Camera module and electronic device comprising camera module
The camera module design addresses focus and shake issues by employing a carrier-based system with magnets and coils for improved autofocus and optical image stabilization, enhancing image capture performance.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SAMSUNG ELECTRONICS CO LTD
- Filing Date
- 2025-10-01
- Publication Date
- 2026-04-23
AI Technical Summary
Existing camera modules in electronic devices face challenges in effectively adjusting focus and correcting shake during image capture, particularly due to the limitations of electromagnetic force-based autofocus and optical image stabilizer functions.
A camera module design incorporating a lens assembly with a first and second carrier, a bearing ball, and a yoke and driving magnets to guide movement perpendicular to the optical axis, utilizing electromagnetic forces for autofocus and optical image stabilization.
Enhances focus adjustment and shake correction capabilities, improving image quality by allowing precise lens movement and stabilization through a novel carrier and magnet-coil interaction.
Smart Images

Figure KR2025015714_23042026_PF_FP_ABST
Abstract
Description
Camera module and electronic device including the camera module
[0001] The various embodiments disclosed in this document relate to a camera module and an electronic device including a camera module.
[0002] Various electronic devices such as smartphones, tablet PCs, portable multimedia players (PMPs), personal digital assistants (PDAs), laptop personal computers, wristwatches, and wearable devices like head-mounted displays (HMDs) include cameras and can take images using the cameras.
[0003] As the number of users taking photos or videos using electronic devices increases, the performance of cameras included in these devices is also improving. For example, when capturing images using a camera included in an electronic device, it may be necessary to adjust the focus of the subject or correct for shaking (e.g., hand shake) that may occur during shooting in order to obtain a sharp image.
[0004] A camera module used in an electronic device may include an autofocus (AF) function that automatically adjusts the lens focus on a subject and / or an optical image stabilizer (OIS) function that corrects shake occurring in the camera module when shooting a subject. The AF function and the optical image stabilizer function of the camera module may be driven based on electromagnetic force using magnets and coils.
[0005] The information described above may be provided as related art for the purpose of aiding understanding of the present disclosure. No claim or determination is made as to whether any of the foregoing may be applied as prior art related to the present disclosure.
[0006] According to one embodiment of the present disclosure, a camera module may include a lens assembly comprising one or more lenses substantially aligned along an optical axis. The camera module may include a first carrier that accommodates at least a portion of the lens assembly. The camera module may include a second carrier that accommodates the first carrier. The camera module may include a camera housing comprising a support surface on which the second carrier is disposed and a side substantially perpendicular to the support surface. The camera module may include a bearing ball disposed between the support surface of the camera housing and the second carrier and guiding movement of the second carrier in a direction perpendicular to the optical axis relative to the camera housing. The camera module may include a plurality of driving magnets disposed on the second carrier and orthogonal to each other when viewed from above in the direction of the optical axis. The camera module may include a yoke disposed on the camera housing and which overlaps with the ends of the plurality of driving magnets when viewed from above in the direction of the optical axis.
[0007] According to one embodiment of the present disclosure, a camera module may include a camera housing. The camera module may include a lens assembly comprising one or more lenses substantially aligned along an optical axis. The camera module may include a first carrier disposed in the camera housing, comprising a support surface and a side perpendicular to the support surface, and moving along the optical axis relative to the camera housing. The camera module may include a second carrier that accommodates the lens assembly, is disposed in the first carrier, and moves in a direction perpendicular to the optical axis relative to the first carrier. The camera module may include a bearing ball disposed between the support surface of the first carrier and the second carrier and guiding the movement of the second carrier relative to the first carrier. The camera module may include a plurality of driving magnets, at least a portion of which face the side of the first carrier and which are orthogonal to each other when viewed from above in the direction of the optical axis. The camera module may include a yoke that is disposed on the support surface of the first carrier and overlaps with the ends of a plurality of driving magnets when the camera module is viewed from above in the direction of the optical axis.
[0008] In relation to the description of the drawings, the same or similar reference numerals may be used for identical or similar components.
[0009] FIG. 1 is a block diagram of an electronic device in a network environment according to various embodiments of the present disclosure.
[0010] FIG. 2 is a block diagram illustrating a camera module according to various embodiments.
[0011] FIG. 3a is a perspective view of a camera module according to one embodiment of the present disclosure.
[0012] FIG. 3b is a top view of a lens assembly of a camera module according to one embodiment of the present disclosure.
[0013] FIG. 4 is a combined perspective view of the camera module shown in FIG. 3a and FIG. 3b according to one embodiment of the present disclosure.
[0014] Figure 5a is a cross-sectional view taken along the line 5a-5a of Figure 3b.
[0015] Figure 5b is a drawing of the state in which the OIS coil has been removed from Figure 5a.
[0016] FIG. 6a is a drawing in which the end of a driving magnet and a yoke are arranged in an overlapping manner according to one embodiment of the present disclosure.
[0017] FIG. 6b is a diagram illustrating the arrangement relationship of a driving magnet, an OIS coil, and a yoke according to one embodiment of the present disclosure.
[0018] FIG. 7a is a drawing in which a yoke is disposed at the corner portion of a camera housing according to one embodiment of the present disclosure.
[0019] Figure 7b is a cross-sectional view taken along the line 7b-7b of Figure 7a.
[0020] FIG. 7c is a drawing of various shapes of a yoke that overlaps at least a portion with a driving magnet according to one embodiment of the present disclosure.
[0021] FIG. 8a is a drawing in which at least a portion of a yoke is disposed in a guide groove formed in a camera housing according to one embodiment of the present disclosure.
[0022] Figure 8b is a cross-sectional view taken along the line 8b-8b of Figure 8a.
[0023] FIG. 8c is a drawing of various shapes of a yoke according to one embodiment of the present disclosure, in which at least a portion overlaps with a driving magnet and a portion is placed in a guide groove of a camera housing.
[0024] FIG. 9 is a drawing according to one embodiment of the present disclosure in which a yoke is arranged to overlap with each end of a plurality of mutually orthogonal driving magnets.
[0025] FIG. 10a is a drawing in which a first spring member is disposed on a camera housing, a first carrier, and a second carrier according to one embodiment of the present disclosure.
[0026] FIG. 10b is a combined perspective view of the first spring member, camera housing, and second carrier of FIG. 10a.
[0027] FIG. 11 is a drawing in which a first spring member is coupled to a first coupling portion of a camera housing according to one embodiment of the present disclosure.
[0028] FIG. 12a is a drawing illustrating the step difference between the first surface and the second surface of the second coupling portion of the second carrier according to one embodiment of the present disclosure.
[0029] FIG. 12b is a drawing in which a first spring member is coupled to a second coupling portion of a second carrier according to one embodiment of the present disclosure.
[0030] Figure 13 is a cross-sectional view taken along line 13-13 of Figure 3b.
[0031] FIG. 14 is a cross-sectional view taken along line 14-14 of FIG. 10a according to one embodiment of the present disclosure.
[0032] FIG. 15a is a rear view of a camera module according to one embodiment of the present disclosure.
[0033] Figure 15b is a cross-sectional view taken along the line 15b-15b of Figure 15a.
[0034] FIGS. 16a and FIGS. 16b are drawings illustrating the arrangement relationship between a driving magnet and a yoke according to one embodiment of the present disclosure.
[0035] FIG. 1 is a block diagram of an electronic device (101) in a network environment (100) according to one embodiment. 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 with 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 some embodiments, 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 some embodiments, 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)).
[0036] 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)), 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.
[0037] 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 is performed, 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.
[0038] 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).
[0039] 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).
[0040] 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).
[0041] 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.
[0042] 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.
[0043] 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) connected directly or wirelessly to the electronic device (101).
[0044] 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.
[0045] 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.
[0046] 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).
[0047] The haptic module (179) can convert an electrical signal into a mechanical stimulus (e.g., vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic senses. According to one embodiment, the haptic module (179) may include, for example, a motor, a piezoelectric element, or an electric stimulation device.
[0048] 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.
[0049] The power management module (188) can manage the 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).
[0050] 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.
[0051] 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 (104) 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).
[0052] 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 in the electronic device (101), external electronic device (e.g., electronic device (104)), or network system (e.g., second network (199)). According to one embodiment, the wireless communication module (192) can support a Peak data rate (e.g., 20 Gbps or more) for realizing eMBB, loss coverage (e.g., 164 dB or less) for realizing mMTC, 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 realizing URLLC.
[0053] 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 (197) 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). A signal or power may be transmitted or received between the communication module (190) and an external electronic device through the selected at least one antenna. According to some embodiments, 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).
[0054] 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.
[0055] 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.
[0056] 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 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 a 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.
[0057] FIG. 2 is a block diagram illustrating a camera module (180) according to various embodiments. Referring to FIG. 2, the camera module (180) 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). 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 (180) may include a plurality of lens assemblies (210). In this case, the camera module (180) 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 other lens assemblies. The lens assemblies (210) may include, for example, a wide-angle lens or a telephoto lens.
[0058] 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 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) can be implemented using, for example, a CCD (charged coupled device) sensor or a CMOS (complementary metal oxide semiconductor) sensor.
[0059] The image stabilizer (240) can 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 (180) or the electronic device (101) including it. This allows at least some of the image shake caused by the movement to be compensated for in the image being captured. According to one embodiment, the image stabilizer (240) can detect such movement of the camera module (180) or the electronic device (101) using a gyroscope sensor (not shown) or an accelerometer sensor (not shown) placed inside or outside the camera module (180). The memory (250) can temporarily store at least some of the 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 memory (250), and the corresponding copy image (e.g., a low-resolution image) can be previewed through the display module (160). Subsequently, when a specified condition is satisfied (e.g., user input or system command), at least a portion of the original image stored in memory (250) can be acquired and processed by, for example, an image signal processor (260). According to one embodiment, memory (250) may be configured as at least a portion of memory (130) or as a separate memory that operates independently thereof.
[0060] 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 (180) (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 (180) (e.g., memory (130), display module (160), electronic device (102), electronic device (104), or server (108)). According to one embodiment, the image signal processor (260) is at least part of the processor (120). It may be configured 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).
[0061] According to one embodiment, the electronic device (101) may include a plurality of camera modules (180), each having different attributes (e.g., angle of view) or functions. In this case, for example, the plurality of camera modules (180) may include at least one of a wide-angle camera, a telephoto camera, or an IR camera (time of flight camera, structured light camera). For example, a plurality of camera modules may be configured, each including a lens having a different angle of view, and the electronic device may be controlled to change the angle of view by varying according to the user's selection. According to one embodiment, at least one of the plurality of camera modules (180) may be a front camera and at least another may be a rear camera.
[0062] FIG. 3a is a perspective view of a camera module according to one embodiment of the present disclosure. FIG. 3b is a top view of a lens assembly of a camera module according to one embodiment of the present disclosure. FIG. 4 is a combined perspective view of the camera module shown in FIG. 3a and FIG. 3b according to one embodiment of the present disclosure. FIG. 5a is a cross-sectional view taken along the line 5a-5a of FIG. 3b. FIG. 5b is a view of FIG. 5a with the OIS coil removed.
