Optical system and electronic device comprising same

Abstract

According to one embodiment of the present disclosure, an electronic device may be provided. The electronic device may comprise an optical system. The optical system may comprise: a lens group including at least five lenses arranged along an optical axis (O) in a direction from an object side toward an image side, the lens group including a first lens, a second lens, a third lens having refractive power and including an image-side surface convex toward the image side, a fourth lens, and a fifth lens having positive or negative refractive power; a lens barrel formed to accommodate the lens group; an image sensor including an image-forming surface on which an image is formed; and an aperture stop disposed in the lens barrel. In the optical system, the total track length (TTL) from the aperture stop to the image-forming surface may be greater than or equal to the distance from an object-side surface (S3) of the first lens to the image-forming surface, the overall field of view of the optical system may be 76 or more, and the F-number of the optical system may be 2.4 or less.

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 previously dominant, digital cameras and video cameras equipped with solid-state image sensors, such as CCD (charge-coupled device) and CMOS (complementary metal-oxide semiconductor), have recently become widespread. Optical devices employing solid-state image sensors (CCD or CMOS) are gradually replacing film-based optical devices because they facilitate image storage, reproduction, and transfer compared to film-based optical devices.

[0003] In order to obtain 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 with a high pixel count. The optical system may have, for example, a low F-number (Fno) and low aberration, thereby enabling the acquisition of high-quality (high-resolution) images and / or videos. 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 more pixels an image sensor includes, the higher the pixel count, and the higher the pixel count, the higher the resolution (higher resolution) images and / or videos can be obtained. In order to implement a high-pixel image sensor within a limited mounting space in an electronic device, a plurality of very small pixels, for example, pixels on the order of micrometers, may be arranged. Recently, image sensors containing tens of millions to hundreds of millions of pixels on the order of micrometers have been mounted on portable electronic devices such as smartphones and tablets. These high-performance optical devices can have the effect of attracting users to purchase electronic devices.

[0004] The above information may be provided as background art to aid in understanding the present disclosure. No claim or determination is made as to whether any of the above is applicable as prior art related to the present disclosure.

[0005] According to one embodiment of the present disclosure, an electronic device may be provided. The electronic device may include an optical system. The optical system may include a lens group including at least five lenses arranged along an optical axis (O) in a direction from a subject side toward an image side, the lens group including a first lens, a second lens, a third lens having a refractive power and including an image-side surface convex toward the image side, a fourth lens, and a fifth lens having a positive or negative refractive power, a lens barrel formed to accommodate the lens group, an image sensor including an imaging surface on which an image is formed, and an aperture arranged in the lens barrel. The optical system may satisfy the following [Equation 1], [Equation 2], [Equation 3], and [Equation 7].

[0006] [Formula 1]

[0007] ASTL - TTL 0

[0008] [Formula 2]

[0009] FOV 76 degrees

[0010] [Formula 3]

[0011] f / EPD 2.4

[0012] [Formula 7]

[0013] SD / TTL 0.9

[0014] (Here, ASTL of [Formula 1] is the distance from the aperture to the image plane, TTL (total track length) is the distance from the subject-side surface (S3) of the first lens to the image plane, FOV (field of view) of [Formula 2] is the total angle of view of the optical system, f (focal length) of [Formula 3] is the synthetic focal length of the optical system, EPD (entrance pupil diameter) is the entrance pupil of the optical system, SD is the distance from the subject-side surface of the first lens to the image-side surface (S12) of the fifth lens, and TTL is the distance from the subject-side surface of the first lens to the image plane).

[0015] According to one embodiment of the present disclosure, an optical system may be provided. The optical system may include a lens group including at least five lenses arranged along an optical axis (O) in a direction from a subject side toward an image side, the lens group including a first lens, a second lens, a third lens having refractive power and including an image-side surface convex toward the image side, a fourth lens having negative refractive power, and a fifth lens having positive or negative refractive power, an image sensor including an imaging surface on which an image is formed, and an aperture. The Abbe number of the fourth lens at 587.6 nm may be greater than 17 and less than 40. The optical system may satisfy the following [Equation 1], [Equation 2], [Equation 3], and [Equation 5].

[0016] [Formula 1]

[0017] ASTL - TTL 0

[0018] [Formula 2]

[0019] FOV 76 degrees

[0020] [Formula 3]

[0021] f / EPD 2.4

[0022] [Formula 5]

[0023] 17 < V4 < 40 (wherein, ASTL in [Formula 1] is the distance from the aperture to the imaging plane, TTL (total track length) is the distance from the subject side (S3) of the first lens to the imaging plane, FOV (field of view) in [Formula 2] is the total angle of view of the optical system, f (focal length) in [Formula 3] is the composite focal length of the optical system, EPD (entrance pupil diameter) is the entrance pupil of the optical system, and V4 is the Abbe number of the fourth lens at a wavelength of 587.6 nm)

[0024] FIG. 1 is a block diagram of an electronic device within a network environment according to one embodiment of the present disclosure.

[0025] FIG. 2 is a block diagram illustrating a camera module according to one embodiment of the present disclosure.

[0026] FIG. 3 is a front perspective view of an electronic device according to one embodiment of the present disclosure.

[0027] FIG. 4 is a rear perspective view of an electronic device according to one embodiment of the present disclosure.

[0028] FIG. 5A is a cross-sectional view showing a portion of an optical system and a portion of a lens barrel according to one embodiment of the present disclosure.

[0029] FIG. 5b is a graph showing spherical aberration of the optical system of FIG. 5a according to one embodiment disclosed in this document.

[0030] FIG. 5c is a graph showing astigmatism of the optical system of FIG. 5a according to one embodiment disclosed in the present document.

[0031] FIG. 5d is a graph showing the distortion rate of the optical system of FIG. 5a according to one embodiment disclosed in this document.

[0032] FIG. 6A is a schematic diagram showing a lens according to one embodiment of the present disclosure.

[0033] FIG. 6b is a graph showing spherical aberration of the optical system of FIG. 5a according to one embodiment disclosed in this document.

[0034] FIG. 6c is a graph showing astigmatism of the optical system of FIG. 5a according to one embodiment disclosed in the present document.

[0035] FIG. 6d is a graph showing the distortion rate of the optical system of FIG. 5a according to one embodiment disclosed in this document.

[0036] FIG. 7a is a schematic diagram showing an optical system according to one embodiment of the present disclosure.

[0037] FIG. 7b is a graph showing spherical aberration of the optical system of FIG. 7a according to one embodiment disclosed in this document.

[0038] FIG. 7c is a graph showing astigmatism of the optical system of FIG. 7a according to one embodiment disclosed in the present document.

[0039] FIG. 7d is a graph showing the distortion rate of the optical system of FIG. 7a according to one embodiment disclosed in this document.

[0040] FIG. 8A is a schematic diagram showing an optical system according to one embodiment of the present disclosure.

[0041] FIG. 8b is a graph showing spherical aberration of the optical system of FIG. 8a according to one embodiment disclosed in this document.

[0042] FIG. 8c is a graph showing astigmatism of the optical system of FIG. 8a according to one embodiment disclosed in the present document.

[0043] FIG. 8d is a graph showing the distortion rate of the optical system of FIG. 8a according to one embodiment disclosed in this document.

[0044] FIG. 9a is a schematic diagram showing an optical system according to one embodiment of the present disclosure.

[0045] FIG. 9b is a graph showing spherical aberration of the optical system of FIG. 9a according to one embodiment disclosed in this document.

[0046] FIG. 9c is a graph showing astigmatism of the optical system of FIG. 9a according to one embodiment disclosed in the present document.

[0047] FIG. 9d is a graph showing the distortion rate of the optical system of FIG. 9a according to one embodiment disclosed in this document.

[0048] FIG. 10A is a schematic diagram showing an optical system according to one embodiment of the present disclosure.

[0049] FIG. 10b is a graph showing spherical aberration of the optical system of FIG. 10a according to one embodiment disclosed in this document.

[0050] FIG. 10c is a graph showing astigmatism of the optical system of FIG. 10a according to one embodiment disclosed in the present document.

[0051] FIG. 10d is a graph showing the distortion rate of the optical system of FIG. 10a according to one embodiment disclosed in this document.

[0052] FIG. 11A is a schematic diagram showing an optical system according to one embodiment of the present disclosure.

[0053] FIG. 11b is a graph showing spherical aberration of the optical system of FIG. 11a according to one embodiment disclosed in this document.

[0054] FIG. 11c is a graph showing astigmatism of the optical system of FIG. 11a according to one embodiment disclosed in this document.

[0055] FIG. 11d is a graph showing the distortion rate of the optical system of FIG. 11a according to one embodiment disclosed in this document.

[0056] Throughout the attached drawings, similar reference numbers may be assigned to similar parts, components and / or structures.

[0057] FIG. 1 is a block diagram of an electronic device (101) within a network environment (100) according to one embodiment disclosed in the present document. Referring to FIG. 1 , in the network environment (100), the electronic device (101) may communicate with the electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with at least one of the electronic device (104) or the server (108) via 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) via the server (108). According to one embodiment, the electronic device (101) may include a processor (120), a memory (130), an input module (150), an audio output module (155), a display module (160), an audio module (170), a sensor module (176), an interface (177), a connection terminal (178), a haptic module (179), a camera module (180), a power management module (188), a battery (189), a communication module (190), a subscriber identification module (196), or an antenna module (197). In one embodiment, the electronic device (101) may have at least one of these components (e.g., the connection terminal (178)) omitted, or one or more other components added. In one embodiment, some of these components (e.g., the sensor module (176), the camera module (180), or the antenna module (197)) may be integrated into one component (e.g., the display module (160)).

[0058] The processor (120) may, for example, execute software (e.g., a program (140)) to control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) and perform various data processing or calculations. According to one embodiment, as at least a part of the data processing or calculation, the processor (120) may store a command or data received from another component (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the command or data stored in the volatile memory (132), and store the resulting data in a non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor), or an auxiliary processor (123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together therewith. For example, if the electronic device (101) includes a main processor (121) and a secondary processor (123), the secondary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a specified function. The secondary processor (123) may be implemented separately from the main processor (121) or as a part thereof.

[0059] The auxiliary processor (123) may control at least a portion of functions or states associated with at least one component (e.g., a display module (160), a sensor module (176), or a communication module (190)) of the electronic device (101), for example, 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. In one embodiment, the auxiliary processor (123) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (180) or a communication module (190)). In one embodiment, the auxiliary processor (123) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, on the electronic device (101) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (108)). The learning algorithm can 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 can include multiple artificial neural network layers.The artificial neural network may be one of 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, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.

[0060] The memory (130) can store various data used by at least one component (e.g., processor (120) or sensor module (176)) of the electronic device (101). The data can include, for example, software (e.g., program (140)) and input data or output data for commands related thereto. The memory (130) can include volatile memory (132) or non-volatile memory (134).

[0061] The program (140) may be stored as software in the memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0062] The input module (150) can receive commands or data to be used in a component of the electronic device (101) (e.g., a processor (120)) from an external source (e.g., a user) of the electronic device (101). The input module (150) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0063] The audio output module (155) can output audio signals to the outside of the electronic device (101). The audio output module (155) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. In one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0064] The display module (160) can visually provide information to an external party (e.g., a 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 the device. In 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 a force generated by the touch.

[0065] The audio module (170) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150), output sound through the sound output module (155), or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (101).

[0066] The sensor module (176) can detect the operating status (e.g., power or temperature) of the electronic device (101) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one embodiment, the sensor module (176) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0067] The interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) with an external electronic device (e.g., the electronic device (102)). In 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.

[0068] The connection terminal (178) may include a connector through which the electronic device (101) may 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).

[0069] A haptic module (179) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. In one embodiment, the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0070] The camera module (180) can capture still images and videos. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0071] 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 a part of a power management integrated circuit (PMIC).

[0072] A battery (189) may power at least one component of the electronic device (101). In one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0073] The communication module (190) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may operate independently from the processor (120) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (190) may include a wireless communication module (192) (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (194) (e.g., a local area network (LAN) communication module, or a power line communication module). Among these communication modules, the corresponding communication module can communicate with an external electronic device via a first network (198) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (199) (e.g., a long-range communication network such as 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 can 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 verify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) by using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196).

[0074] The wireless communication module (192) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (192) can support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (192) can support various requirements specified in the electronic device (101), an external electronic device (e.g., the electronic device (104)), or a network system (e.g., the second network (199)). According to one embodiment, the wireless communication module (192) can support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for URLLC realization.

[0075] The antenna module (197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one embodiment, the antenna module may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). In 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 the first network (198) or the second network (199), may be selected from the plurality of antennas by, for example, the communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device through the selected at least one antenna. In one embodiment, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (197).

[0076] In one embodiment, the antenna module (197) may form a mmWave antenna module. In one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high-frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high-frequency band.

[0077] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).

[0078] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) via 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 executed in the electronic device (101) may be executed in one or more of the external electronic devices (102, 104, or 108). For example, when the electronic device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (101) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least a part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. 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 a neural network. According to one embodiment, the external electronic device (104) or the server (108) may be included in 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.

[0079] FIG. 2 is a block diagram (200) illustrating a camera module (290) (e.g., the camera module (180) of FIG. 1) according to one embodiment of the present disclosure. Referring to FIG. 2, the camera module (290) may include an optical system (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 optical system (280) may include an image sensor (230). The optical system (280) may collect light emitted from a subject that is a target of image capturing. The optical system (280) may include one or more lenses. According to one embodiment, the camera module (290) may include a plurality of optical systems (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 optical systems (280) may have the same lens properties (e.g., an angle of view, a focal length, an F-number, or an optical zoom), Alternatively, at least one optical system may have one or more lens properties that are different from the lens properties of the other optical systems. The optical system (280) may include, for example, a wide-angle lens or a telephoto lens.

