. In [Table 14], surface 1 and surface 6 may be measured values ​​of the air gap. In [Table 14], surface 'n' (where n is 2 to 5, 7 to 12) may correspond to Sn (where n is 2 to 5, 7 to 12), which is a lens surface that is the subject side or image side of the lenses (L1, L2, L3, L4, L5) of the present disclosure. In [Table 14], surface 'n' (where n is 13 and 14) may correspond to the subject side (S13) and image side (S14) of the filter member (F).

[0192] Surface Radius Thickness GlassH-Ape Subject(O) infinity4001 infinity-0.259 0.6222 0.815 0.369544.56 0.61932.4000.056 0.54948.671 0.140671.19 0.5225 (Aperture(sto))2.5300.106 0.4506 infinity0.057 0.4997 -554.807 0.17261 4.260.5508-7.2510.3900.627910.7630.168567.970.90610-52.2860.3321.077111.4950.265535.561.53 3120.7580.3301.66813infinity0.110516.642.37614infinity0.2622.430Image plane (img)infinity-0.0092.672

[0193] Tables 15 and 16 below describe the aspherical coefficients of the lenses (L1, L2, L3, L4, L5) of the optical system (700), and the aspherical coefficients can be calculated using the above-described [Equation 1] by referring to Tables 3 and 4.

[0194] 표면(Surface)S2S3S4S5S7K(Conic)-2.268E-015.582E+002.998E-012.049E+01-4.864E-03A(4th)2.936E-01-1.946E-01-2.227E-01-7.636E-01-8.378E-02B(6th)-2.583E+01-8.155E+003.293E+009.926E+01-2.232E+01C(8th)9.788E+021.432E+00-3.038E+02-6.494E+036.704E+02D(10th)-2.097E+046.605E+031.416E+042.634E+05-1.134E+04E(12th)2.881E+05-2.004E+05-3.519E+05-7.008E+061.032E+05F(14th)-2.702E+063.207E+065.554E+061.283E+08-1.881E+05G(16th)1.787E+07-3.284E+07-5.969E+07-1.664E+09-7.228E+06H(18th)-8.482E+072.296E+084.511E+081.550E+109.956E+07J(20th)2.898E+08-1.124E+09-2.426E+09-1.040E+11-6.937E+08K(22th)-7.068E+083.859E+099.239E+094.984E+113.026E+09L(24th)1.200E+09-9.123E+09-2.436E+10-1.662E+12-8.560E+09M(26th)-1.345E+091.416E+104.230E+103.661E+121.529E+10N(28th)8.958E+08-1.300E+10-4.349E+10-4.789E+12-1.569E+10O(30th)-2.682E+085.349E+092.004E+102.814E+127.050E+09

[0195] 표면(Surface)S8S9S10S11S12K(Conic)5.062E+005.544E-018.432E-02-9.739E-01-2.808E+00A(4th)-4.937E-01-6.074E-01-1.064E+00-2.894E+00-2.340E+00B(6th)4.072E+00-1.273E+006.236E+008.077E+008.682E+00C(8th)-1.790E+021.057E+02-8.094E+00-1.478E+01-2.541E+01D(10th)4.565E+03-1.543E+03-2.109E+026.825E+005.656E+01E(12th)-7.160E+041.193E+041.934E+034.134E+01-9.477E+01F(14th)7.421E+05-5.784E+04-9.022E+03-1.204E+021.189E+02G(16th)-5.303E+061.856E+052.709E+041.738E+02-1.113E+02H(18th)2.671E+07-3.993E+05-5.597E+04-1.604E+027.737E+01J(20th)-9.535E+075.660E+058.125E+041.013E+02-3.961E+01K(22th)2.390E+08-4.936E+05-8.279E+04-4.461E+011.468E+01L(24th)-4.090E+082.092E+055.797E+041.352E+01-3.817E+00M(26th)4.516E+082.089E+04-2.655E+04-2.698E+006.597E-01N(28th)-2.870E+08-5.853E+047.159E+033.200E-01-6.790E-02O(30th)7.857E+071.710E+04-8.615E+02-1.711E-023.147E-03

[0196] FIG. 10b is a graph showing the spherical aberration of an optical system (700) according to one embodiment of the present disclosure, wherein the horizontal axis represents the coefficient of longitudinal spherical aberration and the vertical axis represents the distance from the optical axis (OI) normalized, and shows the change in longitudinal spherical aberration according to the wavelength of light. Longitudinal spherical aberration is shown for light with wavelengths of, for example, 656.3000 (NM, nanometer), 587.6000 (NM), 546.1000 (NM), 486.1000 (NM), and 435.8000 (NM). FIG. 10c is a graph showing astigmatic field curves for light of wavelength 546.1000 (NM) of an optical system (700) according to one embodiment of the present disclosure, where 'S' exemplifies a sagittal plane and 'T' exemplifies a tangential plane or meridional plane. FIG. 10d is a graph showing distortion for light of wavelength 546.1000 (NM) of an optical system (700) according to one embodiment of the present disclosure.

