Camera module comprising sheet spring and eletronic device comprising same
The camera module design with orthogonal sheet springs improves lens movement and stabilization, addressing focus and image stabilization challenges, resulting in enhanced image quality.
Patent Information
- Application Number
- PCT/KR2025/005981
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-07-23
- Filing Date
- 2025-05-02
- Publication Date
- 2026-01-02
AI Technical Summary
Existing camera modules face challenges in efficiently adjusting lens focus and implementing image stabilization due to limitations in carrier systems for lens movement.
A camera module design incorporating a plurality of sheet springs arranged in orthogonal directions to facilitate precise movement of lenses along and orthogonal to the optical axis, utilizing first and second carriers for independent directional control.
Enhances the ability to adjust focus and stabilize images effectively by allowing for complex movements of lenses, improving image quality and stability.
Smart Images

Figure KR2025005981_02012026_PF_FP_ABST
Abstract
Description
Camera module including a sheet spring and electronic device including the same
[0001] The disclosure generally relates to a camera module, for example, a camera module including a seat spring. The disclosure also relates to an electronic device including a camera module.
[0002] Technologies are being developed to adjust the focus of a lens or implement image stabilization by moving the lens or image sensor in a specific direction.
[0003] The related art mentioned above is possessed or acquired during the process of deriving the present disclosure and cannot necessarily be said to be prior art disclosed to the general public prior to the filing of the present disclosure.
[0004] A camera module may include a lens including an optical axis. The camera module may include a first carrier configured to transport the lens in a direction along the optical axis. The camera module may include a second carrier configured to transport the lens in a first direction substantially orthogonal to the optical axis. The camera module may include a third carrier configured to move in a second direction substantially orthogonal to the optical axis and the first direction. The camera module may include a plurality of first sheet springs arranged opposite to each other in the first direction with respect to the lens. The plurality of first sheet springs may each include a first fixing portion fixed to the first carrier. The plurality of first sheet springs may each include a second fixing portion fixed to the third carrier. The plurality of first sheet springs may each include a first movable arm connecting the first fixing portion and the second fixing portion. The camera module may include a plurality of second sheet springs arranged opposite to each other in the second direction with respect to the lens. The plurality of second sheet springs may each include a third fixing part fixed to the third carrier. The plurality of second sheet springs may each include a fourth fixing part fixed to the second carrier. The plurality of second sheet springs may each include a second movable arm connecting the third fixing part and the fourth fixing part.
[0005] A camera module may include a lens having an optical axis. The camera module may include a first carrier configured to carry the lens in a direction along the optical axis. The camera module may include a second carrier configured to carry the lens in a direction substantially orthogonal to the optical axis. The camera module may include a third carrier configured to move in a direction substantially orthogonal to the optical axis. The camera module may include a camera housing configured to receive the first carrier, the second carrier, and the third carrier. The camera module may include a plurality of first sheet springs arranged opposite each other in a first direction substantially orthogonal to the optical axis with respect to the lens. The plurality of first sheet springs may each include a first fixing portion fixed to the camera housing. The plurality of first sheet springs may each include a second fixing portion. The plurality of first sheet springs may each include a first movable arm connected to the first fixing portion. The camera module may include a plurality of second sheet springs arranged opposite to each other in a second direction substantially orthogonal to the optical axis and the first direction with respect to the lens. The plurality of second sheet springs may each include a third fixing part fixed to the second fixing part. The plurality of second sheet springs may each include a fourth fixing part fixed to the second carrier. The plurality of second sheet springs may each include a second movable arm connecting the third fixing part and the fourth fixing part.
[0006] The electronic device may include the camera module.
[0007] The above and other aspects, features and advantages of specific embodiments of the disclosure will become apparent from the following detailed description with reference to the accompanying drawings.
[0008] FIG. 1 is a block diagram of an electronic device within a network environment according to one embodiment.
[0009] FIG. 2 is a block diagram illustrating a camera module according to one embodiment.
[0010] FIG. 3 is a perspective view of a one-way electronic device according to one embodiment.