[0080] The flash (220) can emit light used to enhance light emitted or reflected from a subject. According to one embodiment, the flash (220) can include one or more light-emitting diodes (e.g., red-green-blue (RGB) LED, white LED, infrared LED, or ultraviolet LED), or a xenon lamp. The image sensor (230) can acquire an image corresponding to the subject by converting light emitted or reflected from the subject and transmitted through the optical system (280) into an electrical signal. According to one embodiment, the image sensor (230) can include one image sensor selected from among image sensors having different properties, such as, for example, an RGB sensor, a black and white (BW) sensor, an IR sensor, or a UV sensor, a plurality of image sensors having the same property, or a plurality of image sensors having different properties. Each image sensor included in the image sensor (230) can be implemented using, for example, a CCD (charged coupled device) sensor or a CMOS (complementary metal oxide semiconductor) sensor.

[0081] The image stabilizer (240) can move at least one lens or image sensor (230) included in the optical system (280) in a specific direction or control the operating characteristics of the image sensor (230) (e.g., adjusting the read-out timing, etc.) in response to the movement of the camera module (290) or the electronic device (201) including the same. This allows compensating for at least some of the negative effects of the movement on the image being captured. In 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) by using a gyro sensor (not shown) or an acceleration sensor (not shown) disposed inside or outside the camera module (290). In one embodiment, the image stabilizer (240) can be implemented as, for example, an optical image stabilizer. The memory (250) can temporarily store at least a portion of the image acquired through the image sensor (230) for the next image processing task. For example, when image acquisition is delayed due to the shutter, or when multiple images are acquired at high speed, the acquired original image (e.g., 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. Thereafter, when a specified condition is satisfied (e.g., a user input or a system command), at least a portion of the original image stored in the memory (250) can be acquired and processed, for example, by the image signal processor (260). According to one embodiment, the memory (250) can be configured as at least a portion of a memory (e.g., the memory (130) of FIG. 1) or as a separate memory that operates independently therefrom.

[0082] The image signal processor (260) may perform one or more image processing operations on an image acquired through the image sensor (230) or an image stored in the 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 softening). Additionally or alternatively, the image signal processor (260) may perform control (e.g., exposure time control, readout timing control, etc.) on 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 the memory (250) for further processing or provided to an external component of the camera module (290) (e.g., the memory (130), the display module (160), the electronic device (102), the electronic device (104), or the server (108) of FIG. 1). According to one embodiment, the image signal processor (260) may be configured as at least a part of a processor (e.g., the processor (120) of FIG. 1) or may be configured as a separate processor that operates independently of the processor (120). When the image signal processor (260) is configured as a separate processor from the processor (120), at least one image processed by the image signal processor (260) may be displayed through the display module (160) as is or after undergoing additional image processing by the processor (120).

[0083] 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 properties 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.

[0084] FIG. 3 is a front perspective view of an electronic device according to one embodiment disclosed in the present document. FIG. 4 is a rear perspective view of an electronic device according to one embodiment disclosed in the present document.

[0085] The configuration of the electronic device (101) of FIGS. 3 and 4 may be all or part of the same as the configuration of the electronic device (101) of FIG. 1.

[0086] Referring to FIGS. 3 and 4 , an electronic device (101) according to one embodiment may include a housing (210) that includes a first side (or front side) (210A), a second side (or back side) (210B), and a side surface (210C) that surrounds a space between the first side (210A) and the second side (210B). In one embodiment (not shown), the housing (210) may refer to a structure that forms a portion of the first side (210A) of FIG. 2 , the second side (210B), and the side surface (210C) of FIG. 3 . According to one embodiment, the first side (210A) may be formed by a front plate (202) that is at least partially substantially transparent (e.g., a glass plate or a polymer plate including various coating layers). The second side (210B) may be formed by a substantially opaque back plate (211). The rear plate (211) may be formed of, for example, coated or colored glass, ceramic, polymer, metal (e.g., aluminum, stainless steel (STS), or magnesium), or a combination of at least two of the foregoing materials. The side surface (210C) may be formed by a side structure (or “side bezel structure”) (218) that is coupled to the front plate (202) and the rear plate (211) and comprises a metal and / or polymer. In one embodiment, the rear plate (211) and the side structure (218) may be formed integrally and comprise the same material (e.g., a metal material such as aluminum).

[0087] Although not shown, the front plate (202) may include a seamlessly extending region(s) that curves toward the rear plate (211) at least along a portion of an edge. In one embodiment, the front plate (202) (or the rear plate (211)) may include only one of the curved extending regions toward the rear plate (211) (or the front plate (202)) at one edge of the first surface (210A). In some embodiments, the front plate (202) or the rear plate (211) may be substantially flat, in which case it may not include a curved extending region. When it includes a curved extending region, the thickness of the electronic device (101) in the portion that includes the curved extending region may be less than that of the other portions.

[0088] 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 sound 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 may additionally include other components.

[0089] In one embodiment, the display (201) may be visually exposed, for example, through a substantial 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 a side surface (210C). In one embodiment, the corners of the display (201) may be formed to be substantially the same as the adjacent outer shape of the front plate (202). In one embodiment (not shown), in order to expand the area over which 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 substantially the same.

[0090] In one embodiment (not shown), a recess or opening may be formed in a part of a 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 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 a back surface of the screen display area of ​​the display (201). In one embodiment (not shown), the display (201) may be coupled to or disposed 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 positioned on the side (210C).

[0091] According to one embodiment, the audio module (not shown) may include a microphone hole (203) and sound holes (207, 214). The microphone hole (203) may have a microphone disposed inside to acquire external sound, and in one embodiment, multiple microphones may be disposed to detect the direction of the sound. According to one embodiment, the sound holes (207, 214) may include an external sound hole (207) and a receiver hole (214) for calls. In one embodiment, the sound 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 the sound holes (207, 214) (e.g., a piezo speaker).

[0092] 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 not only the first surface (210A) (e.g., the display (201)) of the housing (210) but also the second surface (210B) or the side surface (210C). The electronic device (101) may further include, for example, at least one of a gesture sensor, a gyro sensor, a pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0093] In one embodiment, the camera modules (205, 212, 213) may include a first camera module (205) facing the first side (210A) of the electronic device (101), and a second camera module (212) and / or a flash (213) facing the second side (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. In one embodiment, some of the camera modules (205) and / or some of the sensor modules (e.g., the sensor module (204)) among the camera modules (205, 212) may be arranged to be exposed to the outside through at least a portion of the display (201). In one embodiment, the first camera module (205) may include a punch hole camera arranged inside a hole or recess formed on the back surface of the display (201). For example, the first camera module (205) may receive at least a portion of light incident on the first side (210A) (or front side) of the electronic device (101) through the display (201) within the electronic device (101). According to one embodiment, the first camera module (205) and / or the sensor module (204) may be arranged so as to be in contact with the external environment through a transparent area from the internal space of the electronic device (101) to the front plate (202) of the display (201). Additionally, some of the sensor modules (204) may be arranged so as to perform their functions without being visually exposed through the front plate (202) within the internal space of the electronic device.

[0094] In one embodiment, the second camera module (212) may be disposed inside the housing (210) such that the lens is exposed to the second side (210B) (or back) 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 disposed 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) disposed on the second side (210B) of the housing (210). An electronic device (101) or processor (e.g., processor (180) of FIG. 1) can detect depth information of a subject based on the point in time when infrared rays are received from the sensor module.

[0095] The camera modules (205, 212, 213) are not limited to the above structure, and may 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).

[0096] 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 properties (e.g., angles of view) or functions. For example, the electronic device (101) may include a plurality of camera modules (205, 212) each having a different angle of view, and the electronic device (101) may control the camera modules (205, 212) to change the angle of view of the camera modules (205, 212) operated 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 infrared (IR) camera (e.g., a time of flight (TOF) camera, a structured light camera). In one embodiment, the IR camera may be operated as at least a part of a sensor module. For example, the TOF camera may be operated as at least a part of a sensor module (not shown) for detecting a distance to a subject.

[0097] In one embodiment, the key input device (217) may be disposed on a side surface (210C) of the housing (210). In one embodiment, the electronic device (101) may not include some or all of the above-mentioned 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 surface (210B) of the housing (210).

[0098] In one embodiment, the light emitting element (206) may be disposed, for example, on the first surface (210A) of the housing (210). The light emitting element (206) may provide, for example, status information of the electronic device (101) in the form of light. In one embodiment, the light emitting element (206) may provide a light source that is linked to a process of, for example, the camera module (205). The light emitting element (206) may include, for example, an LED, an IR LED, and a xenon lamp.

[0099] According to one embodiment, the connector holes (208, 209) may include a first connector hole (208) that can accommodate a connector (e.g., a USB connector) for transmitting and receiving power and / or data with an external electronic device, and / or a second connector hole (e.g., an earphone jack) (209) that can accommodate a connector for transmitting and receiving audio signals with an external electronic device.

[0100] [Example 1]

[0101] FIG. 5A is a cross-sectional view illustrating a portion of an optical system and a portion of a lens barrel according to an embodiment of the present disclosure. FIG. 5B is a graph illustrating spherical aberration of the optical system of FIG. 5A according to an embodiment of the present disclosure. FIG. 5C is a graph illustrating astigmatism of the optical system of FIG. 5A according to an embodiment of the present disclosure. FIG. 5D is a graph illustrating distortion of the optical system of FIG. 5A according to an embodiment of the present disclosure.

[0102] Referring to FIGS. 5A to 5D , in one embodiment, an electronic device (e.g., the electronic device (101) of FIGS. 1 , 3 and 4 ) may include an optical system (300). The optical system (e.g., the optical system (300) of FIG. 5A , the optical system (400) of FIG. 6A , the optical system (500) of FIG. 7A , the optical system (600) of FIG. 8A , the optical system (700) of FIG. 9A , the optical system (800) of FIG. 10A , the optical system (900) of FIG. 11A ) according to one embodiment of the present disclosure may constitute at least a portion of a camera module (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 ) of the electronic device (101). 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).

[0103] Referring to FIG. 5A, an optical system (300) according to one embodiment of the present disclosure may be arranged to receive light from the outside of the electronic device (101) through a first area (or camera exposure area) of a display (e.g., display module (160) of FIG. 1 and display (201) of FIGS. 3 and 4) of the electronic device (101). The first area may be formed to be substantially transparent. For example, the first area may include a through hole or recess formed in at least a portion of a plurality of layers (e.g., a cover window, a display panel, and / or a support panel) constituting the display (201). In one embodiment, the electronic device (101) may include a front camera (e.g., camera module (290) of FIG. 2 and / or first camera module (205) of FIG. 3). According to one embodiment, the optical system (300) may be included in a 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) including the optical system (300) may be a camera (e.g., an under display camera (UDC), a hole in display (HID)) positioned below (or at the rear) 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 a rear camera of the electronic device (101) (e.g., the second camera module (212) of FIG. 4). The above description of the optical system (300) of FIG. 5a can be applied equally or similarly to the optical system (400) of FIG. 6a, the optical system (500) of FIG. 7a, the optical system (600) of FIG. 8a, the optical system (700) of FIG. 9a, the optical system (800) of FIG. 10a, and the optical system (900) of FIG. 11a.

[0104] According to one embodiment of the present disclosure, an optical system (e.g., an optical system (300) of FIG. 5A, an optical system (400) of FIG. 6A, an optical system (500) of FIG. 7A, an optical system (600) of FIG. 8A, an optical system (700) of FIG. 9A, an optical system (800) of FIG. 10A, an optical system (900) of FIG. 11A) can be implemented as a high-pixel, bright (e.g., an F-number of about 2.4 or less) wide-angle (e.g., an angle of view of about 76 degrees or more) structure in which an aperture (sto) is arranged between the vertex of the subject-side surface (S3) of the first lens (L1) and the subject (obj) (e.g., an aperture stop on barrel (AOB)), and performance such as a peripheral light ratio can be secured. For example, an optical system (e.g., an optical system (300) of FIG. 5a, an optical system (400) of FIG. 6a, an optical system (500) of FIG. 7a, an optical system (600) of FIG. 8a, an optical system (700) of FIG. 9a, an optical system (800) of FIG. 10a, an optical system (900) of FIG. 11a) may be configured as an optical system (e.g., a direct optical system) in which a path along which incident light reaches the image sensor (I) is formed as a straight line, but this is not limited thereto, and when including a reflective member (e.g., a prism, a mirror), a curved optical system in which incident light is reflected / refracted at least once to reach the image sensor (I) may be configured.

[0105] In one embodiment, the optical system (300) may be arranged to receive light through a first area (or camera exposure area) of the display (201). Here, the camera exposure area may be a through-hole (e.g., a punch-hole or a perforated hole) formed in a portion of the display (201). In one embodiment, the through-hole of the display (201) may be arranged in an active area (or screen area) of the display (201) where an image is displayed or around the active area and in an inactive area of ​​the display (201) where no image is displayed.

[0106] According to one embodiment, the optical system (300) may include a lens barrel (10), a lens group including a plurality of lenses (L1, L2, L3, L4, L5) (e.g., at least five), an aperture (sto) and / or an image sensor (I). According to one embodiment, the lenses (L1, L2, L3, L4, L5), the aperture (sto) and / or the image sensor (I) of the lens group may be substantially aligned on the optical axis (O).

[0107] In one embodiment, the phrase "arranged on an optical axis (O) extending from the object side to the image side" or "aligned along the optical axis (O)" may refer to the lenses (L1, L2, L3, L4, L5) being sequentially arranged from the object side toward the image sensor (I). In the embodiment 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 from the object side toward the image sensor (I). In one embodiment, the first lens (L1) may be referred to as a “first lens on the subject side” or a “lens positioned furthest from the image sensor (I),” and the fifth lens (L5) may be referred to as a “first lens on the image sensor (I) side” or a “lens positioned closest to the image sensor (I).” In one embodiment, the image sensor (I) (e.g., the imaging plane (img)) may be aligned to face the lenses (L1, L2, L3, L4, L5) on the optical axis (O). The imaging plane (img) may receive or detect light aligned or focused by, for example, the lenses (L1, L2, L3, L4, L5).

[0108] According to one embodiment, the electronic device (101) (or the optical system (300)) may further include a lens barrel (10) disposed within the electronic device (101). According to one embodiment, the lens barrel (10) may be formed to receive and support lenses (L1, L2, L3, L4, L5) therein. According to one embodiment, the lens barrel (10) may include an opening (10a). For example, the opening (10a) may be disposed to be aligned with or overlap with a through hole of the display (201) with respect to one axis (e.g., the optical axis (O)). For example, a diameter of the opening (10a) (e.g., d1 in FIG. 5A) may be smaller than a diameter or effective diameter of the first lens (L1) and smaller than or equal to a diameter of the through hole of the display (201).