[0197] [Example 6]

[0198] FIG. 11a is a schematic diagram showing an optical system according to one embodiment of the present disclosure. FIG. 11b is a graph showing the spherical aberration of the optical system of FIG. 11a according to one embodiment disclosed in this document. FIG. 11c is a graph showing the astigmatism of the optical system of FIG. 11a according to one embodiment disclosed in this document. FIG. 11d is a graph showing the distortion rate of the optical system of FIG. 11a according to one embodiment disclosed in this document.

[0199] In the present disclosure, the configuration of the optical system (800) according to the embodiments of FIGS. 11a to 11d may be at least partially identical or similar to the configuration of the optical system (300) according to the embodiments of FIGS. 6a to 6d. The description regarding the first lens (L1), second lens (L2), third lens (L3), fourth lens (L4), fifth lens (L5), aperture (sto), filter member (F), and / or image sensor (IS) of the optical system (300) according to the embodiments of FIGS. 6a to 6d may be applied identically or similarly to the first lens (L1), second lens (L2), third lens (L3), fourth lens (L4), fifth lens (L5), aperture (sto), filter member (F), and / or image sensor (IS) of the optical system (800) according to the embodiments of FIGS. 11a to 11d.

[0200] In one embodiment, the optical system (800) may be manufactured with the specifications exemplified in the following [Table 17] and may have the aspherical coefficients of [Table 18] and [Table 19]. In [Table 17], surface 1 may be a measured value of the air gap. In [Table 17], surface 'n' (where n is 2 to 11) may correspond to Sn (where n is 2 to 11), which is a lens surface that is the subject side or image side of the lenses (L1, L2, L3, L4, L5) of the present disclosure. In [Table 11], surface 'n' (where n is 12 and 13) may correspond to the subject side (S12) and image side (S13) of the filter member (F).

[0201] Surface Radius Thickness Glass H-Ape Effective Focal Length (EFL) Subject (O) infinity 400-1 infinity-0.15 0-0.50 320.98 40.199 544.56 0.51 33.37 31.95 80.167-0.42 4 (Aperture (sto)) 279.11 30.18 3544.56 0.399 7.58 5-4.21 10.100-0.41 06-4.179 0.16 368 0.18 0.48 0-14.17 7-7.41 90.265-0.6008-1.3130.410544.560.7541.679-0.5980.264-0.908101.2800.232535.561.470-1.66110.4 920.300-1.82612infinity0.110BSC7_HOYA2.13813infinity0.371-2.191Imaging surface (img)infinity0.035-2.554

[0202] Tables 18 and 19 below describe the aspherical coefficients of the lenses (L1, L2, L3, L4, L5) of the optical system (800), and the aspherical coefficients can be calculated using the above-described [Equation 1] by referring to Tables 3 and 4.

[0203] 표면(Surface)S2S3S4S5S6K(Conic)7.189E-019.296E+009.800E+011.643E+016.678E+01A(4th)-5.794E-019.708E-01-8.957E-01-1.095E+00-1.618E+00B(6th)4.207E+01-1.351E+028.651E+015.660E+00-1.419E+00C(8th)-2.004E+039.006E+03-7.670E+031.252E+025.461E+01D(10th)5.929E+04-3.841E+054.275E+05-2.263E+04-1.077E+03E(12th)-1.174E+061.114E+07-1.586E+079.871E+051.183E+04F(14th)1.628E+07-2.283E+084.059E+08-2.362E+07-7.149E+04G(16th)-1.623E+083.382E+09-7.345E+093.606E+082.369E+05H(18th)1.180E+09-3.660E+109.519E+10-3.723E+09-4.039E+05J(20th)-6.263E+092.892E+11-8.858E+112.662E+102.784E+05K(22th)2.403E+10-1.649E+125.865E+12-1.322E+110.000E+00L(24th)-6.487E+106.601E+12-2.695E+134.473E+110.000E+00M(26th)1.169E+11-1.760E+138.163E+13-9.832E+110.000E+00N(28th)-1.261E+112.804E+13-1.465E+141.264E+120.000E+00O(30th)6.167E+10-2.019E+131.180E+14-7.211E+110.000E+00

