Camera module and electronic device including the same
Patent Information
- Application Number
- KR1020250076333
- Authority / Receiving Office
- KR · KR
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2025-03-12
- Filing Date
- 2025-06-11
- Publication Date
- 2026-09-21
Smart Images

Figure PAT00013_ABST
Abstract
Description
Technology Field
[0001] The embodiments of the present disclosure relate to electronic devices, for example, camera modules and / or electronic devices including the same. Background Technology
[0002] Optical devices, such as cameras capable of capturing images or videos, have been widely used, and recently, digital cameras and video cameras equipped with solid-state image sensors, such as CCDs (charge coupled devices) or CMOS (complementary metal-oxide semiconductors), have become commonplace. Optical devices employing solid-state image sensors (CCDs or CMOS) are gradually replacing film-based optical devices because they make it easier to store, duplicate, and transfer images compared to film-based optical devices.
[0003] Recently, two or more selected from multiple optical devices, such as macro cameras, telephoto cameras, and / or wide-angle cameras, have been mounted on a single electronic device to improve the quality of captured images and to provide various visual effects to the images. For example, high-quality images can be obtained by acquiring images of a subject through multiple cameras with different optical characteristics and synthesizing them. As high-quality images are obtained by mounting multiple optical devices (e.g., cameras), electronic devices such as mobile communication terminals and smartphones are gradually replacing electronic devices specialized in shooting functions, such as digital compact cameras, and are expected to replace high-performance cameras such as digital single-lens reflex cameras (e.g., DSLRs) in the future.
[0004] The information described above may be provided as related art for the purpose of aiding understanding of the present disclosure. No claim or determination is made as to whether any of the foregoing may be applied as prior art in relation to the present disclosure. means of solving the problem
[0005] According to one embodiment of the present disclosure, a camera module may include an image sensor and a lens assembly configured to focus or guide light incident from outside the camera module to the image sensor. In one embodiment, the lens assembly may include a plurality of lenses sequentially aligned along an optical axis. In one embodiment, the nth lens (where 'n' is a natural number greater than or equal to 2) closest to the image sensor among the plurality of lenses may include four sides corresponding to four sides of the image sensor. In one embodiment, the lens assembly may satisfy the following [Condition 1; Ds ≤ Dl < Dm] while having a field of view of 70 degrees or more and 95 degrees or less. Here, 'Ds' is the length of the nth lens measured parallel to the shortest side of the image sensor, 'Dl' is the length of the nth lens measured parallel to the longest side of the image sensor, and 'Dm' may be the length of the nth lens measured parallel to the diagonal of the image sensor. In one embodiment, the lengths 'Ds', 'Dl', and / or 'Dm' may be measured so as to pass through the point where the optical axis (O) intersects the nth lens.
[0006] According to one embodiment of the present disclosure, a camera module may include an image sensor and a lens assembly configured to focus or guide light incident from outside the camera module to the image sensor. In one embodiment, the lens assembly may include a plurality of lenses sequentially aligned along an optical axis and a light guide frame disposed between the first lens, which is the furthest from the image sensor among the plurality of lenses, and the image sensor. In one embodiment, the nth lens (where 'n' is a natural number greater than or equal to 2) which is closest to the image sensor among the plurality of lenses may include four sides corresponding to four sides of the image sensor. In one embodiment, the lens assembly may have a field of view of 70 degrees or more and 95 degrees or less and satisfy the following [Condition 1; Ds ≤ Dl < Dm]. Here, 'Ds' is the length of the nth lens measured parallel to the shortest side of the image sensor, 'Dl' is the length of the nth lens measured parallel to the longest side of the image sensor, and 'Dm' may be the length of the nth lens measured parallel to the diagonal of the image sensor. In one embodiment, the lengths 'Ds', 'Dl', and / or 'Dm' may be measured so as to pass through the point where the optical axis (O) intersects the nth lens.
[0007] According to one embodiment of the present disclosure, a camera module may include a lens assembly configured to focus or guide light incident from outside the camera module to an image sensor using an image sensor and a plurality of lenses sequentially aligned along an optical axis. In one embodiment, the lens assembly may include a light guide frame disposed between the first lens, which is furthest from the image sensor among the plurality of lenses, and the nth lens (where 'n' is a natural number greater than or equal to 2) which is closest to the image sensor among the plurality of lenses may include four sides corresponding to four sides of the image sensor. In one embodiment, the lens assembly may satisfy the following [Equation 3; EFL / Fno < Ds < IMH]. In one embodiment, 'EFL' is the focal length of the lens assembly, 'Fno' is the F-number of the lens assembly, 'Ds' is the length of the nth lens measured parallel to the shortest side of the image sensor, and 'IMH' may be the diagonal length of the image sensor.
[0008] According to one embodiment of the present disclosure, an electronic device may include a camera module comprising an image sensor and a plurality of lenses sequentially aligned along an optical axis, configured to focus or guide light incident from outside the electronic device to the image sensor; at least one processor; and a memory storing a command that, when executed by the at least one processor, causes the electronic device to acquire an image of a subject using the image sensor. In one embodiment, the nth lens (where 'n' is a natural number greater than or equal to 2) among the plurality of lenses closest to the image sensor may include four sides corresponding to four sides of the image sensor, and the lens assembly may satisfy the following [Condition 3; EFL / Fno < Ds < IMH]. Here, 'EFL' is the focal length of the lens assembly, 'Fno' is the F-number of the lens assembly, 'Ds' is the length of the nth lens measured parallel to the shortest side of the image sensor, and 'IMH' may be the diagonal length of the image sensor. Brief explanation of the drawing
[0009] The aspects, configurations, and / or advantages described above regarding one embodiment of the present disclosure may become more apparent from the following detailed description with reference to the accompanying drawings. FIG. 1 is a block diagram showing an electronic device in a network environment according to one embodiment of the present disclosure. FIG. 2 is a block diagram illustrating a camera module according to one embodiment of the present disclosure. FIG. 3 is a perspective view showing the front of an electronic device according to one embodiment of the present disclosure. FIG. 4 is a perspective view showing the rear side of an electronic device shown in FIG. 3, according to one embodiment of the present disclosure. FIG. 5 is a perspective view showing a camera module and / or lens assembly according to one embodiment of the present disclosure in partial cutaway form. FIG. 6 is a drawing for illustrating the arrangement of a light guide frame in a camera module and / or lens assembly according to one embodiment of the present disclosure. FIG. 7 is a drawing for illustrating the arrangement of a light guide frame in a camera module and / or lens assembly according to one embodiment of the present disclosure. FIG. 8 is a drawing showing a camera module and / or lens assembly according to one embodiment of the present disclosure, and is a drawing for explaining an arrangement in a plane parallel to the optical axis and the short side of the image sensor. FIG. 9 is a graph showing spherical aberration in the arrangement of FIG. 8 according to one embodiment of the present disclosure. FIG. 10 is a graph showing non-point difference in the arrangement of FIG. 8 according to one embodiment of the present disclosure. FIG. 11 is a graph showing the distortion rate in the array of FIG. 8 according to one embodiment of the present disclosure. FIG. 12 is a drawing showing the camera module and / or lens assembly of FIG. 8, and is a drawing for explaining the arrangement in a plane parallel to the optical axis and the long side of the image sensor. FIG. 13 is a graph showing spherical aberration in the arrangement of FIG. 12 according to one embodiment of the present disclosure. FIG. 14 is a graph showing non-point difference in the arrangement of FIG. 12 according to one embodiment of the present disclosure. FIG. 15 is a graph showing the distortion rate in the array of FIG. 12 according to one embodiment of the present disclosure. FIG. 16 is a drawing showing the camera module and / or lens assembly of FIG. 8, and is a drawing for explaining the arrangement in a plane parallel to the optical axis and the diagonal of the image sensor. FIG. 17 is a graph showing spherical aberration in the arrangement of FIG. 16 according to one embodiment of the present disclosure. FIG. 18 is a graph showing non-point difference in the arrangement of FIG. 16 according to one embodiment of the present disclosure. FIG. 19 is a graph showing the distortion rate in the array of FIG. 16 according to one embodiment of the present disclosure. FIG. 20 is a graph for illustrating the relative illumination of the camera module and / or lens assembly of FIG. 8 according to one embodiment of the present disclosure. FIG. 21 is a drawing showing a camera module and / or lens assembly according to one embodiment of the present disclosure, and is a drawing for explaining an arrangement in a plane parallel to the optical axis and the short side of the image sensor. FIG. 22 is a graph showing spherical aberration in the arrangement of FIG. 21 according to one embodiment of the present disclosure. FIG. 23 is a graph showing non-point difference in the arrangement of FIG. 21 according to one embodiment of the present disclosure. FIG. 24 is a graph showing the distortion rate in the array of FIG. 21 according to one embodiment of the present disclosure. FIG. 25 is a drawing showing the camera module and / or lens assembly of FIG. 21, and is a drawing for explaining the arrangement in a plane parallel to the optical axis and the long side of the image sensor. FIG. 26 is a graph showing spherical aberration in the arrangement of FIG. 25 according to one embodiment of the present disclosure. FIG. 27 is a graph showing non-point difference in the arrangement of FIG. 25 according to one embodiment of the present disclosure. FIG. 28 is a graph showing the distortion rate in the array of FIG. 25 according to one embodiment of the present disclosure. FIG. 29 is a drawing showing the camera module and / or lens assembly of FIG. 21, and is a drawing for explaining the arrangement in a plane parallel to the optical axis and the diagonal of the image sensor. FIG. 30 is a graph showing spherical aberration in the arrangement of FIG. 29 according to one embodiment of the present disclosure. FIG. 31 is a graph showing non-point difference in the arrangement of FIG. 29 according to one embodiment of the present disclosure. FIG. 32 is a graph showing the distortion rate in the array of FIG. 29 according to one embodiment of the present disclosure. FIG. 33 is a graph for illustrating the relative illumination of the camera module and / or lens assembly of FIG. 21 according to one embodiment of the present disclosure. FIG. 34 is a drawing showing a camera module and / or lens assembly according to one embodiment of the present disclosure, and is a drawing for explaining an arrangement in a plane parallel to the optical axis and the short side of the image sensor. FIG. 35 is a graph showing spherical aberration in the arrangement of FIG. 34 according to one embodiment of the present disclosure. FIG. 36 is a graph showing non-point difference in the arrangement of FIG. 34 according to one embodiment of the present disclosure. FIG. 37 is a graph showing the distortion rate in the array of FIG. 34 according to one embodiment of the present disclosure. FIG. 38 is a drawing showing the camera module and / or lens assembly of FIG. 34, and is a drawing for explaining the arrangement in a plane parallel to the optical axis and the long side of the image sensor. FIG. 39 is a graph showing spherical aberration in the arrangement of FIG. 38 according to one embodiment of the present disclosure. FIG. 40 is a graph showing non-point difference in the arrangement of FIG. 38 according to one embodiment of the present disclosure. FIG. 41 is a graph showing the distortion rate in the array of FIG. 38 according to one embodiment of the present disclosure. FIG. 42 is a drawing showing the camera module and / or lens assembly of FIG. 34, and is a drawing for explaining the arrangement in a plane parallel to the optical axis and the diagonal of the image sensor. FIG. 43 is a graph showing spherical aberration in the arrangement of FIG. 42 according to one embodiment of the present disclosure. FIG. 44 is a graph showing non-point difference in the arrangement of FIG. 42 according to one embodiment of the present disclosure. FIG. 45 is a graph showing the distortion rate in the array of FIG. 42 according to one embodiment of the present disclosure. FIG. 46 is a graph for illustrating the relative illumination of the camera module and / or lens assembly of FIG. 34 according to one embodiment of the present disclosure. FIG. 47 is a drawing showing a camera module and / or lens assembly according to one embodiment of the present disclosure, and is a drawing for explaining an arrangement in a plane parallel to the optical axis and the short side of the image sensor. FIG. 48 is a graph showing spherical aberration in the arrangement of FIG. 47 according to one embodiment of the present disclosure. FIG. 49 is a graph showing non-point difference in the arrangement of FIG. 47 according to one embodiment of the present disclosure. FIG. 50 is a graph showing the distortion rate in the array of FIG. 47 according to one embodiment of the present disclosure. FIG. 51 is a drawing showing the camera module and / or lens assembly of FIG. 47, and is a drawing for explaining the arrangement in a plane parallel to the optical axis and the long side of the image sensor. FIG. 52 is a graph showing spherical aberration in the arrangement of FIG. 51 according to one embodiment of the present disclosure. FIG. 53 is a graph showing non-point difference in the arrangement of FIG. 51 according to one embodiment of the present disclosure. FIG. 54 is a graph showing the distortion rate in the array of FIG. 51 according to one embodiment of the present disclosure. FIG. 55 is a drawing showing the camera module and / or lens assembly of FIG. 47, and is a drawing for explaining the arrangement in a plane parallel to the optical axis and the diagonal of the image sensor. FIG. 56 is a graph showing spherical aberration in the arrangement of FIG. 55 according to one embodiment of the present disclosure. FIG. 57 is a graph showing non-point difference in the arrangement of FIG. 55 according to one embodiment of the present disclosure. FIG. 58 is a graph showing the distortion rate in the array of FIG. 55 according to one embodiment of the present disclosure. FIG. 59 is a graph for illustrating the relative illumination of the camera module and / or lens assembly of FIG. 47 according to one embodiment of the present disclosure. FIG. 60 is a drawing showing a camera module and / or lens assembly according to one embodiment of the present disclosure, and is a drawing for explaining an arrangement in a plane parallel to the optical axis and the short side of the image sensor. FIG. 61 is a graph showing spherical aberration in the array of FIG. 60 according to one embodiment of the present disclosure. FIG. 62 is a graph showing non-point difference in the arrangement of FIG. 60 according to one embodiment of the present disclosure. FIG. 63 is a graph showing the distortion rate in the array of FIG. 60 according to one embodiment of the present disclosure. FIG. 64 is a drawing showing the camera module and / or lens assembly of FIG. 60, and is a drawing for explaining the arrangement in a plane parallel to the optical axis and the long side of the image sensor. FIG. 65 is a graph showing spherical aberration in the arrangement of FIG. 64 according to one embodiment of the present disclosure. FIG. 66 is a graph showing non-point difference in the arrangement of FIG. 64 according to one embodiment of the present disclosure. FIG. 67 is a graph showing the distortion rate in the array of FIG. 64 according to one embodiment of the present disclosure. FIG. 68 is a drawing showing the camera module and / or lens assembly of FIG. 60, and is a drawing for explaining the arrangement in a plane parallel to the optical axis and the diagonal of the image sensor. FIG. 69 is a graph showing spherical aberration in the arrangement of FIG. 68 according to one embodiment of the present disclosure. FIG. 70 is a graph showing non-point difference in the arrangement of FIG. 68 according to one embodiment of the present disclosure. FIG. 71 is a graph showing the distortion rate in the array of FIG. 68 according to one embodiment of the present disclosure. FIG. 72 is a graph for illustrating the relative illumination of the camera module and / or lens assembly of FIG. 60 according to one embodiment of the present disclosure. Throughout the attached drawings, similar parts, configurations, and / or structures may be assigned similar reference numbers. Specific details for implementing the invention
[0010] As electronic devices become increasingly miniaturized, the conditions for ensuring optical performance when integrating camera modules into these miniaturized devices are becoming increasingly challenging. For instance, while it may be easier to improve the optical performance of a camera module by increasing the number and size of lenses, these factors may be limited when integrating them into miniaturized devices. As user demand for more advanced optical performance grows, image sensor performance is improving through pixel count or size (e.g., image height); however, it may become increasingly difficult to implement a miniaturized lens assembly that provides optical performance commensurate with these image sensors (e.g., high-resolution or large-sized image sensors).
[0011] One embodiment of the present disclosure may provide a camera module having optical performance suitable for a high-performance image sensor and / or an electronic device including the same, for at least resolving the problems and / or disadvantages described above and at least providing the advantages described below.
[0012] One embodiment of the present disclosure may provide a camera module and / or an electronic device including the same that implements wide-angle characteristics (e.g., angle of view of approximately 70 degrees or more, approximately 95 degrees or less) or ultra-wide-angle characteristics.
[0013] One embodiment of the present disclosure may provide a camera module that is easy to miniaturize while providing wide-angle characteristics and / or an electronic device including the same.
[0014] The technical problems intended to be solved in this document are not limited to those mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art to which this disclosure belongs from the description below.
[0016] The following description relating to the attached drawings may provide an understanding of various exemplary embodiments of the present disclosure, including the claims and their corresponding contents. While the exemplary embodiments disclosed in the following description include various specific details to aid understanding, they are to be considered as one of various exemplary embodiments. Accordingly, those skilled in the art will understand that various changes and modifications to the various embodiments described herein may be made without departing from the scope and technical spirit of the disclosure. Additionally, for clarity and brevity, descriptions of well-known functions and configurations may be omitted.
[0017] The terms and words used in the following description and claims are not limited to their literal meanings but may be used to clearly and consistently describe an embodiment of the present disclosure. Accordingly, it will be apparent to a person skilled in the art that the following description of various embodiments of the disclosure is provided for illustrative purposes, not for the purpose of limiting the scope of the rights or the disclosure defined as equivalent thereto.
[0018] Unless the context clearly indicates otherwise, it should be understood that the singular forms of "a," "an," and "the" include a plural meaning. Thus, for example, "component surface" can be understood to include one or more of the component surfaces.
[0020] FIG. 1 is a block diagram of an electronic device (101) in a network environment (100) according to one embodiment of the present disclosure. Referring to FIG. 1, in the network environment (100), the electronic device (101) may communicate with an electronic device (102) through a first network (198) (e.g., a short-range wireless communication network) or may communicate with at least one of an electronic device (104) or a server (108) through a second network (199) (e.g., a long-range wireless communication network). According to one embodiment, the electronic device (101) may communicate with the electronic device (104) through a server (108). According to one embodiment, the electronic device (101) may include a processor (120), memory (130), input module (150), sound output module (155), display module (160), audio module (170), sensor module (176), interface (177), connection terminal (178), haptic module (179), camera module (180), power management module (188), battery (189), communication module (190), subscriber identification module (196), or antenna module (197). In one embodiment, at least one of these components (e.g., connection terminal (178)) may be omitted from the electronic device (101), or one or more other components may be added. In one embodiment, some of these components (e.g., sensor module (176), camera module (180), or antenna module (197)) may be integrated into a single component (e.g., display module (160)).
[0021] The processor (120) can control at least one other component (e.g., hardware or software component) of the electronic device (101) connected to the processor (120) by executing software (e.g., program (140)), for example, and can perform various data processing or operations. According to one embodiment, as at least part of the data processing or operations, the processor (120) can store commands or data received from other components (e.g., sensor module (176) or communication module (190)) in volatile memory (132), process the commands or data stored in volatile memory (132), and store the resulting data in non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., central processing unit or application processor) or an auxiliary processor (123) that can operate independently or together with it (e.g., graphics processing unit, neural processing unit (NPU), image signal processor, sensor hub processor, or communication processor). For example, if the electronic device (101) includes a main processor (121) and an auxiliary processor (123), the auxiliary processor (123) may be configured to use lower power than the main processor (121) or to be specialized for a designated function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as part thereof.