[0011] FIG. 4 is a perspective view of an electronic device in another direction according to one embodiment.
[0012] Figure 5 is a perspective view of a camera module according to one embodiment.
[0013] Figure 6 is an exploded perspective view of a camera module according to one embodiment.
[0014] Figure 7 is a plan view of a camera module according to one embodiment.
[0015] FIG. 8 is a side view of a one-way camera module according to one embodiment.
[0016] Figure 9 is a plan view of a camera module according to one embodiment.
[0017] FIG. 10 is a side view of a camera module in another direction according to one embodiment.
[0018] Figure 11 is an exploded perspective view of a camera module according to one embodiment.
[0019] Figure 12 is an exploded perspective view of a camera module according to one embodiment.
[0020] Figure 13 is an exploded perspective view of a camera module according to one embodiment.
[0021] Figure 14 is a perspective view of a camera module according to one embodiment.
[0022] Figure 15 is a plan view of a camera module according to one embodiment.
[0023] Figure 16 is an exploded perspective view of a camera module according to one embodiment.
[0024] FIG. 17 is a side view of a first sheet spring of a camera module according to one embodiment.
[0025] FIG. 18 is a side view of a second sheet spring of a camera module according to one embodiment.
[0026] FIG. 1 is a block diagram of an electronic device within a network environment according to one embodiment.
[0027] Referring to FIG. 1, in a network environment (100), an electronic device (101) may communicate with an electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with at least one of an electronic device (104) or a server (108) via a second network (199) (e.g., a long-range wireless communication network). According to one embodiment, the electronic device (101) may communicate with the electronic device (104) via the server (108). According to one embodiment, the electronic device (101) may include a processor (120), a memory (130), an input module (150), an audio output module (155), a display module (160), an audio module (170), a sensor module (176), an interface (177), a connection terminal (178), a haptic module (179), a camera module (180), a power management module (188), a battery (189), a communication module (190), a subscriber identification module (196), or an antenna module (197). In one embodiment, the electronic device (101) may have at least one of these components (e.g., the connection terminal (178)) omitted, or one or more other components added. In one embodiment, some of these components (e.g., the sensor module (176), the camera module (180), or the antenna module (197)) may be integrated into one component (e.g., the display module (160)).
[0028] The processor (120) may control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) by executing, for example, software (e.g., a program (140)), and may perform various data processing or calculations. According to one embodiment, as at least a part of the data processing or calculation, the processor (120) may store a command or data received from another component (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the command or data stored in the volatile memory (132), and store the resulting data in a non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or a secondary processor (123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together therewith. For example, if the electronic device (101) includes a main processor (121) and a secondary processor (123), the secondary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a specified function. The secondary processor (123) may be implemented separately from the main processor (121) or as a part thereof.
[0029] The auxiliary processor (123) may control at least a part of functions or states associated with at least one component (e.g., a display module (160), a sensor module (176), or a communication module (190)) of the electronic device (101), for example, on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (123) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (180) or a communication module (190)). In one embodiment, the auxiliary processor (123) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, on the electronic device (101) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (108)). The learning algorithm can include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model can include multiple artificial neural network layers.The artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.
[0030] The memory (130) can store various data used by at least one component (e.g., a processor (120) or a sensor module (176)) of the electronic device (101). The data can include, for example, software (e.g., a program (140)) and input data or output data for commands related thereto. The memory (130) can include a volatile memory (132) or a non-volatile memory (134).
[0031] The program (140) may be stored as software in the memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).
[0032] The input module (150) can receive commands or data to be used in a component of the electronic device (101) (e.g., a processor (120)) from an external source (e.g., a user) of the electronic device (101). The input module (150) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).
[0033] The audio output module (155) can output audio signals to the outside of the electronic device (101). The audio output module (155) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. According to one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.
[0034] The display module (160) can visually provide information to an external party (e.g., a user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. 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 a force generated by the touch.
[0035] The audio module (170) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150), output sound through the sound output module (155), or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (101).
[0036] The sensor module (176) can detect the operating status (e.g., power or temperature) of the electronic device (101) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one embodiment, the sensor module (176) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.