[0204] 표면(Surface)S7S8S9S10S11K(Conic)0.000E+000.000E+00-8.100E-01-2.451E+01-3.759E+00A(4th)-8.585E-012.576E-015.570E-01-4.203E-01-6.901E-01B(6th)-1.469E+00-4.060E+00-1.302E-01-2.478E+001.079E+00C(8th)2.215E+014.273E+01-3.067E+011.995E+014.180E-01D(10th)-1.642E+02-4.249E+024.128E+02-7.612E+01-6.657E+00E(12th)9.635E+023.860E+03-3.152E+031.845E+021.685E+01F(14th)-3.688E+03-2.877E+041.617E+04-3.067E+02-2.444E+01G(16th)7.876E+031.630E+05-5.862E+043.623E+022.358E+01H(18th)-8.345E+03-6.693E+051.532E+05-3.095E+02-1.591E+01J(20th)3.381E+031.946E+06-2.887E+051.918E+027.630E+00K(22th)0.000E+00-3.953E+063.860E+05-8.536E+01-2.590E+00L(24th)0.000E+005.476E+06-3.554E+052.655E+016.086E-01M(26th)0.000E+00-4.927E+062.135E+05-5.473E+00-9.412E-02N(28th)0.000E+002.594E+06-7.515E+046.710E-018.612E-03O(30th)0.000E+00-6.060E+051.173E+04-3.701E-02-3.531E-04

[0205] FIG. 11b is a graph showing the spherical aberration of an optical system (800) according to one embodiment of the present disclosure, wherein the horizontal axis represents the coefficient of longitudinal spherical aberration and the vertical axis represents the distance from the optical axis (OI) normalized, and shows the change in longitudinal spherical aberration according to the wavelength of light. Longitudinal spherical aberration is shown for light with wavelengths of, for example, 656.3000 (NM, nanometer), 587.6000 (NM), 546.1000 (NM), 486.1000 (NM), and 435.8000 (NM). FIG. 11c is a graph showing astigmatic field curves for light of wavelength 546.1000 (NM) of an optical system (800) according to one embodiment of the present disclosure, where 'S' exemplifies a sagittal plane and 'T' exemplifies a tangential plane or meridional plane. FIG. 11d is a graph showing distortion for light of wavelength 546.1000 (NM) of an optical system (800) according to one embodiment of the present disclosure.

[0206] [Example 7]

[0207] FIG. 12a is a schematic diagram showing an optical system according to one embodiment of the present disclosure. FIG. 12b is a graph showing the spherical aberration of the optical system of FIG. 12a according to one embodiment disclosed in this document. FIG. 12c is a graph showing the astigmatism of the optical system of FIG. 12a according to one embodiment disclosed in this document. FIG. 12d is a graph showing the distortion rate of the optical system of FIG. 12a according to one embodiment disclosed in this document.

[0208] In the present disclosure, the configuration of the optical system (900) according to the embodiments of FIGS. 12a to 12d may be at least partially identical or similar to the configuration of the optical system (300) according to the embodiments of FIGS. 6a to 6d. The description of the first lens (L1), second lens (L2), third lens (L3), fourth lens (L4), fifth lens (L5), aperture (sto), filter member (F), and / or image sensor (IS) of the optical system (300) according to the embodiments of FIGS. 6a to 6d may be applied identically or similarly to the first lens (L1), second lens (L2), third lens (L3), fourth lens (L4), fifth lens (L5), aperture (sto), filter member (F), and / or image sensor (IS) of the optical system (900) according to the embodiments of FIGS. 12a to 12d.

[0209] In one embodiment, the optical system (900) may be manufactured with the specifications exemplified in the following [Table 20] and may have the aspherical coefficients of [Table 21] and [Table 22]. In [Table 20], surface 1 and surface 6 may be measured values ​​of the air gap. In [Table 20], surface 'n' (where n is 2 to 5, 7 to 12) may correspond to Sn (where n is 2 to 5, 7 to 12), which is a lens surface that is the subject side or image side of the lenses (L1, L2, L3, L4, L5) of the present disclosure. In [Table 20], surface 'n' (where n is 13 and 14) may correspond to the subject side (S13) and image side (S14) of the filter member (F).