[0022] The auxiliary processor (123) may control at least some of the functions or states associated with at least one component of the electronic device (101) (e.g., display module (160), sensor module (176), or communication module (190)) on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. According to one embodiment, the auxiliary processor (123) (e.g., image signal processor or communication processor) may be implemented as part of another functionally related component (e.g., camera module (180) or communication module (190)). According to one embodiment, the auxiliary processor (123) (e.g., neural network processing unit) may include a hardware structure specialized for processing an artificial intelligence model. The artificial intelligence model may be generated through machine learning. Such learning may be performed, for example, on the electronic device (101) itself where the artificial intelligence model is executed, or through a separate server (e.g., server (108)). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model may include a plurality of artificial neural network layers.An artificial neural network may be a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to the hardware structure, the artificial intelligence model may include a software structure, either additionally or substantially.
[0023] The memory (130) can store various data used by at least one component of the electronic device (101) (e.g., processor (120) or sensor module (176)). The data may include, for example, input data or output data for software (e.g., program (140)) and related commands. The memory (130) may include volatile memory (132) or non-volatile memory (134).
[0024] The program (140) may be stored as software in memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).
[0025] The input module (150) can receive commands or data to be used for a component of the electronic device (101) (e.g., processor (120)) from outside the electronic device (101) (e.g., user). The input module (150) may include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).
[0026] The sound output module (155) can output a sound signal to the outside of the electronic device (101). The sound output module (155) may include, for example, a speaker or a receiver. The speaker may be used for general purposes, such as multimedia playback or recording playback. The receiver may be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part thereof.
[0027] The display module (160) can visually provide information to an external (e.g., user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling said device. According to one embodiment, the display module (160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of the force generated by said touch.
[0028] The audio module (170) can convert sound into an electrical signal or, conversely, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150) or output sound through the sound output module (155) or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphones) that is directly or wirelessly connected to the electronic device (101).
[0029] The sensor module (176) can detect the operating state of the electronic device (101) (e.g., power or temperature) or the external environmental state (e.g., user state) and generate an electrical signal or data value corresponding to the detected state. According to one embodiment, the sensor module (176) may include, for example, a gesture sensor, a gyroscope sensor, a barometric pressure sensor, a magnetic sensor, an accelerometer sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biosensor, a temperature sensor, a humidity sensor, or an illuminance sensor.
[0030] The interface (177) may support one or more specified protocols that can be used for the electronic device (101) to be connected directly or wirelessly to an external electronic device (e.g., electronic device (102)). According to one embodiment, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.
[0031] The connection terminal (178) may include a connector through which the electronic device (101) can be physically connected to an external electronic device (e.g., electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).
[0032] The haptic module (179) can convert an electrical signal into a mechanical stimulus (e.g., vibration or movement) or an electrical stimulus that can be perceived by the user through tactile or kinesthetic senses. According to one embodiment, the haptic module (179) may include, for example, a motor, a piezoelectric element, or an electric stimulation device.
[0033] The camera module (180) can capture still images and video. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.
[0034] The power management module (188) can manage power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented, for example, as at least part of a power management integrated circuit (PMIC).
[0035] The battery (189) can supply power to at least one component of the electronic device (101). According to one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.
[0036] The communication module (190) can support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between an electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may include one or more communication processors that operate independently of the processor (120) (e.g., application processor) and support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (190) may include a wireless communication module (192) (e.g., cellular communication module, short-range wireless communication module, or GNSS (global navigation satellite system) communication module) or a wired communication module (194) (e.g., LAN (local area network) communication module, or power line communication module). The corresponding communication module among these communication modules can communicate with an external electronic device through a first network (198) (e.g., a short-range communication network such as Bluetooth, WiFi (wireless fidelity) direct, or IrDA (infrared data association)) or a second network (199) (e.g., a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules may be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can identify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) using subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module (196).
[0037] The wireless communication module (192) can support 5G networks and next-generation communication technologies following 4G networks, for example, new radio access technology. NR access technology can support high-speed transmission of high-capacity data (enhanced mobile broadband (eMBB)), minimization of terminal power and connection of multiple terminals (massive machine type communications (mMTC)), or high reliability and low latency (ultra-reliable and low-latency communications (URLLC)). The wireless communication module (192) can support a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate, for example. The wireless communication module (192) can support various technologies for securing performance in the high-frequency band, such as beamforming, massive MIMO (multiple-input and multiple-output), full-dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large-scale antenna. The wireless communication module (192) can support various requirements specified by the electronic device (101), an external electronic device (e.g., electronic device (104)), or a network system (e.g., a second network (199)). According to one embodiment, the wireless communication module (192) may support a Peak data rate (e.g., 20 Gbps or more) for eMBB realization, loss coverage (e.g., 164 dB or less) for mMTC realization, or U-plane latency (e.g., downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) for URLLC realization.
[0038] An antenna module (197) can transmit a signal or power to or from an external source (e.g., an external electronic device). According to one embodiment, the antenna module may include an antenna comprising a radiator made of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). According to one embodiment, the antenna module (197) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as a first network (198) or a second network (199), may be selected from the plurality of antennas, for example, by a communication module (190). The signal or power may be transmitted or received between the communication module (190) and an external electronic device through the selected at least one antenna. According to one embodiment, in addition to the radiator, other components (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as part of the antenna module (197).
[0039] According to one embodiment, the antenna module (197) may form a mmWave antenna module. According to one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent to a first surface (e.g., bottom surface) of the printed circuit board and capable of supporting a specified high frequency band (e.g., mmWave band), and a plurality of antennas (e.g., array antennas) disposed on or adjacent to a second surface (e.g., top surface or side surface) of the printed circuit board and capable of transmitting or receiving a signal of the specified high frequency band.
[0040] At least some of the above components can be connected to each other via a communication method between peripheral devices (e.g., bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)) and exchange signals (e.g., commands or data) with each other.
[0041] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) through a server (108) connected to a second network (199). Each of the external electronic devices (102 or 104) may be the same or a different type of device as the electronic device (101). According to one embodiment, all or part of the operations performed on the electronic device (101) may be performed on one or more of the external electronic devices (102, 104 or 108). For example, if the electronic device (101) needs to perform a function or service automatically or in response to a request from a user or another device, the electronic device (101) may request one or more external electronic devices to perform at least part of the function or service instead of performing the function or service itself or additionally. One or more external electronic devices that receive the above request may execute at least part of the requested function or service, or additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may provide the result as is or additionally processed as at least part of the response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device (101) may provide ultra-low latency services using, for example, distributed computing or mobile edge computing. In one embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server using machine learning and / or neural networks. According to one embodiment, the external electronic device (104) or the server (108) may be included within the second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.
[0042] FIG. 2 is a block diagram (200) illustrating a camera module (280) (e.g., camera module (180) of FIG. 1) according to one embodiment of the present disclosure. Referring to FIG. 2, the camera module (280) may include a lens assembly (210), a flash (220), an image sensor (230), an image stabilizer (240), a memory (250) (e.g., a buffer memory), or an image signal processor (260). In one embodiment, the lens assembly (210) may include an image sensor (230). The lens assembly (210) may collect light emitted from a subject that is the target of image capture. The lens assembly (210) may include one or more lenses. According to one embodiment, the camera module (280) may include a plurality of lens assemblies (210). In this case, the camera module (280) may form, for example, a dual camera, a 360-degree camera, or a spherical camera. Some of the plurality of lens assemblies (210) may have the same lens properties (e.g., angle of view, focal length, autofocus, F-number, or optical zoom), or at least one lens assembly may have one or more lens properties different from the lens properties of the other lens assemblies. The lens assembly (210) may include, for example, a wide-angle lens or a telephoto lens.
[0043] A flash (220) may emit light used to enhance light emitted or reflected from a subject. According to one embodiment, the flash (220) may include one or more light-emitting diodes (e.g., RGB (red-green-blue) LED, white LED, infrared LED, or ultraviolet LED), or a xenon lamp. An image sensor (230) may acquire an image corresponding to the subject by converting light emitted or reflected from the subject and transmitted through a lens assembly (210) into an electrical signal. According to one embodiment, the image sensor (230) may include, for example, one image sensor selected from image sensors with different properties such as an RGB sensor, a BW (black and white) sensor, an IR sensor, or a UV sensor, a plurality of image sensors having the same properties, or a plurality of image sensors having different properties. Each image sensor included in the image sensor (230) may be implemented using, for example, a CCD (charged coupled device) sensor or a CMOS (complementary metal oxide semiconductor) sensor.
[0044] The image stabilizer (240) may move at least one lens or image sensor (230) included in the lens assembly (210) in a specific direction or control the operational characteristics of the image sensor (230) (e.g., adjusting read-out timing, etc.) in response to the movement of the camera module (280) or the electronic device (201) including it. This allows for compensating for at least some of the negative effects caused by the movement on the image being captured. According to one embodiment, the image stabilizer (240) may detect such movement of the camera module (280) or the electronic device (e.g., the electronic device (101) of FIG. 1) using a gyroscope sensor (not shown) or an accelerometer sensor (not shown) placed inside or outside the camera module (280). According to one embodiment, the image stabilizer (240) may be implemented, for example, as an optical image stabilizer. The memory (250) may temporarily store at least a portion of an image acquired through the image sensor (230) for the next image processing operation. For example, if image acquisition by the shutter is delayed or multiple images are acquired at high speed, the acquired original image (e.g., a Bayer-patterned image or a high-resolution image) is stored in the memory (250), and a corresponding copy image (e.g., a low-resolution image) can be previewed through the display module (160) of FIG. 1. Subsequently, when a specified condition is satisfied (e.g., user input or system command), at least a portion of the original image stored in the memory (250) may be acquired and processed by, for example, an image signal processor (260). According to one embodiment, the memory (250) may be configured as at least a portion of the memory (e.g., the memory (130) of FIG. 1) or as a separate memory that operates independently thereof.
[0045] The image signal processor (260) can perform one or more image processing operations on an image obtained through the image sensor (230) or an image stored in memory (250). The above one or more image processing methods may include, for example, depth map generation, 3D modeling, panorama generation, feature point extraction, image synthesis, or image compensation (e.g., noise reduction, resolution adjustment, brightness adjustment, blurring, sharpening, or softing). Additionally or generally, the image signal processor (260) may perform control (e.g., exposure time control, or readout timing control, etc.) over at least one of the components included in the camera module (280) (e.g., image sensor (230)). The image processed by the image signal processor (260) may be stored back in memory (250) for further processing or provided to an external component of the camera module (280) (e.g., memory (130) of FIG. 1, display module (160), electronic device (102), electronic device (104), or server (108)). According to one embodiment, the image signal processor (260) may be a processor (e.g., of FIG. 1 It may be configured as at least part of the processor (120) or as a separate processor that operates independently of the processor (120). If the image signal processor (260) is configured as a separate processor from the processor (120), at least one image processed by the image signal processor (260) may be displayed through the display module (160) as is or after additional image processing by the processor (120).
[0046] According to one embodiment, an electronic device (e.g., the electronic device (101) of FIG. 1) may include a plurality of camera modules (280) each having different attributes or functions. In this case, for example, at least one of the plurality of camera modules (280) may be a wide-angle camera and at least another may be a telephoto camera. Similarly, at least one of the plurality of camera modules (280) may be a front camera and at least another may be a rear camera.
[0048] The electronic device according to the embodiment(s) of the present disclosure may be of various forms. The electronic device may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a consumer electronics device. The electronic device according to the embodiment of the present document is not limited to the devices described above.
[0049] The embodiment(s) and the terms used in this document are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of said embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of said items unless the relevant context clearly indicates otherwise. In this document, phrases such as “A or B,” “at least one of A and B,” “at least one of A or B,” “A, B or C,” “at least one of A, B and C,” and “at least one of A, B, or C” each may include any one of the items listed together in the corresponding phrase, or all possible combinations thereof. Terms such as “first,” “second,” or “first” or “second” may be used simply to distinguish said components from other said components and do not limit said components in any other aspect (e.g., importance or order). Where any (e.g., 1st) component is referred to as “coupled” or “connected” to another (e.g., 2nd) component, with or without the terms “functionally” or “communicationly,” it means that said any component may be connected to said other component directly (e.g., via a wire), wirelessly, or through a third component.
[0050] The term “module” as used in the various embodiments 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, for example. A module may be a component formed integrally, or a minimum unit of said component or a part thereof that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).
[0051] Various embodiments of the present document may be implemented as software (e.g., program (140)) comprising one or more instructions stored in a storage medium (e.g., internal memory (136) or external memory (138)) readable by a machine (e.g., electronic device (101)). For example, a processor (e.g., processor (120)) of the machine (e.g., electronic device (101)) may call at least one of the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code that can be executed by an interpreter. The storage medium readable by the machine may be provided in the form of a non-transitory storage medium. Here, 'non-temporary' merely means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and this term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily.
[0052] According to one embodiment, the method according to various embodiments of the present disclosure may be provided by being included in a computer program product. The computer program product may be traded between a seller and a buyer as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., compact disc read-only memory (CD-ROM)) or an application store (e.g., Play Store). TM It can be distributed online (e.g., downloaded or uploaded) through ) or directly between two user devices (e.g., smartphones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily created on a device-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.
[0053] According to the embodiments, each component (e.g., module or program) of the components described above may include a singular or multiple entities, and some of the multiple entities may be separated and placed in other components. According to the embodiments, one or more of the components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Generally or additionally, multiple components (e.g., module or program) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the multiple components in the same or similar manner as those performed by the corresponding component among the multiple components prior to the integration. According to the embodiments, operations performed by the module, program, or other components may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.
[0055] In the following detailed description, the length direction, width direction, and / or thickness direction of the electronic device may be referred to, and the length direction may be defined as the 'Y-axis direction', the width direction as the 'X-axis direction', and / or the thickness direction as the 'Z-axis direction'. In one embodiment, regarding the direction in which the component is oriented, 'negative / positive (- / +)' may be referred to together with the Cartesian coordinate system illustrated in the drawings. For example, the front of the electronic device and / or housing may be defined as the 'face facing the +Z direction', and the rear may be defined as the 'face facing the -Z direction'. In one embodiment, the side of the electronic device and / or housing may include an area facing the +X direction, an area facing the +Y direction, an area facing the -X direction, and / or an area facing the -Y direction. In one embodiment, the 'X-axis direction' may mean both the '-X direction' and the '+X direction'. It should be noted that this is based on the Cartesian coordinate system described in the drawings for the sake of brevity of description, and that the description of these directions or components does not limit the embodiment(s) of the present disclosure. For example, depending on the design specifications of the electronic device or the user's usage habits, the orthogonal coordinate system may be defined differently from the present disclosure.
[0056] FIG. 3 is a perspective view showing the front of an electronic device (300) (e.g., the electronic device (101) of FIG. 1) according to one embodiment of the present disclosure. FIG. 4 is a perspective view showing the rear of the electronic device (300) shown in FIG. 3 according to one embodiment of the present disclosure.
[0057] Referring to FIGS. 3 and 4, an electronic device (300) according to one embodiment may include a housing (310) comprising a first surface (or front) (310A), a second surface (or rear) (310B), and a side (310C) surrounding the space between the first surface (310A) and the second surface (310B). In one embodiment (not shown), the housing (310) may refer to a structure forming some of the first surface (310A) of FIG. 2, the second surface (310B) of FIG. 3, and the side (310C). According to one embodiment, the first surface (310A) may be formed by a front plate (302) (e.g., a glass plate or a polymer plate having various coating layers) in which at least a portion is substantially transparent. The second surface (310B) may be formed by a rear plate (311) that is substantially opaque. The rear plate (311) may be formed, for example, by coated or colored glass, ceramic, polymer, metal (e.g., aluminum, stainless steel (STS), or magnesium), or a combination of at least two of the above materials. The side (310C) may be formed by a side structure (or "side bezel structure") (318) comprising metal and / or polymer, which is combined with the front plate (302) and the rear plate (311). In one embodiment, the rear plate (311) and the side structure (318) may be formed integrally and may comprise the same material (e.g., a metallic material such as aluminum).
[0058] Although not illustrated, the front plate (302) may include region(s) that are curved and seamlessly extended toward the rear plate (311) at least a portion of the edge. In one embodiment, the front plate (302) (or the rear plate (311)) may include only one of the regions that are curved and extended toward the rear plate (311) (or the front plate (302)) at one edge of the first surface (310A). According to the embodiment, the front plate (302) or the rear plate (311) may be substantially flat, in which case it may not include the curved and extended region. If it includes the curved and extended region, the thickness of the electronic device (300) in the portion containing the curved and extended region may be smaller than the thickness of the other portion.
[0059] According to one embodiment, the electronic device (300) may include at least one of a display (301), an audio module (303, 307, 314), a sensor module (304, 319), a camera module (305, 312, 313), a key input device (317), a light-emitting element (306), and a connector hole (308, 309). In one embodiment, the electronic device (300) may omit at least one of the components (e.g., a key input device (317), or a light-emitting element (306)) or additionally include other components.
[0060] The display (301) may be exposed, for example, through a significant portion of the front plate (302). In one embodiment, at least a portion of the display (301) may be exposed through the front plate (302) forming the first surface (310A) or through a portion of the side (310C). In one embodiment, the corners of the display (301) may be formed to be generally the same as the adjacent outer shape of the front plate (302). In one embodiment (not shown), the gap between the outer edge of the display (301) and the outer edge of the front plate (302) may be formed to be generally the same in order to expand the visually exposed area of the display (301).
[0061] In one embodiment (not shown), a recess or opening is formed in a part of the screen display area of the display (301), and at least one of an audio module (314), a sensor module (304), a camera module (305), and a light-emitting element (306) may be included that are aligned with the recess or the opening. In one embodiment (not shown), at least one of an audio module (314), a sensor module (304), a camera module (305), a fingerprint sensor (not shown), and a light-emitting element (306) may be included on the back surface of the screen display area of the display (301). In one embodiment (not shown), the display (301) may be combined with 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 (304, 319) and / or at least a portion of the key input device (317) may be placed in areas (or spaces) that overlap with the display (301).
[0062] According to one embodiment, the audio module (303, 307, 314) may include a microphone hole (303) and a speaker hole (307, 314). A microphone for acquiring external sound may be placed inside the microphone hole (303), and in one embodiment, a plurality of microphones may be placed to detect the direction of sound. The speaker hole (307, 314) may include an external speaker hole (307) and a receiver hole (314) for calls. In one embodiment, the speaker hole (307, 314) and the microphone hole (303) may be implemented as a single hole, or a speaker may be included without the speaker hole (307, 314) (e.g., a piezo speaker).
[0063] According to one embodiment, the sensor module (304, 319) may generate an electrical signal or data value corresponding to an internal operating state of the electronic device (300) or an external environmental state. The sensor module (304, 319) may include, for example, a first sensor module (304) (e.g., proximity sensor) and / or a second sensor module (not shown) (e.g., fingerprint sensor) disposed on a first surface (310A) of the housing (310), and / or a third sensor module (319) and / or a fourth sensor module (e.g., fingerprint sensor) disposed on a second surface (310B) of the housing (310). The fingerprint sensor may be disposed on the second surface (310B) or side (310C) as well as on the first surface (310A) (e.g., display (301)) of the housing (310). The electronic device (300) may further include at least one of, for example, a gesture sensor, a gyroscope sensor, a barometric pressure sensor, a magnetic sensor, an accelerometer sensor, a grip sensor, a color sensor, an IR (infrared) sensor, a biosensor, a temperature sensor, a humidity sensor, or an illuminance sensor.