[0037] The interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) with an external electronic device (e.g., the electronic device (102)). In one embodiment, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.
[0038] The connection terminal (178) may include a connector through which the electronic device (101) may be physically connected to an external electronic device (e.g., the electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).
[0039] A haptic module (179) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. According to one embodiment, the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.
[0040] The camera module (180) can capture still images and videos. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.
[0041] The power management module (188) can manage power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented as, for example, at least a part of a power management integrated circuit (PMIC).
[0042] A battery (189) may power at least one component of the electronic device (101). In one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.
[0043] The communication module (190) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may operate independently from the processor (120) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (190) may include a wireless communication module (192) (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (194) (e.g., a local area network (LAN) communication module, or a power line communication module). Among these communication modules, the corresponding communication module can communicate with an external electronic device (104) via a first network (198) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (199) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules can be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can verify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) by using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196).
[0044] The wireless communication module (192) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). The NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (192) can support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (192) can support various requirements specified in the electronic device (101), an external electronic device (e.g., the electronic device (104)), or a network system (e.g., the second network (199)). According to one embodiment, the wireless communication module (192) may support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for URLLC realization.
[0045] The antenna module (197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). According to one embodiment, the antenna module (197) may include an antenna including a radiator formed 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 the first network (198) or the second network (199), may be selected from the plurality of antennas, for example, by the communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device via the selected at least one antenna. According to one embodiment, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (197).
[0046] In one embodiment, the antenna module (197) may form a mmWave antenna module. In one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high-frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high-frequency band.
[0047] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).
[0048] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) via a server (108) connected to a second network (199). Each of the external electronic devices (102 or 104) may be the same or a different type of device as the electronic device (101). According to one embodiment, all or part of the operations executed in the electronic device (101) may be executed in one or more of the external electronic devices (102, 104, or 108). For example, when the electronic device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (101) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least a part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In one embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server utilizing machine learning and / or a neural network. According to one embodiment, the external electronic device (104) or the server (108) may be included in the second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.
[0049] Electronic devices according to the embodiments disclosed in this document may take various forms. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to the embodiments disclosed in this document are not limited to the aforementioned devices.
[0050] The embodiments of this document and the terminology used herein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.
[0051] The term "module" used in the 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. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).
[0052] Embodiments of the present document may be implemented as software (e.g., a program (140)) including one or more instructions stored in a storage medium (e.g., an internal memory (136) or an external memory (138)) readable by a machine (e.g., an electronic device (101)). For example, a processor (e.g., a processor (120)) of the machine (e.g., an electronic device (101)) may call at least one instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.
[0053] According to one embodiment, the method according to the embodiments disclosed in the present document may be provided as included in a computer program product. The computer program product may be traded as a product between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read-only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) via an application store (e.g., Play Store™) or directly between two user devices (e.g., smart phones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.
[0054] According to embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to embodiments, operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.
[0055] FIG. 2 is a block diagram illustrating a camera module according to one embodiment.
[0056] 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 a target of image capturing. 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 that are different from the lens properties of the other lens assemblies. A lens assembly (210) may include, for example, a wide-angle lens or a telephoto lens.
[0057] The flash (220) can emit light used to enhance light emitted or reflected from a subject. According to one embodiment, the flash (220) can include one or more light-emitting diodes (e.g., red-green-blue (RGB) LED, white LED, infrared LED, or ultraviolet LED), or a xenon lamp. The image sensor (230) can acquire an image corresponding to the subject by converting light emitted or reflected from the subject and transmitted through the lens assembly (210) into an electrical signal. According to one embodiment, the image sensor (230) can include one image sensor selected from among image sensors having different properties, such as, for example, an RGB sensor, a black and white (BW) sensor, an IR sensor, or a UV sensor, a plurality of image sensors having the same property, or a plurality of image sensors having different properties. Each image sensor included in the image sensor (230) can be implemented using, for example, a CCD (charged coupled device) sensor or a CMOS (complementary metal oxide semiconductor) sensor.