[0210] Surface Radius Thickness Glass H-Ape Effective Focal Length (EFL) Subject (O) infinity 400- 1 infinity -0.25000 - 20.8347 40.425405 44.56 0.636 2.1443 2.38 1500.0539 1 -0.528 4 (Aperture (sto)) 72.81446 0.152546 80.18 0.509 -9.7205 6.12918 0.0928 2 -0.456 6 infinity 0.11123 -0.454 7-7.843040.17553671.190.543-41.3148-10.986060.29154-0.671 941.769360.22312567.370.9206.04010-3.749910.42187-1.124 1111.315310.27195535.561.603-2.603121.234060.30000-1.731 13infinity0.11000517.642.467infinity14infinity0.190 2.520 Imaging surface (img)infinity0.17011-

[0211] Tables 21 and 22 below describe the aspherical coefficients of the lenses (L1, L2, L3, L4, L5) of the optical system (900), and the aspherical coefficients can be calculated using the above-described [Equation 1] by referring to Tables 3 and 4.

[0212] 표면(Surface)S2S3S4S5S7K(Conic)-2.2661E-019.0565E+000.0000E+00-2.2675E+010.0000E+00A(4th)-4.8696E-02-4.3811E-01-9.2361E-022.4849E-01-4.3132E-01B(6th)7.0755E-01-8.4990E-011.1962E+002.1809E+00-4.9876E+00C(8th)-3.8572E+003.6443E+008.9672E-015.7557E+007.6092E+01D(10th)9.4952E+00-5.9512E+000.0000E+00-4.8801E+01-5.9190E+02E(12th)-1.3629E+010.0000E+000.0000E+001.4632E+022.4294E+03F(14th)0.0000E+000.0000E+000.0000E+000.0000E+00-4.8925E+03G(16th)0.0000E+000.0000E+000.0000E+000.0000E+003.7939E+03H(18th)0.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00J(20th)0.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00K(22th)0.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00L(24th)0.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00M(26th)0.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00N(28th)0.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00O(30th)0.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00

[0213] 표면(Surface)S8S9S10S11S12K(Conic)0.0000E+000.0000E+000.0000E+002.5563E+01-2.8780E+00A(4th)-5.0723E-011.4293E-011.4182E-01-1.0816E+00-9.4516E-01B(6th)-1.4375E+00-6.9770E+00-1.8451E+009.5267E-011.2759E+00C(8th)2.4126E+019.4687E+019.1366E+001.0459E+00-7.1412E-02D(10th)-2.3198E+02-9.7791E+02-3.0558E+01-6.6109E+00-5.4122E+00E(12th)1.4116E+037.0845E+036.1157E+011.5512E+011.5723E+01F(14th)-5.4555E+03-3.6217E+04-7.2817E+01-2.1035E+01-2.5715E+01G(16th)1.2897E+041.3166E+055.1164E+011.7902E+012.8134E+01H(18th)-1.6683E+04-3.4222E+05-1.9690E+01-9.9039E+00-2.1621E+01J(20th)8.9335E+036.3524E+053.2065E+003.5735E+001.1833E+01K(22th)0.0000E+00-8.3276E+050.0000E+00-8.1384E-01-4.5847E+00L(24th)0.0000E+007.5145E+050.0000E+001.0647E-011.2274E+00M(26th)0.0000E+00-4.4357E+050.0000E+00-6.1091E-03-2.1565E-01N(28th)0.0000E+001.5410E+050.0000E+000.0000E+002.2341E-02O(30th)0.0000E+00-2.3888E+040.0000E+000.0000E+00-1.0332E-03