[0064] According to one embodiment, the camera module (305, 312, 313) may include a first camera device (305) disposed on a first surface (310A) of the electronic device (300), a second camera device (312) disposed on a second surface (310B), and / or a flash (313). The camera devices (305, 312) may include one or more lenses, an image sensor, and / or an image signal processor. In one embodiment, the image signal processor may be implemented as part of the processor (120) of FIG. 1. In one embodiment, the image signal processor may be implemented in a component disposed separately from the processor (120) of FIG. 1. For example, the electronic device (300) may include at least one processor, and when it includes multiple processors, the image signal processor may be mounted in a component separate from the other processors. The flash (313) may include, for example, a light-emitting diode or a xenon lamp. In one embodiment, three or more lenses (infrared camera, wide-angle and telephoto lenses) and image sensors may be placed on one side of the electronic device (300). In one embodiment, the flash (313) may emit infrared light, and the infrared light emitted by the flash (313) and reflected by an object may be received through the third sensor module (319). The electronic device (300) or the processor of the electronic device (300) may detect depth information of the object based on the time when the infrared light is received by the third sensor module (319).
[0065] According to one embodiment, a key input device (317) may be disposed on a side (310C) of the housing (310). In one embodiment, the electronic device (300) may not include some or all of the aforementioned key input devices (317), and the key input devices (317) that are not included may be implemented in other forms, such as soft keys, on the display (301). In one embodiment, the key input device (317) may include a sensor module disposed on a second side (310B) of the housing (310).
[0066] According to one embodiment, the light-emitting element (306) may be disposed, for example, on a first surface (310A) of a housing (310). The light-emitting element (306) may, for example, provide state information of an electronic device (300) in the form of light. In one embodiment, the light-emitting element (306) may, for example, provide a light source that is coupled with the operation of a camera module (305). The light-emitting element (306) may include, for example, an LED, an IR LED, and a xenon lamp.
[0067] According to one embodiment, the connector holes (308, 309) may include a first connector hole (308) capable of receiving a connector (e.g., a USB connector) for transmitting and receiving power and / or data with an external electronic device, and a second connector hole (e.g., an earphone jack) (309) capable of receiving a connector for transmitting and receiving audio signals with an external electronic device.
[0069] In examining the following embodiments, the electronic device (101, 102, 104, 300) and / or camera module (180, 280, 305, 312, 313) of the above-described embodiment may be referenced. The camera module (400, 500, 600, 700, 800, 900) of the embodiments described later may implement at least one part or all of the above-described camera module (180, 280, 305, 312, 313).
[0070] FIG. 5 is a perspective view showing a camera module (400) and / or a lens assembly (LA) in partial cutaway according to one embodiment of the present disclosure. FIG. 6 is a drawing for explaining the arrangement of an optical guide frame (OC) in a camera module (400) and / or a lens assembly (LA) according to one embodiment of the present disclosure. FIG. 7 is a drawing for explaining the arrangement of an optical guide frame (OC) in a camera module (400) and / or a lens assembly (LA) according to one embodiment of the present disclosure.
[0071] Referring to FIGS. 5 through 7, the camera module (400) and / or lens assembly (LA) may include a plurality (e.g., at least 5) of lenses (L1, L2, L3, L4, L5) and a light guide frame (OC). The camera module (400) may receive light focused or guided by the lens assembly (LA) by, for example, including an image sensor (I). The camera module (400) and / or an electronic device including the same (e.g., the electronic device (101, 102, 104, 300) of FIGS. 1 through 4) may acquire an image of a subject based on the light received by the image sensor (I). In one embodiment, at least one optical filter (e.g., an optical component indicated by 'F' in FIG. 8, e.g., an infrared blocking filter) may be disposed between the lens furthest from the image sensor (I) among the plurality of lenses (L1, L2, L3, L4, L5) (e.g., the first lens (L1)) and the image sensor (I). The at least one optical filter may transmit light of a specified wavelength band and suppress (or substantially block) the transmission of light of other wavelength bands. In one embodiment, the camera module (400) may include one optical filter disposed between the image sensor (I) and the nth lens (wherein 'n' is a natural number greater than or equal to 2, and in the embodiment of FIG. 5, the fifth lens (L5)) closest to the image sensor (I) among the plurality of lenses (L1, L2, L3, L4, L5).
[0072] According to one embodiment, the lens assembly (LA) may include at least five lenses (L1, L2, L3, L4, L5) sequentially aligned along the optical axis (O). In one embodiment, the camera module (400) and / or the lens assembly (LA) may include a barrel (BS). The barrel (BS) may be, for example, a structure for arranging or aligning the lenses (L1, L2, L3, L4, L5). In one embodiment, at least one mechanical part (e.g., a spacer (MC)) may be placed inside the barrel (BS) to align the positions of the lenses (L1, L2, L3, L4, L5) and prevent two adjacent lenses (L1, L2, L3, L4, L5) from coming into direct contact.
[0073] In the illustrated embodiment, the phrases “sequentially aligned from the side of the object (e.g., object (S) in FIG. 8) toward the side of the image sensor (I)” or “aligned along the optical axis (O)” may refer to the lenses (L1, L2, L3, L4, L5) being sequentially arranged from the side of the object (S) 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 toward the image sensor (I) from the side of the object (S). In one embodiment, the first lens (L1) may be referred to as the "first lens on the object (S) side" or the "lens positioned furthest from the image sensor (I)," and the fifth lens (L5) may be referred to as the "first lens on the image sensor (I) side" or the "lens positioned closest to the image sensor (I)." In one embodiment, the lens assembly (LA) may include six or more lenses, and the lens closest to the image sensor (I) may be referred to as the "n-th lens." Here, "n" may refer to the number of lenses included in the lens assembly (LA), and in the embodiment of FIG. 5, "n" may be 5, and in the embodiment of FIG. 8, "n" may be 8.
[0074] According to one embodiment, the image sensor (I) may include an active area that is substantially rectangular (e.g., the imaging plane (img) of FIG. 8), in which case the edge of the lens with the largest outer diameter among the plurality of lenses (L1, L2, L3, L4, L5), or the edge of the nth lens closest to the image sensor (I) among the plurality of lenses, may be understood to include four sides. For example, by having a non-circular shape for the lens with the largest outer diameter, or for a portion of the edge of the nth lens closest to the image sensor (I) among the plurality of lenses, the lens assembly and / or camera module may be miniaturized while minimizing the impact on optical performance.
[0075] According to one embodiment, the ‘four sides included in the edge of the lens’ refer to the shape or arrangement state when viewed along the optical axis (O) and may be substantially straight, and may be understood as planes (SF, LF)(s) arranged substantially parallel to the optical axis (O) when viewed from a direction inclined to the optical axis (O) as in FIG. 6 or 7. However, the embodiments of the present disclosure are not limited thereto, and the ‘four sides included in the edge of the lens’ may be implemented by a curve or a curved surface, and a protrusion or recess for placement or fixation inside the lens barrel structure (BS) may be provided on the planes (SF, LF)(s) or the curved surface.
[0076] According to one embodiment, with reference to FIG. 7, the first length indicated as 'Ds' may exemplify the length of the fifth lens (L5) measured parallel to the short side of a rectangular image sensor (e.g., the imaging plane (img) in FIG. 8). In one embodiment, the first length indicated as 'Ds' may be understood as the distance between two opposing planes (e.g., the second plane (LF) in FIG. 7) among the planes of the edge of the fifth lens (L5) along a direction parallel to the long side of the imaging plane (img) in FIG. 8. In one embodiment, when measuring the length of the fifth lens (L5) across the point where the optical axis (O) intersects, the first length (Ds) may be the shortest length of the fifth lens (L5). In one embodiment, the first length (Ds) may be referred to as the short side of the lens including the non-circular edge, or the short side of the light guide frame (OC) (e.g., the light guide area (TA)). In one embodiment, 'Ds' may be referred to as the short diameter of the lens including the non-circular edge. In one embodiment, referring to FIG. 7, the second length indicated by 'Dl' may exemplify the length of the fifth lens (L5) measured parallel to the long side of the rectangular image sensor (e.g., the imaging plane (img) in FIG. 8). In one embodiment, the second length indicated by 'Dl' may be understood as the distance between two opposing planes (e.g., the first plane (SF) in FIG. 7) among the planes of the edge of the fifth lens (L5) along a direction parallel to the short side of the imaging plane (img) in FIG. 8. In one embodiment, the second length (Dl) may be the length of the fifth lens (L5) measured in a direction perpendicular to the first length (Ds) while crossing the point where the optical axis (O) intersects. In one embodiment, the second length (Dl) is a length measured parallel to the long side of the image sensor (I) and may be greater than the first length (Ds). In one embodiment, the second length (Dl) may be referred to as the long side of the lens including a non-circular edge, or the long side of the light guide frame (OC) (e.g., light guide region (TA)).In one embodiment, 'Dl' may be referred to as the major diameter of a lens including non-circular edges. For example, when the image sensor (I) or its imaging plane (img) is substantially rectangular, the planes (SF, LF) of the edges of the fifth lens (L5) may be substantially parallel to the optical axis (O) and substantially perpendicular to each other.
[0077] According to one embodiment, with reference to FIG. 7, the length indicated as 'Dm' may exemplify a third length of a lens (e.g., the fifth lens (L5)) measured parallel to the diagonal of a rectangular image sensor (I) (e.g., the imaging plane (img) in FIG. 8). In one embodiment, when measuring the length of the fifth lens (L5) across the point where the optical axis (O) intersects, the third length (Dm) may be the maximum length of the fifth lens (L5). In one embodiment, the third length (Dm) may be referred to as the maximum diameter of the lens including the non-circular edge, or as the diagonal of the light guide frame (OC) (e.g., the light guide region (TA)). In one embodiment, if the lens including the non-circular edge is rectangular when viewed along the optical axis (O), 'Dm' may refer to the diagonal length of the rectangle. In the embodiments described below, the first length (Ds) may describe the length of the nth lens measured across a point that intersects the optical axis (O) while parallel to the short side of the image sensor (I), for example, and the second length (Dl) may describe the length of the nth lens measured across a point that intersects the optical axis (O) while parallel to the long side of the image sensor (I). In one embodiment, when the first length (Ds) is defined as being aligned parallel to the short side of the image sensor (I) and the second length (Dl) is defined as being aligned parallel to the long side of the image sensor (I), the third length (Dm) may describe the length of the nth lens measured across a point that intersects the optical axis (O) while parallel to the diagonal of the image sensor (I). In one embodiment, the n-th lens may refer to the lens closest to the image sensor (I) among a plurality of lenses (L1, L2, L3, L4, L5) (e.g., the fifth lens (L5)). As mentioned above, in describing the embodiment(s) of the present disclosure, the 'length of the lens' may substantially be measured along a direction perpendicular to the optical axis (O) from a point intersecting the optical axis (O).
[0078] According to one embodiment, a lens having a non-circular edge, e.g., the fifth lens (L5) of FIG. 7 (or the eighth lens (L8) of FIG. 8), is positioned closest to the image sensor (I) among a plurality of lenses (L1, L2, L3, L4, L5) and can be understood as having a shape in which a portion of the edge of the lens having a diameter of a third length (Dm) is removed. For example, the non-circular fifth lens (L5) can be manufactured by processing or partially removing the edge of the lens having a diameter indicated by the third length ('Dm') so that a first plane (SF) (e.g., one of the D-cut planes) and / or a second plane (LF) (e.g., another of the D-cut planes) are realized. In one embodiment, the first plane (SF) and / or the second plane (LF) can be understood as a portion of a curved surface having a diameter that is significantly larger (e.g., approximately three times or more) than the third length (Dm). For example, the surface designated as 'SF' and / or 'LF' is referred to as a 'plane', but the embodiments of the present disclosure are not limited thereto, and the surface designated as 'SF' and / or 'LF' may be implemented as a curved surface having a diameter greater than the diameter designated as the third length (Dm).
[0079] According to one embodiment, the light guide frame (OC) may define a light guide region (TA) (or transmission region) that transmits light incident from the outside. For example, light incident on the light guide region (TA) among light focused or guided by lens(s) (e.g., first to fourth lenses (L1, L2, L3, L4)) positioned in front of the light guide frame (OC) may proceed to the rear of the light guide frame (OC). The phrase “light proceeds to the rear of the light guide frame (OC)” may refer, for example, to light incident on an image sensor (I). In one embodiment, the light guide region may be a rectangular shape having a short side corresponding to a first length (Ds) (e.g., substantially parallel) and a long side corresponding to a second length (Dl) and / or the longest side of the image sensor (I) (e.g., substantially parallel).
[0080] According to one embodiment, in the illustrated embodiment, the light guide frame (OC) may be understood to be positioned to face directly the nth lens (e.g., the object side of the nth lens) positioned closest to the image sensor (I). In one embodiment, each of the plurality of lenses (L1, L2, L3, L4, L5) may be substantially circular, but at least one lens may resemble a polygonal shape. For example, the lens with the largest outer diameter among the plurality of lenses (L1, L2, L3, L4, L5), or the nth lens closest to the image sensor (I) among the plurality of lenses (L1, L2, L3, L4, L5) (e.g., the 5th lens (L5) in FIG. 5) may correspond to the shape of the image sensor (I).
[0081] According to one embodiment, in the illustrated embodiment, the nth lens (e.g., the fifth lens (L5)) closest to the image sensor (I) among the plurality of lenses (L1, L2, L3, L4, L5) may have a polygonal shape corresponding to the shape of the image sensor (I). In one embodiment, the light guiding region (TA) may be a polygon (e.g., a rectangle) corresponding to the shape of the image sensor (I) (e.g., the imaging plane (img)) or the fifth lens (L5). In one embodiment, the light guiding region (TA) may have a rectangular shape including a short side corresponding to a first length (Ds) and a long side corresponding to a second length (Dl). In one embodiment, the lens assembly (LA) may use a light guiding frame (OC) to guide the focused light through a designated path to the image sensor (I) and block at least a portion of the light incident on the edge of the fifth lens (L5) away from the designated path.
[0082] According to one embodiment, the camera module (400) and / or lens assembly (LA) may satisfy the following [Condition 1] regarding the first length (Ds), the second length (Dl), and the third length (Dm).
[0083] [Condition 1]
[0084]
[0085] [Condition 1] can be understood as illustrating, for example, that at least a portion of the edge of the nth lens (e.g., the fifth lens (L5)) closest to the image sensor (I) among a plurality of lenses (L1, L2, L3, L4, L5) is processed into a flat shape. In one embodiment, when the first length (Ds) and the second length (Dl) are the same, the first plane (SF) and the second plane (LF) of FIG. 7 may have substantially the same shape and / or the same size.
[0086] According to one embodiment, the camera module (400) and / or lens assembly (LA) may have a field of view of approximately 70 degrees or more and approximately 95 degrees or less. In one embodiment, the camera module (400) and / or lens assembly (LA) may have a field of view of approximately 75 degrees or more and approximately 90 degrees or less. In one embodiment, when the camera module (400) and / or lens assembly (LA) has a field of view of approximately 70 degrees or more and approximately 95 degrees or less, the nth lens closest to the image sensor (I) among the plurality of lenses (L1, L2, L3, L4, L5) may be a significantly larger lens than the remaining lenses. For example, when the camera module (400) and / or lens assembly (LA) has a field of view of approximately 70 degrees or more and approximately 95 degrees or less and satisfies [Condition 1], the camera module (400) and / or lens assembly (LA) can be miniaturized by processing a portion of the edge of the n-th lens into a D-cut plane.
[0087] According to one embodiment, the n-th lens closest to the image sensor (I) (e.g., the fifth lens (L5) of FIG. 5 or the eighth lens (L8) of FIG. 8) may include an inflection point (e.g., an inflection point (IP) of FIG. 8)(s) on at least the sensor side (e.g., the surface indicated by 'S16' of FIG. 8) and the sensor side (e.g., the surface indicated by 'S17' of FIG. 8). When the n-th lens includes an inflection point, it may be useful for suppressing the increase in the angle of light rays incident on the image sensor (I) and for correcting various aberrations or peripheral curvature. In one embodiment, by including the inflection point (IP) in the n-th lens, it may be useful for miniaturizing the lens assembly (LA) while providing optical performance suitable for a large, high-resolution image sensor.
[0088] According to one embodiment, when the n-th lens includes an inflection point (IP), the distance from the point where the optical axis (O) intersects on the sensor side of the n-th lens to the inflection point (IP) may be less than half of the first length (Ds). Here, the 'distance to the inflection point (IP)' may be a distance measured from the optical axis (O) and measured along a direction perpendicular to the optical axis (O). In one embodiment, the 'distance from the point where the optical axis (O) intersects to the inflection point (IP)' may be the distance between the first point where the point where the optical axis (O) intersects and the inflection point (IP) are projected onto a plane substantially parallel to the imaging plane (img), and the second point where the inflection point (IP) is projected. For example, the first length (Ds) may be greater than twice the distance from the point where the optical axis (O) intersects on the sensor side of the n-th lens to the inflection point (IP). In one embodiment, the statement “the first length (Ds) is greater than twice the distance from the point where the optical axis (O) intersects on the sensor side of the n-th lens to the inflection point (IP)” can be understood as the inflection points (IP) on the sensor side of the n-th lens being arranged to form a closed curve (e.g., substantially a circle), even if the n-th lens has a shape that includes a first plane (SF) or a second plane (LF) by removing a portion of the edge, for example.
[0089] According to one embodiment, the camera module (400) and / or lens assembly (LA) may satisfy the following [Equation 2] regarding the effective diameter 'LD1' of the first lens (L1) and the effective diameter 'LDn' of the nth lens (e.g., the fifth lens (L5) of FIG. 5 or the eighth lens (L8) of FIG. 8).
[0090] [Condition 2]
[0091]
[0092] According to one embodiment, when the camera module (400) and / or lens assembly (LA) satisfies [Condition 2], it can be miniaturized while acquiring a good subject image even in a low-light environment. For example, when the calculated value of [Condition 2] is less than 2, the image quality in a low-light environment may be degraded, and when the calculated value of [Condition 2] is greater than 2.8, it may be difficult to form the first plane (SF) or the second plane (LF).
[0093] According to one embodiment, the camera module (400) and / or lens assembly (LA) may satisfy the following [Equation 3] regarding the focal length 'EFL (effective focal length)' of the lens assembly (LA), the F-number 'Fno' of the lens assembly (LA), the first length (Ds), and / or the diagonal length 'IMH' of the image sensor (I) (e.g., the image plane (img) of FIG. 8).