[0058] 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 operating characteristics of the image sensor (230) (e.g., adjusting the read-out timing, etc.) in response to the movement of the camera module (180) or the electronic device (101) including the same. This allows compensating for at least some of the negative effects of the movement on the captured image. In one embodiment, the image stabilizer (240) can detect such movement of the camera module (180) or the electronic device (101) by using a gyro sensor (not shown) or an acceleration sensor (not shown) disposed inside or outside the camera module (180). In one embodiment, the image stabilizer (240) can be implemented as, for example, an optical image stabilizer. The memory (250) can temporarily store at least a portion of the image acquired through the image sensor (230) for the next image processing task. For example, when image acquisition is delayed due to the shutter, or when multiple images are acquired at high speed, the acquired original image (e.g., a Bayer-patterned image or a high-resolution image) is stored in the memory (250), and a corresponding copy image (e.g., a low-resolution image) can be previewed through the display module (160). Thereafter, when a specified condition is satisfied (e.g., a user input or a system command), at least a portion of the original image stored in the memory (250) can be acquired and processed, for example, by the image signal processor (260). According to one embodiment, the memory (250) can be configured as at least a portion of the memory (130) or as a separate memory that operates independently therefrom.
[0059] The image signal processor (260) can perform one or more image processing operations on an image acquired through an image sensor (230) or an image stored in a memory (250). The one or more image processing operations may include, for example, depth map generation, 3D modeling, panorama generation, feature point extraction, image synthesis, or image compensation (e.g., noise reduction, resolution adjustment, brightness adjustment, blurring, sharpening, or softening). Additionally or alternatively, the image signal processor (260) may perform control (e.g., exposure time control, read-out timing control, etc.) on at least one of the components included in the camera module (180) (e.g., image sensor (230)). An image processed by the image signal processor (260) may be stored back in the memory (250) for further processing or provided to an external component of the camera module (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) may include at least one of the processors (120). It may be configured as a separate processor that is configured as a part of the processor (120) or 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 undergoing additional image processing by the processor (120).
[0060] According to one embodiment, the electronic device (101) may include a plurality of camera modules (180), each having different properties or functions. In this case, for example, at least one of the plurality of camera modules (180) may be a wide-angle camera, and at least another may be a telephoto camera. Similarly, at least one of the plurality of camera modules (180) may be a front camera, and at least another may be a rear camera.
[0061] Figure 3 is a perspective view of an electronic device in one direction according to one embodiment. Figure 4 is a perspective view of an electronic device in another direction according to one embodiment.
[0062] Referring to FIGS. 3 and 4 , an electronic device (301) (e.g., the electronic device (101) of FIG. 1 and / or the electronic device (101) of FIG. 2 ) may include a housing (310) having a first side (310A) (e.g., a front side), a second side (310B) (e.g., a back side), and a third side (310C) (e.g., a side side) surrounding a space between the first side (310A) and the second side (310B). The first side (310A) may be formed by a first plate (311A) that is at least partially transparent. For example, the first plate (311A) may include a glass plate or a polymer plate that includes at least one coating layer. The second side (310B) may be formed by a second plate (311B) that is substantially opaque. For example, the second plate (311B) may be formed of coated or colored glass, ceramic, polymer, metal (e.g., aluminum, stainless steel (STS), or magnesium), or a combination thereof. The third surface (310C) may be formed by a frame (311C) that is joined to the first plate (311A) and the second plate (311B) and includes a metal and / or polymer. The second plate (311B) and the frame (311C) may be formed monolithically. The second plate (311B) and the frame (311C) may be formed of substantially the same material (e.g., aluminum).
[0063] The electronic device (301) may include an input module (350) (e.g., the input module (150) of FIG. 1). The input module (350) may be disposed on the third surface (310C). The input module (350) may include at least one key input device. For example, the key input device may include one or more mechanical actuators (e.g., buttons), one or more capacitors, and / or one or more inductors.
[0064] The electronic device (301) may include an audio output module (355) (e.g., the audio output module (155) of FIG. 1). The audio output module (355) may be disposed on the third surface (310C). The audio output module (355) may include one or more holes.