[0109] According to one embodiment, the lens barrel (10) may include frames (11, 12, 13, 14, 15) for holding or supporting the lenses (L1, L2, L3, L4, L5) in their positions (or design positions). For example, the frames (11, 12, 13, 14, 15) may protrude toward the lenses on the inside of the lens barrel (10), and may be connected to the lens barrel (10) or formed integrally with the lens barrel (10). For example, the first frame (11) may support the first lens (L1) and be positioned to face the subject-side surface (S3) of the first lens (L1). For example, the second frame (12) may be arranged between the edge of the first lens (L1) and the edge of the second lens (L2) and configured to support the first lens (L1) and / or the second lens (L2). For example, the third frame (13) may be arranged between the edge of the second lens (L2) and the edge of the third lens (L3) and configured to support the second lens (L2) and / or the third lens (L3). For example, the fourth frame (14) may be arranged between the edge of the third lens (L3) and the edge of the fourth lens (L4) and configured to support the third lens (L3) and / or the fourth lens (L4). For example, the fifth frame (15) may be arranged between the edge of the fourth lens (L4) and the edge of the fifth lens (L5) and configured to support the fourth lens (L4) and / or the fifth lens (L5). For example, the sixth frame (16) may be arranged between the edge of the fifth frame (15) and the fifth lens (L5) and configured to support the fourth lens (L4), the fifth frame (15) and / or the fifth lens (L5). In one embodiment, some or all of the frames (11, 12, 13, 14, 15, 16) may be omitted.

[0110] According to one embodiment, the lenses (L1, L2, L3, L4, L5) of the lens group of the optical system (300) may be arranged on an optical axis (O) extending from the object side to the image side. According to one embodiment, the optical system (300) may be arranged on an optical axis (O) passing through the centers of the plurality of lenses (L1, L2, L3, L4, L5) from the object side to the image side. In the following description of the configuration of each lens (L1, L2, L3, L4, L5), for example, the object side may indicate the direction in which the object (obj) is located, and the image side may indicate the direction in which an image plane (img) on ​​which an image is formed is located.

[0111] 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 (obj), and an 'image-side surface', which is a surface facing the image (or the image sensor (I)). For example, the first lens (L1) may include a subject-side surface (S3) and an image-side surface (S4). For example, the second lens (L2) may include a subject-side surface (S5) and an image-side surface (S6). For example, the third lens (L3) may include a subject-side surface (S7) and an image-side surface (S8). For example, the fourth lens (L4) may include a subject-side surface (S9) and an image-side surface (S10). For example, the fifth lens (L5) may include a subject-side surface (S11) and an image-side surface (S12). According to one embodiment, the lenses (L1, L2, L3, L4, L5) may be formed of a synthetic resin (e.g., plastic) material. However, the number and material of the lenses in the lens group of the present disclosure are not limited, and for example, additional lenses may be included or at least one lens may be made of glass.

[0112] In the detailed description below, the shape of the subject-side surface, which is the surface facing the subject (obj) side of the lenses (L1, L2, L3, L4, L5), and / or the image-side surface, which is the surface facing the image sensor (I) or the imaging plane (img), may be described using the terms 'concave' or 'convex'. The reference to the shape of the surface of these lenses may be a description of the shape of the point intersecting the optical axis (O) or the shape of the 'paraxial region' around the point intersecting the optical axis (O). 'The subject-side surface has a concave shape' can describe a shape in which the center of the curvature radius of the subject-side surface is located on the subject side. 'The subject-side surface has a convex shape' can describe a shape in which the center of the curvature radius of the subject-side surface is located on the image sensor (I) side. Therefore, even if one surface of a lens (the paraxial region of that surface) is described as having a convex shape, the peripheral region around 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 peripheral region around the paraxial region of the lens may be convex. In this case, the concaveness or convexity of the lens surface shape can be referred to by specifying a portion of the lens surface.

[0113] According to one embodiment, at least some of the lenses (L1, L2, L3, L4, L5) may have at least one of an object-side surface or an image-side surface formed as an aspheric surface. For example, by forming the surfaces of the lenses (L1, L2, L3, L4, L5) as an aspheric surface, spherical aberration that may occur in the lenses may be suppressed, occurrence of coma in the periphery of the image sensor (I) may be prevented, control of astigmatism may be facilitated, and occurrence of field curvature from the center to the periphery of the image forming surface (img) of the image sensor (I) may be reduced.

[0114] In one embodiment, the first lens (L1) may have positive refractive power as the lens closest to the subject side (or the first lens from the subject side). According to one embodiment, the subject-side surface (S3) of the first lens (L1) may have a convex shape toward the subject side. For example, the shape of the subject-side surface (S3) convex toward the subject side may suppress an increase in spherical aberration due to the large diameters of the lenses (L1, L2, L3, L4, L5). For example, the subject-side surface (S3) and / or the image-side surface (S4) of the first lens (L1) may be formed as an aspherical surface.

[0115] In one embodiment, the second lens (L2) may be the second lens from the subject side and may have negative refractive power. According to one embodiment, the image-side surface (S6) of the second lens (L2) may be formed to be concave toward the image side. The shape of the image-side surface (S6) that is concave toward the image side may contribute to reducing or slimming the total length of the optical system (300) and improving aberrations. For example, the subject-side surface (S5) and / or the image-side surface (S6) of the second lens (L2) may be formed to be aspherical.

[0116] In one embodiment, the third lens (L3) may be the third lens from the subject side and may have a positive refractive power. According to one embodiment, the image-side surface (S8) of the third lens (L3) may have a meniscus shape that is convex toward the image side. The shape of the third lens (L3) may be advantageous for peripheral aberration correction. For example, the subject-side surface (S7) and / or the image-side surface (S8) of the third lens (L3) may be formed as an aspherical surface.

[0117] In one embodiment, the fourth lens (L4) may be the fourth lens from the subject side and may have negative refractive power. According to one embodiment, the image-side surface (S10) of the fourth lens (L4) may have an inflection shape. In other words, the subject-side surface (S9) and / or the image-side surface (S10) of the fourth lens (L4) may be formed as an aspherical surface including at least one inflection point. In the present disclosure, an inflection point may mean a point at which the sign of the curvature (or radius of curvature) changes in an edge region of the lens around the paraxial region of the lens. For example, the inflection point may be a point where the negative / positive of the radius of curvature of the paraxial region and the edge region may be reversed. For example, the inflection point may be located at the boundary between a region where the center of the radius of curvature is located on the subject (obj) side and a region where the center of the radius of curvature is located on the image sensor (I) side, on one lens surface. According to one embodiment, the upper surface (S10) of the fourth lens (L4) may include at least one inflection point. For example, by including at least one inflection point, the field curvature from the axial region around the point where the axial region intersects the optical axis (O) of the upper surface (S10) to the peripheral region (or edge region) around the axial region may be reduced or minimized.

[0118] In one embodiment, the fifth lens (L5) is the fifth lens from the subject side and may have positive or negative refractive power. According to one embodiment, the fifth lens (L5) may have negative refractive power. In one embodiment, at least one of the image-side surfaces (S12) of the fifth lens (L5) may have an inflection shape. In other words, the subject-side surface (S11) and / or the image-side surface (S12) of the fifth lens (L5) may be formed as an aspherical surface including at least one inflection point. According to one embodiment, the fifth lens (L5) may have a meniscus shape that is convex toward the subject in the paraxial region, and a peripheral region around the paraxial region may have an inflection shape that is inclined toward the subject, and such a shape of the fifth lens (L5) may be advantageous for reducing the effective diameter of the fifth lens (L5), which is the lens closest to the image sensor (I), and for slimming down the optical system (300).

[0119] In one embodiment, at least one of the lenses (L1, L2, L3, L4, L5) and / or the image sensor (I) may be configured to reciprocate along the optical axis (O). According to one embodiment, an electronic device (e.g., the electronic device (101) of FIG. 1 and / or the electronic device (101) of FIGS. 3 and 4) or a processor (e.g., the processor (120) of FIG. 1) may be configured to focus or adjust a focal length by reciprocating the lenses (L1, L2, L3, L4, L5) and / or the image sensor (I) along the optical axis (O).

[0120] In one embodiment, the aperture (sto) may be arranged between the subject (obj) and the first lens (L1). In one embodiment, the aperture (sto) may be arranged to face at least a portion of the subject-side surface (S3) of the first lens (L1). For example, when the aperture (sto) is arranged toward (or in front of) the subject-side surface (S3) of the first lens (L1), it may be advantageous for reducing the angle of view of the optical system (300) and minimizing the aperture, and may provide good wide-angle performance. For example, when the aperture (sto) is positioned on the subject (obj) side with respect to the subject-side surface (S3) of the first lens (L1), the size of the through hole of the display (e.g., the display module (160) of FIG. 1 and the display (201) of FIGS. 3 and 4) through which the first lens (L1) is exposed can be reduced compared to the case where the aperture (sto) is positioned on the image sensor side (I) with respect to the subject-side surface (S3) of the first lens (L1). The through hole may refer to a hole formed on the display (201) and through which light incident from the outside of the electronic device (101) to the optical system (300) (or the front camera including the optical system (300) (e.g., the camera module (290) of FIG. 2 and / or the first camera module (205) of FIG. 3)) (e.g., UDC (under display camera), HID (hole in display)) passes.

[0121] According to one embodiment, the aperture (sto) may be disposed between the vertex of the subject-side surface (S3) of the first lens (L1) and the subject (obj). This may refer to the aperture (sto) being disposed in the gap or space between the vertex of the subject-side surface (S3) and the subject (obj). In one embodiment, the phrase 'disposed in the gap or space between' may include a structure disposed on the subject-side surface of the n-th lens (wherein 'n' is a natural number). Here, the vertex of the subject-side surface (S3) of the first lens (L1) may refer to the central portion of the subject-side surface (S3) of the first lens (L1), that is, the portion closest to the subject side or the highest portion of the subject-side surface (S3). For example, the vertex of the subject-side surface (S3) of the first lens (L1) may be the point where the optical axis (O) intersects the subject-side surface (S3). For example, the aperture (sto) may be arranged to be aligned with the vertex of the subject-side surface (S3) of the first lens (L1). For example, the aperture (sto) may be arranged on an imaginary plane that is in contact with the vertex of the subject-side surface (S3). In the optical system (300) according to one embodiment of the present disclosure, the aperture (sto) may be arranged between the vertex of the first lens (L1) and the subject (obj), while securing peripheral light ratio performance and a relatively wide angle of view (e.g., about 76 degrees or more).

[0122] According to one embodiment, the image sensor (I) may include an imaging plane (img) that receives at least a portion of light focused through an aperture (sto) and / or lenses (L1, L2, L3, L4, L5) and is a surface on which an image is formed. According to one embodiment, the image sensor (I) is a sensor that is mounted on a circuit board or the like and arranged in a state aligned with an optical axis, and may react to light. The image sensor (I) may include a sensor such as a complementary metal-oxide semiconductor (CMOS) image sensor or a charge coupled device (CCD). The image sensor (I) is not limited thereto, and may include, for example, various elements that convert an image of a subject into an electrical image signal. The image sensor (I) may acquire an image of a subject by detecting brightness information, gradation information, color information, etc. of the subject from light passing through a plurality of lenses.

[0123] 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 disposed between the lens (e.g., the fifth lens (L5)) closest to the image sensor (I) among the lens group and the image sensor (I). According to one embodiment, the filter member (F) may include a subject-side surface (S13) facing the subject (obj) and an upper-side surface (S14) facing the image sensor (I). For example, the filter member (F) may be configured to block light (e.g., infrared) in a wavelength band that is not visible to the naked eye of a user but is detected by a film or the image sensor (I). According to one embodiment, the filter member (F) may be an infrared cut filter. In one embodiment, in an optical system or electronic device (101) 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) can be aligned with a plurality of lenses (L1, L2, L3, L4, L5), an aperture (sto) and / or an image sensor (I) of a lens group along the optical axis (O). In one embodiment, the filter element (F) can be implemented by a coating material disposed on a lens surface of any one of the lenses (L1, L2, L3, L4, L5).

[0124] Hereinafter, according to one embodiment, [Formulas 1 to 11] are described for implementing the optical system (300) of FIG. 5a, the optical system (400) of FIG. 6a, the optical system (500) of FIG. 7a, the optical system (600) of FIG. 8a, the optical system (700) of FIG. 9a, the optical system (800) of FIG. 10a, and the optical system (900) of FIG. 11a as a high-pixel, bright, wide-angle optical system that is suitable for application to a HID (hole in display). In addition, in the present disclosure, at least two lenses among the first lens (L1), the second lens (L2), the third lens (L3), the fourth lens (L4), and the fifth lens (L5) are formed of a high-refractive material having a refractive index of 1.58 or higher, so that the optical performance of the optical system (300, 400, 500, 600, 700, 800, 900) can be improved or optimized.

[0125] In the present disclosure, the radius (e.g., radius of curvature), effective focal length (f), total track length (TTL), surface distance (SD), air gap, thickness or image height (IH) of the image sensor (I) of the lenses (L1, L2, L3, L4, L5) may all have units of mm unless otherwise specified. In addition, the radius of the lenses (L1, L2, L3, L4, L5) and the IH of the image sensor (I) may be measured in a direction substantially perpendicular to the point intersecting the optical axis (O), and the effective focal length, TTL, SD, air gap or thickness may be measured in a direction parallel to the optical axis (O) from the point intersecting the optical axis (O).

[0126] According to one embodiment, the optical system (300) and the optical systems (400, 500, 600, 700, 800, 900) described below can satisfy [Equation 1], [Equation 2], and [Equation 3] described below, and can satisfy at least one of [Equation 4] to [Equation 8] described below.

[0127] According to one embodiment, the optical system (300, 400, 500, 600, 700, 800, 900) can satisfy the following [Equation 1].