[0094] [Condition 3]
[0095]
[0096] For example, the n-th lens closest to the image sensor (I) may include a D-cut edge (e.g., a first plane (SF) or a second plane (LF)), and the short side or short diameter of the n-th lens (e.g., a first length (Ds)) may be larger than the size of the entrance pupil of the lens assembly (LA) and smaller than the diagonal length of the image sensor (I). In one embodiment, the diagonal length 'IMH' of the image sensor (I) (e.g., the imaging plane (img) in FIG. 8) may be twice the maximum image height of the image sensor (I).
[0097] According to one embodiment, the camera module (400) and / or lens assembly (LA) may satisfy the following [Condition 4] regarding the focal length 'EFL' of the lens assembly (LA) and the diagonal length 'IMH' of the image sensor (I) (e.g., the image plane (img) of FIG. 8).
[0098] [Condition 4]
[0099]
[0100] In one embodiment, when [Condition 4] is satisfied, at least one D-cut processing surface (e.g., a first plane (SF) or a second plane (LF)) is implemented on the edge of the n-th lens so that the camera module (400) and / or lens assembly (LA) can be miniaturized while suppressing the curvature of the field surface. In one embodiment, by suppressing the curvature of the field surface, the camera module (400) and / or lens assembly (LA) can be miniaturized while obtaining an image with good peripheral image quality.
[0101] In the embodiments described below, configurations that can be easily understood through the description above may be omitted from the drawings or detailed descriptions may be omitted. For example, even if not directly mentioned in the embodiments described below, at least some of the configurations of the embodiments described above (e.g., light guide frame (OC)) may be applied to the embodiments described below selectively or substantially identically. In the detailed description of the embodiments(s) of the present disclosure, the terms "concave" or "convex" regarding the object-side or sensor-side surfaces of the lenses (L1, L2, L3, L4, L5, L6, L7, L8) may refer to the shape of the lens surface at a point intersecting the optical axis (O) or in the paraxial region intersecting the optical axis (O). The shape referred to as "concave" may refer to the lens surface forming a curved shape in which the lens thickness decreases as it approaches the optical axis (O) in the paraxial region. The shape referred to as "convex" may refer to a lens surface that forms a curved shape in which the lens thickness increases as it approaches the optical axis (O) in the paraxial region. In one embodiment, when the object-side surface or the sensor-side surface includes an inflection point (IP), the negative / positive of the radius of curvature in the paraxial region and the peripheral region may be reversed. In this case, regarding the concaveness or convexity of the lens surface shape, a portion of the lens surface may be specified and referred to.
[0102] FIG. 8 is a drawing showing a camera module (500) (e.g., camera modules (180, 280, 305, 312, 313, 400) of FIG. 1 to 5) and / or a lens assembly (LA) (e.g., lens assembly (LA) of FIG. 5) according to one embodiment of the present disclosure, and is a drawing for explaining an arrangement in a plane parallel to the optical axis (O) and the short side of an image sensor (I). FIG. 9 is a graph showing spherical aberration in the arrangement of FIG. 8 according to one embodiment of the present disclosure. FIG. 10 is a graph showing astigmatism in the arrangement of FIG. 8 according to one embodiment of the present disclosure. FIG. 11 is a graph showing distortion rate in the arrangement of FIG. 8 according to one embodiment of the present disclosure.
[0103] FIG. 9 is a graph showing the spherical aberration of the camera module (500) and / or lens assembly (LA) of FIG. 8 according to one embodiment of the present disclosure, wherein the horizontal axis represents the coefficient of longitudinal spherical aberration and the vertical axis represents the distance from the optical axis normalized, and the change in longitudinal spherical aberration according to the wavelength of light is shown. Longitudinal spherical aberration is shown for light with wavelengths of, for example, 656.3000 (NM, nanometer), 587.6000 (NM), 546.1000 (NM), 486.1000 (NM), and 435.8000 (NM), respectively. FIG. 10 is a graph showing the astigmatism of a camera module (500) and / or a lens assembly (LA) according to one embodiment of the present disclosure, for light with a wavelength of 546.1000 (NM), where 'X' or 'S' is an example of a sagittal plane as a solid line and 'Y' or 'T' is an example of a tangential plane (or meridional plane) as a dotted line. FIG. 11 is a graph showing the distortion rate of a camera module (500) and / or a lens assembly (LA) according to one embodiment of the present disclosure, for light with a wavelength of 546.1000 (NM). The refractive index of the lens(s) mentioned in the embodiments described below may refer to the refractive index for light with a wavelength of approximately 587.6000 nm. In one embodiment, the aberration diagram or distortion rate graph of FIGS. 9 to 11 may exemplify values measured along a direction parallel to 'Ds' of FIG. 7 based on the intersection point of the optical axis (O) and the image sensor (I).
[0104] FIG. 8 may illustrate an arrangement of lenses (L1, L2, L3, L4, L5, L6, L7, L8) in a plane parallel to the optical axis (O) and the short side of the image sensor (I). The nth lens closest to the image sensor (I), for example, the 8th lens (L8) of FIG. 8, may be illustrated in a cross-section parallel to the first plane (SF) of FIG. 7. Referring to FIG. 8, the camera module (500) and / or lens assembly (LA) may include eight lenses (L1, L2, L3, L4, L5, L6, L7, L8) arranged sequentially toward the image sensor (I) along the optical axis (O). In one embodiment, the object side surface (S2) of the first lens (L1) positioned furthest from the image sensor (I) is convex, and the eighth lens (L8) positioned closest to the image sensor (I) may include an inflection point (IP)(s) at least on the sensor side surface (S17) among the object side surface (S16) and the sensor side surface (S17).
[0105] According to one embodiment, when the object-side surface (S2) of the first lens (L1) is convex, the size of the camera module (500) visible to the user from the appearance of the electronic device (e.g., the electronic device (101, 102, 104, 300) of FIGS. 1 to 4) can be reduced. In one embodiment, the eighth lens (L8) includes an inflection point (IP)(s) on at least the sensor-side surface (S17) among the object-side surface (S16) and the sensor-side surface (S17), thereby facilitating the stabilization of optical performance such as aberration correction, and includes a D-cut processing surface (e.g., the first plane (SF) or the second plane (LF) of FIG. 7), thereby facilitating the miniaturization of the camera module (500).
[0106] According to one embodiment, the camera module (500) and / or lens assembly (LA) may include an infrared blocking filter (F) disposed between an image sensor (I) (e.g., an imaging plane (img)) and an eighth lens (L8). The infrared blocking filter (F) may substantially block light of a wavelength (e.g., infrared) that is not visible to the user's naked eye but is detected by a photosensitive material or the image sensor (I). Depending on the specifications or use of the camera module (500) and / or lens assembly (LA), the infrared blocking filter (F) may be replaced with a filter that transmits light of a different wavelength band.
[0107] According to one embodiment, a processor (e.g., processor (120) of FIG. 1) or an image signal processor (e.g., image signal processor (260) of FIG. 2) can acquire an image of a subject (e.g., object (S)) by detecting light focused or guided by a lens assembly (LA) using an image sensor (I). In one embodiment, the processor (e.g., processor (120) of FIG. 1) can perform a focus adjustment operation and / or a focal length adjustment operation by moving at least one of the lenses (L1, L2, L3, L4, L5, L6, L7, L8) linearly along the optical axis (O) direction with respect to the image sensor (I). In one embodiment, the processor (e.g., processor (120) of FIG. 1) can perform a focus adjustment operation and / or a focal length adjustment operation by moving the image sensor (I) linearly along the optical axis (O) direction with respect to the lenses (L1, L2, L3, L4, L5, L6, L7, L8). In one embodiment, a processor (e.g., processor (120) of FIG. 1) may perform a hand-shake correction operation by moving at least one of the lenses (L1, L2, L3, L4, L5, L6, L7, L8) or the image sensor (I) horizontally in a plane perpendicular to the optical axis (O). In one embodiment, the processor may perform a focus adjustment and / or hand-shake correction operation by executing at least some of the instruction(s) stored in a memory (e.g., memory (130) of FIG. 1), and may cause an electronic device (e.g., electronic device (101, 102, 104, 200, 300) of FIG. 1 to 4) to receive or detect external light using the image sensor (I). For example, instruction(s) that cause an electronic device to receive at least a portion of light focused by an image sensor (I) and to acquire an image of an object (S) based on the received light may be stored in memory, and such instruction(s) may be executed by a processor(s).
[0108] In the embodiments described below, some of the reference numbers assigned to the lens surfaces in the drawings are not directly mentioned, but those skilled in the art will be able to easily understand the configuration of each lens (L1, L2, L3, L4, L5, L6, L7, L8) or lens surfaces based on the lens data presented in the [Tables] described below. For the sake of brevity in the drawings, some of the object-side surfaces (L1, L2, L3, L4, L5, L6, L7, L8) and sensor-side surfaces (L1, L2, L3, L4, L5, L6, L7, L8) and / or the reference numbers in the drawings for the inflection points (IP) may be omitted. The term 'inflection point (IP)' refers to a point on the object-side surfaces (L1, L2, L3, L4, L5, L6, L7, L8) that does not intersect the optical axis (O) and where the radius of curvature changes; it may be indicated by the symbol '●' in the drawings, and the reference number may be omitted.
[0109] In the following detailed description, values regarding the radius of curvature, effective focal length (EFL, f), total track length (TTL), air gap, thickness, or image height (IMG HT) of the lenses (L1, L2, L3, L4, L5, L6, L7, L8) of the present disclosure, including the variables of the above-described embodiments, may all have units of mm unless specifically noted. 'TTL' is the distance from the object side surface (S2) of the first lens (L1) to the image plane (img) of the image sensor (I), and can be measured parallel to the optical axis (O). Additionally, the radius of curvature, effective focal length, TTL, air gap, or thickness of the lenses (L1, L2, L3, L4, L5, L6, L7, L8) may be distances measured parallel to the optical axis (O), and / or the effective radius and the height of the image sensor (I) may be distances measured along a direction substantially perpendicular to the optical axis (O) from the point where the optical axis (O) intersects.
[0110] FIG. 12 is a drawing showing the camera module (500) and / or lens assembly (LA) of FIG. 8, and is a drawing for explaining the arrangement in a plane parallel to the optical axis (O) and the long side of the image sensor (I). FIG. 13 is a graph showing spherical aberration in the arrangement of FIG. 12 according to one embodiment of the present disclosure. FIG. 14 is a graph showing astigmatism in the arrangement of FIG. 12 according to one embodiment of the present disclosure. FIG. 15 is a graph showing the distortion rate in the arrangement of FIG. 12 according to one embodiment of the present disclosure.
[0111] FIG. 12 may illustrate an arrangement of lenses (L1, L2, L3, L4, L5, L6, L7, L8) in a plane parallel to the optical axis (O) and the long side of the image sensor (I). For example, the eighth lens (L8) of FIG. 12 may be illustrated as substantially the same lens as the eighth lens (L8) of FIG. 8, with a cross-section parallel to the second plane (LF) of FIG. 7. For example, the aberration diagrams or distortion rate graphs of FIG. 13 through 15 may illustrate values measured along a direction parallel to 'Dl' of FIG. 7 with respect to the intersection point of the optical axis (O) and the image sensor (I).
[0112] FIG. 16 is a drawing showing the camera module (500) and / or lens assembly (LA) of FIG. 8, and is a drawing for explaining the arrangement in a plane parallel to the optical axis (O) and the diagonal of the image sensor (I). FIG. 17 is a graph showing spherical aberration in the arrangement of FIG. 16 according to one embodiment of the present disclosure. FIG. 18 is a graph showing astigmatism in the arrangement of FIG. 16 according to one embodiment of the present disclosure. FIG. 19 is a graph showing the distortion rate in the arrangement of FIG. 16 according to one embodiment of the present disclosure.
[0113] FIG. 16 may illustrate an arrangement of lenses (L1, L2, L3, L4, L5, L6, L7, L8) in a plane parallel to the optical axis (O) and the diagonal of the image sensor (I). For example, the eighth lens (L8) of FIG. 16 may be illustrated as substantially the same lens as the eighth lens (L8) of FIG. 8, with a cross-section parallel to the optical axis and the diagonal of the image sensor. For example, the aberration diagrams or distortion rate graphs of FIG. 17 through 19 may illustrate values measured along a direction parallel to 'Dm' of FIG. 7 with respect to the intersection point of the optical axis (O) and the image sensor (I).
[0114] The camera module (500) and / or its lens assembly (LA) of FIGS. 8 through 19 may have a focal length of approximately 6.28 mm, an F-number of approximately 1.683, and an overall length (TTL) of approximately 7.363 mm. The overall length 'TTL' may refer, for example, to the distance from the object side surface (S2) of the first lens (L1) to the image plane (img) of the image sensor (I). In one embodiment, the camera module (500) and / or its lens assembly (LA) may satisfy at least some of the above-described condition(s), including [Condition 1-4], and may be manufactured to the specifications exemplified in the following [Table 1]. In the following [Table 1], at least one of the lens surfaces may be aspherical, and the symbol '*' is attached to the lens surface corresponding to the aspherical surface, which will be more clearly understood through the [Tables] regarding aspherical coefficients described later. The aperture 'sto' may be positioned between the first lens (L1) and the nth lens (e.g., the eighth lens (L8)). In the embodiments described below, the aperture may be positioned on any one of the lens surfaces, and 'sto' may be indicated alongside the number of the lens surface where the aperture is positioned.
[0115] Lens surface (Surf) Radius of curvature Thickness Focal Length (EFL) Refractive index (nd) Abesu (vd) obj infinity infinity S1 infinity 0.00000 S2* 2.52291 0.94984 5.646 1.54401 55.99 S3* 12.01289 0.03500 S4* 7.81533 0.21000 -13.655 1.66075 20.38 S5* 4.16474 0.33396 S6*(sto) 16.39471 0.30479 43.271 1.54401 55.99 S7* 53.13937 0.29382 S8* -12.39394 0.38220 16.880 1.56717 37.4 S9* -5.48123 0.04272 S10* -39.13867 0.35000 -16.140 1.68042 18.15 S11* 15.59514 0.70174 S12* -224.34703 0.35000 -23.900 1.61444 25.94 S13* 15.87572 0.26291 S14* 2.52896 0.52130 7.422 1.56717 37.4 S15* 5.80571 1.04705 S16* 3.26677 0.38 -5.90014 1.53485 55.74 S17* 1.54324 0.6147 S18 infinity 0.21 infinity 1.5168 64.2 S19 infinity 0.38314 img infinity -1.03E-02
[0117] Tables 2, 3, 4, and 5 below list the aspheric coefficients of lenses (L1, L2, L3, L4, L5, L6, L7, L8), and the definition of an aspheric surface is given by the following Equation 1.
[0118]
[0119] In [Equation 1], "x" is the distance in the direction of the optical axis (O) from the point where the optical axis (O) passes through the lens surface, "y" is the distance in the direction perpendicular to the optical axis (O) from the optical axis (O), 'R' is the radius of curvature at the vertex of the lens, 'K' is the conic constant, and 'Ai' is the aspherical coefficient, which can be written as 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'J', 'K', 'L', 'M', 'N', 'O' depending on the notation method.
[0120] Lens surface (Surf) 2_ASP 3_ASP 4_ASP 5_ASP Radius of curvature 2.52291E+00 1.20129E+01 7.81533E+00 4.16474E+00 K(Conic) -3.66779E-01 1.87648E+01 9.47346E+00 1.47652E+00 A(4th) / C4 5.14596E-03 7.05967E-03 -3.19841E-03 -8.93764E-03 B(6th) / C5 -1.43304E-02 2.22608E-02 2.20101E-02 1.10335E-02 C(8th) / C6 6.95646E-02 -1.68000E-01 -1.83922E-01 -7.17370E-02 D(10th) / C7 -1.84023E-01 4.52915E-01 5.35878E-01 1.83992E-01 E(12th) / C8 3.11911E-01 -7.27481E-01 -9.24509E-01 -2.36772E-01 F(14th) / C9 -3.58295E-01 7.82875E-01 1.07104E+00 1.07122E-01 G(16th) / C10 2.88365E-01 -5.91415E-01 -8.73644E-01 1.38006E-01 H(18th) / C11 -1.65458E-01 3.20130E-01 5.12061E-01 -2.86410E-01 J(20th) / C12 6.79921E-02 -1.24760E-01 -2.16637E-01 2.50949E-01 K(22th) / C13 -1.98419E-02 3.46865E-02 6.55353E-02 -1.32838E-01 L(24th) / C14 4.01046E-03 -6.70297E-03 -1.38074E-02 4.50216E-02 M(26th) / C15 -5.33145E-04 8.53979E-04 1.92122E-03 -9.58093E-03 N(28th) / C16 4.18766E-05 -6.43615E-05 -1.58375E-04 1.16813E-03 O(30th) / C17 -1.47038E-06 2.16865E-06 5.84417E-06 -6.22742E-05
[0122] Lens surface (Surf) 6_ASP 7_ASP 8_ASP 9_ASP Radius of curvature 1.63947E+01 5.31394E+01 -1.23939E+01 -5.48123E+00 K(Conic) 8.68375E+01 -1.00000E+00 5.73821E+01 9.56859E-01 A(4th) / C4 -4.11070E-03 -7.59345E-03 -5.44418E-04 3.72897E-02 B(6th) / C5 -7.40987E-02 -3.46716E-02 -3.30343E-03 -1.22762E-01 C(8th) / C6 3.75263E-01 1.51472E-01 -1.07232E-01 4.18624E-01 D(10th) / C7 -1.25392E+00 -5.11651E-01 5.54107E-01 -1.35670E+00 E(12th) / C8 2.77571E+00 1.21483E+00 -1.75319E+00 3.12026E+00 F(14th) / C9 -4.23664E+00 -2.07231E+00 3.72887E+00 -4.99853E+00 G(16th) / C10 4.58542E+00 2.59367E+00 -5.50858E+00 5.67544E+00 H(18th) / C11 -3.57050E+00 -2.39677E+00 5.75491E+00 -4.62505E+00 J(20th) / C12 2.00589E+00 1.62759E+00 -4.27846E+00 2.71168E+00 K(22th) / C13 -8.05363E-01 -7.99670E-01 2.24899E+00 -1.13290E+00 L(24th) / C14 2.25243E-01 2.75814E-01 -8.16851E-01 3.28709E-01 M(26th) / C15 -4.16582E-02 -6.31976E-02 1.95042E-01 -6.28747E-02 N(28th) / C16 4.57659E-03 8.62299E-03 -2.75515E-02 7.12095E-03 O(30th) / C17 -2.25995E-04 -5.29459E-04 1.74492E-03 -3.61288E-04
[0124] Lens surface (Surf) 10_ASP 11_ASP 12_ASP 13_ASP Radius of curvature -3.91387E+01 1.55951E+01 -2.24347E+02 1.58757E+01 K(Conic) -1.00000E+00 -3.87398E+01 -1.00000E+00 -5.00640E+00 A(4th) / C4 -8.18423E-03 -3.68960E-02 -3.65335E-02 -9.66209E-02 B(6th) / C5 -4.58528E-02 1.89461E-02 2.39659E-02 5.84417E-02 C(8th) / C6 1.13749E-01 -2.92706E-02 -2.17914E-02 -3.44870E-02 D(10th) / C7 -3.02881E-01 3.96667E-02 2.28900E-02 9.82003E-03 E(12th) / C8 6.13358E-01 -4.05639E-02 -2.35633E-02 9.24356E-03 F(14th) / C9 -8.70653E-01 2.88209E-02 1.92035E-02 -1.41205E-02 G(16th) / C10 8.72604E-01 -1.28385E-02 -1.17217E-02 9.31250E-03 H(18th) / C11 -6.25601E-01 2.33103E-03 5.25359E-03 -3.80644E-03 J(20th) / C12 3.22015E-01 9.90700E-04 -1.70398E-03 1.04200E-03 K(22th) / C13 -1.17943E-01 -8.61952E-04 3.92248E-04 -1.94561E-04 L(24th) / C14 2.99547E-02 2.95802E-04 -6.21167E-05 2.44839E-05 M(26th) / C15 -5.00252E-03 -5.67053E-05 6.41060E-06 -1.98771E-06 N(28th) / C16 4.92444E-04 5.94071E-06 -3.87353E-07 9.40562E-08 O(30th) / C17 -2.15584E-05 -2.65795E-07 1.03837E-08 -1.97148E-09
[0126] Lens surface (Surf) 14_ASP 15_ASP 16_ASP 17_ASP Radius of curvature 2.52897E+00 5.80571E+00 3.26677E+00 1.54324E+00 K(Conic) -1.28165E+01 3.12513E-01 -1.05874E+01 -6.13628E+00 A(4th) / C4 3.81195E-02 1.28248E-02 -1.84671E-01 -9.53331E-02 B(6th) / C5 -3.73636E-02 9.80562E-03 9.87078E-02 4.66365E-02 C(8th) / C6 2.22323E-02 -2.39096E-02 -3.96600E-02 -1.73498E-02 D(10th) / C7 -1.44096E-02 1.63738E-02 1.13968E-02 4.72788E-03 E(12th) / C8 8.03414E-03 -6.77979E-03 -2.25106E-03 -9.61325E-04 F(14th) / C9 -3.30850E-03 1.94208E-03 3.04791E-04 1.49006E-04 G(16th) / C10 9.68755E-04 -4.03505E-04 -2.81725E-05 -1.78069E-05 H(18th) / C11 -2.01289E-04 6.18325E-05 1.72040E-06 1.63648E-06 J(20th) / C12 2.96737E-05 -6.98631E-06 -6.12551E-08 -1.13871E-07 K(22th) / C13 -3.07557E-06 5.73728E-07 5.01620E-10 5.84215E-09 L(24th) / C14 2.18778E-07 -3.32067E-08 6.31552E-11 -2.12550E-10 M(26th) / C15 -1.01598E-08 1.28005E-09 -3.21194E-12 5.15867E-12 N(28th) / C16 2.77268E-10 -2.94126E-11 6.77877E-14 -7.46102E-14 O(30th) / C17 -3.37198E-12 3.04030E-13 -5.68927E-16 4.85115E-16
[0128] FIG. 20 is a graph for illustrating the relative illumination of the camera module (500) and / or lens assembly (LA) of FIG. 8 according to one embodiment of the present disclosure.