[0065] The electronic device (301) may include a display module (361) (e.g., the display module (160) of FIG. 1). The display module (361) may be disposed on the first surface (310A). The display module (361) may be visible through at least a portion of the first plate (311A). The display module (361) may have a shape substantially the same as the shape of the outer edge of the first plate (311A). The edge of the display module (361) may substantially coincide with the outer edge of the first plate (311A). The display module (361) may include a touch detection circuit, a pressure sensor capable of measuring the intensity (pressure) of a touch, and / or a digitizer capable of detecting a magnetic stylus pen. The display module (361) may include a screen display area (361A) that is visually exposed and displays content through pixels. The display area (361A) may include a sensing area (361A-1). The sensing area (361A-1) may overlap with at least a portion of the display area (361A). The sensing area (361A-1) may allow transmission of an input signal related to the sensor module (376) (e.g., the sensor module (176) of FIG. 1 ). The sensing area (361A-1) may display content similarly to the display area (361A) that does not overlap with the sensing area (361A-1). For example, the sensing area (361A-1) may display content while the sensor module (376) is not operating. At least a portion of the camera area (361A-2) may overlap with the display area (361A). The display area (361A) may include the camera area (361A-2). The camera area (361A-2) may allow transmission of an optical signal associated with a first camera module (380A) (e.g., the camera module (180) of FIG. 1 and / or the camera module (180) of FIG. 2). The camera area (361A-2) may also be referred to as a “display hole.”The camera area (361A-2) may have a substantially circular or oval shape. In one embodiment not shown, the display module (361) may include at least one or a combination of an audio module (370), a sensor module (376), a first camera module (380A), or a light-emitting element (not shown) on the back surface (e.g., the +Z-direction surface) of the screen display area (361A). For example, the electronic device (301) may have a camera module (e.g., the first camera module (380A)) disposed on the back surface of at least one of the first surface (310A) (e.g., the front surface) or the third surface (310C) (e.g., the side surface) so as to face the first surface (310A) and / or the third surface (310C). For example, the first camera module (380A) may not be visually exposed to the screen display area (361A) and may include an under display camera (UDC), which may also be referred to as an “under panel camera.”
[0066] The electronic device (301) may include an audio module (370) (e.g., the audio module (170) of FIG. 1). The audio module (370) may be positioned on the third surface (310C). The audio module (370) may obtain sound through at least one hole.
[0067] The electronic device (301) may include a sensor module (376). The sensor module (376) may be disposed on the first surface (310A). The sensor module (376) may form a sensing area (361A-1) in at least a portion of the screen display area (361A). The sensor module (376) may receive an input signal passing through the sensing area (361A-1) and generate an electrical signal based on the received input signal. For example, the input signal may have a specified physical quantity (e.g., heat, light, temperature, sound, pressure, ultrasound). The input signal may include a signal related to a user's biometric information (e.g., a fingerprint).
[0068] The electronic device (301) may include a connection terminal (378) (e.g., the connection terminal (178) of FIG. 1). The connection terminal (378) may be positioned on the third surface (310C). For example, when the electronic device (301) is viewed in one direction (e.g., the +X direction), the connection terminal (378) may be positioned substantially in the center of the third surface (310C), and the audio output module (355) may be positioned on one side (e.g., the right) with respect to the connection terminal (378).
[0069] The electronic device (301) may include a first camera module (380A) (e.g., the camera module (180) of FIG. 1 and / or the camera module (180) of FIG. 2). The first camera module (380A) may be disposed on the first surface (310A). At least a portion of the first camera module (380A) may be disposed below the display module (361). The first camera module (380A) may receive an optical signal that passes through the camera area (361A-2).
[0070] The electronic device (301) may include a plurality of second camera modules (380B) (e.g., the camera module (180) of FIG. 1 and / or the camera module (180) of FIG. 2). The plurality of second camera modules (380B) may be arranged on the second surface (310B). The plurality of second camera modules (380B) may be arranged in a first row in one direction (e.g., the X-axis direction) of the second plate (311B). The plurality of second camera modules (380B) may have different fields of view. For example, the plurality of second camera modules (380B) may include an ultra wide-angle camera, a wide-angle camera, and / or a tele camera.