[0214] FIG. 12b is a graph showing the spherical aberration of an optical system (900) according to one embodiment of the present disclosure, wherein the horizontal axis represents the coefficient of longitudinal spherical aberration and the vertical axis represents the distance from the optical axis (OI) normalized, showing the change in longitudinal spherical aberration according to the wavelength of light. Longitudinal spherical aberration is shown for light with wavelengths of, for example, 656.3000 (NM, nanometer), 587.6000 (NM), 546.1000 (NM), 486.1000 (NM), and 435.8000 (NM). FIG. 12c is a graph showing astigmatic field curves for light of wavelength 546.1000 (NM) of an optical system (900) according to one embodiment of the present disclosure, where 'S' exemplifies a sagittal plane and 'T' exemplifies a tangential plane or meridional plane. FIG. 12d is a graph showing distortion for light of wavelength 546.1000 (NM) of an optical system (900) according to one embodiment of the present disclosure. An optical system comprising multiple lenses can be applied to a camera module of various electronic devices (e.g., smartphones, tablet PCs, smartwatches, drones). Such an optical system (e.g., a front camera) can be placed below a display. Since these optical systems are positioned beneath the display, the size of the placement space may be constrained due to their positional relationship with surrounding electronic components; therefore, it is necessary to implement a slimmed-down (or thinned) structure with reduced overall thickness (or height) to be suitable for application in overall slimmed-down electronic devices. For example, these optical systems (e.g., a front camera) can be placed in a receiving portion in the form of a through-hole or recess formed in a part of the display.It may be advantageous to reduce the size of the receiving portion in order to expand the screen display area of ​​the display and improve the exterior design so that the receiving portion is not conspicuously visible from the exterior of the display. For example, if the thickness of the first lens is not thick, other lenses may also be placed in the optical hole, but if the size (or effective diameter) of the second lens is not sufficiently small, the size of the receiving portion of the display may increase due to the limitations of the design freedom of the lens barrel (or flange) structure supporting the lenses (e.g., the head diameter of the lens barrel (e.g., HD in FIG. 5) increases). Generally, an optical system comprising five or more lenses may be disadvantageous for slimming down the optical system due to a relatively small angle of view, a relatively small chief ray angle (CRA), and / or a distance (BFL) from the vertex of the image side of the relatively long last lens (e.g., the image side (S12) of the fifth lens (L5) in FIG. 6a, FIG. 7a, FIG. 8a, FIG. 9a, FIG. 10a, FIG. 12a, or the image side (S11) of the fifth lens (L5) in FIG. 11a) to the image plane (img) of the image sensor (IS).

[0215] According to one embodiment of the present disclosure, an optical system may be provided that is easy to mount on a miniaturized and / or lightweight electronic device, such as a smartphone, and can contribute to the expansion of optical functions or improvement of optical performance of the electronic device, in order to at least resolve the aforementioned problems and / or disadvantages and at least provide the advantages described below.

[0216] According to embodiments of the present disclosure, an optical system (e.g., a front camera) positioned below a display can be provided, which has a slim structure that reduces the overall height (or thickness) of the optical system, while reducing the camera exposure area visible to the front of the display to contribute to the expansion of the display area, thereby providing an optical system suitable for application to a large-screen display. The optical system according to embodiments of the present disclosure can have a wide high-field-of-view (HFOV) of about 41 degrees or more and less than about 53 degrees, and accordingly can acquire a wide image. An optical system according to embodiments of the present disclosure may be configured such that the distance (BFL) from the vertex of the image side surface (S12) of the fifth lens (L5) in FIG. 6a, FIG. 7a, FIG. 8a, FIG. 9a, FIG. 10a, FIG. 12a or FIG. 11a of the fifth lens (L5) to the image plane (img) of the image sensor (IS) is smaller than about 0.85 mm, and may be configured to have a structure having a chief ray angle (CRA) of about 38 degrees or more, thereby having a slimmed-down (or thinned) structure.

[0217] According to one embodiment of the present disclosure, an optical system may be provided for implementing a bright wide-angle optical device (e.g., a front camera) with good resolution and high pixel count, while being miniaturized and / or slimmed down so as to be suitable for placement in a through hole or recess formed in a display. In the optical system according to the embodiments of the present disclosure, the effective diameter of the second lens may be smaller than the effective diameter of the subject side surface (S2) of the first lens (L1), and accordingly, a relatively small head diameter (e.g., L2ED in FIG. 5) may be formed, thereby reducing the camera exposure area visible to the front of the display and contributing to the expansion of the display area, making it suitable for application to a large-screen display.

[0218] The technical problems to be solved by the disclosure of this document are not limited to those mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description in this document.

[0219] The effects obtainable from the disclosure of this document are not limited to those mentioned above, and other unmentioned effects will be clearly understood by a person skilled in the art to which this document belongs from the description in this document.