[0129] The graph of FIG. 20 may be a measurement of the relative illuminance of the lens assembly (LA) of FIG. 8, FIG. 12, and / or FIG. 16 according to the image height, for example, by defining the image height at the point where the optical axis (O) intersects the image sensor (I) and / or image plane (img) as 0 mm and / or the relative illuminance at that point as 100%. In FIG. 20, the graph indicated by 'SI' may exemplify the relative illuminance measured along the direction parallel to the first length (Ds) of FIG. 7, the graph indicated by 'LI' may exemplify the relative illuminance measured along the direction parallel to the second length (Dl) of FIG. 7, and the graph indicated by 'MI' may exemplify the relative illuminance measured along the direction parallel to the third length (Dm) of FIG. 7. Referring to FIG. 20, when a portion of the edge of the nth lens closest to the image sensor (I), for example, the fifth lens (L5) of FIG. 5 or the eighth lens (L8) of FIG. 8, is processed into a D-cut shape, it can be seen that the relative illumination of the periphery measured along a direction parallel to the first length (Ds) and / or the second length (Dl) is somewhat reduced. For example, in the illustrated embodiment, the point where the optical axis (O) intersects is defined as the 0mm point with a relative illumination of 100%, and when measured parallel to the third length (Dm) direction of FIG. 7, the relative illumination gradually decreases as the image height increases, reaching a relative illumination of approximately 20% at an image height of approximately 6mm. In one embodiment, when measured parallel to the first length (Ds) direction or the second length (Dl) direction of FIG. 7, the relative illumination may be lower at a lower image height. For example, the relative roughness measured parallel to the first length (Ds) direction of FIG. 7 may be lower than the relative roughness measured parallel to the second length (Dl) and / or third length (Dm) direction at a height of approximately 3 to 4 mm or higher, and the relative roughness measured parallel to the second length (Dl) direction of FIG. 7 may be lower than the relative roughness measured parallel to the third length (Dm) direction at a height of approximately 4 to 5 mm or higher.In describing with reference to the illustrated embodiments, the values of the aforementioned upper or relative illumination may vary depending on the size of the image sensor to be actually manufactured and the specifications of the D-cut lens (e.g., the eighth lens (L8) of FIG. 8, FIG. 12, and / or FIG. 16). In one embodiment, when the short side of the image sensor (I) and the short side of the D-cut lens (e.g., the eighth lens (L8) of FIG. 8, FIG. 12, and / or FIG. 16) are aligned parallel to each other, the peripheral light intensity reduced by the D-cut processing may not substantially affect the actual acquired image and may be compensated for through post-processing of the acquired image (e.g., image processing). For example, the camera module (500) according to the embodiment(s) of the present disclosure may be easy to miniaturize while providing good shooting performance.
[0130] FIG. 21 is a drawing showing a camera module (600) (e.g., camera modules (180, 280, 305, 312, 313, 400) of FIG. 1 to 5) and / or a lens assembly (LA) (e.g., lens assembly (LA) of FIG. 5) according to one embodiment of the present disclosure, and is a drawing for explaining an arrangement in a plane parallel to the optical axis (O) and the short side of an image sensor (I). FIG. 22 is a graph showing spherical aberration in the arrangement of FIG. 21 according to one embodiment of the present disclosure. FIG. 23 is a graph showing astigmatism in the arrangement of FIG. 21 according to one embodiment of the present disclosure. FIG. 24 is a graph showing distortion rate in the arrangement of FIG. 21 according to one embodiment of the present disclosure.
[0131] FIG. 21 may illustrate an arrangement of lenses (L1, L2, L3, L4, L5, L6, L7, L8) in a plane parallel to the optical axis (O) and the short side of the image sensor (I). For example, the eighth lens (L8) of FIG. 21 may be illustrated in a cross-section parallel to the first plane (SF) of FIG. 7.
[0132] FIG. 25 is a drawing showing the camera module (600) and / or lens assembly (LA) of FIG. 21, and is a drawing for explaining the arrangement in a plane parallel to the optical axis (O) and the long side of the image sensor (I). FIG. 26 is a graph showing spherical aberration in the arrangement of FIG. 25 according to one embodiment of the present disclosure. FIG. 27 is a graph showing astigmatism in the arrangement of FIG. 25 according to one embodiment of the present disclosure. FIG. 28 is a graph showing the distortion rate in the arrangement of FIG. 25 according to one embodiment of the present disclosure.
[0133] FIG. 25 may illustrate an arrangement of lenses (L1, L2, L3, L4, L5, L6, L7, L8) in a plane parallel to the optical axis (O) and the long side of the image sensor (I). For example, the eighth lens (L8) of FIG. 25 may be illustrated as substantially the same lens as the eighth lens (L8) of FIG. 21, with a cross-section parallel to the second plane (LF) of FIG. 7.
[0134] FIG. 29 is a drawing showing the camera module (600) and / or lens assembly (LA) of FIG. 21, and is a drawing for explaining the arrangement in a plane parallel to the optical axis (O) and the diagonal of the image sensor (I). FIG. 30 is a graph showing spherical aberration in the arrangement of FIG. 29 according to one embodiment of the present disclosure. FIG. 31 is a graph showing astigmatism in the arrangement of FIG. 29 according to one embodiment of the present disclosure. FIG. 32 is a graph showing distortion rate in the arrangement of FIG. 29 according to one embodiment of the present disclosure.
[0135] FIG. 29 may illustrate an arrangement of lenses (L1, L2, L3, L4, L5, L6, L7, L8) in a plane parallel to the optical axis (O) and the diagonal of the image sensor (I). For example, the eighth lens (L8) of FIG. 29 may be illustrated as a lens substantially identical to the eighth lens (L8) of FIG. 21, with a cross-section parallel to the optical axis (O) and the diagonal of the image sensor (I).
[0136] The camera module (600) and / or its lens assembly (LA) of FIGS. 21 to 32 may have a focal length of approximately 6.529 mm, an F-number of approximately 1.73, and an overall length (TTL) of approximately 7.698 mm. In one embodiment, the camera module (600) and / or its lens assembly (LA) may satisfy at least some of the above-described condition(s) including [Condition 1-4] and may be manufactured with the specifications exemplified in the following [Table 6], and the following [Tables 7], [Table 8], [Table 9], and [Table 10] may exemplify the aspherical coefficients of the lenses (L1, L2, L3, L4, L5, L6, L7, L8).
[0137] Lens surface (Surf) Radius of curvature Thickness Focal Length (EFL) Refractive index (nd) Abesu (vd) obj infinity infinity S1 infinity 0.00000 S2* 2.63681 1.01667 5.839 1.54401 55.99 S3* 13.13781 0.10000 S4* 9.22574 0.28000 -14.507 1.66075 20.38 S5* 4.66984 0.20192 S6*(sto) 15.56178 0.39808 39.507 1.54401 55.99 S7* 55.27161 0.27237 S8* -12.34015 0.45696 16.349 1.56717 37.4 S9* -5.38476 0.10000 S10* -10.48848 0.35208 -15.219 1.68042 18.15 S11* 5110821.9259 0.66472 S12* -81.93058 0.45515 -27.774 1.61444 25.94 S13* 21.84943 0.26755 S14* 2.67733 0.50764 7.932 1.56717 37.4 S15* 6.10105 1.03490 S16* 3.8106 0.39056 -5.62602 1.53485 55.74 S17* 1.62502 0.62156 S18 infinity 0.21 infinity 1.5168 64.2 S19 infinity 0.35755 img infinity 1.00E-02
[0139] Lens surface (Surf) 2_ASP 3_ASP 4_ASP 5_ASP Radius of curvature 2.63681E+00 1.31378E+01 9.22574E+00 4.66984E+00 K(Conic) -4.53201E-01 1.36253E+01 1.03326E+01 1.13382E+00 A(4th) / C4 2.21101E-04 1.80698E-02 -1.42413E-03 -6.89257E-03 B(6th) / C5 1.86874E-02 -8.57050E-02 7.94799E-03 4.91870E-02 C(8th) / C6 -5.41435E-02 2.88836E-01 -8.09370E-02 -3.22158E-01 D(10th) / C7 1.04533E-01 -6.58839E-01 2.32517E-01 1.09772E+00 E(12th) / C8 -1.38988E-01 1.02472E+00 -4.07044E-01 -2.44163E+00 F(14th) / C9 1.31072E-01 -1.11587E+00 4.95442E-01 3.75402E+00 G(16th) / C10 -8.88802E-02 8.69544E-01 -4.34537E-01 -4.08726E+00 H(18th) / C11 4.35556E-02 -4.90774E-01 2.77492E-01 3.18796E+00 J(20th) / C12 -1.53801E-02 2.00917E-01 -1.28813E-01 -1.78374E+00 K(22th) / C13 3.86379E-03 -5.90399E-02 4.29206E-02 7.08828E-01 L(24th) / C14 -6.71976E-04 1.21284E-02 -9.98562E-03 -1.94991E-01 M(26th) / C15 7.67623E-05 -1.65247E-03 1.53812E-03 3.52641E-02 N(28th) / C16 -5.17543E-06 1.34068E-04 -1.40808E-04 -3.76844E-03 O(30th) / C17 1.56042E-07 -4.89900E-06 5.79501E-06 1.80197E-04
[0141] Lens surface (Surf) 6_ASP 7_ASP 8_ASP 9_ASP Radius of curvature 1.55618E+01 5.52716E+01 -1.23402E+01 -5.38476E+00 K(Conic) 8.24925E+01 -1.00000E+00 5.63779E+01 1.13432E+00 A(4th) / C4 1.04854E-02 -1.34128E-02 -4.41673E-03 3.16002E-02 B(6th) / C5 -1.18798E-01 9.59948E-02 1.06297E-02 -1.41718E-01 C(8th) / C6 4.87018E-01 -5.50028E-01 -1.32607E-01 5.06636E-01 D(10th) / C7 -1.35766E+00 1.84187E+00 6.26515E-01 -1.40764E+00 E(12th) / C8 2.55002E+00 -4.08299E+00 -2.00755E+00 2.72111E+00 F(14th) / C9 -3.33424E+00 6.25264E+00 4.34562E+00 -3.73220E+00 G(16th) / C10 3.10724E+00 -6.77806E+00 -6.48219E+00 3.70547E+00 H(18th) / C11 -2.08861E+00 5.26989E+00 6.78860E+00 -2.69056E+00 J(20th) / C12 1.01435E+00 -2.94539E+00 -5.03214E+00 1.42949E+00 K(22th) / C13 -3.52551E-01 1.17185E+00 2.62670E+00 -5.49742E-01 L(24th) / C14 8.55359E-02 -3.23406E-01 -9.44201E-01 1.49020E-01 M(26th) / C15 -1.37705E-02 5.87551E-02 2.22450E-01 -2.70089E-02 N(28th) / C16 1.32351E-03 -6.30927E-03 -3.09156E-02 2.93766E-03 O(30th) / C17 -5.75632E-05 3.02837E-04 1.92092E-03 -1.44978E-04
[0143] Lens surface (Surf) 10_ASP 11_ASP 12_ASP 13_ASP Radius of curvature -1.04885E+01 5.11082E+06 -8.19306E+01 2.18494E+01 K(Conic) -1.00000E+00 6.86151E+05 -1.00000E+00 -4.52440E+01 A(4th) / C4 -1.45028E-02 -3.77680E-02 -3.58626E-02 -9.19137E-02 B(6th) / C5 2.34291E-02 5.99185E-02 1.70472E-02 5.91658E-02 C(8th) / C6 -2.20218E-01 -1.81723E-01 2.02687E-03 -4.16129E-02 D(10th) / C7 7.79069E-01 3.68238E-01 -2.20109E-02 2.37118E-02 E(12th) / C8 -1.75083E+00 -5.15752E-01 2.91738E-02 -7.30970E-03 F(14th) / C9 2.67642E+00 5.11610E-01 -2.31884E-02 -1.18458E-03 G(16th) / C10 -2.87307E+00 -3.65909E-01 1.25695E-02 2.40997E-03 H(18th) / C11 2.20305E+00 1.90459E-01 -4.81225E-03 -1.23090E-03 J(20th) / C12 -1.21205E+00 -7.21253E-02 1.31062E-03 3.64601E-04 K(22th) / C13 4.74425E-01 1.96396E-02 -2.51900E-04 -6.98016E-05 L(24th) / C14 -1.28880E-01 -3.74160E-03 3.33954E-05 8.76786E-06 M(26th) / C15 2.30834E-02 4.72828E-04 -2.91408E-06 -6.99527E-07 N(28th) / C16 -2.45014E-03 -3.55656E-05 1.51502E-07 3.22082E-08 O(30th) / C17 1.16686E-04 1.20395E-06 -3.58679E-09 -6.52499E-10
[0145] Lens surface (Surf) 14_ASP 15_ASP 16_ASP 17_ASP Radius of curvature 2.67733E+00 6.10105E+00 3.81060E+00 1.62502E+00 K(Conic) -1.47921E+01 2.66559E-01 -1.07193E+01 -6.05576E+00 A(4th) / C4 3.83742E-02 1.48454E-02 -1.81724E-01 -9.91780E-02 B(6th) / C5 -3.93378E-02 3.77772E-03 9.87429E-02 5.23604E-02 C(8th) / C6 2.37158E-02 -1.74297E-02 -3.97625E-02 -2.05029E-02 D(10th) / C7 -1.45276E-02 1.21798E-02 1.13055E-02 5.77049E-03 E(12th) / C8 7.60369E-03 -4.93005E-03 -2.21286E-03 -1.18790E-03 F(14th) / C9 -2.98527E-03 1.36209E-03 3.01357E-04 1.81779E-04 G(16th) / C10 8.43498E-04 -2.71886E-04 -2.89406E-05 -2.08437E-05 H(18th) / C11 -1.70383E-04 4.00762E-05 1.96751E-06 1.79101E-06 J(20th) / C12 2.45278E-05 -4.37432E-06 -9.35711E-08 -1.14391E-07 K(22th) / C13 -2.48922E-06 3.49043E-07 2.99848E-09 5.33392E-09 L(24th) / C14 1.73651E-07 -1.97489E-08 -5.89963E-11 -1.75823E-10 M(26th) / C15 -7.91541E-09 7.48317E-10 5.26466E-13 3.87063E-12 N(28th) / C16 2.12127E-10 -1.69783E-11 2.13898E-15 -5.09425E-14 O(30th) / C17 -2.53371E-12 1.73890E-13 -6.21769E-17 3.02627E-16
[0147] FIG. 33 is a graph for illustrating the relative illumination of the camera module (600) and / or lens assembly (LA) of FIG. 21 according to one embodiment of the present disclosure.
[0148] In FIG. 33, the graph labeled 'SI' illustrates the relative illumination in the alignment state of the lenses (L1, L2, L3, L4, L5, L6, L7, L8) of FIG. 21, the graph labeled 'LI' illustrates the relative illumination in the alignment state of the lenses (L1, L2, L3, L4, L5, L6, L7, L8) of FIG. 25, and the graph labeled 'MI' illustrates the relative illumination in the alignment state of the lenses (L1, L2, L3, L4, L5, L6, L7, L8) of FIG. 29. Referring to FIG. 33, it can be seen that when a portion of the edge of the nth lens closest to the image sensor (I), for example, the 5th lens (L5) of FIG. 5 or the 8th lens (L8) of FIG. 21, is processed into a D-cut shape, the relative illumination of the periphery is somewhat reduced. In one embodiment, when the short side of the image sensor (I) and the short side of the D-cut lens (e.g., the side parallel to the first length (Ds) in FIG. 7) are aligned parallel to each other, the peripheral light intensity reduced by the D-cut process may not substantially affect the actual acquired image. For example, the camera module (600) according to the embodiment(s) of the present disclosure may be easy to miniaturize while providing good shooting performance.
[0149] FIG. 34 is a drawing showing a camera module (700) (e.g., camera modules (180, 280, 305, 312, 313, 400) of FIG. 1 to 5) and / or a lens assembly (LA) (e.g., lens assembly (LA) of FIG. 5) according to one embodiment of the present disclosure, and is a drawing for explaining an arrangement in a plane parallel to the optical axis (O) and the short side of an image sensor (I). FIG. 35 is a graph showing spherical aberration in the arrangement of FIG. 34 according to one embodiment of the present disclosure. FIG. 36 is a graph showing astigmatism in the arrangement of FIG. 34 according to one embodiment of the present disclosure. FIG. 37 is a graph showing distortion rate in the arrangement of FIG. 34 according to one embodiment of the present disclosure.