[0128] [Formula 1]

[0129] ASTL - TTL 0

[0130] Here, ASTL of [Formula 1] is the distance from the aperture (sto) to the imaging plane (img) of the image sensor (I), and TTL (total track length) may be the distance from the subject-side surface (S3) of the first lens (L1) to the imaging plane (img). According to one embodiment, when [Formula 1] is satisfied, the size of the through hole of the display (e.g., the display module (160) of FIG. 1 and the display (201) of FIGS. 3 and 4) on which the optical system is arranged can be minimized, and accordingly, the aesthetic appearance of the electronic device (e.g., the electronic device (101) of FIGS. 1, 3, and 4) can be improved.

[0131] According to one embodiment, the optical system (300, 400, 500, 600, 700, 800, 900) can satisfy the following [Formula 2].

[0132] [Formula 2]

[0133] FOV 76 degrees

[0134] Here, the FOV (field of view) of [Formula 2] may be the entire angle of view of the optical system (300, 400, 500, 600, 700, 800, 900). According to one embodiment, the optical system can be implemented as a wide angle by satisfying [Formula 2].

[0135] According to one embodiment, the optical system (300, 400, 500, 600, 700, 800, 900) can satisfy the following [Formula 3].

[0136] [Formula 3]

[0137] f / EPD 2.4

[0138] Here, f(focal length) of [Formula 3] is the composite focal length of the optical system (300, 400, 500, 600, 700, 800, 900), and the entrance pupil diameter (EPD) may be the entrance pupil diameter of the optical system (300, 400, 500, 600, 700, 800, 900). [Formula 3] can define the brightness of the optical system with the F number (Fno). For example, when the f / EPD of [Formula 3] exceeds about 2.4, the limiting resolution is lowered, and the performance of the optical system may deteriorate overall compared to when the f / EPD is about 2.4 or less, and the brightness of the optical system may become relatively dark (e.g., the F number may increase).

[0139] According to one embodiment, the optical system (300, 400, 500, 600, 700, 800, 900) can satisfy the following [Formula 4].

[0140] [Formula 4]

[0141] TTL / (IH *2) < 0.75

[0142] Here, the TTL (total track length) of [Formula 4] is the distance from the subject side surface (S3) of the first lens (L1) to the image plane (img), and the IH (image height) may be the effective image height of the image sensor (I). For example, IH may be half of the diagonal length of the image sensor (I). The lower the value of TTL / (IH*2) of [Formula 4], the slimmer the optical system can be. If the value of TTL / (IH*2) of [Formula 4] is 0.75 or more, the size of the optical system may become large, making it difficult to meet the demands for miniaturization and slimming of the optical system.

[0143] According to one embodiment, the optical system (300, 400, 500, 600, 700, 800, 900) can satisfy the following [Formula 5].

[0144] [Formula 5]

[0145] 17 < V4 < 40

[0146] V4 may be the Abbe number of the fourth lens at a wavelength of 587.6 nm. [Formula 4] can define the Abbe number condition for implementing an optical system (300, 400, 500, 600, 700, 800, 900) with improved chromatic aberration control performance. When [Formula 4] is satisfied, the chromatic aberration of the optical system can be controlled most effectively. For example, when V4 of [Formula 4] is 40 or more, there is a problem that chromatic aberration, especially longitudinal chromatic aberration, increases, so it may be difficult to secure good image quality of the optical system. For example, it may be difficult to manufacture a lens designed with V4 of [Formula 4] of 17 or less.

[0147] According to one embodiment, the optical system (300, 400, 500, 600, 700, 800, 900) can satisfy the following [Formula 6].

[0148] [Formula 6]

[0149] N2 1.66

[0150] N2 may be the second lens refractive index at a wavelength of 587.6 nm. [Formula 6] may define refractive index conditions for implementing a miniaturized optical system (300, 400, 500, 600, 700, 800, 900) with improved chromatic aberration. According to one embodiment, when N2 of [Formula 6] is less than about 1.66, the angle of view of the optical system may be reduced, which may be advantageous for reducing the angle of view, but it may be difficult to control the aberrations of the lenses (L1, L2, L3, L4, L5) and optimize the performance of the lenses (e.g., modulation transfer function, MTF), and the total length of the optical system may be increased, which may run counter to the demand for miniaturization of the optical system.

[0151] According to one embodiment, the optical system (300, 400, 500, 600, 700, 800, 900) can satisfy the following [Formula 7].

[0152] [Formula 7]

[0153] SD / TTL 0.9

[0154] Here, SD is the distance from the subject-side surface (S3) of the first lens (L1) to the image-side surface (S12) of the fifth lens (L5), and TTL may be the distance from the subject-side surface (S3) of the first lens (L1) to the imaging plane (img) of the image sensor (I). If the SD / TTL value of [Formula 7] exceeds 0.9, the distance between the lens (e.g., the first lens (L1)) and the imaging plane (img) may become short, thereby lowering the productivity of the optical system and making mass production impossible.

[0155] According to one embodiment, the optical system (300, 400, 500, 600, 700, 800, 900) can satisfy the following [Formula 8].

[0156] [Formula 8]

[0157] CT2 0.17 mm

[0158] Here, CT2 (center thickness 2) of [Equation 8] may be the center thickness of the second lens. For example, CT2 may be measured with respect to the optical axis (O). According to one embodiment, [Equation 8] may define a slimming condition of the optical system. For example, when CT2 of [Equation 8] is less than about 0.17 mm, it may be difficult to secure the slimming characteristic of the optical system.

[0159] The optical system (400) of FIG. 6A, the optical system (500) of FIG. 7A, the optical system (600) of FIG. 8A, the optical system (700) of FIG. 9A, the optical system (800) of FIG. 10A, and the optical system (900) of FIG. 11A of the present disclosure can satisfy the above-described [Equation 1], [Equation 2], and [Equation 3], and can satisfy at least one of the above-described [Equation 4] to [Equation 8].

[0160] [Table 1] below shows the numerical values ​​of ASTL - TTL of [Formula 1], FOV of [Formula 2], f / EPD of [Formula 3], TTL / (IH *2) of [Formula 4], V4 of [Formula 5], N2 of [Formula 6], and SD / TTL of [Formula 7] of the optical system (300, 400, 500, 600, 700, 800, 900) according to [Example 1] and [Examples 2] to [Examples 7] described below with reference to FIGS. 6a to 11d. 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 7].

[0161] Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Formula 10.0100.0050.005000.0050.005 Formula 281858585818181 Formula 32.282.252.252.252.282.282.28 Formula 40.650.630.630.630.680.710.70 Formula 525.9437.3937.3937.3925.9437.3937.39 Formula 61.671.671.671.671.661.661.66 Formula 70.750.760.760.760.750.760.76 Formula 80.180.20.20.20.20.20.2

[0162] In one embodiment, the optical system (300) can be manufactured to have the shapes of the lenses (L1, L2, L3, L4, L5) (e.g., lens surfaces) described above, and satisfy the above-described [Equation 1], [Equation 2], and [Equation 3], and at least one of the above-described [Equation 4] to [Equation 8], and have the specifications exemplified in the following [Table 2]. In [Table 2], lens surface 1 can exemplify a gap between the first lens (L1) and the subject (obj), and a measured value of the thickness thereof can be the distance of the gap or the air gap. Lens surface 2 in [Table 2] can be an aperture (sto). The lens surface 'n' (wherein n is 3 to 14) of [Table 2] may correspond to the lens surface Sn (wherein n is 3 to 14) which is the subject-side surface or the image-side surface of the lenses (L1, L2, L3, L4, L5) of the present disclosure. The 'img' of [Table 2] may be the imaging surface (img) of the image sensor (I). The optical system (300) implemented with the specifications of [Table 2] below may be a wide-angle optical system having a focal length (f) of about 3.18 mm, an F-number (Fno) of about 2.28, and an angle of view (FOV) of about 81.

[0163] Lens surface (Surface) Radius of curvature (Radius) Thickness Refractive index (Nd) Abbe number (Vd) Object (obj) Infinity 400.0000 1 Infinity 0.1000 2 (Aperture (sto)) Infinity 0.0100 31.15890.43671.5439755.9146.73460.0821 5-16.86030.18001.6707419.2366.47250.2184 756.94590.24341.5348055.718-60.45550.4992 939.74310.49591.6144425.94103.88600.1160 110.91390.47341.5439755.91120.86930.2665 13infinity0.11001.5168064.2014infinity0.5413 imginfinity0.0021

[0164] [Table 3] and [Table 4] below describe the aspherical coefficients of the lenses (L1, L2, L3, L4, L5), and the aspherical coefficients can be calculated using the following [Mathematical Formula 1].

[0165] [Mathematical Formula 1]

[0166]

[0167] Here, 'x' is the distance from the vertices of the lenses (L1, L2, L3, L4, L5) in the direction of the optical axis (O), 'y' is the distance in the direction perpendicular to the optical axis (O), 'R' is the radius of curvature at the vertices of the lenses (L1, L2, L3, L4, L5), 'K' is the Conic constant, may mean an aspherical coefficient. In the present disclosure, the aspherical coefficients 'A4', 'A6', 'A8', 'A 10 ', 'A 12 ', 'A 14 ', 'A 16 ', 'A 18 ', 'A 20 ', 'A 22 ', 'A 24 ', 'A 26 ', 'A 28 ', 'A 30 ' can be sequentially represented as 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'J', 'K', 'L', 'M', 'N', 'O'. For example, E+01 is 10 1 , E-02 is 10 -2 can represent. The radius of curvature (R) can represent, for example, a value indicating the degree of curvature at each point of a surface or curve.

[0168] 라이면(Surface)S3S4S5S6S7K'(Conic)-5.0039E+000.0000E+000.0000E+005.6313E+000.0000E+00A(4th) / C45.0459E-02-4.3753E-021.3163E- 024.0199E-02-8.6620E-02B(6th) / C5-8.3530E-03-1.1847E-035.7434 E-038.8333E-031.0339E-02C(8th) / C6-8.8797E-04-4.3598E-04-2.58 65E-045.2236E-043.9951E-03D(10th) / C7-2.3446E-043.7218E-051.4979E-043.4671E-041.2669E-03E(12th) / C8-2.3215E-05-8.8011E-06-1.2144E-052.8900E-052.7603E-04F(14th) / C99.3220E-06-8.8635E-06-8.9450E-06-1.9492E-05-4.9980E-05G(16th) / C10-6.8391E-06-3.01 10E-06-8.1174E-07-5.0846E-06-2.6204E-05H(18th) / C113.7486E-06 -3.8046E-071.8685E-07-6.7674E-06-2.6476E-05J(20th) / C12-1.804 0E-061.0719E-065.1377E-07-3.7614E-075.1166E-07K(22th) / C133.4 177E-06-7.7905E-074.7151E-07-1.3291E-06-5.2364E-06L(24th) / C1 4-2.5644E-067.5149E-07-7.9205E-073.1211E-074.2155E-06M(26th) / C151.8622E-061.4426E-061.9212E-07-1.3647E-06-4.1842E-07N(28 th) / C160.0000E+00-1.4188E-060.0000E+008.1464E-07-5.9762E-08O (30th) / C170.0000E+00-2.5355E-060.0000E+000.0000E+000.0000E+00

[0169] Lens surface S8 S9 S10 S11 S12 K' (Conic) 0.0000E+000.0000E+000.0000E+00-8.0356E+00-3.0098E+00A(4th) / C4-1.0639E-01-3.4893E-01-9.0420E-01-1.1884E+00-1.7998E+00B(6th) / C51.4349E-02-5.2293E-021.0400E-014.4621E-013.9698E-01C(8th) / C65.0813E-032.4185E-02-1. 4642E-02-1.4113E-01-1.2956E-01D(10th) / C71.3460E-031.4271E-02 2.4282E-024.0522E-025.8707E-02E(12th) / C82.8358E-043.1922E-03- 1.5482E-02-1.5443E-02-1.8252E-02F(14th) / C9-1.0433E-05-1.5391 E-034.1406E-034.9694E-037.5245E-03G(16th) / C10-9.7183E-06-2.01 10E-03-4.7848E-03-3.4520E-03-9.1172E-03H(18th) / C11-1.8844E-0 5-9.2621E-041.8037E-033.7908E-032.0546E-03J(20th) / C123.7197E- 06-4.2527E-05-9.2574E-05-2.0328E-03-7.1181E-04K(22th) / C13-6. 1368E-061.6246E-046.3325E-047.6499E-057.9220E-04L(24th) / C14-7 .9431E-071.0484E-04-3.0318E-045.1261E-041.2290E-04M(26th) / C1 5-4.4533E-06-5.4950E-05-1.2959E-04-1.4451E-042.7259E-04N(28th ) / C167.7858E-07-7.9687E-05-1.8711E-04-1.0228E-045.0254E-05O(3 0th) / C17-1.3348E-06-5.8447E-052.3690E-054.7074E-05-6.3582E-05

[0170] FIG. 5b is a graph showing spherical aberration of an optical system (300) according to one embodiment of the present disclosure, in which the horizontal axis represents a coefficient of longitudinal spherical aberration, the vertical axis represents a normalized distance from the optical axis (O), and shows a change in longitudinal spherical aberration according to the wavelength of light. The longitudinal spherical aberration is shown for light having wavelengths of, for example, 656.2700 (NM, nanometer), 587.5600 (NM), 546.0700 (NM), 486.1300 (NM), and 435.8300 (NM), respectively. FIG. 5c is a graph showing astigmatic field curves for light having a wavelength of 546.0700 nm of an optical system (300) according to one embodiment of the present disclosure, where 'S' exemplifies a sagittal plane and 'T' exemplifies a tangential plane (or meridional plane). FIG. 5d is a graph showing distortion for light having a wavelength of 546.0700 nm of an optical system (300) according to one embodiment of the present disclosure. The refractive index of the lens(es) mentioned in one embodiment may refer to the refractive index for light having a wavelength of approximately 587.6 nm (587.5600 nm).

[0171] [Example 2]

[0172] FIG. 6A is a schematic diagram illustrating an optical system according to an embodiment of the present disclosure. FIG. 6B is a graph illustrating spherical aberration of the optical system of FIG. 6A according to an embodiment of the present disclosure. FIG. 6C is a graph illustrating astigmatism of the optical system of FIG. 6A according to an embodiment of the present disclosure. FIG. 6D is a graph illustrating distortion of the optical system of FIG. 6A according to an embodiment of the present disclosure.