[0063] According to one embodiment of the present disclosure, as illustrated in FIG. 3a, 3b and 4, a camera module (300) (e.g., camera module (180) of FIG. 1) comprises a lens assembly (310) (e.g., lens assembly, lens assembly (210) of FIG. 2), a shield can (320), a first carrier (330) (e.g., autofocus (AF) carrier, first housing or autofocus (AF) housing), a second carrier (340) (e.g., optical image stabilizer (OIS) carrier, second housing or optical image stabilizer (OIS) housing), a camera housing (350) (e.g., base housing or base member), a first spring member (SP1), a second spring member (SP2), at least one driving magnet (510) (e.g., magnetic material), at least one autofocus (AF) coil (520) (e.g., first driving coil or first coil), at least one optical image stabilizer (OIS) coil (530) (e.g., second driving coil or It may include a second coil), a substrate supplying power to the AF coil (520), an OIS flexible substrate (540) supplying power to the OIS coil (530), an IR filter (360), an IR bracket (370), a substrate (380) electrically connected to the image sensor (381) (e.g., a flexible printed circuit board) and / or at least one bearing ball (b) disposed between the camera housing (350) and the second carrier (340). The configuration of the camera module (300) described above is an example, and the camera module (300) may omit at least one of the configurations described above or add at least one configuration.
[0064] According to one embodiment, as illustrated in FIG. 4, the camera module (300) may include a second carrier (340) accommodated in a camera housing (350). In one embodiment, the camera housing (350) may be a housing facing an image sensor (381) connected to a substrate (380). In one embodiment, as illustrated in FIG. 4, the camera module (300) may have a structure assembled from a substrate (380) - an image sensor (381) - an IR bracket (370) on which an IR filter (360) is placed - a camera housing (350) - a second carrier (340) - a first carrier (330) - a lens assembly (310) - a shield can (320).
[0065] According to one embodiment, the first carrier (330) may be configured to move in the direction of the optical axis (OA) (e.g., the Z axis in FIG. 3a, OA in FIG. 3a) with respect to the second carrier (340) and the camera housing (350). The second carrier (340) may be configured to move in a first axis direction (S1) (e.g., the X axis direction in FIG. 4, S1) and / or a second axis direction (S2) (e.g., the Y axis direction in FIG. 4, S2) that is substantially perpendicular to the optical axis (OA) with respect to the camera housing (350). The first carrier (330) may be accommodated in the second carrier (340) and move together with the second carrier (340) when the second carrier (340) moves in the direction of the axis (S1, S2) that is perpendicular to the optical axis (OA).
[0066] According to one embodiment, as illustrated in FIG. 4, the first carrier (330) can accommodate a lens assembly (310). The lens assembly (310) can be coupled to the first carrier (330) and fixed to the first carrier (330). The lens assembly (310) can move together with the first carrier (330) when the first carrier (330) moves in the direction of the optical axis (OA). The first carrier (330) can be placed inside the second carrier (340) while accommodating the lens assembly (310).
[0067] In one embodiment, the first carrier (330) may be open so that the lens assembly (310) can be placed therein. In one embodiment, the second carrier (340) may be open so that the first carrier (330) can be placed therein. In one embodiment, the camera housing (350) may be open on its upper surface so that the second carrier (340) can be placed therein.
[0068] According to one embodiment, with reference to FIGS. 3a, 3b and 4, a lens assembly (310) may include at least one lens (312) and a lens barrel (311) (e.g., a lens barrel) in which the lens (312) is disposed. In one embodiment, the lens barrel (311) may be a housing that accommodates a plurality of lenses (312). In one embodiment, a plurality of lenses (312) may be arranged inside the lens barrel (311) along the optical axis (OA) of the lenses.
[0069] In one embodiment, the lens assembly (310) may be moved for autofocus (AF) to automatically adjust the focus of the lens (312) for a subject. In one embodiment, the first carrier (330) may be an autofocus (AF) drive unit. In one embodiment, as the first carrier (330) moves in the direction of the optical axis (OA) relative to the camera housing (350) for focusing the lens (312), the lens assembly (310) may be moved together with the first carrier (330) in the direction of the optical axis (OA). In one embodiment, the camera module (300) may include an AF actuator (e.g., a drive magnet (510) and an AF coil (520)) that provides the driving force required for the first carrier (330) to move in the direction of the optical axis (OA) relative to the camera housing (350). In one embodiment, the AF actuator may include a driving magnet (510) and an AF coil (520) (e.g., a first driving coil or a first coil). In one embodiment, either the driving magnet (510) or the AF coil (520) may be disposed in the first carrier (330). The other of the driving magnet (510) and the AF coil (520) may be disposed within the camera module (300) to face either the driving magnet (510) or the AF coil (520) disposed in the first carrier (330). For example, as shown in FIG. 4, the AF coil (520) may be disposed along the circumference of the first carrier (330). The driving magnet (510) may be disposed on the side of the second carrier (340) that accommodates the first carrier (330) so that at least a portion of it may face the AF coil (520). In one embodiment, the side of the second carrier (340) corresponds to the side (352) of the camera housing (350), and at least a portion may be wrapped through the side (352) of the camera housing (350).The processor (120) can control the current flowing through the AF coil (520) to induce an electromagnetic phenomenon between the driving magnet (510) and the AF coil (520) and move the first carrier (330) in the direction of the optical axis (OA) (e.g., the Z-axis direction in FIG. 4) relative to the OIS carrier (340). Thus, the camera module (300) can adjust the focus of the lens (312) as the lens assembly (310) placed on the first carrier (330) moves together with the first carrier (330) in the direction of the optical axis (OA) relative to the second carrier (340).
[0070] In one embodiment, referring to FIG. 4, the second carrier (340) may include a plurality of carriers. In one embodiment, the second carrier (340) may include a second-1 carrier (341) (e.g., a first OIS carrier) and a second-2 carrier (342) (e.g., a second OIS carrier). In one embodiment, the second-2 carrier (342) may be a carrier disposed in the camera housing (350). The second-1 carrier (341) may be a carrier coupled to the second-2 carrier (342) and facing the shield can (320). In one embodiment, a driving magnet (510) may be disposed between the second-1 carrier (341) and the second-2 carrier (342) and may be coupled to the second-1 carrier (341) and the second-2 carrier (342). As described below, a second spring member (SP2) supporting the lower part of the first carrier (330) (e.g., the part facing the -Z direction in FIG. 4) may be positioned between the second-1 carrier (341) and the second-2 carrier (342). In one embodiment, at least a portion of the second spring member (SP2) may be positioned on the second-2 carrier (342) and coupled with a portion of the first carrier (330). In one embodiment, the second-1 carrier (341) and the second-2 carrier (342) may be formed integrally.
[0071] In one embodiment, the lens assembly (310) may be moved for an optical image stabilizer (OIS) that corrects shaking occurring in the camera module (300) when shooting a subject. In one embodiment, the second carrier (340) may be an optical image stabilizer (OIS) driving unit. The second carrier (340) may be moved in a first axis (S1) direction substantially perpendicular to the optical axis (OA) direction with respect to the camera housing (350). As the lens assembly (310) is accommodated in the second carrier (340) together with the first carrier (330), it may be moved in a second axis (S2) direction with respect to the camera housing (350) via the second carrier (340).
[0072] In one embodiment, the camera module (300) may include an OIS actuator (e.g., a driving magnet (510) and an OIS coil (530)) that provides the driving force necessary for the second carrier (340) to move in a direction substantially perpendicular to the optical axis (OA) direction with respect to the camera housing (350). In one embodiment, the OIS actuator may include a driving magnet (510) and an OIS coil (530). In one embodiment, either the driving magnet (510) or the OIS coil (530) may be placed on either the second carrier (340) or the camera housing (350). The other driving magnet (510) or the OIS coil (530) may be placed on the other of the second carrier (340) and the camera housing (350) to face either the driving magnet (510) or the OIS coil (530). For example, as illustrated in FIG. 5a, the driving magnet (510) may be positioned on the side of the second carrier (340). The OIS coil (530) may be positioned on the support surface (351) of the camera housing (350) on which the second carrier (340) is positioned, so that at least a portion may face the driving magnet (510). In this case, the OIS flexible substrate (540) connected to the OIS coil (530) may be positioned in the camera housing (350). The processor (120) may control the current flowing through the OIS coil (530) to induce an electromagnetic phenomenon between the driving magnet (510) and the OIS coil (530) and move the second carrier (340) in the direction of the first axis (S1) and / or the second axis (S2) which is substantially perpendicular to the direction of the optical axis (OA) with respect to the camera housing (350). Accordingly, the camera module (300) can correct image shake as the lens assembly (310) moves with the second carrier (340) in a direction in which image shake is offset (e.g., in the direction of the first axis (S1) and the direction of the second axis (S2)) with respect to the camera housing (350).
[0073] According to one embodiment, as illustrated in FIGS. 4 and 5b, at least one bearing ball (b) may be disposed between the camera housing (350) and the second carrier (340). In one embodiment, the bearing ball (b) may be in contact to provide rolling friction to the camera housing (350) and the second carrier (340). In one embodiment, the bearing ball (b) may guide the movement of the second carrier (340) relative to the camera housing (350) when the second carrier (340) is moved relative to the camera housing (350) through the electromagnetic force between the driving magnet (510) and the OIS coil (530). For example, the bearing ball (b) may guide the movement of the second carrier (340) relative to the camera housing (350) in a direction substantially perpendicular to the optical axis (OA) direction. In one embodiment, the bearing ball (b) is positioned between the camera housing (350) and the second carrier (340) so that the second carrier (340) can be supported against the camera housing (350). In a comparative embodiment where the bearing ball (b) is not positioned between the second carrier (340) and the camera housing (350), the spring member (e.g., first spring member (SP1), second spring member (SP2)) coupled to the second carrier (340) may sag due to gravity acting on the second carrier (340). In this case, the position of the first carrier (330) supported by the spring member may be distorted. According to one embodiment of the present disclosure, as the bearing ball (b) supports the second carrier (340) between the camera housing (350) and the second carrier (340), the sagging of the spring member (e.g., first spring member (SP1), second spring member (SP2)) coupled to the second carrier (340) can be improved or prevented.
[0074] In one embodiment, there may be at least three bearing balls (b) and they may be positioned at locations corresponding to the four corners of the second carrier (340) and camera housing (350), which are substantially rectangular in shape. In one embodiment, the bearing balls (b) may be placed in guide grooves formed on the surfaces of the second carrier (340) and the camera housing (350) facing each other. In one embodiment, a guide groove (e.g., the guide groove (353) of FIG. 6a) into which the bearing balls (b) are received may be formed on the support surface (351) of the camera housing (350). For example, the guide groove (353) may be formed on the corner of the camera housing (350). The camera housing (350) may include a side (352) extending vertically from the support surface (351). The corner of the camera housing (350) may be an area formed where two different sides of the side (352) of the camera housing (350) meet. In one embodiment, a guide groove (not shown) corresponding to a guide groove (353) of the camera housing (350) may be formed on one surface of the second-second carrier (342) of the second carrier (340) facing the support surface (351) of the camera housing (350). In one embodiment, a bearing ball (b) may be received in the guide groove (353) of the camera housing (350) and the guide groove of the second-second carrier (342) to guide movement of the second carrier (340) relative to the camera housing (350) in the direction of the first axis (S1) and / or the second axis (S2).