[0150] FIG. 34 may illustrate an arrangement of lenses (L1, L2, L3, L4, L5, L6, L7) in a plane parallel to the optical axis (O) and the short side of the image sensor (I). For example, the seventh lens (L7) closest to the image sensor (I) in FIG. 34 may be illustrated in a cross-section parallel to the first plane (SF) in FIG. 7.
[0151] FIG. 38 is a drawing showing the camera module (700) and / or lens assembly (LA) of FIG. 34, and is a drawing for explaining the arrangement in a plane parallel to the optical axis (O) and the long side of the image sensor (I). FIG. 39 is a graph showing spherical aberration in the arrangement of FIG. 38 according to one embodiment of the present disclosure. FIG. 40 is a graph showing astigmatism in the arrangement of FIG. 38 according to one embodiment of the present disclosure. FIG. 41 is a graph showing the distortion rate in the arrangement of FIG. 38 according to one embodiment of the present disclosure.
[0152] FIG. 38 may illustrate an arrangement of lenses (L1, L2, L3, L4, L5, L6, L7) in a plane parallel to the optical axis (O) and the long side of the image sensor (I). For example, the seventh lens (L7) of FIG. 38 may be illustrated as substantially the same lens as the seventh lens (L7) of FIG. 34, with a cross-section parallel to the second plane (LF) of FIG. 7.
[0153] FIG. 42 is a drawing showing the camera module (700) and / or lens assembly (LA) of FIG. 34, and is a drawing for explaining the arrangement in a plane parallel to the optical axis (O) and the diagonal of the image sensor (I). FIG. 43 is a graph showing spherical aberration in the arrangement of FIG. 42 according to one embodiment of the present disclosure. FIG. 44 is a graph showing astigmatism in the arrangement of FIG. 42 according to one embodiment of the present disclosure. FIG. 45 is a graph showing the distortion rate in the arrangement of FIG. 42 according to one embodiment of the present disclosure.
[0154] FIG. 42 may illustrate an arrangement of lenses (L1, L2, L3, L4, L5, L6, L7) in a plane parallel to the optical axis (O) and the diagonal of the image sensor (I). For example, the seventh lens (L7) of FIG. 42 may be illustrated as substantially the same lens as the seventh lens (L7) of FIG. 34, with a cross-section parallel to the optical axis (O) and the diagonal of the image sensor (I).
[0155] The camera module (700) and / or its lens assembly (LA) of FIGS. 34 to 45 may include seven lenses (L1, L2, L3, L4, L5, L6, L7) and may have a focal length of approximately 6.00 mm, an F-number of approximately 1.699, and an overall length (TTL) of approximately 7.158 mm. In one embodiment, the camera module (700) and / or its lens assembly (LA) may satisfy at least some of the above-described condition(s) including [Condition 1-4] and may be manufactured with the specifications exemplified in the following [Table 11], and the following [Table 12], [Table 13], [Table 14], and [Table 15] may exemplify the aspherical coefficients of the lenses (L1, L2, L3, L4, L5, L6, L7). Although omitted in the drawing, when referring to [Table 11], a dummy surface exemplified as 'S6' in [Table 11] may exist between the sensor side surface (S5) of the second lens (L2) and the object side surface (L7) of the third lens (L3). The dummy surface may be a surface referenced, for example, during the process of designing or manufacturing the lens assembly (LA). In one embodiment, the sensor side surface (S5) of the second lens (L2) may be understood as a surface on which an aperture is placed.
[0156] Lens surface (Surf) Radius of curvature Thickness Focal Length (EFL) Refractive index (nd) Abesu (vd) obj infinity 1000 S1 infinity -0.77941 S2* 2.44863 0.96720 5.748 1.54397 55.93 S3* 9.56978 0.10000 S4* 15.14597 0.30007 -16.224 1.67074 19.24 S5*(sto) 6.32584 0.24074 S6 infinity 0.10000 S7* 11.98798 0.40898 25.131 1.54397 55.93 S8* 93.39714 0.30818 S9* -19.75274 0.30308 -28.599 1.67074 19.24 S10* 1145.45601 0.27568 S11* 28.8171 0.31310 -53.182 1.61442 25.96 S12* 15.31398 0.46493 S13* 3.93740 0.69595 7.571 1.56717 37.4 S14* 41.47022 1.07423 S15* 8.32893 0.56346 -5.29673 1.53480 55.71 S16* 2.07043 0.60001 S17 infinity 0.21 infinity 1.5168 64.2 S18 infinity 0 S19 infinity 0.23668 img infinity -4.04E-03
[0158] Lens surface (Surf) 2_ASP 3_ASP 4_ASP 5_ASP Radius of curvature 2.44863E+00 9.56978E+00 1.51460E+01 6.32584E+00 K(Conic) -5.95042E-01 -4.79997E+00 9.86273E+00 3.60511E+00 A(4th) / C4 5.20500E-03 4.41443E-03 -1.09015E-02 -1.33627E-02 B(6th) / C5 1.72096E-02 -8.53078E-02 -1.20585E-03 6.67453E-02 C(8th) / C6 -1.02586E-01 3.97333E-01 6.79489E-02 -2.78214E-01 D(10th) / C7 3.17405E-01 -1.11520E+00 -2.61976E-01 7.26674E-01 E(12th) / C8 -6.01101E-01 2.09420E+00 6.25606E-01 -1.06548E+00 F(14th) / C9 7.60292E-01 -2.75082E+00 -1.02268E+00 5.75418E-01 G(16th) / C10 -6.71276E-01 2.59174E+00 1.18955E+00 8.57130E-01 H(18th) / C11 4.23005E-01 -1.77334E+00 -1.00082E+00 -2.17399E+00 J(20th) / C12 -1.91561E-01 8.82328E-01 6.10215E-01 2.32435E+00 K(22th) / C13 6.18943E-02 -3.15868E-01 -2.66569E-01 -1.50688E+00 L(24th) / C14 -1.39255E-02 7.92393E-02 8.11703E-02 6.27934E-01 M(26th) / C15 2.07275E-03 -1.32161E-02 -1.63311E-02 -1.65002E-01 N(28th) / C16 -1.83426E-04 1.31585E-03 1.94813E-03 2.49653E-02 O(30th) / C17 7.30466E-06 -5.91569E-05 -1.04198E-04 -1.66157E-03
[0160] 렌즈면(Surf) 7_ASP 8_ASP 9_ASP 곡률반경(Radius) 1.19880E+01 9.33971E+01 -1.97527E+01 K(Conic) 2.22603E+01 -1.00000E+00 5.81388E+00 A(4th) / C4 1.64549E-03 -1.03077E-02 -3.94472E-02 B(6th) / C5 -1.93498E-01 -5.25356E-02 7.54844E-02 C(8th) / C6 1.15557E+00 3.28351E-01 -3.42254E-01 D(10th) / C7 -4.31715E+00 -1.38041E+00 6.25176E-01 E(12th) / C8 1.07003E+01 3.76734E+00 -1.84641E-01 F(14th) / C9 -1.83102E+01 -7.00643E+00 -1.72915E+00 G(16th) / C10 2.21258E+01 9.17642E+00 4.46933E+00 H(18th) / C11 -1.90669E+01 -8.62133E+00 -6.03639E+00 J(20th) / C12 1.16944E+01 5.84444E+00 5.26393E+00 K(22th) / C13 -5.02543E+00 -2.83834E+00 -3.10925E+00 L(24th) / C14 1.46111E+00 9.64342E-01 1.24119E+00 M(26th) / C15 -2.68543E-01 -2.17969E-01 -3.21625E-01 N(28th) / C16 2.71584E-02 2.94878E-02 4.89210E-02 O(30th) / C17 -1.05758E-03 -1.80952E-03 -3.31907E-03
[0162] 렌즈면(Surf) 10_ASP 11_ASP 12_ASP 13_ASP 곡률반경(Radius) 1.14546E+03 2.88171E+01 1.53140E+01 3.93740E+00 K(Conic) -1.00000E+00 -1.00000E+00 -2.75941E+01 -1.77554E+01 A(4th) / C4 -3.54813E-02 -1.08907E-01 -1.30909E-01 1.16311E-04 B(6th) / C5 3.72955E-02 1.66553E-01 1.25188E-01 -3.77170E-02 C(8th) / C6 -7.18874E-02 -3.34144E-01 -1.62287E-01 6.12966E-02 D(10th) / C7 -8.03109E-02 6.28745E-01 2.15013E-01 -6.43104E-02 E(12th) / C8 6.28606E-01 -9.38027E-01 -2.37976E-01 4.49618E-02 F(14th) / C9 -1.43254E+00 1.03718E+00 1.99179E-01 -2.22467E-02 G(16th) / C10 1.92655E+00 -8.37216E-01 -1.21685E-01 7.98155E-03 H(18th) / C11 -1.72551E+00 4.91845E-01 5.36364E-02 -2.08776E-03 J(20th) / C12 1.06978E+00 -2.09192E-01 -1.69071E-02 3.95810E-04 K(22th) / C13 -4.62038E-01 6.35349E-02 3.75550E-03 -5.35249E-05 L(24th) / C14 1.36638E-01 -1.33934E-02 -5.71870E-04 5.01293E-06 M(26th) / C15 -2.63987E-02 1.85591E-03 5.66658E-05 -3.08195E-07 N(28th) / C16 3.00315E-03 -1.51477E-04 -3.28431E-06 1.11723E-08 O(30th) / C17 -1.52578E-04 5.49565E-06 8.43322E-08 -1.80853E-10
[0164] 렌즈면(Surf) 14_ASP 15_ASP 16_ASP 곡률반경(Radius) 4.14702E+01 8.32894E+00 2.07043E+00 K(Conic) -7.92723E+01 -9.61392E+00 -7.67630E+00 A(4th) / C4 -9.16145E-03 -1.51184E-01 -4.70737E-02 B(6th) / C5 7.43312E-03 7.17481E-02 5.12374E-03 C(8th) / C6 -5.06117E-03 -2.76272E-02 4.62805E-03 D(10th) / C7 1.57050E-03 8.05975E-03 -2.80296E-03 E(12th) / C8 -3.44340E-04 -1.62840E-03 7.87492E-04 F(14th) / C9 5.06293E-05 2.25107E-04 -1.36876E-04 G(16th) / C10 2.90823E-06 -2.14216E-05 1.60559E-05 H(18th) / C11 -3.97072E-06 1.39657E-06 -1.31961E-06 J(20th) / C12 1.03039E-06 -6.02907E-08 7.70120E-08 K(22th) / C13 -1.43835E-07 1.54304E-09 -3.17719E-09 L(24th) / C14 1.20967E-08 -1.32272E-11 9.05275E-11 M(26th) / C15 -6.15191E-10 -4.39411E-13 -1.69268E-12 N(28th) / C16 1.75900E-11 1.42245E-14 1.86567E-14 O(30th) / C17 -2.20308E-13 -1.28821E-16 -9.16627E-17
[0166] FIG. 46 is a graph for illustrating the relative illumination of the camera module (700) and / or lens assembly (LA) of FIG. 34 according to one embodiment of the present disclosure.
[0167] In FIG. 46, the graph labeled 'SI' illustrates the relative illumination in the alignment state of the lenses (L1, L2, L3, L4, L5, L6, L7) of FIG. 34, the graph labeled 'LI' illustrates the relative illumination in the alignment state of the lenses (L1, L2, L3, L4, L5, L6, L7) of FIG. 38, and the graph labeled 'MI' illustrates the relative illumination in the alignment state of the lenses (L1, L2, L3, L4, L5, L6, L7) of FIG. 42. Referring to FIG. 46, it can be seen that when a portion of the edge of the nth lens closest to the image sensor (I), for example, the 5th lens (L5) of FIG. 5 or the 7th lens (L7) of FIG. 34, is processed into a D-cut shape, the relative illumination of the periphery is somewhat reduced. In one embodiment, when the short side of the image sensor (I) and the short side of the D-cut lens (e.g., the side parallel to the first length (Ds) in FIG. 7) are aligned parallel to each other, the peripheral light intensity reduced by the D-cut processing may not substantially affect the actual acquired image. For example, the camera module (700) according to the embodiment(s) of the present disclosure may be easy to miniaturize while providing good shooting performance.
[0168] FIG. 47 is a drawing showing a camera module (800) (e.g., camera modules of FIG. 1 to 5 (180, 280, 305, 312, 313, 400)) and / or a lens assembly (LA) (e.g., lens assembly of FIG. 5 (LA)) according to one embodiment of the present disclosure, and is a drawing for explaining an arrangement in a plane parallel to the optical axis (O) and the short side of an image sensor (I). FIG. 48 is a graph showing spherical aberration in the arrangement of FIG. 47 according to one embodiment of the present disclosure. FIG. 49 is a graph showing astigmatism in the arrangement of FIG. 47 according to one embodiment of the present disclosure. FIG. 50 is a graph showing distortion rate in the arrangement of FIG. 47 according to one embodiment of the present disclosure.
[0169] FIG. 47 may illustrate an arrangement of lenses (L1, L2, L3, L4, L5, L6, L7) in a plane parallel to the optical axis (O) and the short side of the image sensor (I). For example, the seventh lens (L7) of FIG. 47 may be illustrated in a cross-section parallel to the first plane (SF) of FIG. 7.
[0170] FIG. 51 is a drawing showing the camera module (800) and / or lens assembly (LA) of FIG. 47, and is a drawing for explaining the arrangement in a plane parallel to the optical axis (O) and the long side of the image sensor (I). FIG. 52 is a graph showing spherical aberration in the arrangement of FIG. 51 according to one embodiment of the present disclosure. FIG. 53 is a graph showing astigmatism in the arrangement of FIG. 51 according to one embodiment of the present disclosure. FIG. 54 is a graph showing the distortion rate in the arrangement of FIG. 51 according to one embodiment of the present disclosure.
[0171] FIG. 51 may illustrate an arrangement of lenses (L1, L2, L3, L4, L5, L6, L7) in a plane parallel to the optical axis (O) and the long side of the image sensor (I). For example, the seventh lens (L7) of FIG. 51 may be illustrated as substantially the same lens as the seventh lens (L7) of FIG. 47, with a cross-section parallel to the second plane (SF) of FIG. 7.
[0172] FIG. 55 is a drawing showing the camera module (800) and / or lens assembly (LA) of FIG. 47, and is a drawing for explaining the arrangement in a plane parallel to the optical axis (O) and the diagonal of the image sensor (I). FIG. 56 is a graph showing spherical aberration in the arrangement of FIG. 55 according to one embodiment of the present disclosure. FIG. 57 is a graph showing astigmatism in the arrangement of FIG. 55 according to one embodiment of the present disclosure. FIG. 58 is a graph showing the distortion rate in the arrangement of FIG. 55 according to one embodiment of the present disclosure.
[0173] FIG. 55 may illustrate an arrangement of lenses (L1, L2, L3, L4, L5, L6, L7) in a plane parallel to the optical axis (O) and the diagonal of the image sensor (I). For example, the seventh lens (L7) of FIG. 55 may be illustrated as substantially the same lens as the seventh lens (L7) of FIG. 47, with a cross-section parallel to the optical axis (O) and the diagonal of the image sensor (I).
[0174] The camera module (800) and / or its lens assembly (LA) of FIGS. 47 to 58 may include seven lenses (L1, L2, L3, L4, L5, L6, L7) and may have a focal length of approximately 5.40 mm, an F-number of approximately 1.924, and an overall length (TTL) of approximately 6.00 mm. In one embodiment, the camera module (800) and / or its lens assembly (LA) may satisfy at least some of the above-described condition(s) including [Condition 1-4] and may be manufactured with the specifications exemplified in the following [Table 16], and the following [Table 17], [Table 18], [Table 19], and [Table 20] may exemplify the aspherical coefficients of the lenses (L1, L2, L3, L4, L5, L6, L7).