[0173] In the present disclosure, the configuration of the optical system (400) according to the embodiments of FIGS. 6A to 6D may be at least partially identical or similar to the configuration of the optical system (300) according to the embodiments of FIGS. 5A to 5D. The description of the first lens (L1), the second lens (L2), the third lens (L3), the fourth lens (L4), the fifth lens (L5), the aperture (sto), the filter member (F) and / or the image sensor (I) of the optical system (300) according to the embodiments of FIGS. 5A to 5D may be identically or similarly applied to the first lens (L1), the second lens (L2), the third lens (L3), the fourth lens (L4), the fifth lens (L5), the aperture (sto), the filter member (F) and / or the image sensor (I) of the optical system (500) according to the embodiments of FIGS. 6A to 6D.

[0174] The optical system (400) according to the embodiment of FIGS. 6a to 6d can satisfy [Equation 1], [Equation 2], and [Equation 3] described above in the embodiment of FIGS. 5a to 5d and can satisfy at least one of [Equation 4] to [Equation 8] described above.

[0175] In one embodiment, the optical system (400) can be manufactured with the specifications exemplified in [Table 5] below, and can have aspheric coefficients of [Table 6] and [Table 7]. In [Table 5], lens surface 1 can exemplify a gap between the first lens (L1) and the subject (obj), and the measured value of the thickness can be the distance of the gap or the air gap. Lens surface 2 of [Table 2] can be an aperture (sto). Lens surface 'n' (wherein, n is 3 to 14) of [Table 2] can correspond to lens surface Sn (wherein, n is 3 to 14) which is the subject-side surface or the image-side surface of the lenses (L1, L2, L3, L4, L5) of the present disclosure. 'img' of [Table 2] can be an imaging surface (img) of the image sensor (I).

[0176] The optical system (400) implemented with the specifications of [Table 5] below may be a wide-angle optical system having a focal length (f) of about 3.42 mm, an F number (Fno) of about 2.25, and an angle of view (FOV) of about 85 degrees.

[0177] Lens Surface Radius of Curvature Thickness Refractive Index (Nd) Abbe Number (Vd) Object (obj) Infinity 400.0000 1 Infinity 0.1000 2 (Aperture (sto)) Infinity 0.0050 31.387 30.42 261.54 39 75 5.9 148.75 15 0.0777 594.74 010.20 000 1.67 0 74 19.2 364 93 58 0.30 21 7-11.56 64 0.46 67 1.54 39 75 5.9 18-6.50 11 0.54 71 94.72 010.39 50 1.56 7 17 37.39 104.12 92 0.19 49 111.14810.54251.5439755.91120.87650.2914 13infinity0.11001.5168064.2014infinity0.5768 imginfinity0.0132

[0178] [Table 6] and [Table 7] below describe the aspherical coefficients of the lenses (L1, L2, L3, L4, L5) of the optical system (400). The aspherical coefficients can be calculated using the above-described [Mathematical Formula 1] with reference to [Table 3] and [Table 4].

[0179] 라이면(Surface)S3S4S5S6S7K'(Conic)-3.9190E+00-9.9630E+010.0000E+001.3327E+010.0000E+00A(4th) / C43.7728E-02-3.8508E-027.9580E -033.9481E-02-9.7057E-02B(6th) / C5-6.3135E-03-1.3098E-039.641 3E-031.1817E-021.0470E-02C(8th) / C6-1.1172E-03-6.5461E-04-1.06 85E-041.0065E-036.1435E-03D(10th) / C7-2.0675E-042.1942E-052.4112E-044.2013E-042.3409E-03E(12th) / C8-4.1837E-05-1.4476E-06-7.5254E-05-5.6754E-054.1166E-04F(14th) / C99.8496E-06-1.5115E-05-3.4376E-05-7.5649E-05-1.0135E-04G(16th) / C10-9.0698E-06-6.6 577E-07-8.6806E-06-3.2993E-05-1.3558E-04H(18th) / C112.0598E-0 6-1.5837E-063.4706E-07-1.5727E-05-6.1247E-05J(20th) / C12-2.69 52E-063.5506E-07-5.4990E-07-2.1425E-06-2.5020E-05K(22th) / C13 5.4178E-07-4.4516E-076.6243E-078.4793E-077.1045E-07L(24th) / C1 4-1.6297E-06-2.4485E-07-4.4885E-071.7767E-07-2.8495E-06M(26t h) / C151.7595E-060.0000E+006.0042E-072.6832E-072.2730E-06N(28t h) / C16-6.3615E-070.0000E+00-8.6730E-07-2.0227E-071.9505E-07O (30th) / C173.6247E-070.0000E+008.4289E-07-1.3971E-062.2741E-06

[0180] 라이면(Surface)S8S9S10S11S12K'(Conic)1.0030E+00-1.2055E+01-4.3381E+01-1.0899E+01-4.1034E+00A(4th) / C4-1.6593E-01-4.8595E-01- 6.1436E-01-1.4062E+00-2.1144E+00B(6th) / C52.1156E-02-1.1738E- 019.1739E-026.3297E-013.7217E-01C(8th) / C61.0148E-023.5825E-02 2.0356E-02-2.4953E-01-9.8733E-02D(10th) / C73.5459E-032.2272E- 02-6.6965E-047.4914E-026.7448E-02E(12th) / C89.2498E-043.7312E- 03-2.1905E-02-1.7982E-02-1.8645E-02F(14th) / C91.3051E-04-8.09 18E-041.4840E-025.2890E-03-1.0490E-03G(16th) / C10-5.3320E-05-1 .4136E-03-3.9141E-03-1.2015E-03-1.0731E-02H(18th) / C11-4.8144 E-05-8.3277E-041.7669E-035.6205E-043.8472E-03J(20th) / C12-2.3 865E-05-3.2191E-04-1.2255E-03-8.1740E-042.9037E-03K(22th) / C1 3-6.7279E-06-1.2759E-042.1876E-043.6647E-041.9323E-03L(24th) / C143.1700E-063.3669E-055.3546E-064.7959E-042.1215E-04M(26th) / C150.0000E+001.4822E-045.8966E-05-1.0412E-03-1.2417E-03N(28t h) / C160.0000E+001.4201E-04-9.9567E-057.2982E-04-8.2529E-04O( 30th) / C170.0000E+004.1463E-051.3155E-04-1.9378E-04-4.8890E-04

[0181] FIG. 6b is a graph showing spherical aberration of an optical system (400) according to one embodiment of the present disclosure, in which the horizontal axis represents a coefficient of longitudinal spherical aberration, the vertical axis represents a normalized distance from the optical axis (O), and shows a change in longitudinal spherical aberration according to the wavelength of light. The longitudinal spherical aberration is shown for light having wavelengths of, for example, 656.2700 (NM, nanometer), 587.5600 (NM), 546.0700 (NM), 486.1300 (NM), and 435.8300 (NM), respectively. FIG. 6c is a graph showing astigmatic field curves for light having a wavelength of 546.0700 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. 6d is a graph showing distortion for light having a wavelength of 546.0700 nm of an optical system (400) according to one embodiment of the present disclosure. The refractive index of the lens(es) mentioned in one embodiment may refer to the refractive index for light having a wavelength of approximately 587.6 nm (587.5600 nm).

[0182] [Example 3]

[0183] FIG. 7A is a schematic diagram illustrating an optical system according to an embodiment of the present disclosure. FIG. 7B is a graph illustrating spherical aberration of the optical system of FIG. 7A according to an embodiment of the present disclosure. FIG. 7C is a graph illustrating astigmatism of the optical system of FIG. 7A according to an embodiment of the present disclosure. FIG. 7D is a graph illustrating distortion of the optical system of FIG. 7A according to an embodiment of the present disclosure.

[0184] In the present disclosure, the configuration of the optical system (500) 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. 5A to 5D. The description of the first lens (L1), the second lens (L2), the third lens (L3), the fourth lens (L4), the fifth lens (L5), the aperture (sto), the filter member (F) and / or the image sensor (I) of the optical system (300) according to the embodiments of FIGS. 5A to 5D may be identically or similarly applied to the first lens (L1), the second lens (L2), the third lens (L3), the fourth lens (L4), the fifth lens (L5), the aperture (sto), the filter member (F) and / or the image sensor (I) of the optical system (500) according to the embodiments of FIGS. 7A to 7D.

[0185] The optical system (500) according to the embodiment of FIGS. 7a to 7d can satisfy [Equation 1], [Equation 2], and [Equation 3] described above in the embodiment of FIGS. 5a to 5d and can satisfy at least one of [Equation 4] to [Equation 8] described above.

[0186] In one embodiment, the optical system (500) can be manufactured with the specifications exemplified in [Table 8] below, and can have aspheric coefficients of [Table 9] and [Table 10]. In [Table 8], lens surface 1 can exemplify a gap between the first lens (L1) and the subject (obj), and the measured value of the thickness can be the distance of the gap or the air gap. Lens surface 2 of [Table 2] can be an aperture (sto). Lens surface 'n' (wherein, n is 3 to 14) of [Table 2] can correspond to lens surface Sn (wherein, n is 3 to 14) which is the subject-side surface or the image-side surface of the lenses (L1, L2, L3, L4, L5) of the present disclosure. 'img' of [Table 2] can be an imaging surface (img) of the image sensor (I).

[0187] The optical system (500) implemented with the specifications of [Table 8] below may be a wide-angle optical system having a focal length (f) of about 3.41 mm, an F number (Fno) of about 2.25, and an angle of view (FOV) of about 85 degrees.

[0188] Lens Surface Radius of Curvature Thickness Refractive Index (Nd) Abbe Number (Vd) Object (obj) Infinity 400.0000 1 Infinity 0.1000 2 (Aperture (sto)) Infinity 0.0050 31.38860.42241.5439755.9148.71010.0774 598.68750.20001.6707419.2364.98810.3014 7-11.53470.46871.5439755.918-6.47620.5448 94.79210.40241.5671737.39104.31480.1936 111.15870.53981.5439755.91120.87850.2894 13infinity0.11001.5168064.2014infinity0.5764 imginfinity0.0136

[0189] [Table 9] and [Table 10] below describe the aspherical coefficients of the lenses (L1, L2, L3, L4, L5) of the optical system (500). The aspherical coefficients can be calculated using the above-described [Mathematical Formula 1] with reference to [Table 3] and [Table 4].

[0190] Lens surface S3S4S5S6S7K'(Conic)-3.9146E+00-9.8266E+010.0000E+001.3283E+010.0000E+00A(4th) / C43.7609E-02-3.8419E-027.6378E-033.9485E-02-9.7003E-02B(6th) / C5-6.1831E-03-1.3330E-039.5156E-031.1810E-021.0366E-02C(8th) / C6-1.1091E-03-6.3614E-04-5.12 59E-051.0444E-036.0655E-03D(10th) / C7-1.9722E-042.6612E-052.2351E-044.0998E-042.3169E-03E(12th) / C8-4.2662E-05-1.1087E-05-7.8414E-05-6.0095E-054.0688E-04F(14th) / C91.0102E-05-1.2194E-05-3.0123E-05-7.1651E-05-9.0807E-05G(16th) / C10-1.0376E-05-9.19 93E-07-7.4600E-06-3.0479E-05-1.2415E-04H(18th) / C112.9679E-06 -6.8241E-078.4716E-07-1.5003E-05-5.7805E-05J(20th) / C12-4.2253 E-06-4.3040E-07-9.2972E-07-2.6180E-06-2.1945E-05K(22th) / C134 .2209E-073.8986E-073.6501E-071.8646E-08-8.6889E-07L(24th) / C14 -2.3926E-06-6.0216E-07-4.4849E-073.0352E-07-3.1873E-06M(26th ) / C151.7430E-060.0000E+005.3033E-074.2512E-071.2814E-06N(28th ) / C16-1.6723E-060.0000E+00-8.8419E-07-5.8218E-089.5388E-07O( 30th) / C17-9.0448E-080.0000E+008.3538E-07-1.1959E-061.7563E-06

[0191] 라이면(Surface)S8S9S10S11S12K'(Conic)1.5333E+00-1.1773E+01-4.6139E+01-1.1079E+01-4.1175E+00A(4th) / C4-1.6624E-01-4.8796E-01- 6.1503E-01-1.4027E+00-2.1125E+00B(6th) / C52.1150E-02-1.1711E- 019.6736E-026.3173E-013.6970E-01C(8th) / C61.0134E-023.6717E-02 1.9230E-02-2.4933E-01-9.8559E-02D(10th) / C73.5942E-032.2723E- 02-2.3262E-037.4700E-026.7190E-02E(12th) / C89.2998E-043.8114E- 03-2.1643E-02-1.8040E-02-1.8073E-02F(14th) / C91.4650E-04-9.09 43E-041.5852E-025.2036E-03-1.0207E-03G(16th) / C10-3.6004E-05-1 .4204E-03-4.1244E-03-1.2091E-03-1.1498E-02H(18th) / C11-3.3403 E-05-8.0060E-041.5709E-036.0575E-043.6534E-03J(20th) / C12-1.61 92E-05-3.6185E-04-1.3188E-03-7.7752E-042.8890E-03K(22th) / C13 -4.7853E-06-1.7030E-043.0576E-043.5866E-041.8414E-03L(24th) / C 146.2464E-062.6870E-05-2.5177E-054.6022E-045.6786E-04M(26th) / C150.0000E+001.3718E-048.8471E-05-1.0305E-03-9.7058E-04N(28t h) / C160.0000E+001.3580E-04-6.7739E-057.1692E-04-8.9793E-04O( 30th) / C170.0000E+004.6268E-051.1685E-04-1.8437E-04-5.6353E-04

[0192] FIG. 7b is a graph showing spherical aberration of an optical system (500) according to one embodiment of the present disclosure, in which the horizontal axis represents a coefficient of longitudinal spherical aberration, the vertical axis represents a normalized distance from the optical axis (O), and shows a change in longitudinal spherical aberration according to the wavelength of light. The longitudinal spherical aberration is shown for light having wavelengths of, for example, 656.2700 (NM, nanometer), 587.5600 (NM), 546.0700 (NM), 486.1300 (NM), and 435.8300 (NM), respectively. FIG. 7c is a graph showing astigmatic field curves for light having a wavelength of 546.0700 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. 7d is a graph showing distortion for light having a wavelength of 546.0700 nm of an optical system (500) according to one embodiment of the present disclosure. The refractive index of the lens(es) mentioned in one embodiment may refer to the refractive index for light having a wavelength of approximately 587.6 nm (587.5600 nm).