[0075] In one embodiment, referring to FIG. 5a, the camera housing (350) may include an opening (3511) formed on one side (e.g., the support surface (351) of FIG. 4) and on which an OIS position detection sensor (390) is located. The camera module (300) may include a yoke (500) in which at least a portion faces a driving magnet (510). In one embodiment, the yoke (500) may be located on the support surface (e.g., the support surface (351) of FIG. 4) of the camera housing (350). According to one embodiment, an attractive force (e.g., adsorption force, magnetic attractive force) may act between the yoke (500) and the driving magnet (510). In one embodiment, a second carrier (340) with a drive magnet (510) placed thereon can be constrained to a camera housing (350) with a yoke (500) placed thereon through an attractive force acting between the yoke (500) and the drive magnet (510). In one embodiment, a second carrier (340) with a drive magnet (510) placed thereon (e.g., the second carrier (340) of FIG. 5a) can be constrained to a camera housing (350) with a yoke (500) placed thereon through an attractive force acting between the yoke (500) and the drive magnet (510). In this case, the second carrier (340) - bearing ball (b) - camera housing (350) can be closely attached through an attractive force acting between the yoke (500) and the drive magnet (510).
[0076] According to one embodiment, as illustrated in FIGS. 3a, 3b and 4, the shield can (320) is positioned at the outermost edge of the camera module (300) so that at least a portion of it can enclose the camera housing (350). In one embodiment, the shield can (320) can block or reduce electromagnetic waves generated outside the camera module (300) to reduce the occurrence of malfunctions of the camera module (300). In one embodiment, the shield can (320) may be formed from a material that shields electromagnetic waves, such as copper, iron, aluminum and / or nickel, and may be formed from various materials other than those described above that a person skilled in the art can implement.
[0077] In one embodiment, the camera module (300) may include an OIS flexible substrate (540) (e.g., a flexible printed circuit board) that is electrically connected to an OIS coil (530). In some embodiments, an AF coil (520) may be electrically connected to the OIS flexible substrate (540). A processor (120) may be placed on a main board (not shown) of the electronic device (101) and may control the second carrier (340) to move in the direction of the first axis (S1) and / or the second axis (S2) relative to the camera housing (350) by supplying current to the OIS coil (530) through the OIS flexible substrate (540).
[0078] In one embodiment, the processor (120) can control the first carrier (330) to move in the direction of the optical axis (OA) relative to the second carrier (340) by supplying current to the AF coil (520) through the first spring member (SP1). One end of the first spring member (SP1) (e.g., part of the third fixed part (SP13) in FIG. 10a) may be electrically connected to the AF coil (520). For example, one end of the first spring member (SP1) may be soldered to the AF coil (520). The other end of the first spring member (SP1) (e.g., part of the first fixed part (SP11) in FIG. 10a) may be electrically connected to an AF flexible substrate (not shown) or a metal plate (not shown). In one embodiment, the AF flexible substrate or the metal plate may be electrically connected to a driving circuit. Accordingly, the processor (120) can control the driving circuit to supply current to the AF coil (520) through the AF flexible substrate or metal plate - the first spring member (SP1). In one embodiment, the AF flexible substrate connected to the AF coil (520) may be formed integrally with the OIS flexible substrate (540) connected to the OIS coil (530).
[0079] According to one embodiment, as illustrated in FIG. 4, the camera module (300) may include a first spring member (SP1) and a second spring member (SP2) connected to a camera housing (350), a first carrier (330), and / or a second carrier (340). In one embodiment, the first spring member (SP1) may be fixed to the camera housing (350), the first carrier (330), and / or the second carrier (340), as illustrated in FIG. 10a, which will be described later. For example, at least a portion of the first spring member (SP1) may be joined to the camera housing (350), the first carrier (330), and / or the second carrier (340) by welding or bonding via an adhesive member (e.g., tape, bond). In some embodiments, at least a portion of the first spring member (SP1) may be fixed to the camera housing (350) and the second carrier (340), and a portion may be placed on the first carrier (330). In one embodiment, the second spring member (SP2) may be positioned inside the second carrier (340) to support at least a portion of the first carrier (330). For example, the second spring member (SP2) may be positioned in the second carrier (342) and at least a portion may be fixed to the first carrier (330) by welding or bonding via an adhesive member (e.g., tape, bond). In some embodiments, the second spring member (SP2) may be in contact with the first carrier (330) without being fixed to it.
[0080] In one embodiment, the first spring member (SP1) and the second spring member (SP2) can elastically support the movement of the first carrier (330) in the direction of the optical axis (OA) (e.g., the Z-axis direction of FIG. 4). In one embodiment, the first carrier (330) can perform an autofocus function by moving in the direction of the optical axis (OA) relative to the second carrier (340) and the camera housing (350) through the electromagnetic force acting between the driving magnet (510) and the AF coil (520). Referring to FIG. 5a, when the first carrier (330) moves in the + Z direction of FIG. 5a, the first spring member (SP1) and the second spring member (SP2) can apply an elastic force to the first carrier (330) in a direction opposite to the movement of the first carrier (330) (e.g., the - Z direction of FIG. 5a). Conversely, when the first carrier (330) moves in the -Z direction of FIG. 5a, the first spring member (SP1) and the second spring member (SP2) can apply an elastic force to the first carrier (330) in a direction opposite to the movement of the first carrier (330) (e.g., the +Z direction of FIG. 5a). By applying an elastic force in a direction opposite to the movement direction of the first carrier (330), the spring members (SP1, SP2) can control movement caused by external shock or vibration applied to the first carrier (330). In one embodiment, the first carrier (330) can return to a reference position before movement through the elastic force applied from the spring members (SP1, SP2) after moving by the electromagnetic force between the AF coil (520) and the driving magnet (510), as the current applied to the AF coil (520) is cut off or reduced. The reference position may be the position of the first carrier (330) within the camera module (300) before current is applied to the AF coil (520).
[0081] In one embodiment, the first spring member (SP1) and the second spring member (SP2) can control the movement of the second carrier (340) in the direction of the first axis (S1) and the second axis (S2) which are substantially perpendicular to the direction of the optical axis (OA) with respect to the camera housing (350). In one embodiment, the second carrier (340) can correct image shake by moving in a direction in which image shake is offset (e.g., a direction substantially perpendicular to the optical axis (OA)) through the electromagnetic force acting between the driving magnet (510) and the OIS coil (530). Referring to FIG. 5a, when the second carrier (340) moves in the direction of the first axis (S1) and / or the second axis (S2) with respect to the camera housing (350), the first spring member (SP1) and the second spring member (SP2) can apply an elastic force to the second carrier (340) in a direction opposite to the movement of the second carrier (340). The spring members (SP1, SP2) can control movement caused by external shock or vibration applied to the second carrier (340) by applying elastic force in a direction opposite to the direction of movement of the second carrier (340). In one embodiment, the second carrier (340) can return to a reference position before movement through the elastic force applied from the spring members (SP1, SP2) after moving due to the electromagnetic force acting between the driving magnet (510) and the OIS coil (530), as the current applied to the OIS coil (530) is cut off or reduced. The reference position may be the position of the second carrier (340) within the camera module (300) before current is applied to the OIS coil (530).
[0082] In one embodiment, the first spring member (SP1) and the second spring member (SP2) may be formed in various shapes and / or various materials. In one embodiment, the first spring member (SP1) and the second spring member (SP2) may be formed as leaf springs. In one embodiment, the first spring member (SP1) and the second spring member (SP2) may be formed from metal materials such as stainless steel, beryllium copper, nickel copper, and carbon steel, and may be formed from non-metal materials such as polyacetal, polycarbonate, carbo fiber, urethane, and rubber.
[0083] According to one embodiment, as illustrated in FIG. 4, an IR bracket (370) on which an IR filter (360) is disposed and a substrate (380) on which an image sensor (381) is disposed may be disposed in the lower part of the camera housing (350) (e.g., in the -Z direction of FIG. 4). In one embodiment, the image sensor (381) may be disposed facing the IR filter (360) at the lower part of the IR bracket (370). In one embodiment, the IR filter (360) may be a filter that selectively reflects or absorbs near-infrared wavelengths to block their entry into the image sensor (381). In one embodiment, the IR filter (360) may be disposed in the IR bracket (370) and may be disposed between the lens (312) of the lens assembly (310) and the image sensor (381). The image sensor (381) can acquire an image corresponding to the subject by detecting light emitted or reflected from the subject and transmitted through the lens assembly (310) - IR filter (360) and converting the light into an electrical signal. In one embodiment, the substrate (380) connected to the image sensor (381) may be electrically connected to a main board on which the processor (120) is placed, which is electrically connected to the processor (120) through a connector (382). In one embodiment, the main board (not shown) may be a printed circuit board placed inside the electronic device (101). The electronic device (101) may include a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance.
[0084] FIG. 6a is a drawing in which the end of a driving magnet and a yoke are arranged in an overlapping manner according to one embodiment of the present disclosure. FIG. 6b is a drawing illustrating the arrangement relationship of a driving magnet, an OIS coil, and a yoke according to one embodiment of the present disclosure. FIG. 7a is a drawing in which a yoke is arranged at the corner portion of a camera housing according to one embodiment of the present disclosure. FIG. 7b is a cross-sectional view taken along the line 7b-7b of FIG. 7a. FIG. 7c is a drawing of various shapes of a yoke in which at least a portion overlaps with a driving magnet according to one embodiment of the present disclosure. FIG. 8a is a drawing in which at least a portion of a yoke is arranged in a guide groove formed in a camera housing according to one embodiment of the present disclosure. FIG. 8b is a cross-sectional view taken along the line 8b-8b of FIG. 8a. FIG. 8c is a drawing of various shapes of a yoke in which at least a portion overlaps with a driving magnet and a portion is arranged in a guide groove of a camera housing according to one embodiment of the present disclosure.
[0085] According to one embodiment, as illustrated in FIGS. 6a and 6b, the camera module (300) may include a yoke (500) in which at least a portion faces the driving magnet (510). In one embodiment, the yoke (500) may be positioned in the camera housing (350) so that at least a portion faces the driving magnet (510). For example, when the camera module (300) is viewed from above in the direction of the optical axis (OA) of the camera housing (350) (e.g., the Z-axis direction in FIG. 6a), at least a portion of the yoke (500) may overlap with the driving magnet (510). In one embodiment, the yoke (500) may be located on a support surface of the camera housing (350) (e.g., the support surface (351) in FIG. 4).
[0086] According to one embodiment, an attractive force (e.g., adsorption force, magnetic attractive force) may act between the yoke (500) and the driving magnet (510). In one embodiment, a second carrier (340) on which the driving magnet (510) is placed (e.g., the second carrier (340) of FIG. 5a) may be constrained to a camera housing (350) on which the yoke (500) is placed through the attractive force acting between the yoke (500) and the driving magnet (510). In this case, as shown in FIG. 11 to be described later, the second carrier (340) - bearing ball (b) - camera housing (350) may be closely attached through the attractive force acting between the yoke (500) and the driving magnet (510). Accordingly, the bearing ball (b) can rotate and / or move in close contact with the camera housing (350) and the second carrier (340) in the guide groove (353) of the camera housing (350) and the guide groove of the second carrier (340).