[0175] 렌즈면(Surf) 곡률반경(Radius) 두께(Thick) 초점거리(EFL) 굴절율(nd) 아베수(vd) obj infinity infinity S1 infinity 0.00000 S2* 2.17200 0.63873 5.305 1.54401 55.99 S3* 7.76705 0.10000 S4* 6.26568 0.22075 -14.366 1.68042 18.15 S5* 3.78200 0.22267 S6* 9.72888 0.33734 15.575 1.53485 55.74 S7*(sto) -58.99077 0.34553 S8* -232.65756 0.25257 -43.605 1.68042 18.15 S9* 34.52255 0.41501 S10* 7.35426 0.28251 -16.279 1.63490 23.96 S11* 4.2495 0.33003 S12* 4.71205 0.39841 5.334 1.56717 37.4 S13* -8.33538 0.87555 S14* 12.56317 0.50120 -4.009 1.54401 55.99 S15* 1.83881 0.63630 S16 infinity 0.11 infinity 1.51680 64.2 S17 infinity 0.3534 img infinity -0.02
[0177] 렌즈면(Surf) 2_ASP 3_ASP 4_ASP 5_ASP 곡률반경(Radius) 2.17200E+00 7.76705E+00 6.26568E+00 3.78200E+00 K(Conic) -1.34464E+00 2.42832E+01 -6.40081E+01 -7.68016E+00 A(4th) / C4 2.06236E-02 3.25522E-02 5.81568E-02 3.02521E-03 B(6th) / C5 -9.97324E-02 -3.45630E-01 -4.89037E-01 1.41188E-01 C(8th) / C6 6.83370E-01 2.17980E+00 3.35075E+00 -1.81585E+00 D(10th) / C7 -2.39721E+00 -9.76897E+00 -1.54662E+01 1.02294E+01 E(12th) / C8 4.86295E+00 3.08452E+01 4.78658E+01 -3.38369E+01 F(14th) / C9 -5.57706E+00 -6.94474E+01 -1.02524E+02 7.09292E+01 G(16th) / C10 2.41041E+00 1.12815E+02 1.55897E+02 -9.58144E+01 H(18th) / C11 2.63939E+00 -1.33064E+02 -1.70705E+02 7.99252E+01 J(20th) / C12 -5.30462E+00 1.13800E+02 1.35052E+02 -3.26226E+01 K(22th) / C13 4.36319E+00 -6.97516E+01 -7.65355E+01 -6.10404E+00 L(24th) / C14 -2.11005E+00 2.98323E+01 3.03177E+01 1.55396E+01 M(26th) / C15 6.21347E-01 -8.44755E+00 -7.97976E+00 -8.57708E+00 N(28th) / C16 -1.03576E-01 1.42238E+00 1.25534E+00 2.23974E+00 O(30th) / C17 7.52486E-03 -1.07762E-01 -8.94461E-02 -2.37549E-01
[0179] Lens surface (Surf) 6_ASP 7_ASP 8_ASP 9_ASP Radius of curvature 9.72888E+00 -5.89908E+01 -2.32658E+02 3.45225E+01 K(Conic) 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 A(4th) / C4 -1.72640E-02 -5.82410E-02 -9.00761E-02 -8.85714E-02 B(6th) / C5 1.41121E-01 6.28540E-01 4.29440E-01 2.77782E-01 C(8th) / C6 -1.50460E+00 -5.62313E+00 -2.75748E+00 -1.12795E+00 D(10th) / C7 1.07493E+01 3.12501E+01 1.15120E+01 3.12891E+00 E(12th) / C8 -5.31418E+01 -1.15812E+02 -3.34924E+01 -6.25341E+00 F(14th) / C9 1.79079E+02 2.97866E+02 6.98682E+01 9.23756E+00 G(16th) / C10 -4.15910E+02 -5.45227E+02 -1.06155E+02 -1.02684E+01 H(18th) / C11 6.75623E+02 7.19841E+02 1.18240E+02 8.67368E+00 J(20th) / C12 -7.73287E+02 -6.87064E+02 -9.62973E+01 -5.56302E+00 K(22th) / C13 6.20679E+02 4.69468E+02 5.65807E+01 2.67204E+00 L(24th) / C14 -3.41924E+02 -2.23793E+02 -2.33079E+01 -9.31583E-01 M(26th) / C15 1.23133E+02 7.06470E+01 6.37455E+00 2.22267E-01 N(28th) / C16 -2.61057E+01 -1.32663E+01 -1.03723E+00 -3.23512E-02 O(30th) / C17 2.47072E+00 1.12138E+00 7.57812E-02 2.15701E-03
[0181] Lens surface (Surf) 10_ASP 11_ASP 12_ASP Radius of curvature 7.35426E+00 4.24947E+00 4.71205E+00 K(Conic) 0.00000E+00 0.00000E+00 2.86543E+00 A(4th) / C4 -1.57998E-01 -1.62199E-01 1.74005E-02 B(6th) / C5 3.09539E-01 3.94286E-02 -1.59274E-01 C(8th) / C6 -1.42750E+00 5.01401E-02 4.04645E-01 D(10th) / C7 5.26741E+00 -3.63835E-02 -7.40803E-01 E(12th) / C8 -1.31659E+01 -1.24773E-01 9.08608E-01 F(14th) / C9 2.27698E+01 3.19155E-01 -7.64875E-01 G(16th) / C10 -2.79606E+01 -3.80557E-01 4.53578E-01 H(18th) / C11 2.46979E+01 2.83395E-01 -1.92485E-01 J(20th) / C12 -1.57180E+01 -1.41437E-01 5.86465E-02 K(22th) / C13 7.13236E+00 4.81137E-02 -1.27035E-02 L(24th) / C14 -2.24781E+00 -1.10127E-02 1.90606E-03 M(26th) / C15 4.66867E-01 1.62174E-03 -1.88045E-04 N(28th) / C16 -5.73830E-02 -1.38683E-04 1.09601E-05 O(30th) / C17 3.15738E-03 5.23026E-06 -2.85733E-07
[0183] Lens surface (Surf) 13_ASP 14_ASP 15_ASP Radius of curvature -8.33538E+00 1.25632E+01 1.83881E+00 K(Conic) -1.16584E+01 0.00000E+00 -4.60854E+00 A(4th) / C4 3.49246E-02 -1.80974E-01 -1.44405E-01 B(6th) / C5 3.75752E-02 9.93735E-02 1.06629E-01 C(8th) / C6 -1.01812E-01 -5.62359E-02 -6.54139E-02 D(10th) / C7 9.99434E-02 2.90849E-02 3.02288E-02 E(12th) / C8 -5.81197E-02 -1.08021E-02 -1.02244E-02 F(14th) / C9 2.19613E-02 2.76835E-03 2.53658E-03 G(16th) / C10 -5.61330E-03 -4.98508E-04 -4.64741E-04 H(18th) / C11 9.85442E-04 6.42418E-05 6.30050E-05 J(20th) / C12 -1.17781E-04 -5.96831E-06 -6.28494E-06 K(22th) / C13 9.20055E-06 3.97228E-07 4.54236E-07 L(24th) / C14 -4.24970E-07 -1.84969E-08 -2.30870E-08 M(26th) / C15 8.82192E-09 5.72679E-10 7.81176E-10 N(28th) / C16 0.00000E+00 -1.05947E-11 -1.57780E-11 O(30th) / C17 0.00000E+00 8.86349E-14 1.43797E-13
[0185] FIG. 59 is a graph for illustrating the relative illumination of the camera module (800) and / or lens assembly (LA) of FIG. 47 according to one embodiment of the present disclosure.
[0186] In FIG. 59, the graph labeled 'SI' illustrates the relative illumination in the alignment state of the lenses (L1, L2, L3, L4, L5, L6, L7) of FIG. 47, the graph labeled 'LI' illustrates the relative illumination in the alignment state of the lenses (L1, L2, L3, L4, L5, L6, L7) of FIG. 51, and the graph labeled 'MI' illustrates the relative illumination in the alignment state of the lenses (L1, L2, L3, L4, L5, L6, L7) of FIG. 55. Referring to FIG. 59, it can be seen that when a portion of the edge of the nth lens closest to the image sensor (I), for example, the 5th lens (L5) of FIG. 5 or the 7th lens (L7) of FIG. 47, is processed into a D-cut shape, the relative illumination of the periphery is somewhat reduced. In one embodiment, when the short side of the image sensor (I) and the short side of the D-cut lens (e.g., the side parallel to the first length (Ds) in FIG. 7) are aligned parallel to each other, the peripheral light intensity reduced by the D-cut process may not substantially affect the actual acquired image. For example, the camera module (800) according to the embodiment(s) of the present disclosure may be easy to miniaturize while providing good shooting performance.
[0187] FIG. 60 is a drawing showing a camera module (900) (e.g., camera modules (180, 280, 305, 312, 313, 400) of FIG. 1 to 5) and / or a lens assembly (LA) (e.g., lens assembly (LA) of FIG. 5) according to one embodiment of the present disclosure, and is a drawing for explaining an arrangement in a plane parallel to the optical axis (O) and the short side of an image sensor (I). FIG. 61 is a graph showing spherical aberration in the arrangement of FIG. 60 according to one embodiment of the present disclosure. FIG. 62 is a graph showing astigmatism in the arrangement of FIG. 60 according to one embodiment of the present disclosure. FIG. 63 is a graph showing distortion rate in the arrangement of FIG. 60 according to one embodiment of the present disclosure.
[0188] FIG. 60 may illustrate an arrangement of lenses (L1, L2, L3, L4, L5, L6, L7, L8) in a plane parallel to the optical axis (O) and the short side of the image sensor (I). For example, the eighth lens (L8) of FIG. 60 may be illustrated in a cross-section parallel to the first plane (SF) of FIG. 7.
[0189] FIG. 64 is a drawing showing the camera module (900) and / or lens assembly (LA) of FIG. 60, and is a drawing for explaining the arrangement in a plane parallel to the optical axis (O) and the long side of the image sensor (I). FIG. 65 is a graph showing spherical aberration in the arrangement of FIG. 64 according to one embodiment of the present disclosure. FIG. 66 is a graph showing astigmatism in the arrangement of FIG. 64 according to one embodiment of the present disclosure. FIG. 67 is a graph showing the distortion rate in the arrangement of FIG. 64 according to one embodiment of the present disclosure.
[0190] FIG. 64 may illustrate an arrangement of lenses (L1, L2, L3, L4, L5, L6, L7, L8) in a plane parallel to the optical axis (O) and the long side of the image sensor (I). For example, the eighth lens (L8) of FIG. 64 may be illustrated as substantially the same lens as the eighth lens (L8) of FIG. 60, with a cross-section parallel to the second plane (LF) of FIG. 7.
[0191] FIG. 68 is a drawing showing the camera module (900) and / or lens assembly (LA) of FIG. 60, and is a drawing for explaining the arrangement in a plane parallel to the optical axis (O) and the diagonal of the image sensor (I). FIG. 69 is a graph showing spherical aberration in the arrangement of FIG. 68 according to one embodiment of the present disclosure. FIG. 70 is a graph showing astigmatism in the arrangement of FIG. 68 according to one embodiment of the present disclosure. FIG. 71 is a graph showing the distortion rate in the arrangement of FIG. 68 according to one embodiment of the present disclosure.
[0192] FIG. 68 may illustrate an arrangement of lenses (L1, L2, L3, L4, L5, L6, L7, L8) in a plane parallel to the optical axis (O) and the diagonal of the image sensor (I). For example, the eighth lens (L8) of FIG. 68 may be illustrated as a lens substantially identical to the eighth lens (L8) of FIG. 60, with a cross-section parallel to the optical axis (O) and the diagonal of the image sensor (I).
[0193] The camera module (900) and / or its lens assembly (LA) of FIGS. 60 to 71 may include eight lenses (L1, L2, L3, L4, L5, L6, L7, L8) and may have a focal length of approximately 7.20 mm, an F-number of approximately 1.678, and an overall length (TTL) of approximately 8.998 mm. In one embodiment, the camera module (900) and / or its lens assembly (LA) may satisfy at least some of the above-described condition(s) including [Condition 1-4] and may be manufactured with the specifications exemplified in the following [Table 21], and the following [Tables 22], [Table 23], [Table 24], and [Table 25] may exemplify the aspherical coefficients of the lenses (L1, L2, L3, L4, L5, L6, L7, L8).
[0194] Lens surface (Surf) Radius of curvature Thickness Focal Length (EFL) Refractive index (nd) Abesu (vd) obj infinity infinity S1 infinity 0.00000 S2* 3.20119 1.09274 7.408 1.54401 55.99 S3* 13.46364 0.10000 S4* 9.07100 0.34500 -19.221 1.66075 20.38 S5* 5.23574 0.27996 S6* 19.22921 0.41685 48.121 1.54401 55.99 S7*(sto) 71.05154 0.33995 S8* -15.53064 0.52458 20.548 1.56717 37.4 S9* -6.76391 0.10000 S10* -23.53020 0.34978 -22.378 1.68042 18.15 S11* 45.0229 0.80000 S12* -107.17309 0.45778 -28.362 1.61444 25.94 S13* 21.07112 0.33495 S14* 3.13779 0.75093 9.034 1.56717 37.4 S15* 7.31862 1.38880 S16* 4.19645 0.46945 -7.81925 1.53485 55.74 S17* 2.01706 0.68335 S18 infinity 0.2625 infinity 1.5168 64.2 S19 infinity 0.35115 img infinity 5.00E-02
[0196] Lens surface (Surf) 2_ASP 3_ASP 4_ASP 5_ASP Radius of curvature 3.20119E+00 1.34636E+01 9.07100E+00 5.23574E+00 K(Conic) -4.21950E-01 1.65000E+01 9.42267E+00 1.70178E+00 A(4th) / C4 -7.83689E-03 1.04696E-02 5.23552E-03 4.37879E-03 B(6th) / C5 4.02763E-02 -2.67734E-02 -2.41126E-02 -3.91472E-02 C(8th) / C6 -9.33445E-02 4.55988E-02 4.60882E-02 1.36544E-01 D(10th) / C7 1.38306E-01 -5.25069E-02 -6.75158E-02 -3.38829E-01 E(12th) / C8 -1.38752E-01 3.90517E-02 7.16314E-02 5.70757E-01 F(14th) / C9 9.78491E-02 -1.70943E-02 -5.35789E-02 -6.62297E-01 G(16th) / C10 -4.95861E-02 2.61040E-03 2.82881E-02 5.41484E-01 H(18th) / C11 1.82497E-02 1.61330E-03 -1.05717E-02 -3.16559E-01 J(20th) / C12 -4.87921E-03 -1.22921E-03 2.77951E-03 1.32871E-01 K(22th) / C13 9.37038E-04 4.14331E-04 -5.03204E-04 -3.97087E-02 L(24th) / C14 -1.25844E-04 -8.36188E-05 5.98381E-05 8.24291E-03 M(26th) / C15 1.12115E-05 1.03753E-05 -4.23199E-06 -1.12913E-03 N(28th) / C16 -5.94910E-07 -7.33565E-07 1.38631E-07 9.17354E-05 O(30th) / C17 1.42237E-08 2.27170E-08 -4.18001E-10 -3.34669E-06
[0198] Lens surface (Surf) 6_ASP 7_ASP 8_ASP 9_ASP Radius of curvature 1.92292E+01 7.10515E+01 -1.55306E+01 -6.76391E+00 K(Conic) 8.13038E+01 -1.00000E+00 5.49887E+01 2.37077E+00 A(4th) / C4 7.84818E-03 -1.33827E-02 -7.20289E-03 2.25803E-02 B(6th) / C5 -8.04233E-02 6.83816E-02 4.00255E-02 -9.82490E-02 C(8th) / C6 2.66186E-01 -2.81634E-01 -1.95794E-01 2.90342E-01 D(10th) / C7 -5.74228E-01 7.04938E-01 5.52869E-01 -6.10144E-01 E(12th) / C8 8.41097E-01 -1.17139E+00 -1.03975E+00 8.91689E-01 F(14th) / C9 -8.67688E-01 1.34950E+00 1.36162E+00 -9.27003E-01 G(16th) / C10 6.44750E-01 -1.10591E+00 -1.27193E+00 6.97316E-01 H(18th) / C11 -3.48733E-01 6.53458E-01 8.57303E-01 -3.82569E-01 J(20th) / C12 1.37288E-01 -2.79097E-01 -4.17333E-01 1.52859E-01 K(22th) / C13 -3.88813E-02 8.53509E-02 1.45200E-01 -4.39324E-02 L(24th) / C14 7.70846E-03 -1.82183E-02 -3.51801E-02 8.83456E-03 M(26th) / C15 -1.01437E-03 2.57738E-03 5.63504E-03 -1.17846E-03 N(28th) / C16 7.95155E-05 -2.17138E-04 -5.36121E-04 9.35802E-05 O(30th) / C17 -2.80793E-06 8.24550E-06 2.29322E-05 -3.34558E-06
[0200] 렌즈면(Surf) 10_ASP 11_ASP 12_ASP 13_ASP 곡률반경(Radius) -2.35302E+01 4.50229E+01 -1.07173E+02 2.10711E+01 K(Conic) -1.00000E+00 -1.00000E+00 -1.00000E+00 -1.92429E+01 A(4th) / C4 -1.18183E-03 -1.59038E-02 -2.01700E-02 -5.65766E-02 B(6th) / C5 -1.83331E-02 1.37511E-02 1.59679E-02 4.09445E-02 C(8th) / C6 1.39306E-03 -3.53315E-02 -1.93456E-02 -4.01994E-02 D(10th) / C7 5.68218E-02 5.60273E-02 1.91596E-02 3.16355E-02 E(12th) / C8 -1.37896E-01 -5.94289E-02 -1.36399E-02 -1.77823E-02 F(14th) / C9 1.80663E-01 4.40679E-02 6.86143E-03 7.14483E-03 G(16th) / C10 -1.53737E-01 -2.34197E-02 -2.46477E-03 -2.07966E-03 H(18th) / C11 9.00559E-02 9.02499E-03 6.36408E-04 4.41761E-04 J(20th) / C12 -3.70636E-02 -2.52315E-03 -1.17899E-04 -6.83865E-05 K(22th) / C13 1.07089E-02 5.06027E-04 1.54739E-05 7.62106E-06 L(24th) / C14 -2.12776E-03 -7.08670E-05 -1.39898E-06 -5.94692E-07 M(26th) / C15 2.76855E-04 6.57337E-06 8.25394E-08 3.07951E-08 N(28th) / C16 -2.12364E-05 -3.62548E-07 -2.84886E-09 -9.49241E-10 O(30th) / C17 7.27806E-07 8.99403E-09 4.34220E-11 1.31644E-11
[0202] 렌즈면(Surf) 14_ASP 15_ASP 16_ASP 17_ASP 곡률반경(Radius) 3.13779E+00 7.31862E+00 4.19645E+00 2.01706E+00 K(Conic) -1.29247E+01 -4.53628E-01 -1.08104E+01 -5.77771E+00 A(4th) / C4 1.97808E-02 8.88469E-03 -9.06163E-02 -4.66374E-02 B(6th) / C5 -1.23921E-02 -3.45219E-04 3.10223E-02 1.45349E-02 C(8th) / C6 4.19186E-03 -2.37916E-03 -8.09499E-03 -3.42300E-03 D(10th) / C7 -1.35865E-03 1.06752E-03 1.51511E-03 5.83892E-04 E(12th) / C8 3.81901E-04 -2.61605E-04 -1.96236E-04 -7.36567E-05 F(14th) / C9 -8.28403E-05 4.28388E-05 1.77265E-05 7.03122E-06 G(16th) / C10 1.30520E-05 -4.97871E-06 -1.13157E-06 -5.13774E-07 H(18th) / C11 -1.45793E-06 4.17640E-07 5.12418E-08 2.86865E-08 J(20th) / C12 1.13444E-07 -2.50902E-08 -1.62553E-09 -1.20744E-09 K(22th) / C13 -5.98302E-09 1.04558E-09 3.47122E-11 3.73965E-11 L(24th) / C14 2.03484E-10 -2.81978E-11 -4.50924E-13 -8.21096E-13 M(26th) / C15 -4.05242E-12 4.18747E-13 2.49179E-15 1.20342E-14 N(28th) / C16 3.78304E-14 -1.73760E-15 1.15358E-17 -1.05204E-16 O(30th) / C17 -6.58644E-17 -2.06585E-17 -1.72192E-19 4.13829E-19
[0204] FIG. 72 is a graph for illustrating the relative illumination of the camera module (900) and / or lens assembly (LA) of FIG. 60 according to one embodiment of the present disclosure.
[0205] In FIG. 72, the graph labeled 'SI' illustrates the relative illumination in the alignment state of the lenses (L1, L2, L3, L4, L5, L6, L7, L8) of FIG. 60, the graph labeled 'LI' illustrates the relative illumination in the alignment state of the lenses (L1, L2, L3, L4, L5, L6, L7, L8) of FIG. 64, and the graph labeled 'MI' illustrates the relative illumination in the alignment state of the lenses (L1, L2, L3, L4, L5, L6, L7, L8) of FIG. 68. Referring to FIG. 72, it can be seen that when a portion of the edge of the nth lens closest to the image sensor (I), for example, the 5th lens (L5) of FIG. 5 or the 8th lens (L8) of FIG. 72, is processed into a D-cut shape, the relative illumination of the periphery is somewhat reduced. In one embodiment, when the short side of the image sensor (I) and the short side of the D-cut lens (e.g., the side parallel to the first length (Ds) in FIG. 7) are aligned parallel to each other, the peripheral light intensity reduced by the D-cut process may not substantially affect the actual acquired image. For example, the camera module (900) according to the embodiment(s) of the present disclosure may be easy to miniaturize while providing good shooting performance.