[0193] [Example 4]

[0194] FIG. 8A is a schematic diagram illustrating an optical system according to an embodiment of the present disclosure. FIG. 8B is a graph illustrating spherical aberration of the optical system of FIG. 8A according to an embodiment of the present disclosure. FIG. 8C is a graph illustrating astigmatism of the optical system of FIG. 8A according to an embodiment of the present disclosure. FIG. 8D is a graph illustrating distortion of the optical system of FIG. 8A according to an embodiment of the present disclosure.

[0195] In the present disclosure, the configuration of the optical system (600) 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. 5A to 5D. The description of the first lens (L1), the second lens (L2), the third lens (L3), the fourth lens (L4), the fifth lens (L5), the aperture (sto), the filter member (F) and / or the image sensor (I) of the optical system (300) according to the embodiments of FIGS. 5A to 5D may be identically or similarly applied to the first lens (L1), the second lens (L2), the third lens (L3), the fourth lens (L4), the fifth lens (L5), the aperture (sto), the filter member (F) and / or the image sensor (I) of the optical system (600) according to the embodiments of FIGS. 8A to 8D.

[0196] The optical system (600) according to the embodiment of FIGS. 8a to 8d can satisfy [Equation 1], [Equation 2], and [Equation 3] described above in the embodiment of FIGS. 5a to 5d and can satisfy at least one of [Equation 4] to [Equation 8] described above.

[0197] In one embodiment, the optical system (600) can be manufactured with the specifications exemplified in the following [Table 11], and can have aspheric coefficients of [Table 12] and [Table 13]. In [Table 11], lens surface 1 can exemplify a gap between the first lens (L1) and the subject (obj), and a measured value of the thickness thereof can be the distance of the gap or the air gap. Lens surface 2 of [Table 2] can be an aperture (sto). Lens surface 'n' (wherein, n is 3 to 14) of [Table 2] can correspond to lens surface Sn (wherein, n is 3 to 14) which is the subject-side surface or the image-side surface of the lenses (L1, L2, L3, L4, L5) of the present disclosure. 'img' of [Table 2] can be an imaging surface (img) of the image sensor (I).

[0198] The optical system (600) implemented with the specifications of [Table 11] below may be a wide-angle optical system having a focal length (f) of about 3.40 mm, an F number (Fno) of about 2.25, and an angle of view (FOV) of about 85 degrees.

[0199] Lens Surface Radius of Curvature Thickness Refractive Index (Nd) Abbe Number (Vd) Object (obj) Infinity 400.0000 1 Infinity 0.1000 2 (Aperture (sto)) Infinity 0.0000 31.38920.42101.5439755.9148.68640.0782 5149.56870.20001.6707419.2365.12340.3016 7-10.99450.46751.5439755.918-6.31510.5394 94.80210.40611.5671737.39104.59670.1986 111.18750.53811.5439755.91120.88960.2896 13infinity0.11001.5168064.2014infinity0.5730 imginfinity0.0170

[0200] [Table 12] and [Table 12] below describe the aspherical coefficients of the lenses (L1, L2, L3, L4, L5) of the optical system (600). The aspherical coefficients can be calculated using the above-described [Mathematical Formula 1] with reference to [Table 3] and [Table 4].

[0201] Lens surface S3 S4 S5 S6 S7 K' (Conic) -3.8756 E + 00 - 8.8054 E + 010.0000 E + 001.3045 E + 010.0000 E + 00A (4th) / C43.7978 E - 02 - 3.8127 E - 027.5167 E - 033.9447 E - 02 - 9.6793 E - 02B (6th) / C5 - 6.1117 E - 03 - 1.3101 E - 039.4300 E - 031.1806 E - 029.9728 E - 03C (8th) / C6 - 1.1393 E - 03 - 6.6359 E - 04 - 6.24 51E-051.0555E-035.7952E-03D(10th) / C7-2.1125E-049.2476E-062.0268E-044.1046E-042.2809E-03E(12th) / C8-4.7007E-05-1.2550E-05-7.3215E-05-5.6300E-054.0235E-04F(14th) / C95.9601E-06-1.2604E-05-3.4519E-05-7.0608E-05-6.1176E-05G(16th) / C10-9.8820E-06-2.72 62E-06-5.4262E-06-3.0075E-05-1.1683E-04H(18th) / C112.7467E-06 -3.7259E-073.2161E-07-1.3996E-05-4.7487E-05J(20th) / C12-4.458 5E-064.2953E-07-1.5637E-08-2.6052E-06-2.2994E-05K(22th) / C131 .8928E-061.4492E-077.1819E-07-4.9173E-071.3962E-06L(24th) / C14 -1.4312E-06-8.0002E-07-8.1283E-077.1550E-07-4.2679E-06M(26th ) / C151.4925E-060.0000E+004.4716E-078.3151E-082.1663E-06N(28th ) / C16-4.8494E-070.0000E+00-2.4216E-07-3.5252E-07-2.1028E-06O (30th) / C175.9482E-070.0000E+002.5015E-07-1.3130E-061.3132E-06

[0202] Lens surface S8 S9 S10 S11 S12 K' (Conic) - 5.4086 E - 01 - 1.1604 E + 01 - 4.4736 E + 01 - 1.1010 E + 01 - 4.0319 E + 00 A (4th) / C4 - 1.6423 E - 01 - 4.9590 E - 01 - 6.1024 E - 01 - 1.3997 E + 00 - 2.0450 E + 00 B (6th) / C52.0285 E - 02 - 1.1336 E - 019.4368 E - 026.1990 E - 013.4477 E - 01 C (8th) / C69.8951 E - 033.9011 E - 0 21.9177E-02-2.4181E-01-1.0135E-01D(10th) / C73.4457E-032.3968E -02-1.0819E-037.1034E-026.1204E-02E(12th) / C89.3639E-043.7150 E-03-2.1754E-02-1.7128E-02-1.2332E-02F(14th) / C91.4503E-04-1. 4067E-031.5223E-024.9144E-032.0494E-03G(16th) / C10-8.1086E-06- 1.7517E-03-3.8432E-03-1.1093E-03-1.1424E-02H(18th) / C11-3.002 8E-05-1.0166E-031.3274E-036.6764E-048.0544E-04J(20th) / C12-7. 0778E-06-4.0586E-04-1.2625E-03-8.6243E-041.1416E-03K(22th) / C 131.6597E-07-1.5412E-041.5256E-042.9573E-041.2811E-03L(24th) / C145.2025E-067.7889E-05-5.8173E-055.2711E-041.2183E-03M(26th ) / C150.0000E+001.4741E-045.3164E-05-9.5286E-042.2398E-04N(28t h) / C160.0000E+001.2555E-04-2.1657E-055.6537E-04-2.0040E-04O( 30th) / C170.0000E+003.2332E-058.3407E-05-1.1148E-04-4.3518E-04

[0203] FIG. 8b is a graph showing spherical aberration of an optical system (600) according to one embodiment of the present disclosure, in which the horizontal axis represents a coefficient of longitudinal spherical aberration, the vertical axis represents a normalized distance from the optical axis (O), and shows a change in longitudinal spherical aberration according to the wavelength of light. The longitudinal spherical aberration is shown for light having wavelengths of, for example, 656.2700 (NM, nanometer), 587.5600 (NM), 546.0700 (NM), 486.1300 (NM), and 435.8300 (NM), respectively. FIG. 8C is a graph showing astigmatic field curves for light having a wavelength of 546.0700 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. 8D is a graph showing distortion for light having a wavelength of 546.0700 nm of an optical system (600) according to one embodiment of the present disclosure. The refractive index of the lens(es) mentioned in one embodiment may refer to the refractive index for light having a wavelength of approximately 587.6 nm (587.5600 nm).

[0204] [Example 5]

[0205] FIG. 9A is a schematic diagram illustrating an optical system according to an embodiment of the present disclosure. FIG. 9B is a graph illustrating spherical aberration of the optical system of FIG. 9A according to an embodiment of the present disclosure. FIG. 9C is a graph illustrating astigmatism of the optical system of FIG. 9A according to an embodiment of the present disclosure. FIG. 9D is a graph illustrating distortion of the optical system of FIG. 9A according to an embodiment of the present disclosure.

[0206] In the present disclosure, the configuration of the optical system (700) 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. 5A to 5D. The description of the first lens (L1), the second lens (L2), the third lens (L3), the fourth lens (L4), the fifth lens (L5), the aperture (sto), the filter member (F) and / or the image sensor (I) of the optical system (300) according to the embodiments of FIGS. 5A to 5D may be identically or similarly applied to the first lens (L1), the second lens (L2), the third lens (L3), the fourth lens (L4), the fifth lens (L5), the aperture (sto), the filter member (F) and / or the image sensor (I) of the optical system (700) according to the embodiments of FIGS. 9A to 9D.

[0207] The optical system (700) according to the embodiment of FIGS. 9a to 9d can satisfy [Equation 1], [Equation 2], and [Equation 3] described above in the embodiment of FIGS. 5a to 5d and can satisfy at least one of [Equation 4] to [Equation 8] described above.

[0208] In one embodiment, the optical system (700) may be manufactured with the specifications exemplified in the following [Table 14], and may have aspheric coefficients of [Table 15] and [Table 16]. In [Table 14], lens surface 1 may exemplify a gap between the first lens (L1) and the subject (obj), and a measured value of the thickness thereof may be the distance of the gap or the air gap. Lens surface 2 of [Table 2] may be an aperture (sto). Lens surface 'n' (wherein, n is 3 to 14) of [Table 2] may correspond to lens surface Sn (wherein, n is 3 to 14) which is the subject-side surface or the image-side surface of the lenses (L1, L2, L3, L4, L5) of the present disclosure. 'img' of [Table 2] may be an imaging surface (img) of the image sensor (I).

[0209] The optical system (700) implemented with the specifications of [Table 14] below may be a wide-angle optical system having a focal length (f) of about 3.17 mm, an F number (Fno) of about 2.28, and an angle of view (FOV) of about 81 degrees.

[0210] Lens surface (Surface) Radius of curvature (Radius) Thickness Refractive index (Nd) Abbe number (Vd) Object (obj) Infinity 400.0000 1 Infinity 0.1000 2 (Aperture (sto)) Infinity 0.0000 31.26990.43301.5439755.91412.70350.0200 58.63520.20001.6607420.3662.85380.3007 7-6.60740.36881.5671737.398-5.01690.4479 99.65600.31311.6144425.94104.28220.1513 111.15970.60541.5439755.91121.02730.2498 13infinity0.11001.5168064.2014infinity0.5897 imginfinity0.0004

[0211] [Table 15] and [Table 16] below describe the aspherical coefficients of the lenses (L1, L2, L3, L4, L5) of the optical system (700). The aspherical coefficients can be calculated using the above-described [Mathematical Formula 1] with reference to [Table 3] and [Table 4].

[0212] Lens surface S3S4S5S6S7K'(Conic)-5.8863E+00-4.9283E+01-5.4975E+01-6.6464E+005.4661E+01A(4th) / C44.9694E-02-4.3168E-022.2499E-034.4527E-02-5.8110E-02B(6th) / C5-7.6602 E-034.1791E-047.4353E-038.9108E-031.5539E-02C(8th) / C6-6.8788E-04-2.3430E-03-1.5578E-031.1074E-037.1542E-03D(10th) / C7-2.9311E-045.1379E-046.5758E-043.8296E-041.6676 E-03E(12th) / C8-3.2858E-05-1.1964E-04-1.6504E-04-9.8353E-057.9470E-05F(14th) / C9-7. 4747E-06-1.4370E-05-1.9037E-05-7.3120E-05-2.3940E-04G(16th) / C10-2.4716E-060.0000E +00-4.2041E-06-3.5569E-05-1.0749E-04H(18th) / C11-1.9342E-060.0000E+006.0318E-07-9. 3847E-06-2.7887E-05J(20th) / C121.3034E-060.0000E+002.4764E-08-7.5206E-07-4.6195E-06

[0213] 라이면(Surface)S8S9S10S11S12K'(Conic)-2.2359E+014.8948E+01-1.8599E+01-7.8127E+00-3. 7004E+00A(4th) / C4-1.0691E-01-3.4790E-012.6128E-02-1.0305E+00-1.5733E+00B(6th) / C52 .1684E-02-1.1878E-016.2172E-033.8960E-012.9826E-01C(8th) / C61.0729E-024.2320E-02-2 .2585E-01-1.0841E-01-5.4057E-02D(10th) / C72.2329E-031.0355E-022.9432E-011.5144E-02 2.6931E-02E(12th) / C87.6609E-045.8801E-03-2.0432E-013.8260E-03-2.8135E-03F(14th) / C 91.6340E-05-1.6815E-038.4302E-02-3.7382E-032.4453E-03G(16th) / C103.7115E-05-9.4248 E-04-1.8836E-021.0793E-03-2.6018E-03H(18th) / C111.5500E-06-6.4382E-041.7278E-03-8. 3717E-05-5.6438E-04J(20th) / C121.3503E-051.8312E-050.0000E+00-1.0978E-040.0000E+00

[0214] FIG. 9b is a graph showing spherical aberration of an optical system (700) according to one embodiment of the present disclosure, in which the horizontal axis represents a coefficient of longitudinal spherical aberration, the vertical axis represents a normalized distance from the optical axis (O), and shows a change in longitudinal spherical aberration according to the wavelength of light. The longitudinal spherical aberration is shown for light having wavelengths of, for example, 656.2700 (NM, nanometer), 587.5600 (NM), 546.0700 (NM), 486.1300 (NM), and 435.8300 (NM), respectively. FIG. 9c is a graph showing astigmatic field curves for light having a wavelength of 546.0700 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. 9d is a graph showing distortion for light having a wavelength of 546.0700 nm of an optical system (700) according to one embodiment of the present disclosure. The refractive index of the lens(es) mentioned in one embodiment may refer to the refractive index for light having a wavelength of approximately 587.6 nm (587.5600 nm).