[0087] According to one embodiment, the attractive force acting between the yoke (500) and the driving magnet (510) may act as a driving resistance force when moving the second carrier (340) for image shake correction in the direction of the first axis (S1) (e.g., X-axis in FIG. 6a) and / or the second axis (S2) (e.g., Y-axis in FIG. 6a). For example, as the area where the yoke (500) and the driving magnet (510) overlap increases, the strength of the attractive force acting between the yoke (500) and the driving magnet (510) may increase. As the strength of the attractive force acting between the yoke (500) and the driving magnet (510) increases, an increase in the strength of the electromagnetic force acting between the OIS coil (530) and the driving magnet (510) to drive the second carrier (340) in the direction of the first axis (S1) and / or the second axis (S2) relative to the camera housing (350) may be required. In such cases, the power consumption for driving the second carrier (340) may increase, and the accuracy of image shake correction may decrease. According to one embodiment of the present disclosure, the yoke (500) may be placed in the camera housing (350) so as to overlap with a portion of the driving magnet (510). In one embodiment, the yoke (500) may be placed in the camera housing (350) so as to overlap with the ends of a plurality of driving magnets (510) that are orthogonal to each other. For example, the yoke (500) may overlap with the ends of the driving magnets (510) between a plurality of driving magnets (510) that are adjacent and orthogonal to each other. The yoke (500) may overlap with only a portion of the total area of a single driving magnet (510). Accordingly, by adjusting the overlap area between the yoke (500) and the driving magnet (510), the strength of the attractive force acting between the yoke (500) and the driving magnet (510) can be adjusted. Accordingly, the driving resistance of the second carrier (340) due to the attractive force acting between the yoke (500) and the driving magnet (510) can be reduced. The arrangement relationship between the yoke (500) and the driving magnet (510) will be explained in detail below.
[0088] According to one embodiment, as illustrated in FIGS. 6a and 6b, a plurality of driving magnets (510) may be orthogonal to each other when the camera module (300) is viewed from above toward the support surface (351) of the camera housing (350) (e.g., in the Z-axis direction of FIG. 6a). For example, the plurality of driving magnets (510) may be arranged so that adjacent driving magnets (510) face the side (352) of the camera housing (350) and are orthogonal to each other. In one embodiment, the driving magnet (510) may include a first driving magnet (510a), a second driving magnet (510b) substantially orthogonal to the first driving magnet (510a), a third driving magnet (510c) substantially orthogonal to the second driving magnet (510b) and at least a portion facing the first driving magnet (510a), and / or a fourth driving magnet (510d) substantially orthogonal to the third driving magnet (510c) and facing the second driving magnet (510b). The number of driving magnets (510) described above is merely an example, and the number of driving magnets (510) included in the camera module (300) may vary in many ways.
[0089] The above-described driving magnet (510) and the description of the driving magnet (510) below may be applied equally to the first driving magnet (510a), the second driving magnet (510b), the third driving magnet (510c), and the fourth driving magnet (510d). Additionally, the description of any one of the first driving magnet (510a), the second driving magnet (510b), the third driving magnet (510c), and the fourth driving magnet (510d) may be applied equally to the remaining driving magnets.
[0090] According to one embodiment, as illustrated in FIGS. 6a and 6b, drive magnets (510) that are orthogonal to each other may partially overlap with one yoke (500). In one embodiment, the yoke (500) may include a first yoke (500a) in which at least a portion overlaps with the first drive magnet (510a) and the second drive magnet (510b) when viewed from above (e.g., in the Z-axis direction of FIG. 6a), a second yoke (500b) in which at least a portion overlaps with the second drive magnet (510b) and the third drive magnet (510c), a third yoke (500c) in which at least a portion overlaps with the third drive magnet (510c) and the fourth drive magnet (510d), and a fourth yoke (500d) in which at least a portion overlaps with the fourth drive magnet (510d) and the first drive magnet (510a). In one embodiment, the first yoke (500a) may overlap with one end (5101a) of the first driving magnet (510a) and one end (5101b) of the second driving magnet (510b) between the first driving magnet (510a) and the second driving magnet (510b). The second yoke (500b) may overlap with the other end (5102b) of the second driving magnet (510b) and one end (5101c) of the third driving magnet (510c) between the second driving magnet (510b) and the third driving magnet (510c). The third yoke (500c) may overlap the other end (5102c) of the third drive magnet (510c) and the one end (5101d) of the fourth drive magnet (510d) between the third drive magnet (510c) and the fourth drive magnet (510d). The fourth yoke (500d) may overlap the other end (5102a) of the first drive magnet (510a) and the other end (5102d) of the fourth drive magnet (510d) between the first drive magnet (510a) and the fourth drive magnet (510d).
[0091] The description of the yoke (500) described above and the yoke (500) below may be applied equally to the first yoke (500a), the second yoke (500b), the third yoke (500c), and the fourth yoke (500d). Additionally, the description of any one of the first yoke (500a), the second yoke (500b), the third yoke (500c), and the fourth yoke (500d) may be applied equally to the remaining drive magnets.
[0092] When the camera module is viewed from above in the direction of the optical axis (OA) (e.g., the Z-axis direction of FIG. 6a), the overlapping area between the first drive magnet (510a) and the second drive magnet (510b) and the first yoke (500a) may be different from the overlapping area between the second drive magnet (510b) and the third drive magnet (510c) and the second yoke (500b). In this case, as the attractive force acting between the first drive magnet (510a) and the second drive magnet (510b) and the first yoke (500a) and the attractive force acting between the second drive magnet (510b) and the third drive magnet (510c) and the second yoke (500b) are different, a rotational force may be generated in the second carrier (340) that rotates with respect to the camera housing (350) with respect to the optical axis (OA) (e.g., the Z-axis of FIG. 6a). Since the second carrier (340) is constrained to the camera housing (350) via the drive magnet (510) and the yoke (500), movement in the direction of the first axis (S1) and the second axis (S2), which are substantially perpendicular to the optical axis (OA), may not be guaranteed by rotational force. Therefore, the rotational force acting on the second carrier (340) may affect the operation controlling the movement of the second carrier (340) and may interfere with the image correction function.
[0093] According to one embodiment of the present disclosure, a plurality of yokes (500) and a plurality of driving magnets (510) can be arranged in a camera module (300) so that no asymmetry of attractive force occurs. For example, rotational force that may be generated in the second carrier (340) can be suppressed by adjusting the position where the yokes (500) and driving magnets (510) are arranged. According to one embodiment, as illustrated in FIGS. 6a to 8c, a plurality of driving magnets (510) (e.g., the first driving magnet (510a), the second driving magnet (510b), the third driving magnet (510c), and the fourth driving magnet (510d) of FIG. 6a) and a plurality of yokes (500) (e.g., the first yoke (500a), the second yoke (500b), the third yoke (500c), and the fourth yoke (500d) of FIG. 6a) may be arranged symmetrically with respect to the center (C) of the camera module (300) so as to prevent rotational force from being generated on the second carrier (340) due to the asymmetry of the attractive force acting between the driving magnets (510) and the yokes (500). The center (C) of the camera module (300) may correspond to the center and / or optical axis (OA) of the lenses (312). Referring to FIGS. 6a through 7c, the driving magnets (510) and yokes (500) may be symmetrical with respect to a virtual straight line (e.g., R1, R2 in FIG. 6a) passing through the corner of the camera housing (350). Additionally, the driving magnets (510) and yokes (500) may be symmetrical with respect to a straight line (e.g., X-axis or Y-axis in FIG. 6a) passing through the center (C) of the camera housing (350) and parallel to the side (352) of the camera housing (350). Thus, as a uniform attractive force acts between the plurality of driving magnets (510) and the plurality of yokes (500), rotation of the second carrier (340) relative to the camera housing (350) with respect to the optical axis (OA) may be prevented or avoided.
[0094] According to one embodiment, a plurality of driving magnets (510) may be formed with substantially the same size or shape so that no asymmetry in attractive force occurs with a plurality of yokes (500). Likewise, a plurality of yokes (500) may be formed with substantially the same size or shape so that no asymmetry in attractive force occurs with a plurality of driving magnets (510).
[0095] According to one embodiment, the driving magnet (510) may be moved together with the second carrier (340) relative to the camera housing (350) based on the second carrier (340) moving in the direction of the first axis (S1) and / or the second axis (S2) relative to the camera housing (350) for image shake correction. The driving magnet (510) and the plurality of yokes (500) may maintain an overlapping state regardless of the movement of the second carrier (340). In one embodiment, the overlapping area of the driving magnet (510) and the plurality of yokes, e.g., the first yoke (500a), the second yoke (500b), the third yoke (500c), the fourth yoke (500d), may be based on the stroke of the second carrier (340) in the direction of the first axis (S1) and / or the second axis (S2). In one embodiment, the length of the end of the driving magnet (510) that overlaps with the yoke (500) may be less than or equal to 1 / 3 of the total length of the driving magnet (e.g., the total length (L) of FIG. 9).
[0096] According to one embodiment, as illustrated in FIGS. 7a, 7b, 8a, and 8b, a yoke (500) (e.g., a first yoke (500a)) may be placed inside a camera housing (350). In one embodiment, the yoke (500) may be placed inside the camera housing (350) through an insert injection process. For example, after the yoke (500) is placed in a mold forming the camera housing (350) during the injection process, an injection mold forming the camera housing (350) may be injected into the mold. In one embodiment, the yoke (500) may be placed inside a support surface (351) of the camera housing (350). In one embodiment, FIGS. 7a, 7b, 8a, and 8b show the first yoke (500a) placed inside the camera housing (350), but is not limited thereto. In one embodiment, the second yoke (500b), the third yoke (500c), and the fourth yoke (500d) may be placed inside the camera housing (350).
[0097] According to one embodiment, as illustrated in FIG. 7c, the yoke (500) can be formed in various shapes. In one embodiment, referring to FIG. 7c (a) and (b), the yokes located at the corners of the camera housing (350) (e.g., first yoke (500a), second yoke (500b), third yoke (500c) and fourth yoke (500d)) can be formed integrally. In one embodiment, referring to FIG. 7c (c) and (d), the yokes located at the corners of the camera housing (350) (e.g., first yoke (500a), second yoke (500b), third yoke (500c) and fourth yoke (500d)) can be separated from each other and disposed on the camera housing (350).
[0098] According to one embodiment, as illustrated in FIGS. 8a, 8b, and 8c, the yoke (500) may be positioned in a guide groove (353) in which at least a portion is received by a bearing ball (b). In one embodiment, the bearing ball (b) may be received in the guide groove (353) and come into contact with the yoke (500). In one embodiment, the yoke (500) may be formed of a magnetic metal (e.g., iron (Fe)) or a non-metallic material (e.g., ferrite). Additionally, the yoke (500) may be formed of a material having higher rigidity and / or strength than the camera housing (350). Thus, the bearing ball (b) may come into contact with the yoke (500). When an external impact is applied to the camera module (300), the bearing ball (b) presses against one side of the camera housing (350) (e.g., the inner surface of the guide groove (353)), thereby preventing or avoiding damage (e.g., dents) that may occur to the camera housing (350).
[0099] According to one embodiment, as illustrated in FIG. 8c, the yoke (500) can be formed in various shapes. In one embodiment, referring to FIG. 8c (a), yokes located at the corners of the camera housing (350) (e.g., first yoke (500a), second yoke (500b), third yoke (500c) and fourth yoke (500d)) may be separated from each other and disposed in the camera housing (350). In one embodiment, referring to FIG. 8c (b) and (c), yokes located at the corners of the camera housing (350) and having at least a portion disposed in the guide groove (353) (e.g., first yoke (500a), second yoke (500b), third yoke (500c) and fourth yoke (500d)) may be formed integrally.