[0220] According to one embodiment of the present disclosure, an electronic device (101) including an optical system (300; 400; 500; 600; 700; 800; 900) may be provided. The above optical system may include a lens group (G) comprising at least five lenses arranged sequentially along an optical axis (OI) in a direction from the object (O) side toward the image (I) side, the lens group comprising a first lens (L1) having positive refractive power and a meniscus shape convex toward the object side, a second lens (L2) having negative refractive power, a third lens (L3) having refractive power, a fourth lens (L4) having positive refractive power and formed convex toward the image side, and a fifth lens (L5) having negative refractive power and a shape convex toward the object side and concave toward the image side, an aperture (sto) disposed between the first lens and the third lens, and an image sensor comprising an image plane (img) on ​​which an image (I) is formed. The effective aperture (L2ED) of the second lens may be smaller than the effective aperture (L1ED) of the subject side surface (S2) of the first lens. The optical system may satisfy the following [Equation 1] and [Equation 2].

[0221] [Equation 1]

[0222] (f / ImgH)*TTL < 3

[0223] [Equation 2]

[0224] BFL < 0.85mm

[0225] (Here, f(focal length) in [Equation 1] is the focal length of the optical system, ImgH is the height of the image sensor, TTL is the distance from the first lens to the imaging plane, and BFL in [Equation 2] is the distance from the image side surface of the fifth lens to the imaging plane.)

[0226] According to one embodiment, the half-field of view (HFOV) of the optical system may be greater than 41 degrees and less than 53 degrees.

[0227] According to one embodiment, the Chief ray Angle (CRA) of the optical system may be greater than 38 degrees and less than 45 degrees.

[0228] According to one embodiment, the optical system can satisfy the following [Equation 3].

[0229] [Equation 3]

[0230] 0.6 < CT4 / CT5 < 1.9

[0231] (Here, CT4 is the center thickness of the fourth lens, and CT5 is the center thickness of the fifth lens)

[0232] According to one embodiment, the optical system may satisfy the following [Equation 4] or [Equation 5].

[0233] [Equation 4]

[0234] 0.6 < CT4 / CT5 < 1

[0235] [Equation 5]

[0236] 1.3 < CT4 / CT5 < 1.9

[0237] (Here, CT4 is the center thickness of the fourth lens, and CT5 is the center thickness of the fifth lens)

[0238] According to one embodiment, a display (201) may be further included. The optical system may be arranged so that light passing through a portion of the display is incident on the first lens.

[0239] According to one embodiment, the display may include a receiving portion comprising at least one of a through hole or a recess in which at least a part of the optical system is received in the portion of the portion.

[0240] According to one embodiment, the optical system further includes a lens barrel (10) formed to support the edge of the lens group, and the diameter (HD) of the portion of the lens barrel facing the subject side of the first lens may be smaller than the diameter of the receiving portion.

[0241] According to one embodiment, at least one of the subject side surface or image side surface of at least one of the lenses may be aspherical.

[0242] According to one embodiment, the optical system may further include a filter member (F) disposed between the fifth lens and the image sensor and configured to block infrared rays.

[0243] According to one embodiment of the present disclosure, an optical system (300; 400; 500; 600; 700; 800; 900) may be provided. The above optical system may include an image sensor comprising a lens group (G) comprising at least five lenses arranged sequentially along an optical axis (OI) in a direction from the object (O) side toward the image (I) side, the lens group comprising a first lens (L1) having positive refractive power and a meniscus shape convex toward the object side, a second lens (L2) having negative refractive power, a third lens (L3) having refractive power, a fourth lens (L4) having positive refractive power and formed convex toward the image side, and a fifth lens (L5) having negative refractive power and a shape convex toward the object side and concave toward the image side, and an image sensor comprising an image plane (img) on ​​which an image (I) is formed. The effective diameter (L2ED) of the second lens may be smaller than the effective diameter (L1ED) of the object side surface (S2) of the first lens. The above optical system can satisfy the following [Equation 1] and [Equation 2].

[0244] [Equation 1]

[0245] (f / ImgH)*TTL < 3

[0246] [Equation 2]

[0247] BFL < 0.85mm

[0248] (Here, f(focal length) in [Equation 1] is the focal length of the optical system, ImgH is the height of the image sensor, TTL is the distance from the first lens to the imaging plane, and BFL in [Equation 2] is the distance from the image side surface of the fifth lens to the imaging plane.)

[0249] According to one embodiment, the half-field of view (HFOV) of the optical system may be greater than 41 degrees and less than 53 degrees.

[0250] According to one embodiment, the Chief ray Angle (CRA) of the optical system may be greater than 38 degrees and less than 45 degrees.

[0251] According to one embodiment, the optical system can satisfy the following [Equation 3].

[0252] [Equation 3]

[0253] 0.6 < CT4 / CT5 < 1.9

[0254] (Here, CT4 is the center thickness of the fourth lens, and CT5 is the center thickness of the fifth lens)

[0255] According to one embodiment, the optical system may satisfy the following [Equation 4] or [Equation 5].