[0215] [Example 6]

[0216] FIG. 10A is a schematic diagram illustrating an optical system according to an embodiment of the present disclosure. FIG. 10B is a graph illustrating spherical aberration of the optical system of FIG. 10A according to an embodiment of the present disclosure. FIG. 10C is a graph illustrating astigmatism of the optical system of FIG. 10A according to an embodiment of the present disclosure. FIG. 10D is a graph illustrating distortion of the optical system of FIG. 10A according to an embodiment of the present disclosure.

[0217] In the present disclosure, the configuration of the optical system (800) 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. 5A to 5D. The description of the first lens (L1), the second lens (L2), the third lens (L3), the fourth lens (L4), the fifth lens (L5), the aperture (sto), the filter member (F) and / or the image sensor (I) of the optical system (300) according to the embodiments of FIGS. 5A to 5D may be identically or similarly applied to the first lens (L1), the second lens (L2), the third lens (L3), the fourth lens (L4), the fifth lens (L5), the aperture (sto), the filter member (F) and / or the image sensor (I) of the optical system (800) according to the embodiments of FIGS. 10A to 10D.

[0218] The optical system (800) according to the embodiment of FIGS. 10a to 10d can satisfy [Equation 1], [Equation 2], and [Equation 3] described above in the embodiment of FIGS. 5a to 5d and can satisfy at least one of [Equation 4] to [Equation 8] described above.

[0219] In one embodiment, the optical system (800) can be manufactured with the specifications exemplified in the following [Table 17], and can have aspheric coefficients of [Table 18] and [Table 19]. In [Table 17], lens surface 1 can exemplify a gap between the first lens (L1) and the subject (obj), and the measured value of the thickness can be the distance of the gap or the air gap. Lens surface 2 of [Table 2] can be an aperture (sto). Lens surface 'n' (wherein, n is 3 to 14) of [Table 2] can correspond to lens surface Sn (wherein, n is 3 to 14) which is the subject-side surface or the image-side surface of the lenses (L1, L2, L3, L4, L5) of the present disclosure. 'img' of [Table 2] can be an imaging surface (img) of the image sensor (I).

[0220] The optical system (800) implemented with the specifications of [Table 17] below may be a wide-angle optical system having a focal length (f) of about 3.17 mm, an F number (Fno) of about 2.28, and an angle of view (FOV) of about 81 degrees.

[0221] Lens surface (Surface) Radius of curvature (Radius) Thickness Refractive index (Nd) Abbe number (Vd) Object (obj) Infinity 400.0000 1 Infinity 0.1000 2 (Aperture (sto)) Infinity 0.0050 31.600 90.7698 1.54 3975 5.914-7.120 60.0200 515.06 170.2000 1.660 742 0.366 2.99 560.3267 7-8.164 00.33 131.567 173 7.39 8-11.562 60.2376 98.6 1970.4666 1.567 1737.39 108.0724 0.1184 111.01070.52981.5439755.91120.82350.2650 13infinity0.11001.5168064.2014infinity0.5888 imginfinity0.0012

[0222] [Table 18] and [Table 19] below describe the aspherical coefficients of the lenses (L1, L2, L3, L4, L5) of the optical system (800). The aspherical coefficients can be calculated using the above-described [Mathematical Formula 1] with reference to [Table 3] and [Table 4].

[0223] Lens surface S3 S4 S5 S6 S7 K' (Conic) -8.3378 E + 006.4617 E + 011.1192 E + 01 - 7.8621 E + 005.6451 E + 01A (4th) / C43.2691 E - 02 - 3.7282 E - 02 - 6.5115 E - 034.5096 E - 02 - 7.5742 E - 02B (6th) / C5 - 4.5669 E-034.8478E-036.8068E-034.6399E-031.4727E-02C(8th) / C61.1983E-04-5.4568E-04-1.5510E-041.1602E-038.1401E-03D(10th) / C7-6.4341E-052.1699E-041.0247E-042.9832E-042.3035 E-03E(12th) / C84.6530E-06-1.1667E-04-1.2179E-04-7.3452E-052.0483E-04F(14th) / C9-1.9 132E-061.0218E-041.0108E-043.2188E-05-4.1994E-04G(16th) / C108.7109E-07-3.2375E-05- 3.5050E-05-2.5767E-05-1.6979E-04H(18th) / C11-1.4934E-061.1506E-05-6.6719E-07-1.018 9E-05-4.9171E-05J(20th) / C125.2237E-06-8.2088E-07-4.3065E-06-1.3005E-05-2.2299E-05

[0224] Lens surface (Surface) S8 S9 S10 S11 S12 K' (Conic) 6.7206 E + 01 3.9097 E + 01 - 5.2312 E + 01 - 5.4893 E + 00 - 3.6744 E + 00 A (4th) / C4 - 1.7901 E - 01 - 2.8043 E - 01 3.3046 E - 02 - 1.3385 E + 00 - 1.6821 E + 00 B (6th) / C5 1.5 479E-02-1.2849E-019.4443E-035.4094E-013.6706E-01C(8th) / C61.8252E-024.0753E-02-2.2 684E-01-1.8375E-01-9.0652E-02D(10th) / C72.4777E-034.9841E-032.9437E-013.7589E-023.6 016E-02E(12th) / C81.9084E-038.3422E-03-2.0431E-012.0676E-03-1.0255E-02F(14th) / C9-5 .8697E-04-1.3835E-038.4305E-02-2.9112E-033.8119E-03G(16th) / C10-1.0323E-04-1.8422E- 04-1.8835E-02-3.6491E-04-3.2560E-03H(18th) / C11-1.4722E-04-7.1241E-041.7263E-037.5 594E-048.1239E-04J(20th) / C12-7.4059E-07-9.0764E-061.3549E-07-2.2895E-04-6.9790E-05

[0225] FIG. 10b is a graph showing spherical aberration of an optical system (800) according to one embodiment of the present disclosure, in which the horizontal axis represents a coefficient of longitudinal spherical aberration, the vertical axis represents a normalized distance from the optical axis (O), and shows a change in longitudinal spherical aberration according to the wavelength of light. The longitudinal spherical aberration is shown for light having wavelengths of, for example, 656.2700 (NM, nanometer), 587.5600 (NM), 546.0700 (NM), 486.1300 (NM), and 435.8300 (NM), respectively. FIG. 10c is a graph showing astigmatic field curves for light having a wavelength of 546.0700 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. 10d is a graph showing distortion for light having a wavelength of 546.0700 nm of an optical system (800) according to one embodiment of the present disclosure. The refractive index of the lens(es) mentioned in one embodiment may refer to the refractive index for light having a wavelength of approximately 587.6 nm (587.5600 nm).

[0226] [Example 7]

[0227] FIG. 11A is a schematic diagram illustrating an optical system according to an embodiment of the present disclosure. FIG. 11B is a graph illustrating spherical aberration of the optical system of FIG. 11A according to an embodiment of the present disclosure. FIG. 11C is a graph illustrating astigmatism of the optical system of FIG. 11A according to an embodiment of the present disclosure. FIG. 11D is a graph illustrating distortion of the optical system of FIG. 11A according to an embodiment of the present disclosure.

[0228] In the present disclosure, the configuration of the optical system (900) 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. 5A to 5D. The description of the first lens (L1), the second lens (L2), the third lens (L3), the fourth lens (L4), the fifth lens (L5), the aperture (sto), the filter member (F) and / or the image sensor (I) of the optical system (300) according to the embodiments of FIGS. 5A to 5D may be identically or similarly applied to the first lens (L1), the second lens (L2), the third lens (L3), the fourth lens (L4), the fifth lens (L5), the aperture (sto), the filter member (F) and / or the image sensor (I) of the optical system (900) according to the embodiments of FIGS. 11A to 11D.

[0229] The optical system (900) according to the embodiment of FIGS. 11a to 11d can satisfy [Equation 1], [Equation 2], and [Equation 3] described above in the embodiment of FIGS. 5a to 5d and can satisfy at least one of [Equation 4] to [Equation 8] described above.

[0230] In one embodiment, the optical system (900) can be manufactured with the specifications exemplified in the following [Table 20], and can have aspheric coefficients of [Table 21] and [Table 22]. In [Table 20], lens surface 1 can exemplify a gap between the first lens (L1) and the subject (obj), and the measured value of the thickness can be the distance of the gap or the air gap. Lens surface 2 of [Table 2] can be an aperture (sto). Lens surface 'n' (wherein n is 3 to 14) of [Table 2] can correspond to lens surface Sn (wherein n is 3 to 14) which is the subject-side surface or the image-side surface of the lenses (L1, L2, L3, L4, L5) of the present disclosure. 'img' of [Table 2] can be an imaging surface (img) of the image sensor (I).

[0231] The optical system (900) implemented with the specifications of [Table 20] below may be a wide-angle optical system having a focal length (f) of about 3.23 mm, an F number (Fno) of about 2.28, and an angle of view (FOV) of about 81 degrees.

[0232] Lens surface (Surface) Radius of curvature (Radius) Thickness Refractive index (Nd) Abbe number (Vd) Object (obj) Infinity 400.0000 1 Infinity 0.1000 2 (Aperture (sto)) Infinity 0.0050 31.6298 0.775 31.54 3975 5.914 -7.237 30.0200 513.439 40.2000 1.660 742 0.366 2.957 50.3317 7-8.496 40.337 21.567 173 7.39 8 -11.649 20.2506 98.67000.459 21.567 173 7.39 106.55 77 0.1243 111.01570.55241.5439755.91120.84650.2693 13infinity0.11001.5168064.2014infinity0.6020 imginfinity-0.0120

[0233] [Table 21] and [Table 22] below describe the aspherical coefficients of the lenses (L1, L2, L3, L4, L5) of the optical system (900). The aspherical coefficients can be calculated using the above-described [Mathematical Formula 1] with reference to [Table 3] and [Table 4].

[0234] Lens surface S3 S4 S5 S6 S7 K' (Conic) -8.3793 E + 006.5562 E + 014.5583 E + 00 - 7.8731 E + 005.7491 E + 01A (4th) / C43.2324 E - 02 - 3.7282 E - 02 - 7.1012 E - 034.5303 E - 02 - 7.7264 E - 02B (6th) / C5 - 4.6036 E-034.5591E-036.5347E-034.7371E-031.3397E-02C(8th) / C61.2422E-04-5.9917E-04-1.6166E-041.1704E-037.9483E-03D(10th) / C7-6.9244E-052.8108E-041.5955E-043.4300E-042.2875 E-03E(12th) / C88.3083E-06-1.7885E-04-1.7852E-04-9.2116E-053.4800E-04F(14th) / C9-4. 7039E-061.1012E-041.1429E-043.5195E-05-3.9742E-04G(16th) / C107.1107E-07-3.4281E-05 -2.8501E-05-2.6931E-05-1.5855E-04H(18th) / C11-5.2338E-061.5004E-054.8510E-07-8.870 7E-06-5.9234E-05J(20th) / C125.7100E-06-3.5580E-06-6.1278E-06-1.6170E-05-2.0489E-05

[0235] Lens surface (Surface) S8 S9 S10 S11 S12 K' (Conic) 4.7765 E+01 3.6714 E+01-8.6965 E+01-5.4829 E+00-3.6570 E+00A(4th) / C4-1.7736 E-01-2.6971 E-013.1777 E-02-1.3385 E+00-1.6990 E+00B(6th) / C51.3 936E-02-1.3263E-018.9440E-035.3698E-013.6492E-01C(8th) / C61.7399E-023.6552E-02-1.9 834E-01-1.7796E-01-8.7891E-02D(10th) / C72.2283E-033.4666E-032.4783E-013.4392E-023.8 442E-02E(12th) / C81.9439E-038.4847E-03-1.6554E-012.3093E-03-1.0757E-02F(14th) / C9-5 .3217E-04-9.2600E-046.5746E-02-2.4262E-033.8227E-03G(16th) / C10-6.9804E-059.7867E- 05-1.4138E-02-6.0886E-04-3.2631E-03H(18th) / C11-1.4321E-04-6.2886E-041.2468E-037.4 212E-047.5279E-04J(20th) / C12-7.1674E-06-3.7603E-060.0000E+00-1.8901E-04-1.4867E-04

[0236] FIG. 11b is a graph showing spherical aberration of an optical system (900) according to one embodiment of the present disclosure, in which the horizontal axis represents a coefficient of longitudinal spherical aberration, the vertical axis represents a normalized distance from the optical axis (O), and shows a change in longitudinal spherical aberration according to the wavelength of light. The longitudinal spherical aberration is shown for light having wavelengths of, for example, 656.2700 (NM, nanometer), 587.5600 (NM), 546.0700 (NM), 486.1300 (NM), and 435.8300 (NM), respectively. FIG. 11C is a graph showing astigmatic field curves for light having a wavelength of 546.0700 nm of an optical system (900) according to an 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 having a wavelength of 546.0700 nm of an optical system (900) according to an embodiment of the present disclosure. The refractive index of the lens(es) mentioned in one embodiment may refer to the refractive index for light having a wavelength of approximately 587.6 nm (587.5600 nm). An optical system including a plurality of lenses can be applied to camera modules of various electronic devices (e.g., smartphones, tablet PCs, smart watches, drones). These optical systems may be positioned beneath the display, for example, in a through-hole (or recess) formed in a portion of the display. Reducing the size of the through-hole in the display may be advantageous in terms of expanding the display screen area and improving the external design of the electronic device.When the aperture of the optical system is positioned between the apex of the subject-side surface of the first lens from the subject side and the subject, it is advantageous for reducing the through-hole of the display, but it may be difficult to secure performance such as the peripheral light ratio and a bright optical system with a wide angle of view compared to when the aperture is positioned between the subject-side surface and the image side surface of the first lens from the subject side.

[0237] According to one embodiment of the present disclosure, in order to at least resolve the above-described problems and / or disadvantages and to provide at least the advantages described below, an optical system having a structure in which an aperture is arranged between the apex of a subject-side surface of a first lens from the subject side and the subject (e.g., aperture stop on barrel (AOB)) while securing performance such as a peripheral light ratio and having a high pixel count, a bright (e.g., F number of about 2.4 or less), and a wide (e.g., angle of view of about 76 degrees or more) optical system can be provided.