[0100] FIG. 9 is a drawing according to one embodiment of the present disclosure in which a yoke is arranged to overlap with each end of a plurality of mutually orthogonal driving magnets.
[0101] According to one embodiment, as illustrated in FIG. 9, the camera module (300) has a plurality of yokes (501a, 501b, 502a) that respectively overlap with the ends of the driving magnets (510) (e.g., first driving magnet (510a), second driving magnet (510b), third driving magnet (510c) and fourth driving magnet (510d)) when viewed from above in the direction of the optical axis (OA) (e.g., the Z-axis direction of FIG. 9), e.g., ends of the first driving magnet (510a) (5101a, 5102a), ends of the second driving magnet (510b) (5101b, 5102b), ends of the third driving magnet (510c) (5101c, 5102c), ends of the fourth driving magnet (510d) (5101d, 5102d)). It may include 502b, 503a, 503b, 504a, and 504b. For example, referring to FIG. 9, the first-1 yoke (501a) may overlap with one end (5101a) of the first driving magnet (510a). The first-2 yoke (501b) may overlap with one end (5101b) of the second driving magnet (510b). The second-1 yoke (502a) may overlap with the other end (5102b) of the second driving magnet (510b). The second-2 yoke (502b) may overlap with one end (5101c) of the third driving magnet (510c). The third-1 yoke (503a) may overlap with the other end (5102c) of the third driving magnet (510c). The third-2 yoke (503b) may overlap with one end (5101d) of the fourth drive magnet (510d). The fourth-1 yoke (504a) may overlap with the other end (5102d) of the fourth drive magnet (510d). The fourth-2 yoke (504b) may overlap with the other end (5102a) of the first drive magnet (510a).
[0102] A plurality of yokes (501a, 501b, 502a, 502b, 503a, 503b, 504a, 504b) may each be in the form of the first yoke (500a), second yoke (500b), third yoke (500c), and fourth yoke (500d) of FIG. 6a divided into multiple parts. An attractive force (e.g., adsorption force, magnetic attraction force) may act between the yokes (501a, 501b, 502a, 502b, 503a, 503b, 504a, 504b) and the driving magnets (510). Accordingly, the bearing ball (b) can rotate and / or move in close contact with the camera housing (350) and the second carrier (340) in the guide groove (353) of the camera housing (350) and the guide groove of the second carrier (340).
[0103] According to one embodiment, as illustrated in FIG. 9, driving magnets (510) in a mutually orthogonal relationship may overlap with each other yokes (501a, 501b, 502a, 502b, 503a, 503b, 504a, 504b). For example, a first-1 yoke (501a) and a first-2 yoke (501b) may be placed between a first driving magnet (510a) and a second driving magnet (510b) that are mutually orthogonal. In one embodiment, the first-1 yoke (501a) may face one end (5101a) of the first driving magnet (510a). The first-2 yoke (501b) may face one end (5101b) of the second driving magnet (510b). In one embodiment, a second-1 yoke (502a) and a second-2 yoke (502b) may be disposed between a second drive magnet (510b) and a third drive magnet (510c) that are orthogonal to each other. In one embodiment, the second-1 yoke (502a) may face the other end (5102b) of the second drive magnet (510b). The second-2 yoke (502b) may face the end (5101c) of the third drive magnet (510c). In one embodiment, a third-1 yoke (503a) and a third-2 yoke (503b) may be disposed between a third drive magnet (510c) and a fourth drive magnet (510d) that are orthogonal to each other. In one embodiment, the third-1 yoke (503a) may face the other end (5102c) of the third drive magnet (510c). The third-2 yoke (503b) may face the first end (5101d) of the fourth drive magnet (510d). In one embodiment, the fourth-1 yoke (504a) and the fourth-2 yoke (504b) may be disposed between the fourth drive magnet (510d) and the first drive magnet (510a) which are orthogonal to each other. In one embodiment, the fourth-1 yoke (504a) may face the other end (5102d) of the fourth drive magnet (510d). The fourth-2 yoke (502b) may face the other end (5102a) of the first drive magnet (510a).
[0104] According to one embodiment, as illustrated in FIG. 9, a plurality of driving magnets (510) (e.g., a first driving magnet (510a), a second driving magnet (510b), a third driving magnet (510c), and a fourth driving magnet (510d) of FIG. 9) and a plurality of yokes (501a, 501b, 502a, 502b, 503a, 503b, 504a, 504b) are such that, due to an imbalance of attractive forces acting between the plurality of driving magnets (510) and the plurality of yokes (501a, 501b, 502a, 502b, 503a, 503b, 504a, 504b), a second carrier (340) (e.g., the second carrier (340) of FIG. 5a) is positioned relative to a camera housing (350) (e.g., the camera housing (350) of FIG. 5a). They may be arranged symmetrically with respect to the center (C) of the camera module (300) so as to prevent rotation around the optical axis (OA) (e.g., OA in FIG. 4, Z axis in FIG. 9). For example, referring to FIG. 9, the driving magnets (510) and the yokes (500) may be symmetrically arranged with respect to a virtual straight line (R1, R2) passing between the driving magnets (510) and passing through the corner of the camera housing (350). Additionally, the driving magnets (510) and the yokes (501a, 501b, 502a, 502b, 503a, 503b, 504a, 504b) may be symmetrically arranged with respect to a straight line (e.g., X axis or Y axis in FIG. 9) passing through the center (C) of the camera housing (350) and parallel to the side (352) of the camera housing (350). Accordingly, as a uniform attractive force acts between the plurality of driving magnets (510) and the plurality of yokes (501a, 501b, 502a, 502b, 503a, 503b, 504a, 504b), rotation of the second carrier (340) relative to the camera housing (350) with respect to the optical axis (OA) can be prevented or avoided.
[0105] According to one embodiment, the driving magnet (510) may be moved together with the second carrier (340) relative to the camera housing (350) relative to the camera housing (350) based on the second carrier (340) moving in the direction of the first axis (S1) and / or the second axis (S2) for image shake correction. The driving magnet (510) and a plurality of yokes (501a, 501b, 502a, 502b, 503a, 503b, 504a, 504b) may maintain an overlapping state regardless of the movement of the second carrier (340). In one embodiment, the overlap area of the driving magnet (510) and the plurality of yokes (501a, 501b, 502a, 502b, 503a, 503b, 504a, 504b) may be based on the movement stroke in the direction of the first axis (S1) and / or the second axis (S2) of the second carrier (340). In one embodiment, referring to FIG. 9, the length of the maximum overlap area of the driving magnet (510) and the plurality of yokes (501a, 501b, 502a, 502b, 503a, 503b, 504a, 504b) may be L2. The length of the minimum overlap area between the driving magnet (510) and the plurality of yokes (501a, 501b, 502a, 502b, 503a, 503b, 504a, 504b) may be L1, which is smaller than L2. In one embodiment, the length of the end portion of the driving magnet (510) that overlaps with the yokes (501a, 501b, 502a, 502b, 503a, 503b, 504a, 504b) may be 1 / 3 or less of the total length (L) of the driving magnet (510).
[0106] FIG. 10a is a drawing in which a first spring member is disposed on a camera housing, a first carrier, and a second carrier according to an embodiment of the present disclosure. FIG. 10b is a combined perspective view of the first spring member, the camera housing, and the second carrier of FIG. 10a. FIG. 11 is a drawing in which a first spring member is coupled to a first coupling portion of a camera housing according to an embodiment of the present disclosure. FIG. 12a is a drawing illustrating a step difference between a first surface and a second surface of a second coupling portion of a second carrier according to an embodiment of the present disclosure. FIG. 12b is a drawing in which a first spring member is coupled to a second coupling portion of a second carrier according to an embodiment of the present disclosure. FIG. 13 is a cross-sectional view taken along line 13-13 of FIG. 3b. FIG. 14 is a cross-sectional view taken along line 14-14 of FIG. 10a according to an embodiment of the present disclosure.
[0107] According to one embodiment, as illustrated in FIG. 10a, at least a portion of the first spring member (SP1) may be joined to the camera housing (350), the first carrier (330), and / or the second carrier (340) by welding or bonding through an adhesive member (e.g., tape, bond). In one embodiment, the first spring member (SP1) may be fixed to the camera housing (350) and the second carrier (340) and at least a portion may be placed on the first carrier (330).
[0108] According to one embodiment, as illustrated in FIG. 10a and FIG. 10b, the camera housing (350) may include a first coupling portion (3501) located at a corner portion. In one embodiment, the first coupling portion (3501) may be formed by extending in a direction perpendicular to the support surface (351) (e.g., the +Z direction in FIG. 10a). In one embodiment, the second carrier (340) may include a second coupling portion (3411) corresponding to the first coupling portion (3501). In one embodiment, the second coupling portion (3411) may be formed on the second-first carrier (341) of the second carrier (340). In one embodiment, the second carrier (340) may be accommodated inside the camera housing (350) such that the second coupling portion (3411) is positioned corresponding to the first coupling portion (3501).
[0109] According to one embodiment, as illustrated in FIG. 10a, the first spring member (SP1) may include a first fixing part (SP11), a second fixing part (SP12), a third fixing part (SP13), a first connecting part (SP14) connecting the first fixing part (SP11) and the second fixing part (SP12), and / or a second connecting part (SP15) connecting the second fixing part (SP12) and the third fixing part (SP13). In one embodiment, the first fixing part (SP11) may be a portion to which the first spring member (SP1) is coupled to the camera housing (350). For example, at least a portion of the first fixing part (SP11) may be fixed to the first coupling part (3501) of the camera housing (350). The first fixing part (SP11) may include a first coupling hole (H3) that is inserted into a first guide projection (F1) formed on the first surface (3501a) of the first coupling part (3501) of the camera housing (350). The second fixing part (SP12) may be a part where the first spring member (SP1) is coupled to the second carrier (340) (e.g., the second-1 carrier (341)). For example, at least a portion of the second fixing part (SP12) may be fixed to the second coupling part (3411) of the second-1 carrier (341). The second fixing part (SP12) may include a second coupling hole (H4) that is inserted into a second guide projection (F2) formed on the first surface (3411a) of the second coupling part (3411) of the second-1 carrier (341).
[0110] The third fixed part (SP13) may be the part where the first spring member (SP1) is coupled to the first carrier (330). In one embodiment, the first fixed part (SP11), the second fixed part (SP12), the third fixed part (SP13), the first connecting part (SP14), and the second connecting part (SP15) are conceptually distinguished for convenience of explanation, and the first spring member (SP1) may not be physically divided into the first fixed part (SP11), the second fixed part (SP12), the third fixed part (SP13), the first connecting part (SP14), and the second connecting part (SP15). In one embodiment not shown in the drawings, the second spring member (SP2) may be divided into a configuration identical or similar to that of the first spring member (SP1).
[0111] According to one embodiment, as illustrated in FIG. 11, the first coupling portion (3501) of the camera housing (350) may include a first surface (3501a) to which the first fixing portion (SP11) of the first spring member (SP1) is fixed, and a second surface (3501b) located below the first surface (3501a) (e.g., in the -Z direction of FIG. 10b) to form a step with the first surface (3501a).