[0256] [Equation 4]

[0257] 0.6 < CT4 / CT5 < 1

[0258] [Equation 5]

[0259] 1.3 < CT4 / CT5 < 1.9

[0260] (Here, CT4 is the center thickness of the fourth lens, and CT5 is the center thickness of the fifth lens)

[0261] According to one embodiment, the optical system may further include an aperture (sto) disposed between the first lens and the third lens.

[0262] According to one embodiment, at least one of the subject side surface or image side surface of at least one of the lenses may be aspherical.

[0263] According to one embodiment, the optical system may further include a filter member (F) disposed between the fifth lens and the image sensor and configured to block infrared rays.

[0264] According to one embodiment, an electronic device may be provided that further comprises an optical system and a display (201) according to the above-described embodiment(s). The optical system may be arranged so that light passing through a portion of the display is incident on the first lens.

[0265] According to one embodiment, the display may include a receiving portion comprising at least one of a through hole or a recess in which at least a part of the optical system is received in the portion of the portion.

[0266] One embodiment disclosed in this document should be understood as an example rather than as limiting the disclosure. It will be obvious to those skilled in the art that various changes in form and detailed configuration may be made without departing from the whole context of the disclosure, including the appended claims and their equivalents.

[0267] An electronic device according to one embodiment disclosed in this document may be of various forms. The electronic device may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a consumer electronics device. The electronic device according to the embodiment of this document is not limited to the aforementioned devices.

[0268] The embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to a specific embodiment, and should be understood to include various modifications, equivalents, or substitutions of said embodiment. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of said items unless the relevant context clearly indicates otherwise. In this disclosure, phrases such as "A or B," "at least one of A and B," "at least one of A or B," "A, B or C," "at least one of A, B and C," and "at least one of A, B, or C" may each include any one of the items listed together in the corresponding phrase, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used simply to distinguish said components from other said components and do not limit said components in any other aspect (e.g., importance or order). Where any (e.g., 1st) component is referred to as "coupled" or "connected" to another (e.g., 2nd) component, with or without the terms "functionally" or "communicationly," it means that said any component may be connected to said other component directly (e.g., via a wire), wirelessly, or through a third component.

[0269] As used in one embodiment of this document, the term “module” may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit, for example. A module may be a component formed integrally, or a minimum unit of said component or a part thereof that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0270] One embodiment of the present document may be implemented as software (e.g., program (140)) comprising one or more instructions stored in a storage medium (e.g., internal memory (136) or external memory (138)) readable by a machine (e.g., electronic device (101)). For example, a processor (e.g., processor (120)) of the machine (e.g., electronic device (101)) may call at least one of the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code that can be executed by an interpreter. The storage medium readable by the machine may be provided in the form of a non-transitory storage medium. Here, 'non-temporary' simply means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily.

[0271] According to one embodiment, the method according to one embodiment disclosed herein may be provided by being included in a computer program product. The computer program product may be traded between a seller and a buyer as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., compact disc read-only memory (CD-ROM)) or an application store (e.g., Play Store). TM It can be distributed online (e.g., downloaded or uploaded) through ) or directly between two user devices (e.g., smartphones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily created on a device-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

[0272] According to one embodiment, each component (e.g., module or program) of the components described above may include a singular or multiple entities, and some of the multiple entities may be separated and placed in other components. According to one embodiment, one or more of the components or operations among the aforementioned components may be omitted, or one or more other components or operations may be added. Generally or additionally, multiple components (e.g., module or program) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the multiple components in the same or similar manner as those performed by the corresponding component among the multiple components prior to integration. According to one embodiment, operations performed by the module, program, or other components may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

1. In an electronic device (101) comprising an optical system (300; 400; 500; 600; 700; 800; 900), The above optical system is, A lens group (G) comprising at least five lenses arranged sequentially along an optical axis (OI) in a direction from the object (O) side toward the image (I) side, the lenses including a first lens (L1) having positive refractive power and a meniscus shape convex toward the object side, a second lens (L2) having negative refractive power, a third lens (L3) having refractive power, a fourth lens (L4) having positive refractive power and formed convex toward the image side, and a fifth lens (L5) having negative refractive power and a shape convex toward the object side and concave toward the image side; An aperture (sto) disposed between the first lens and the third lens; and It includes an image sensor comprising an image plane (img) on ​​which an image (I) is formed, and The effective diameter (L2ED) of the second lens is smaller than the effective diameter (L1ED) of the subject side surface (S2) of the first lens, and The above optical system satisfies the following [Equation 1] and [Equation 2], [Equation 1] (f / ImgH)*TTL < 3 [Equation 2] BFL < 0.85mm (Here, f(focal length) in [Equation 1] is the focal length of the optical system, ImgH is the height of the image sensor, TTL is the distance from the first lens to the image plane, and BFL in [Equation 2] is the distance from the image side surface of the fifth lens to the image plane), electronic device.