[0238] According to one embodiment of the present disclosure, an optical system may be provided for implementing a high-pixel, bright, wide-angle optical device (e.g., a front camera) that is miniaturized and / or slim enough to be placed in a through hole or recess formed in a display. According to one embodiment of the present disclosure, an optical system may be provided that is easily mounted on a miniaturized and / or lightweight electronic device such as a smartphone, and that can contribute to expanding the optical function or improving the optical performance of the electronic device.

[0239] The technical tasks to be achieved from the disclosure of this document are not limited to the technical tasks mentioned above, and other technical tasks not mentioned will be clearly understood by a person having ordinary skill in the technical field of the present disclosure from the description of this document.

[0240] The effects that can be obtained from the disclosure of this document are not limited to the effects mentioned above, and other effects that are not mentioned can be clearly understood by a person having ordinary skill in the technical field to which this document belongs from the description of this document.

[0241] According to one embodiment of the present disclosure, an electronic device (101) may be provided. The electronic device may include an optical system (300, 400, 500, 600, 700, 800, 900). The optical system may include a lens group including at least five lenses arranged along an optical axis (O) in a direction from an object (obj) side toward an image side, the lens group including a first lens (L1), a second lens (L2), a third lens (L3) having a refractive power and including an image-side surface (S8) convex toward the image side, a fourth lens (L4), and a fifth lens (L5) having positive or negative refractive power, a lens barrel (10) formed to accommodate the lens group, an image sensor including an image-forming surface (img) on ​​which an image is formed, and an aperture (sto) disposed in the lens barrel. The above optical system can satisfy the following [Equation 1], [Equation 2], [Equation 3], and [Equation 7].

[0242] [Formula 1]

[0243] ASTL - TTL 0

[0244] [Formula 2]

[0245] FOV 76 degrees

[0246] [Formula 3]

[0247] f / EPD 2.4

[0248] [Formula 7]

[0249] SD / TTL 0.9

[0250] (Here, ASTL of [Formula 1] is the distance from the aperture to the image plane, TTL (total track length) is the distance from the subject-side surface (S3) of the first lens to the image plane, FOV (field of view) of [Formula 2] is the total angle of view of the optical system, f (focal length) of [Formula 3] is the synthetic focal length of the optical system, EPD (entrance pupil diameter) is the entrance pupil of the optical system, SD is the distance from the subject-side surface of the first lens to the image-side surface (S12) of the fifth lens, and TTL is the distance from the subject-side surface of the first lens to the image plane).

[0251] According to one embodiment, the optical system can satisfy the following [Equation 4].

[0252] [Formula 4]

[0253] TTL / (IH *2) < 0.75

[0254] (Here, TTL is the distance from the subject side of the first lens to the imaging plane, and IH (Image Height) is the effective image height of the image sensor.)

[0255] According to one embodiment, the fourth lens may have a negative refractive power and satisfy the following [Equation 5].

[0256] [Formula 5]

[0257] 17 < V4 < 40

[0258] (Here, V4 is the Abbe number of the fourth lens at a wavelength of 587.6 nm)

[0259] According to one embodiment, the optical system can satisfy the following [Equation 6].

[0260] [Formula 6]

[0261] N2 1.66

[0262] (Here, N2 is the refractive index of the second lens at a wavelength of 587.6 nm)

[0263] According to one embodiment, the upper side surface (S8) of the third lens may have a meniscus shape that is convex toward the upper side.

[0264] According to one embodiment, the first lens has a defined refractive power, and the subject-side surface of the first lens may be convex toward the subject.

[0265] According to one embodiment, the second lens has a negative refractive power, and the optical system can satisfy the following [Equation 8].

[0266] [Formula 8]

[0267] CT2 0.17 mm

[0268] (Here, CT2 (Center Thickness 2) is the center thickness of the second lens)

[0269] According to one embodiment, the second lens may have a negative refractive power and include an image-side surface (S6) that is concave toward the image side.

[0270] According to one embodiment, at least one of the subject-side surface (S9) or the image-side surface (S10) of the fourth lens may have a curved shape.

[0271] According to one embodiment, at least one of the subject-side surface (S11) or the image-side surface (S12) of the fifth lens may have a curved shape.

[0272] According to one embodiment, the aperture may be positioned between the subject and the first lens and may be arranged to at least partially face the subject-side surface (S3) of the first lens.

[0273] According to one embodiment, the lens barrel may include an opening (10a) facing the subject-side surface of the first lens.

[0274] According to one embodiment, the display (201) may further be included. The optical system may be arranged such that the first lens faces a first area of ​​the display, and light from outside the electronic device may be transmitted to the optical system through the first area.

[0275] According to one embodiment, the first region may include at least one of a through hole or a recess.

[0276] According to one embodiment of the present disclosure, an optical system (300, 400, 500, 600, 700, 800, 900) may be provided. The optical system may include a lens group including at least five lenses arranged along an optical axis (O) in a direction from an object (obj) side toward an image side, the lens group including a first lens (L1), a second lens (L2), a third lens (L3) having a refractive power and including an image-side surface (S8) convex toward the image side, a fourth lens (L4) having a negative refractive power, and a fifth lens (L5) having a positive or negative refractive power, an image sensor including an image-forming surface (img) on ​​which an image is formed, and an aperture (sto). The Abbe number of the fourth lens at 587.6 nm may be greater than 17 and less than 40. The above optical system can satisfy the following [Equation 1], [Equation 2], [Equation 3], and [Equation 5].

[0277] [Formula 1]

[0278] ASTL - TTL 0

[0279] [Formula 2]

[0280] FOV 76 degrees

[0281] [Formula 3]

[0282] f / EPD 2.4

[0283] [Formula 5]

[0284] 17 < V4 < 40 (wherein, ASTL in [Formula 1] is the distance from the aperture to the imaging plane, TTL (total track length) is the distance from the subject side (S3) of the first lens to the imaging plane, FOV (field of view) in [Formula 2] is the total angle of view of the optical system, f (focal length) in [Formula 3] is the composite focal length of the optical system, EPD (entrance pupil diameter) is the entrance pupil of the optical system, and V4 is the Abbe number of the fourth lens at a wavelength of 587.6 nm)

[0285] According to one embodiment, the aperture may be positioned between the subject and the first lens and may be arranged to at least partially face the subject-side surface (S3) of the first lens.

[0286] According to one embodiment, the lens barrel (10) formed to accommodate the plurality of lenses may further include a lens barrel including an opening (10a) facing the subject side of the first lens.

[0287] According to one embodiment, the first lens has a defined refractive power, the subject-side surface of the first lens is convex toward the subject, and can satisfy the following [Equation 4] and [Equation 6].

[0288] [Formula 4]

[0289] TTL / (IH *2) < 0.75

[0290] (Here, TTL is the distance from the subject side of the first lens to the imaging plane, and IH (Image Height) is the effective image height of the image sensor.)

[0291] [Formula 6]

[0292] N2 1.66

[0293] (Here, N2 is the refractive index of the second lens at a wavelength of 587.6 nm)

[0294] According to one embodiment, the following [Formula 7] can be satisfied.

[0295] [Formula 7]

[0296] SD / TTL 0.9

[0297] (Here, SD is the distance from the subject side of the first lens to the image side (S12) of the fifth lens, and TTL is the distance from the subject side of the first lens to the image plane.)

[0298] According to one embodiment, the second lens has a negative refractive power and includes an upper surface (S6) of a concave shape toward the upper side, and can satisfy the following [Equation 8].

[0299] [Formula 8]

[0300] CT2 0.17 mm

[0301] (Here, CT2 (Center Thickness 2) is the center thickness of the second lens)

[0302] The embodiments disclosed in this document should be understood as illustrative rather than limiting. It will be apparent to those skilled in the art that various changes in form and detail may be made without departing from the overall scope disclosed in this document, including the appended claims and their equivalents.

[0303] An electronic device according to an embodiment disclosed in this document may take 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 home appliance. The electronic device according to an embodiment of this document is not limited to the aforementioned devices.

[0304] It should be understood that the embodiments of this document and the terminology used herein are not intended to limit the technical features described in this document to a specific embodiment, but include various modifications, equivalents, or substitutes of the 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 the item, unless the context clearly indicates otherwise. In this disclosure, each of the phrases "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" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another component (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0305] The term "module" used in one embodiment of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component 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).

[0306] An embodiment of the present document may be implemented as software (e.g., a program (140)) including one or more instructions stored in a storage medium (e.g., an internal memory (136) or an external memory (138)) readable by a machine (e.g., an electronic device (101)). For example, a processor (e.g., a processor (120)) of the machine (e.g., an electronic device (101)) may call at least one instruction among 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 executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.

[0307] According to one embodiment, the method according to one embodiment disclosed in the present document may be provided as a computer program product. The computer program product may be traded between sellers and buyers 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 may be provided through an application store (e.g., Play Store). TM ) or directly between two user devices (e.g., smart phones), online distribution (e.g., downloading or uploading). In the case of online distribution, at least a portion of the computer program product may be at least temporarily stored or temporarily created in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0308] According to one embodiment, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to one embodiment, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to one embodiment, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

In an electronic device (101) including an optical system (300; 400; 500; 600; 700; 800; 900), The above optical system, A lens group including at least five lenses arranged along an optical axis (O) in a direction from an object (obj) side toward an image side, the lens group including a first lens (L1), a second lens (L2), a third lens (L3) having refractive power and including an image-side surface (S8) convex toward the image side, a fourth lens (L4), and a fifth lens (L5) having positive or negative refractive power; A lens barrel (10) formed to accommodate the above lens group An image sensor (I) including an image plane (img) on ​​which an image is formed; and Includes an aperture (sto) arranged on the lens barrel, The above optical system is an electronic device that satisfies the following [Equation 1], [Equation 2], [Equation 3] and [Equation 7]. [Formula 1] ASTL - TTL 0 [Formula 2] FOV 76 degrees [Formula 3] f / EPD 2.4 [Formula 7] SD / TTL 0.9 (Here, ASTL of [Formula 1] is the distance from the aperture to the image plane, TTL (total track length) is the distance from the subject-side surface (S3) of the first lens to the image plane, FOV (field of view) of [Formula 2] is the total angle of view of the optical system, f (focal length) of [Formula 3] is the synthetic focal length of the optical system, EPD (entrance pupil diameter) is the entrance pupil of the optical system, SD is the distance from the subject-side surface of the first lens to the image-side surface (S12) of the fifth lens, and TTL is the distance from the subject-side surface of the first lens to the image plane). In the first paragraph, The above optical system is an electronic device that satisfies the following [Formula 4]. [Formula 4] TTL / (IH *2) < 0.75 (Here, TTL is the distance from the subject side of the first lens to the imaging plane, and IH (Image Height) is the effective image height of the image sensor.) In claim 1 or 2, An electronic device in which the fourth lens has a negative refractive power and satisfies the following [Formula 5]. [Formula 5] 17 < V4 < 40 (Here, V4 is the Abbe number of the fourth lens at a wavelength of 587.6 nm) In any one of the first to third clauses, The above optical system is an electronic device that satisfies the following [Formula 6]. [Formula 6] N2 1.66 (Here, N2 is the refractive index of the second lens at a wavelength of 587.6 nm) In any one of claims 1 to 4, An electronic device in which the upper side surface (S8) of the third lens has a meniscus shape convex toward the upper side. In any one of claims 1 to 5, An electronic device wherein the first lens has a defined refractive power, and the subject-side surface of the first lens is convex toward the subject. In any one of claims 1 to 6, An electronic device wherein the second lens has a negative refractive power, and the optical system satisfies the following [Equation 8]. [Formula 8] CT2 0.17 mm (Here, CT2 (Center Thickness 2) is the center thickness of the second lens) In any one of the first to seventh paragraphs, An electronic device, wherein the second lens has a negative refractive power and includes an image-side surface (S6) that is concave toward the image side. In any one of claims 1 to 8, An electronic device, wherein at least one of the subject-side surface (S9) or the image-side surface (S10) of the fourth lens has a curved shape. In any one of claims 1 to 9, An electronic device, wherein at least one of the subject-side surface (S11) or the image-side surface (S12) of the fifth lens has a curved shape. In any one of claims 1 to 10, An electronic device wherein the aperture is positioned between the subject and the first lens and is arranged at least partially facing the subject-side surface (S3) of the first lens. In any one of claims 1 to 11, An electronic device, wherein the lens barrel includes an opening (10a) facing the subject side of the first lens. In any one of claims 1 to 12, Further including a display (201), An electronic device wherein the optical system is arranged so that the first lens faces the first area of ​​the display, and light from outside the electronic device is transmitted to the optical system through the first area. In the 13th paragraph, An electronic device, wherein the first region comprises at least one of a through hole or a recess. In the optical system (300, 400, 500, 600, 700, 800, 900, optical system), A lens group including at least five lenses arranged along an optical axis (O) in a direction from an object (obj) side toward an image side, the lens group including a first lens (L1), a second lens (L2), a third lens (L3) having refractive power and including an image-side surface (S8) convex toward the image side, a fourth lens (L4) having negative refractive power, and a fifth lens (L5) having positive or negative refractive power; An image sensor including an imaging plane (img) on ​​which an image is formed; and Includes an aperture (sto), The Abbe number of the fourth lens at 587.6 nm is greater than 17 and less than 40, An optical system satisfying the following [Equation 1], [Equation 2], [Equation 3], and [Equation 5]. [Formula 1] ASTL - TTL 0 [Formula 2] FOV 76 degrees [Formula 3] f / EPD 2.4 [Formula 5] 17 < V4 < 40 (wherein, ASTL in [Formula 1] is the distance from the aperture to the imaging plane, TTL (total track length) is the distance from the subject side (S3) of the first lens to the imaging plane, FOV (field of view) in [Formula 2] is the total angle of view of the optical system, f (focal length) in [Formula 3] is the composite focal length of the optical system, EPD (entrance pupil diameter) is the entrance pupil of the optical system, and V4 is the Abbe number of the fourth lens at a wavelength of 587.6 nm)

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