[0112] According to one embodiment, as illustrated in FIG. 11, a first elastic member (401) (e.g., a cushioning member or a damper) may be disposed between the second surface (3501b) of the first coupling member (3501) and the first fixed portion (SP11) of the first spring member (SP1). In one embodiment, the first elastic member (401) is formed of a soft material and may be coupled to the second surface (3501b) and / or the first spring member (SP1) between the second surface (3501b) of the first coupling member (3501) and the first fixed portion (SP11) of the first spring member (SP1). In one embodiment, a hole (H1) may be formed in the first fixed portion (SP11) of the first spring member (SP1) for injecting the first elastic member (401) into the second surface (3501b) of the first coupling member (3501). In one embodiment, the first elastic member (401) is in contact with the second surface (3501b) of the first fixed part (SP11) and the first coupling part (3501) to dampen vibrations that may occur when the second carrier (340) moves in the X-axis or Y-axis direction of FIG. 10a relative to the camera housing (350).
[0113] According to one embodiment, as illustrated in FIG. 12a, the second coupling portion (3411) of the second carrier (340) may include a first surface (3411a) to which the second fixing portion (SP12) of the first spring member (SP1) is fixed, and a second surface (3411b) located below the first surface (3411a) (e.g., in the -Z direction of FIG. 12a) to form a step with the first surface (3411a).
[0114] According to one embodiment, as illustrated in FIG. 12b, a second elastic member (402) (e.g., a cushioning member or a damper) may be disposed between the second surface (3411b) of the second coupling member (3411) and the second fixed portion (SP12) of the first spring member (SP1). In one embodiment, the second elastic member (402) is formed of a soft material and may be coupled to the second surface (3411b) and / or the first spring member (SP1) between the second surface (3411b) of the second coupling member (3411) and the second fixed portion (SP12) of the first spring member (SP1). In one embodiment, a hole (H2) may be formed in the second fixed portion (SP12) of the first spring member (SP1) for injecting the second elastic member (402) into the second surface (3411b) of the second coupling member (3411). In one embodiment, the second elastic member (402) is in contact with the second surface (3411b) of the second fixing part (SP12) and the second coupling part (3411) to dampen vibrations that may occur when the first carrier (330) moves in the direction of the optical axis (OA) relative to the second carrier (340) for focus adjustment. Additionally, the second elastic member (402) can dampen vibrations that occur when an external impact is applied to the camera module (300).
[0115] According to one embodiment, as illustrated in FIG. 13, the first surface (3411a) of the second-1 carrier (341) may be positioned higher in the + Z direction of FIG. 13 than the first surface (3501a) of the first coupling part (3501) of the camera housing (340). The second fixing part (SP12) of the first spring member (SP1) positioned on the first surface (3411a) of the second-1 carrier (341) may be positioned higher in the + Z direction than the first fixing part (SP11) positioned on the first surface (3501a) of the first coupling part (3501) of the camera housing (350). In this case, the first spring member (SP11) can press the second carrier (340) in the - Z direction through the height difference between the first fixing part (SP11) and the second fixing part (SP12). Accordingly, the bearing ball (b) can be in close contact between the camera housing (350) and the second carrier (340) (e.g., the second-2 carrier (342)).
[0116] According to one embodiment, as illustrated in FIG. 14, a third elastic member (403) (e.g., a cushioning member or a damper) may be disposed between the first carrier (330) and the second carrier (340). In one embodiment, the third elastic member (403) is formed of a soft material and can dampen vibrations that may occur when the first carrier (330) moves in the direction of the optical axis (OA) (e.g., the Z-axis direction in FIG. 14) relative to the second carrier (340) for focus adjustment. Additionally, the third elastic member (403) can dampen vibrations that occur when an external impact is applied to the camera module (300).
[0117] In one embodiment, referring to FIG. 14, the third elastic member (403) may be positioned between the portion of the first carrier (330) facing the second coupling portion (3411) of the second carrier (340) and the second coupling portion (3411) of the second carrier (340). For example, the third elastic member (403) may be positioned between the corner portion formed by the adjacent side of the first carrier (330) and the corner portion formed by the adjacent side of the second carrier (340). In one embodiment, the third elastic member (403) may be positioned between the side of the first carrier (330) and the side of the second carrier (340) extending along the X-axis and / or Y-axis of FIG. 10a.
[0118] According to one embodiment, the elastic members (401, 402, 403) (e.g., first elastic member (401), second elastic member (402), third elastic member (403)) may be formed from various materials. In one embodiment, the elastic members (401, 402, 403) may be formed from a liquid material (e.g., epoxy, polyurethane, silicone). In one embodiment, the elastic members (401, 402, 403) may be formed by applying them to a location to be placed via a dispenser (e.g., an injector) and then curing. In one embodiment, the elastic members (401, 402, 403) may be converted into a fluid, solid, or semi-solid state through a curing process. In one embodiment, the liquid elastic members (401, 402, 403) may be cured via UV curing or thermal curing. In addition, the elastic members (401, 402, 403) can be placed inside the camera module (300) through an adhesive member (e.g., double-sided tape, bond) formed of a solid.
[0119] FIG. 15a is a rear view of a camera module according to one embodiment of the present disclosure. FIG. 15b is a cross-sectional view taken along the line 15b-15b of FIG. 15a.
[0120] In the following description, FIG. 15a may be an embodiment in which the camera module (300) is viewed toward the back (e.g., toward the + Z direction of FIG. 15a).
[0121] According to one embodiment, the camera module (300) may include an OIS position sensing sensor (e.g., a Hall sensor) (390) connected to a flexible substrate (540). In one embodiment, the OIS position sensing sensor (390) may detect displacement and / or position in the direction of a first axis (e.g., the X-axis in FIG. 15a) and / or a second axis (e.g., the Y-axis in FIG. 15a) of a second carrier (340) based on OIS operation. In one embodiment, the position sensing sensor (390) may be formed integrally with a driving circuit (e.g., a driver IC) that controls the current of the AF coil (520) and / or the OIS coil (530). For example, the driving circuit may be embedded in the position sensing sensor (390). The processor (120) can control the current of the AF coil (520) and / or OIS coil (530) through the driving circuit to control the strength of the electromagnetic force through the AF actuator and / or OIS actuator.
[0122] In one embodiment, the camera module (300) may include an AF position detection sensor (not shown). In one embodiment, the AF position detection sensor may be electrically connected to a flexible substrate (540). In one embodiment, the AF position detection sensor may detect displacement and / or position in the direction of the optical axis (OA) of the first carrier (330) based on AF operation.
[0123] According to one embodiment, as illustrated in FIG. 15a and FIG. 15b, an OIS position sensing sensor (390) may be placed in a camera housing (350). In one embodiment, the camera housing (350) may include an opening (3511) formed on a support surface (351) in which the OIS position sensing sensor (390) is located. In one embodiment, an OIS flexible substrate (540) may be placed on the support surface (351) of the camera housing (350) so that the OIS position sensing sensor (390) is placed in the opening (3511). In one embodiment, in an embodiment in which an opening (3511) for receiving the OIS position sensing sensor (390) is formed in the camera housing (350), the length of the camera module (300) in the Z-axis direction of FIG. 15b may be reduced by the space occupied by the OIS position sensing sensor (390) compared to an embodiment in which an opening (3511) is not formed in the camera housing (350). Therefore, the size of the camera module (300) can be reduced.
[0124] FIGS. 16a and FIGS. 16b are drawings illustrating the arrangement relationship between a driving magnet and a yoke according to one embodiment of the present disclosure.
[0125] According to one embodiment, as shown in FIGS. 16a and 16b, the yokes (610, 620, 630) are configured in a plurality and placed in the camera housing (350) and may overlap with a plurality of driving magnets (510a, 510b). In the following description of FIGS. 16a and 16b, the arrangement relationship between the first driving magnet (510a) and the second driving magnet (510b) and the yokes (610, 620, 630) described above is described, but the same can be applied to the arrangement relationship between the third driving magnet (510c) and the fourth driving magnet (510d) and the yokes (610, 620, 630).
[0126] According to one embodiment, when the image shake correction function is performed, the second carrier (340) can move in the direction of the first axis (S1) and the second axis (S2) through a driving force generated from an OIS actuator (e.g., driving magnet (510), OIS coil (530)). When a driving force is applied from the OIS actuator, rotational driving (e.g., rotational motion, rotational component) may occur in the second carrier (340). For example, since the second carrier (340) is structured to be constrained only by the attractive force between the driving magnet (510) and the yoke (610, 620, 630), straight driving in the direction of the first axis (S1) and the second axis (S2) may not be guaranteed. Accordingly, the yoke (610, 620, 630) and the driving magnet (510a, 510b) can be arranged in such a way that rotational driving of the second carrier (340) is suppressed.
[0127] In one embodiment, the rotational drive generated in the second carrier (340) may rotate around a virtual rotation axis (RA) parallel to the optical axis (OA). Referring to FIG. 16a and FIG. 16b, during OIS driving, the second carrier (340) may rotate (R) in a clockwise and / or counterclockwise direction within a predetermined range around the rotation axis (RA). The rotation axis (RA) may be defined as a virtual axis extending parallel to the optical axis (OA) while passing through the center of a line segment (LS) connecting the center of the first driving magnet (510a) and the center of the second driving magnet (510b). For example, referring to FIG. 16a and FIG. 16b, a first central axis (CA1) passing through the center of the first driving magnet (510a) and parallel to the optical axis (OA), and a second central axis (CA2) passing through the center of the second driving magnet (510b) and parallel to the optical axis (OA) can be defined. A line segment (LS) perpendicularly connects the first central axis (CA1) and the second central axis (CA2), and a rotation axis (RA) may extend parallel to the optical axis (OA) while passing through the center of the line segment (LS). The line segment (LS) may be a line extending perpendicularly from a point on the first central axis (CA1) toward the second central axis (CA2). For example, the line segment (LS) may be perpendicular to the first central axis (CA1), the second central axis (CA2), and the optical axis (OA).
[0128] In one embodiment, when viewed in a direction perpendicular to the optical axis (OA), the first yoke (610) may overlap at least partially at a position corresponding to the first central axis (CA1) of the first driving magnet (510a). The second yoke (620) may overlap at least partially at a position corresponding to the second central axis (CA2) of the second driving magnet (510b). The third yoke (630) may overlap at the end of the first driving magnet (510a) and the end of the second driving magnet (510b), respectively, between the first driving magnet (510a) and the second driving magnet (510b). In one embodiment, the plurality of driving magnets (510a, 510b) and the plurality of yokes (610, 620, 630) may be symmetrical with respect to the center of the line segment (LS) so that asymmetry in the attractive force acting between the plurality of driving magnets (510a, 510b) and the plurality of yokes (610, 620, 630) does not occur.
[0129] According to one embodiment, as shown in FIG. 16a, the first yoke (610) and the third yoke (630) have an asymmetric shape, so they can form a biased attractive force (e.g., magnetic attraction) in relation to the first driving magnet (510a). Likewise, since the second yoke (620) and the third yoke (630) have asymmetric shapes, they can form a biased attractive force in relation to the second driving magnet (510b). The yoke located relatively far from the axis of rotation (RA) (e.g., the first yoke (610), the second yoke (620)) can have a larger overlapping area with the driving magnets (510a, 510b) so that the strength of the attractive force acting with the driving magnets (510a, 510b) is greater than that of the yoke located relatively close to the axis of rotation (RA) (e.g., the third yoke (630)). For example, the overlapping area between the first yoke (610) located relatively far from the axis of rotation (RA) and the first driving magnet (510a) (e.g., the overlapping area when viewing the camera module (300) from the optical axis (OA)) can be larger than the overlapping area between the third yoke (630) located relatively close to the axis of rotation (RA) and the first driving magnet (510a). Therefore, the first yoke (610) can form a relatively stronger attractive force with the first drive magnet (510a) than the third yoke (630). Similarly, the overlapping area of the second yoke (620) and the second drive magnet (510b), which are located relatively far from the axis of rotation (RA), may be larger than the overlapping area of the third yoke (630) and the second drive magnet (510b), which are located relatively close to the axis of rotation (RA). Thus, the second yoke (620) can form a relatively stronger attractive force with the second drive magnet (510b) than the third yoke (630).