2. In Paragraph 1, An electronic device having a high field of view (HFOV) of the above optical system greater than 41 degrees and less than 53 degrees.

3. In Paragraph 1 or 2, An electronic device in which the Chief ray Angle (CRA) of the above optical system is greater than 38 degrees and less than 45 degrees.

4. In any one of paragraphs 1 to 3, The above optical system is an electronic device satisfying the following [Equation 3]. [Equation 3] 0.6 < CT4 / CT5 < 1.9 (Here, CT4 is the center thickness of the fourth lens, and CT5 is the center thickness of the fifth lens) 5. In any one of paragraphs 1 through 4, The above optical system is an electronic device satisfying the following [Equation 4] or [Equation 5]. [Equation 4] 0.6 < CT4 / CT5 < 1 [Equation 5] 1.3 < CT4 / CT5 < 1.9 (Here, CT4 is the center thickness of the fourth lens, and CT5 is the center thickness of the fifth lens) 6. In any one of paragraphs 1 through 5, It further includes a display (201), The above optical system is an electronic device arranged so that light passing through a portion of the display is incident on the first lens.

7. In Paragraph 6, The electronic device, wherein the display comprises a receiving portion including at least one of a through hole or a recess in which at least a portion of the optical system is received in the portion of the above portion.

8. In Paragraph 7, The above optical system further includes a lens barrel (10) formed to support the edge of the lens group, and the diameter (HD) of the portion of the lens barrel facing the subject side of the first lens is smaller than the diameter of the receiving portion, an electronic device.

9. In any one of paragraphs 1 through 8, An electronic device in which at least one of the subject side surface or image side surface of at least one of the above lenses is aspherical.

10. In any one of paragraphs 1 through 9, The above optical system further comprises a filter member (F) positioned between the fifth lens and the image sensor and configured to block infrared rays, an electronic device.

11. In an optical system (300; 400; 500; 600; 700; 800; 900), A lens group (G) comprising at least five lenses arranged sequentially along an optical axis (OI) in a direction from the object (O) side toward the image (I) side, the lenses including a first lens (L1) having positive refractive power and a meniscus shape convex toward the object side, a second lens (L2) having negative refractive power, a third lens (L3) having refractive power, a fourth lens (L4) having positive refractive power and formed convex toward the image side, and a fifth lens (L5) having negative refractive power and a shape convex toward the object side and concave toward the image side; and It includes an image sensor comprising an image plane (img) on ​​which an image (I) is formed, and The effective diameter (L2ED) of the second lens is smaller than the effective diameter (L1ED) of the subject side surface (S2) of the first lens, and Satisfying the following [Equation 1] and [Equation 2], [Equation 1] (f / ImgH)*TTL < 3 [Equation 2] BFL < 0.85mm (Here, f(focal length) in [Equation 1] is the focal length of the optical system, ImgH is the height of the image sensor, TTL is the distance from the first lens to the image plane, and BFL in [Equation 2] is the distance from the image side surface of the fifth lens to the image plane), optical system.

12. In Paragraph 11, An optical system having a high field of view (HFOV) greater than 41 degrees and less than 53 degrees.

13. In Article 11 or Article 12, An optical system having a Chief ray Angle (CRA) greater than 38 degrees and less than 45 degrees.

14. In any one of paragraphs 11 through 13, An optical system satisfying the following [Equation 3]. [Equation 3] 0.6 < CT4 / CT5 < 1.9 (Here, CT4 is the center thickness of the fourth lens, and CT5 is the center thickness of the fifth lens) 15. In any one of paragraphs 11 through 14, An optical system satisfying the following [Equation 4] or [Equation 5]. [Equation 4] 0.6 < CT4 / CT5 < 1 [Equation 5] 1.3 < CT4 / CT5 < 1.9 (Here, CT4 is the center thickness of the fourth lens, and CT5 is the center thickness of the fifth lens)

Images