[0207] As described above, a camera module according to the embodiment(s) of the present disclosure (e.g., the camera module of FIGS. 1 to 5 and / or FIGS. 8 (180, 280, 305, 312, 313, 400, 500)) and / or an electronic device including the same (e.g., the electronic device of FIGS. 1 to 4 (101, 102, 104, 300)) may be easily miniaturized by processing at least one edge of the lenses into a D-cut shape (e.g., the first plane (SF) or the second plane (LF) of FIG. 7) while having an angle of view of approximately 70 degrees or more and approximately 95 degrees or less. In one embodiment, the edge of the lens processed into a D-cut shape may be aligned parallel to the short side or the long side of the image sensor so as to suppress the degradation of the quality of the captured image. For example, a camera module according to the embodiment(s) of the present disclosure and / or an electronic device including the same can be easily miniaturized while providing good optical performance (e.g., wide-angle characteristics).
[0208] The effects obtainable from the present disclosure are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art to which the present disclosure belongs from the description of the above-described embodiment(s).
[0210] According to one embodiment of the present disclosure, a camera module (e.g., camera module of FIGS. 1 to 5 and / or FIGS. 8 (180, 280, 305, 312, 313, 400, 500)) may include an image sensor (e.g., image sensor (I) of FIGS. 5 and / or FIGS. 8)) and a lens assembly (e.g., lens assembly (LA) of FIGS. 5 and / or FIGS. 8) configured to focus or guide light incident from outside the camera module to the image sensor. In one embodiment, the lens assembly may include a plurality of lenses (e.g., lenses (L1, L2, L3, L4, L5, L6, L7, L8) of FIGS. 5 and / or FIGS. 8) sequentially aligned along an optical axis (e.g., optical axis (O) of FIGS. 5 and / or FIGS. 8). In one embodiment, the nth lens (wherein 'n' is a natural number greater than or equal to 2) among the plurality of lenses closest to the image sensor (e.g., the fifth lens (L5) of FIG. 5 or the eighth lens (L8) of FIG. 8) may include four sides (e.g., the first plane (SF) or the second plane (LF) of FIG. 7) corresponding to four sides of the image sensor. In one embodiment, the lens assembly may satisfy the following [Condition 1; Ds ≤ Dl < Dm] while having a field of view of 70 degrees or more and 95 degrees or less. Here, 'Ds' may be the length of the nth lens measured parallel to the shortest side of the image sensor, 'Dl' may be the length of the nth lens measured parallel to the longest side of the image sensor, and 'Dm' may be the length of the nth lens measured parallel to the diagonal of the image sensor.
[0211] According to one embodiment of the present disclosure, a camera module (e.g., camera module of FIGS. 1 to 5 and / or FIGS. 8 (180, 280, 305, 312, 313, 400, 500)) may include an image sensor (e.g., image sensor (I) of FIGS. 5 and / or FIGS. 8)) and a lens assembly (e.g., lens assembly (LA) of FIGS. 5 and / or FIGS. 8) configured to focus or guide light incident from outside the camera module to the image sensor. In one embodiment, the lens assembly may include a plurality of lenses (e.g., lenses (L1, L2, L3, L4, L5, L6, L7, L8) of FIG. 5 and / or FIG. 8) sequentially aligned along an optical axis (e.g., optical axis (O) of FIG. 5 and / or FIG. 8), and a light guide frame (e.g., light guide frame (OC) of FIG. 5 and / or FIG. 8) disposed between the first lens (e.g., first lens (L1) of FIG. 5 and / or FIG. 8) among the plurality of lenses that is furthest from the image sensor and the image sensor. In one embodiment, the nth lens (wherein 'n' is a natural number greater than or equal to 2) among the plurality of lenses closest to the image sensor (e.g., the fifth lens (L5) of FIG. 5 or the eighth lens (L8) of FIG. 8) may include four sides (e.g., the first plane (SF) or the second plane (LF) of FIG. 7) corresponding to four sides of the image sensor. In one embodiment, the lens assembly may satisfy the following [Condition 1; Ds ≤ Dl < Dm] while having a field of view of 70 degrees or more and 95 degrees or less. Here, 'Ds' may be the length of the nth lens measured parallel to the shortest side of the image sensor, 'Dl' may be the length of the nth lens measured parallel to the longest side of the image sensor, and 'Dm' may be the length of the nth lens measured parallel to the diagonal of the image sensor.
[0212] According to one embodiment, the object-side surface of the first lens (e.g., the surface indicated as 'S2' in FIG. 8) is convex, and the sensor-side surface of the nth lens (e.g., the surface indicated as 'S17' in FIG. 8) may include an inflection point (e.g., the inflection point (IP) in FIG. 8).
[0213] According to one embodiment, the sensor side of the n-th lens includes an inflection point, and Ds may be greater than twice the distance from the point where the optical axis intersects the sensor side of the n-th lens to the inflection point.
[0214] According to one embodiment, the lens assembly may satisfy the following [Condition 2; 2 =< LD1 / LDn =< 2.8]. In one embodiment, 'LD1' may be the effective diameter of the first lens, and 'LDn' may be the effective diameter of the nth lens.
[0215] According to one embodiment, the lens assembly may satisfy the following [Condition 3; EFL / Fno < Ds < IMH]. In one embodiment, 'EFL' is the focal length of the lens assembly, 'Fno' is the F-number of the lens assembly, and 'IMH' may be the diagonal length of the image sensor.
[0216] According to one embodiment, the lens assembly may satisfy the following [Condition 4; 0.425 =< EFL / IMH =< 0.525]. In one embodiment, 'EFL' may be the focal length of the lens assembly, and 'IMH' may be the diagonal length of the image sensor.
[0217] According to one embodiment, the camera module and / or lens assembly described above may further include a light guide frame (e.g., a light guide frame (OC) of FIG. 5 and / or FIG. 8) disposed between the first lens (e.g., the first lens (L1) of FIG. 5 and / or FIG. 8) which is furthest from the image sensor among the plurality of lenses and the image sensor.
[0218] According to one embodiment, the light guide frame may be positioned to face directly the object side surface of the nth lens.
[0219] According to one embodiment, the light guide frame may be configured to provide a rectangular light guide area (e.g., the light guide area (TA) of FIG. 7) having a short side corresponding to Ds and a long side corresponding to Dl.
[0220] According to one embodiment of the present disclosure, a camera module (e.g., camera module of FIGS. 1 to 5 and / or FIGS. 8 (180, 280, 305, 312, 313, 400, 500)) may include a lens assembly (e.g., lens assembly of FIGS. 5 and / or FIGS. 8 (LA)) configured to focus or guide light incident from outside the camera module to the image sensor using a plurality of lenses (e.g., lenses of FIGS. 5 and / or FIGS. 8 (L1, L2, L3, L4, L5, L6, L7, L8)) sequentially aligned along an image sensor (e.g., image sensor of FIGS. 5 and / or FIGS. 8 (I)) and an optical axis (e.g., optical axis of FIGS. 5 and / or FIGS. 8 (O)). In one embodiment, the lens assembly may include a first lens (e.g., the first lens (L1) of FIG. 5 and / or FIG. 8) among the plurality of lenses that is furthest from the image sensor and an optical guide frame (e.g., the optical guide frame (OC) of FIG. 5 and / or FIG. 8) disposed between the first lens (e.g., the first lens (SF) or the second lens (LF) of FIG. 7)) among the plurality of lenses that is closest to the image sensor may include four sides (e.g., the first plane (SF) or the second plane (LF) of FIG. 7) corresponding to four sides of the image sensor. In one embodiment, the lens assembly may satisfy the following [Condition 3; EFL / Fno < Ds < IMH]. In one embodiment, 'EFL' is the focal length of the lens assembly, 'Fno' is the F-number of the lens assembly, 'Ds' is the length of the nth lens measured parallel to the shortest side of the image sensor, and 'IMH' may be the diagonal length of the image sensor.
[0221] According to one embodiment, the object-side surface of the first lens (e.g., the surface indicated as 'S2' in FIG. 8) is convex, and the sensor-side surface of the n-th lens (e.g., the surface indicated as 'S17' in FIG. 8) may include an inflection point (e.g., the inflection point (IP) in FIG. 8). In one embodiment, Ds may be greater than twice the distance from the point where the optical axis intersects the sensor-side surface of the n-th lens to the inflection point.
[0222] According to one embodiment, the lens assembly may satisfy the following [Condition 2; 2 =< LD1 / LDn =< 2.8]. In one embodiment, 'LD1' may be the effective diameter of the first lens, and 'LDn' may be the effective diameter of the nth lens.
[0223] According to one embodiment, the lens assembly may satisfy the following [Condition 4; 0.425 =< EFL / IMH =< 0.525]. In one embodiment, 'EFL' may be the focal length of the lens assembly, and 'IMH' may be the diagonal length of the image sensor.
[0224] According to one embodiment, the light guide frame may be positioned to face directly the object side surface of the nth lens.
[0225] According to one embodiment, the light guide frame may be configured to provide a rectangular light guide area (e.g., the light guide area (TA) of FIG. 7) having a short side corresponding to Ds and a long side corresponding to the length of the nth lens measured parallel to the longest side of the image sensor.
[0226] According to one embodiment of the present disclosure, an electronic device (e.g., electronic device of FIGS. 1 to 4 (101, 102, 104, 300)) comprises a camera module (e.g., camera module of FIGS. 1 to 5 and / or 8 (180, 280, 305, 312, 313, 400, 500)) comprising an image sensor (e.g., image sensor (I) of FIGS. 5 and / or 8) and a lens assembly (e.g., lens assembly (LA) of FIGS. 5 and / or 8)) configured to focus or guide light incident from outside the electronic device to the image sensor by including a plurality of lenses (e.g., lenses (L1, L2, L3, L4, L5, L6, L7, L8) of FIGS. 5 and / or 8)) arranged sequentially along an optical axis, at least one processor (e.g., processor (120) of FIG. 1), and the at least one processor When executed, the electronic device may include a memory (e.g., memory (130) of FIG. 1) that stores a command to cause the electronic device to acquire an image of a subject using the image sensor. In one embodiment, the nth lens (where 'n' is a natural number greater than or equal to 2) among the plurality of lenses closest to the image sensor may include four sides (e.g., the first plane (SF) or the second plane (LF) of FIG. 7) corresponding to four sides of the image sensor, and the lens assembly may satisfy the following [Condition 3; EFL / Fno < Ds < IMH]. Here, 'EFL' is the focal length of the lens assembly, 'Fno' is the F-number of the lens assembly, 'Ds' is the length of the nth lens measured parallel to the shortest side of the image sensor, and 'IMH' may be the diagonal length of the image sensor.
[0227] According to one embodiment, the lens assembly may satisfy the following [Condition 2; 2 =< LD1 / LDn =< 2.8]. Here, 'LD1' is the effective diameter of the first lens furthest from the image sensor among the plurality of lenses, and 'LDn' may be the effective diameter of the nth lens.
[0228] According to one embodiment, the lens assembly may satisfy the following [Condition 4; 0.425 =< EFL / IMH =< 0.525]. Here, 'EFL' is the focal length of the lens assembly, and 'IMH' may be the diagonal length of the image sensor.
[0229] According to one embodiment, the object-side surface of the first lens, which is furthest from the image sensor among the plurality of lenses, is convex, and the sensor-side surface of the nth lens may include an inflection point. In one embodiment, Ds may be greater than twice the distance from the point where the optical axis intersects the sensor-side surface of the nth lens to the inflection point.
[0230] According to one embodiment, the lens assembly may further include a light guide frame (e.g., the light guide frame (OC) of FIG. 5 and / or FIG. 8) positioned to face directly with the object side surface of the nth lens.
[0231] According to one embodiment, the light guide frame may be configured to provide a rectangular light guide area (e.g., the light guide area (TA) of FIG. 7) having a short side corresponding to Ds and a long side corresponding to the length of the nth lens measured parallel to the longest side of the image sensor.
[0233] Although the present disclosure has been described by way of example with respect to one embodiment, it should be understood that the embodiment is for illustrative purposes only and is not intended to limit the present disclosure. It will be obvious to those skilled in the art that various changes in form and detailed configuration may be made without departing from the whole context of the present disclosure, including the appended claims and their equivalents. Explanation of the symbols
[0234] 101, 102, 104, 300: Electronic devices 120: Processor 180, 280, 305, 312, 313, 400, 500, 600, 700, 800, 900: Camera Module LA: Lens assembly 230, I: Image sensor L1, L2, L3, L4, L5, L6, L7, L8: Lens(s) 260: Image signal processor F: Infrared cut-off filter OC: Optical guide frame
Claims
Claim 1 In a camera module (180; 280; 305; 312; 313; 400; 500; 600; 700; 800; 900), an image sensor (I); A lens assembly (LA) configured to focus or guide light incident from outside the camera module to the image sensor by including a plurality of lenses (L1, L2, L3, L4, L5, L6, L7, L8) sequentially aligned along an optical axis (O); the nth lens (where 'n' is a natural number greater than or equal to 2) among the plurality of lenses closest to the image sensor includes four sides (SF, LF) corresponding to four sides of the image sensor; and the lens assembly is a camera module satisfying the following [Condition 1] while having a field of view of 70 degrees or more and 95 degrees or less, [Condition 1] Ds ≤ Dl < Dm where 'Ds' is the length of the nth lens measured parallel to the shortest side of the image sensor, 'Dl' is the length of the nth lens measured parallel to the longest side of the image sensor, and 'Dm' is parallel to the diagonal of the image sensor The length of the nth lens measured above. Claim 2 A camera module according to claim 1, wherein the object-side surface of the first lens is convex, and the sensor-side surface of the nth lens includes an inflection point (IP). Claim 3 A camera module according to any one of claims 1 to 2, wherein the sensor side surface of the n-th lens includes an inflection point (IP), and Ds is greater than twice the distance from the point where the optical axis intersects the sensor side surface of the n-th lens to the inflection point. Claim 4 In any one of claims 1 to 3, the lens assembly is a camera module satisfying the following [Condition 2], [Condition 2]2 =< LD1 / LDn =< 2.8 where 'LD1' is the effective diameter of the first lens and 'LDn' is the effective diameter of the nth lens. Claim 5 In any one of claims 1 to 4, the lens assembly is a camera module satisfying the following [Condition 3], [Condition 3] EFL / Fno < Ds < IMH, where 'EFL' is the focal length of the lens assembly, 'Fno' is the F-number of the lens assembly, and 'IMH' is the diagonal length of the image sensor. Claim 6 In any one of claims 1 to 5, the lens assembly is a camera module satisfying the following [Condition 4], [Condition 4] 0.425 =< EFL / IMH =< 0.525 where 'EFL' is the focal length of the lens assembly and 'IMH' is the diagonal length of the image sensor. Claim 7 A camera module according to any one of claims 1 to 6, further comprising a light guide frame (OC) disposed between the first lens (L1) furthest from the image sensor among the plurality of lenses and the image sensor, wherein the light guide frame is disposed to face directly the object side surface of the nth lens. Claim 8 In claim 7, the light guide frame is a camera module configured to provide a rectangular light guide area (TA) having a short side corresponding to Ds and a long side corresponding to Dl. Claim 9 In a camera module (180; 280; 305; 312; 313; 400; 500; 600; 700; 800; 900), an image sensor (I); A lens assembly (LA) configured to focus or guide light incident from outside the camera module to the image sensor by including a plurality of lenses (L1, L2, L3, L4, L5, L6, L7, L8) sequentially aligned along an optical axis (O), and a light guide frame (OC) disposed between the first lens (L1), which is the furthest from the image sensor among the plurality of lenses, and the image sensor; wherein the nth lens (where 'n' is a natural number greater than or equal to 2) among the plurality of lenses closest to the image sensor includes four sides (SF, LF) corresponding to four sides of the image sensor; and the lens assembly is a camera module satisfying the following [Condition 3], [Condition 3] EFL / Fno < Ds < IMH, where 'EFL' is the focal length of the lens assembly, 'Fno' is the F-number of the lens assembly, and 'Ds' is the nth lens measured parallel to the shortest side of the image sensor. It is the length, and 'IMH' is the diagonal length of the image sensor above. Claim 10 A camera module according to claim 9, wherein the object-side surface of the first lens is convex, the sensor-side surface of the nth lens includes an inflection point (IP), and Ds is greater than twice the distance from the point where the optical axis intersects the sensor-side surface of the nth lens to the inflection point. Claim 11 In any one of claims 9 to 10, the lens assembly is a camera module satisfying the following [Condition 2], [Condition 2]2 =< LD1 / LDn =< 2.8 where 'LD1' is the effective diameter of the first lens and 'LDn' is the effective diameter of the nth lens. Claim 12 In any one of claims 9 to 11, the lens assembly is a camera module satisfying the following [Condition 4], [Condition 4] 0.425 =< EFL / IMH =< 0.525, where 'EFL' is the focal length of the lens assembly and 'IMH' is the diagonal length of the image sensor. Claim 13 In any one of claims 9 to 12, the light guide frame is a camera module positioned to face directly the object side of the nth lens. Claim 14 A camera module configured such that, in any one of claims 9 to 13, the light guide frame provides a rectangular light guide area (TA) having a short side corresponding to Ds and a long side corresponding to the length of the nth lens measured parallel to the longest side of the image sensor. Claim 15 In an electronic device (101; 102; 104; 300), a camera module (180; 280; 305; 312; 313; 400; 500; 600; 700; 800; 900) comprising an image sensor (I) and a lens assembly (LA) configured to focus or guide light incident from outside the electronic device to the image sensor by including a plurality of lenses (L1, L2, L3, L4, L5, L6, L7, L8) sequentially aligned along an optical axis (O); at least one processor (120); The device includes a memory (130) that stores a command to cause the electronic device to acquire an image of a subject using the image sensor when executed by at least one processor, wherein the nth lens (wherein 'n' is a natural number greater than or equal to 2) among the plurality of lenses closest to the image sensor includes four sides corresponding to four sides of the image sensor, and the lens assembly is an electronic device satisfying the following [Condition 3], [Condition 3] EFL / Fno < Ds < IMH, where 'EFL' is the focal length of the lens assembly, 'Fno' is the F-number of the lens assembly, 'Ds' is the length of the nth lens measured parallel to the shortest side of the image sensor, and 'IMH' is the diagonal length of the image sensor. Claim 16 In claim 15, the lens assembly is an electronic device satisfying the following [Equation 2], [Equation 2]2 =< LD1 / LDn =< 2.8 where 'LD1' is the effective diameter of the first lens furthest from the image sensor among the plurality of lenses, and 'LDn' is the effective diameter of the nth lens. Claim 17 In any one of claims 15 to 16, the lens assembly is an electronic device satisfying the following [Condition 4], [Condition 4] 0.425 =< EFL / IMH =< 0.525 where 'EFL' is the focal length of the lens assembly and 'IMH' is the diagonal length of the image sensor. Claim 18 An electronic device according to any one of claims 15 to 17, wherein the object-side surface of the first lens furthest from the image sensor among the plurality of lenses is convex, the sensor-side surface of the nth lens includes an inflection point (IP), and Ds is greater than twice the distance from the point where the optical axis intersects the sensor-side surface of the nth lens to the inflection point. Claim 19 An electronic device according to any one of claims 15 to 18, wherein the lens assembly further comprises a light guide frame (OC) positioned to face directly to the object side of the nth lens. Claim 20 An electronic device according to claim 19, wherein the light guide frame is configured to provide a rectangular light guide area (TA) having a short side corresponding to Ds and a long side corresponding to the length of the nth lens measured parallel to the longest side of the image sensor.