[0130] According to one embodiment, as illustrated in FIG. 16b, the first yoke (610) and the second yoke (620) may be formed in an asymmetrically divided shape. In one embodiment, the first yoke (610) and the second yoke (620) may each be formed such that at least two or more parts are spaced apart at a certain interval. For example, the first yoke (610) and the second yoke (620) may have an asymmetric shape with respect to a first central axis (CA1) and a second central axis (CA2). In one embodiment, the first yoke (610) may include a first part (610a) (e.g., first-1 yoke) and a second part (610b) (e.g., first-2 yoke) that are spaced apart from each other. The second yoke (620) may include a first part (620a) (e.g., second-1 yoke) and a second part (620b) (e.g., second-2 yoke) that are spaced apart from each other. In one embodiment, the first part (610a) and the second part (610b) of the first yoke (610) may be spaced apart by a predetermined distance in the longitudinal direction of the first driving magnet (510a) (e.g., the X-axis direction of FIG. 16b). In one embodiment, the first part (620a) and the second part (620b) of the second yoke (620) may be spaced apart by a predetermined distance in the longitudinal direction of the second driving magnet (510b) (e.g., the Y-axis direction of FIG. 16b).
[0131] According to one embodiment, as illustrated in FIG. 16b, the yokes (610, 620) may have a first part (610a, 610b) located relatively close to the axis of rotation (RA) and a second part (610b, 620b) located relatively far from the axis of rotation (RA). In one embodiment, the overlapping area between the second part (610b) of the first yoke (610) located far from the axis of rotation (RA) and the first driving magnet (510a) may be formed wider than the overlapping area between the first part (610a) of the first yoke (610) located adjacent to the axis of rotation (RA) and the first driving magnet (510a). Accordingly, the second part (610b) of the first yoke (610) may form a relatively stronger attractive force with the first driving magnet (510a) than the first part (610a). In one embodiment, the overlapping area between the second part (620b) of the second yoke (620) located far from the rotation axis (RA) and the second driving magnet (510b) may be formed to be wider than the overlapping area between the first part (620a) of the second yoke (620) located adjacent to the rotation axis (RA) and the second driving magnet (510b). Accordingly, the second part (620b) of the second yoke (620) may form a relatively stronger attractive force with respect to the second driving magnet (510b) than the first part (620a). In one embodiment, the third yoke (630) is relatively adjacent to the axis of rotation (RA) compared to the first part (610a) of the first yoke (610) and the first part (620a) of the second yoke (620), so the overlap area with the driving magnets (510a, 510b) may be smaller than the overlap area between the first part (610a) of the first yoke (610) and the first part (620a) of the second yoke (620) and the driving magnets (510a, 510b).
[0132] According to the embodiments disclosed in this document, the camera module (300) is configured such that a relatively strong attractive force acts on a part of a yoke (e.g., first yoke (610), second yoke (620)) located far from the rotation axis (RA), thereby increasing the rotational restoring force (e.g., torque) acting on the second carrier (340) and thereby reducing the rotational drive (R) generated on the second carrier (340).
[0133] In the description of FIGS. 3a through 16b above, the first carrier (330) is described on the premise that it is received in the second carrier (340), but this is not limited thereto. In one embodiment, the first carrier (330) may be placed in the camera housing (350) while receiving the second carrier (340). In this case, the second carrier (340) may move in the direction of the first axis (S1) and / or the second axis (S2) relative to the first carrier (330) through a driving force provided from an OIS actuator (e.g., a driving magnet (510) and an OIS coil (530)). A bearing ball (b) may be placed between one side of the first carrier (330) perpendicular to the optical axis (OA) (e.g., a supporting surface corresponding to the supporting surface (351) of the camera housing (350)) and one side of the second carrier (340). The driving magnet (510) may be positioned such that at least a portion of it faces a side perpendicular to the support surface of the first carrier (330) inside the camera module (300). The second carrier (340) may be received in the first carrier (330) and move together with the first carrier (330) when the first carrier (330) moves in the direction of the optical axis (OA) relative to the camera housing (350) through the driving force provided from the AF actuator (e.g., driving magnet (510) and AF coil (520)). In an embodiment in which the second carrier (340) is accommodated in the first carrier (330), the yokes (e.g., the yoke (500) of FIG. 6a, the yokes (501a, 501b, 502a, 502b, 503a, 503b, 504a, 504b) of FIG. 9, and the yokes (610, 620, 630) of FIG. 16a) are positioned on the support surface of the first carrier (330) and may overlap with the driving magnets (510) arranged orthogonally to each other when viewed from the optical axis (OA) direction.
[0134] The camera module (300) can move the lens assembly (310) in a direction (S1, S2) substantially perpendicular to the optical axis (OA) of the lens (312) when the image stabilizer function for image shake correction is performed. For example, a structure (e.g., a second carrier (340) or an OIS carrier (340)) in which the lens assembly (310) is housed inside a camera housing (350) can move in a direction (S1, S2) substantially perpendicular to the optical axis (OA). A bearing ball (b) that guides the movement of the OIS carrier (340) may be disposed between the camera housing (350) and the OIS carrier (340). The OIS carrier (340) can be accommodated in the camera housing (350) through a drive magnet (510) and a yoke (e.g., the yoke (500) in FIG. 6a, the yoke (501a, 501b, 502a, 502b, 503a, 503b, 504a, 504b) in FIG. 9, and the yoke (610, 620, 630) in FIG. 16a) so that the bearing ball (b) contacts the OIS carrier (340) and the camera housing (350) to enable rolling friction. For example, the drive magnet (510) may be placed in the OIS carrier (340), and the yoke may be placed in the camera housing (350) so that at least a portion faces the drive magnet (510). The OIS carrier (340) - bearing ball (b) - camera housing (350) can be brought into close contact through the attractive force acting between the drive magnet (510) and the yoke.
[0135] However, as the area where the yoke and the driving magnet (510) overlap increases, the strength of the attractive force acting between the yoke and the driving magnet (510) may increase. The attractive force acting between the yoke and the driving magnet may act as the driving resistance force of the OIS carrier (340). As the strength of the attractive force acting between the yoke and the driving magnet (510) increases, an increase in the strength of the driving force (e.g., electromagnetic force) of the OIS actuator to drive the OIS carrier (340) in the first axis (S1) direction and the second axis (S2) direction relative to the camera housing (350) may be required. In this case, the power consumption for driving the OIS carrier (340) may increase, and the accuracy of image shake correction may decrease.
[0136] The information described above may be provided as related art for the purpose of aiding understanding of the present disclosure. No claim or determination is made as to whether any of the foregoing may be applied as prior art related to the present disclosure.
[0137] According to one embodiment of the present disclosure, a camera module (300) may include a lens assembly (310) comprising one or more lenses (312) substantially aligned along an optical axis (OA). The camera module may include a first carrier (330) that accommodates at least a portion of the lens assembly. The camera module may include a second carrier (340) that accommodates the first carrier. The camera module may include a camera housing (350) comprising a support surface (351) on which the second carrier is placed and a side (352) substantially perpendicular to the support surface. The camera module may include a bearing ball (b) disposed between the support surface of the camera housing and the second carrier and guiding movement of the second carrier in a direction perpendicular to the optical axis relative to the camera housing. The camera module may include a plurality of driving magnets (510) disposed on the second carrier and orthogonal to each other when viewed from above in the direction of the optical axis. The camera module is disposed in the camera housing and may include yokes (500, 501a, 501b, 502a, 502b, 503a, 503b, 504a, 504b, 610, 620, 630) that overlap with the ends of a plurality of driving magnets when the camera module is viewed from above in the direction of the optical axis.
[0138] In one embodiment, the camera module may include an OIS flexible substrate (540) comprising an OIS coil (530) that is disposed on a support surface of the camera housing and faces at least a portion of the driving magnet, and moves the second carrier in a direction perpendicular to the optical axis through an electromagnetic force acting with the driving magnet. The camera module may further include an AF coil (520) that is disposed on the first carrier and faces the driving magnet, and moves the first carrier in the direction of the optical axis through an electromagnetic force acting with the driving magnet.
[0139] In one embodiment, the yoke is composed of a plurality of orthogonal driving magnets, and when the optical axis is viewed from above the camera module, the end of one of the driving magnets and the end of the other driving magnet among the plurality of driving magnets overlap, respectively, and the end of the one driving magnet and the end of the other driving magnet may be adjacent to each other.
[0140] In one embodiment, the plurality of yokes may be symmetrical with respect to a virtual straight line (R1, R2) passing between the plurality of driving magnets.
[0141] In one embodiment, the plurality of driving magnets may include a first driving magnet (510a), a second driving magnet (510b) orthogonal to the first driving magnet, a third driving magnet (510c) facing the first driving magnet and orthogonal to the second driving magnet, and a fourth driving magnet (510d) facing the second driving magnet and orthogonal to the third driving magnet. The above yoke may include a first yoke (500a) that overlaps with one end (5101a) of the first driving magnet and one end (5101b) of the second driving magnet between the first driving magnet and the second driving magnet, a second yoke (500b) that overlaps with the other end (5102b) of the second driving magnet and one end (5101c) of the third driving magnet between the second driving magnet and the third driving magnet, a third yoke (500c) that overlaps with the other end (5102c) of the third driving magnet and one end (5101d) of the fourth driving magnet between the third driving magnet and the fourth driving magnet, and a fourth yoke (500d) that overlaps with the other end (5102a) of the first driving magnet and the other end (5102d) of the fourth driving magnet between the first driving magnet and the fourth driving magnet.
[0142] In one embodiment, the first yoke, the second yoke, the third yoke, and the fourth yoke may be formed integrally.
[0143] In one embodiment, the camera housing may include a guide groove (353) in which the bearing ball is received.
[0144] In one embodiment, at least a portion of the yoke may be disposed inside the guide groove. The bearing ball may be in contact with the yoke inside the guide groove.
[0145] In one embodiment, the length of the end of the driving magnet that overlaps with the yoke may be 1 / 3 or less of the total length of the driving magnet.
[0146] In one embodiment, the camera module may further include a first fixing part (SP11) in which at least a portion is fixed to a first coupling part (3501) formed in the camera housing, a second fixing part (SP12) in which at least a portion is fixed to a second coupling part (3411) formed in the second carrier, and a connecting part (S13) connecting the first fixing part and the second fixing part, and a first spring member (SP1) in which at least a portion is disposed on the upper part of the first carrier.
[0147] In one embodiment, the first coupling portion of the camera housing may include a first surface (3501a) to which the first fixing portion is fixed, and a second surface (3501b) located below the first surface and having a step difference with respect to the first surface in the direction of the optical axis.
[0148] In one embodiment, the camera module may further include an elastic member (401) that contacts the second surface of the first coupling part and the first fixing part between the second surface of the first coupling part and the first fixing part.
[0149] In one embodiment, the second coupling portion of the second carrier may include a first surface (3411a) to which the second fixing portion is fixed, and a second surface (3411b) located below the first surface and having a step difference with respect to the first surface in the direction of the optical axis.
[0150] In one embodiment, the camera module may further include an elastic member (402) that contacts the second surface of the second coupling part and the second fixing part between the second surface of the second coupling part and the second fixing part.
[0151] In one embodiment, the camera module may further include an elastic member (403) disposed between the corner portion of the first carrier facing the second coupling portion of the second carrier and the second coupling portion.
[0152] In one embodiment, the camera module may further include a second spring member (SP2) in which at least a portion is disposed on the lower part of the first carrier and the second carrier.
[0153] In one embodiment, the camera module may further include a position sensing sensor connected to the flexible substrate and detecting the position of the second carrier. The camera housing may include an opening (3511) formed on the support surface and into which the position sensing sensor is disposed.
[0154] According to one embodiment of the present disclosure, a camera module (300) may include a camera housing (350). The camera module may include a lens assembly (310) comprising one or more lenses (312) substantially aligned along an optical axis (OA). The camera module may include a first carrier (330) disposed in the camera housing, comprising a support surface and a side perpendicular to the support surface, and moving along the optical axis relative to the camera housing. The camera module may include a second carrier (340) that accommodates the lens assembly, is disposed in the first carrier, and moves in a direction perpendicular to the optical axis relative to the first carrier. The camera module may include a bearing ball (b) disposed between the support surface of the first carrier and the second carrier and guiding the movement of the second carrier relative to the first carrier. The camera module may include a plurality of driving magnets (510) that are orthogonal to each other when viewed from above in the optical axis direction, with at least a portion facing the side of the first carrier. The camera module may include yokes (500, 501a, 501b, 502a, 502b, 503a, 503b, 504a, 504b, 610, 620, 630) that are disposed on the support surface of the first carrier and overlap with the ends of the plurality of driving magnets when viewed from above in the optical axis direction.
[0155] In one embodiment, the camera module may include a first driving magnet (510a), a second driving magnet (510b) orthogonal to the first driving magnet, a third driving magnet (510c) facing the first driving magnet and orthogonal to the second driving magnet, and a fourth driving magnet (510d) facing the second driving magnet and orthogonal to the third driving magnet. The above yoke may include a first yoke (500a) that overlaps with one end (5101a) of the first driving magnet and one end (5101b) of the second driving magnet between the first driving magnet and the second driving magnet, a second yoke (500b) that overlaps with the other end (5102b) of the second driving magnet and one end (5101c) of the third driving magnet between the second driving magnet and the third driving magnet, a third yoke (500c) that overlaps with the other end (5102c) of the third driving magnet and one end (5101d) of the fourth driving magnet between the third driving magnet and the fourth driving magnet, and a fourth yoke (500d) that overlaps with the other end (5102a) of the first driving magnet and the other end (5102d) of the fourth driving magnet between the first driving magnet and the fourth driving magnet.
[0156] In one embodiment, the yoke may overlap with the end of one of the plurality of driving magnets and the end of the other driving magnet among the plurality of driving magnets, which are orthogonal to each other when viewed from above in the direction of the optical axis. The end of the one driving magnet and the end of the other driving magnet may be adjacent to each other.
[0157] According to one embodiment of the present disclosure, a yoke (e.g., the yoke (500) of FIG. 6a, the yoke (501a, 501b, 502a, 502b, 503a, 503b, 504a, 504b) of FIG. 9, and the yoke (610, 620, 630) of FIG. 16a) may be positioned in a camera module (300) so as to overlap with a portion of a driving magnet (510). In one embodiment, the yoke may be positioned to overlap with each end of the driving magnets (510) between driving magnets (510) that are in a mutually orthogonal relationship. Thus, the strength of the attractive force acting between the yoke and the driving magnet (510) can be adjusted by adjusting the overlapping area between the yoke and the driving magnet (510). Accordingly, the driving resistance of the OIS carrier (340) due to the attractive force acting between the yoke and the driving magnet (510) may be reduced.
[0158] 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 below.
[0159] The electronic device according to the various embodiments disclosed in this document may be of various forms. The electronic device may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a consumer electronics device. The electronic device according to the embodiments of this document is not limited to the devices described above.
[0160] The various embodiments of this document and the terms used therein 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" may each include any one of the items listed together in the corresponding phrase, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used simply to distinguish said components from other said components and do not limit said components in any other aspect (e.g., importance or order). Where any (e.g., 1st) component is referred to as “coupled” or “connected” to another (e.g., 2nd) component, with or without the terms “functionally” or “communicationly,” it means that said any component may be connected to said other component directly (e.g., via a wire), wirelessly, or through a third component.
[0161] 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).
[0162] 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 in the storage medium and execute it. This enables the machine to be operated to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code that can be executed by an interpreter. The storage medium readable by the machine may be provided in the form of a non-transitory storage medium. Here, 'non-temporary' simply means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily.
[0163] According to one embodiment, the method according to the various embodiments disclosed herein may be provided by being included in a computer program product. The computer program product may be traded between a seller and a buyer as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., compact disc read-only memory (CD-ROM)) or an application store (e.g., Play Store). TM It can be distributed online (e.g., downloaded or uploaded) through ) or directly between two user devices (e.g., smartphones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily created on a device-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.
[0164] According to various 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 various 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 integration. According to various 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.
Claims
1. In the camera module (300), A lens assembly (310) comprising one or more lenses (312) substantially aligned along the optical axis (OA); A first carrier (330) that accommodates at least a portion of the above lens assembly; A second carrier (340) that accommodates the first carrier; A camera housing (350) comprising a support surface (351) on which the second carrier is disposed and a side surface (352) substantially perpendicular to the support surface; A bearing ball (b) disposed between the support surface of the camera housing and the second carrier and guiding movement in a direction perpendicular to the optical axis of the second carrier relative to the camera housing; A plurality of driving magnets (510) disposed on the second carrier and orthogonal to each other when viewed from above in the optical axis direction of the camera module; and A camera module comprising: yokes (500, 501a, 501b, 502a, 502b, 503a, 503b, 504a, 504b, 610, 620, 630) disposed in the camera housing and respectively overlapping with the ends of a plurality of driving magnets when the camera module is viewed from above in the optical axis direction.
2. In Paragraph 1, A flexible substrate (540) comprising an OIS coil (530) disposed on the support surface of the camera housing and facing at least a portion of the driving magnet, and moving the second carrier in a direction perpendicular to the optical axis through an electromagnetic force acting with the driving magnet; and A camera module further comprising: an AF coil (520) disposed on the first carrier, facing the driving magnet, and moving the first carrier in the direction of the optical axis through an electromagnetic force acting with the driving magnet.
3. In Paragraph 1, The above yoke is, When the optical axis is viewed from above the camera module, the end of one of the plurality of mutually orthogonal driving magnets and the end of the other driving magnet among the plurality of driving magnets are respectively superimposed. The end of any one of the above driving magnets and the end of the remaining one driving magnet are adjacent to each other camera modules.
4. In Paragraph 3, The above plurality of yokes are, A camera module that is symmetrical with respect to a virtual straight line (R1, R2) passing between a plurality of the aforementioned driving magnets.
5. In Paragraph 1, A plurality of the above-mentioned driving magnets, It includes a first driving magnet (510a), a second driving magnet (510b) orthogonal to the first driving magnet, a third driving magnet (510c) facing the first driving magnet and orthogonal to the second driving magnet, and a fourth driving magnet (510d) facing the second driving magnet and orthogonal to the third driving magnet. The above yoke is, A first yoke (500a) that overlaps with one end (5101a) of the first driving magnet and one end (5101b) of the second driving magnet between the first driving magnet and the second driving magnet, A second yoke (500b) that overlaps with the other end (5102b) of the second driving magnet and the first end (5101c) of the third driving magnet between the second driving magnet and the third driving magnet, A third yoke (500c) overlapping with the other end (5102c) of the third driving magnet and the first end (5101d) of the fourth driving magnet between the third driving magnet and the fourth driving magnet, and A camera module comprising a fourth yoke (500d) that overlaps the other end (5102a) of the first driving magnet and the other end (5102d) of the fourth driving magnet between the first driving magnet and the fourth driving magnet.
6. In Paragraph 5, The first yoke, the second yoke, the third yoke, and the fourth yoke are integrally formed in a camera module.
7. In Paragraph 1, The above camera housing is, A camera module including a guide groove (353) in which the bearing ball is received.
8. In Paragraph 7, At least a portion of the above yoke is positioned inside the guide groove, and The above bearing ball is, A camera module in contact with the yoke inside the guide groove.
9. In Paragraph 1, The length of the end of the driving magnet that overlaps with the above yoke is, A camera module that is 1 / 3 or less of the total length of the above-mentioned driving magnet.
10. In Paragraph 1, A first fixing part (SP11) that is at least partially fixed to a first coupling part (3501) formed in the camera housing, A second fixing part (SP12) in which at least a portion is fixed to a second coupling part (3411) formed on the second carrier, and A camera module further comprising: a first spring member (SP1) having a connecting part (S14) connecting the first fixed part and the second fixed part, and at least a portion thereof disposed on the upper part of the first carrier.
11. In Paragraph 10, The first coupling part of the camera housing above is, A camera module comprising a first surface (3501a) to which the first fixed part is fixed, and a second surface (3501b) located below the first surface and having a step difference with respect to the first surface in the direction of the optical axis.
12. In Paragraph 11, A camera module further comprising: an elastic member (401) in contact with the second surface of the first coupling part and the first fixing part between the second surface of the first coupling part and the first fixing part.
13. In Paragraph 10, The second coupling portion of the second carrier is, It includes a first surface (3411a) to which the second fixing part is fixed, and a second surface (3411b) located below the first surface and forming a step difference with respect to the first surface in the direction of the optical axis, and A camera module further comprising: an elastic member (402) that contacts the second surface of the second coupling part and the fixing part between the second surface of the second coupling part and the fixing part.
14. In Paragraph 10, A camera module further comprising: an elastic member (403) disposed between the corner portion of the first carrier facing the second coupling portion of the second carrier and the second coupling portion.
15. In the camera module (300), Camera housing (350); A lens assembly (310) comprising one or more lenses (312) substantially aligned along the optical axis (OA); A first carrier (330) disposed in the camera housing, comprising a support surface and a side perpendicular to the support surface, and moving along the optical axis with respect to the camera housing; A second carrier (340) that accommodates the lens assembly, is positioned on the first carrier, and moves in a direction perpendicular to the optical axis relative to the first carrier; A bearing ball (b) disposed between the support surface of the first carrier and the second carrier and guiding the movement of the second carrier relative to the first carrier; A plurality of driving magnets (510) that at least a portion of which face the side of the first carrier and are orthogonal to each other when viewed from above in the direction of the optical axis; and A camera module comprising: yokes (500, 501a, 501b, 502a, 502b, 503a, 503b, 504a, 504b, 610, 620, 630) disposed on the support surface of the first carrier and respectively overlapping with the ends of a plurality of driving magnets when the camera module is viewed from above in the optical axis direction.
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