[0071] The electronic device (301) may include an optical module (380C) (e.g., a flash (220) of FIG. 2). The optical module (380C) may be arranged in a second row substantially parallel to the first row of the plurality of second camera modules (380B) on the second surface (310B). The optical module (380C) may include one or more light-emitting diodes or xenon lamps. The optical module (380C) may include a sensor configured to detect external light. For example, the sensor may include a flicker sensor.
[0072] The electronic device (301) may include a third camera module (380D). The pixels, magnification, and / or field of view of the third camera module (380D) may be different from the pixels, magnification, and / or field of view of at least one second camera module (380B). The third camera module (380D) may be arranged in a second row substantially parallel to the first row of the plurality of second camera modules (380B) on the second surface (310B).
[0073] The electronic device (301) may include a fourth camera module (380E). The fourth camera module (380E), which may also be referred to as a "depth camera" or a "time-of-flight (ToF) camera," may be configured to measure a distance between the fourth camera module (380E) and a subject. For example, the fourth camera module (380E) may be configured to measure the distance using at least one or a combination of ultrasound, infrared, or laser. The fourth camera module (380E) may be arranged in a second row substantially parallel to the first row of the plurality of second camera modules (380B) on the second surface (310B).
[0074] Meanwhile, the embodiments disclosed in this document can be applied to electronic devices of various shapes / forms (e.g., foldable electronic devices, slideable electronic devices, rollable electronic devices, digital cameras, digital video cameras, tablets, note-shaped electronic devices, and other electronic devices) in addition to the electronic devices illustrated in FIGS. 3 and 4.
[0075] In this document, terms such as "substantially," "approximately," "typically," and "about" when referring to a given parameter, property, or condition may include the extent to which a person of ordinary skill in the art would understand the given parameter, property, or condition to be satisfied with a small degree of variance, such as within acceptable manufacturing tolerances. For example, a particular parameter that is substantially satisfied may be satisfied at least 90% of the time, at least 95% of the time, or at least 99% of the time.
[0076] FIG. 5 is a perspective view of a camera module according to one embodiment. FIG. 6 is an exploded perspective view of a camera module according to one embodiment. FIG. 7 is a plan view of a camera module according to one embodiment. FIG. 8 is a side view of a camera module in one direction according to one embodiment. FIG. 9 is a plan view of a camera module according to one embodiment. FIG. 10 is a side view of a camera module in another direction according to one embodiment.
[0077] Referring to FIGS. 5 to 10, a camera module (400) (e.g., the camera module (180) of FIG. 1, the camera module (180) of FIG. 2, and / or the second camera module (380B) of FIGS. 3 and 4) may include a lens assembly (410) (e.g., the lens assembly (210) of FIG. 2). The lens assembly (410) may include at least one lens (411) having a defined optical axis (A). A portion of the optical axis (A) may be defined as a line connecting a center of curvature of a first surface and a center of curvature of an Nth surface (N is a natural number) of at least one lens (411). The lens assembly (410) may include a lens housing (412) configured to accommodate at least one lens (411). The lens housing (412) may also be referred to as a “lens barrel” or a “lens holder”.
[0078] The camera module (400) may include a camera housing (420). The camera housing (420) may be configured to accommodate one or more camera-related components. The camera housing (420) may include a base frame (421) and a cover frame (422) configured to cover the base frame (421).
[0079] The base frame (421) may include a bottom portion (421A) and a plurality of side walls (421B, 421C, 421D, 421E) connected to the bottom portion (421A). The plurality of side walls (421B, 421C, 421D, 421E) include a first side wall (421B) (e.g., a +X-direction side wall), a second side wall (421C) opposite the first side wall (421B) (e.g., a -X-direction side wall), a third side wall (421D) connecting the first side wall (421B) and the second side wall (421C) and located between the first side wall (421B) and the second side wall (421C) (e.g., a +Y-direction side wall), and a fourth side wall (421E) connecting the first side wall (421B) and the second side wall (421C) and located between the first side wall (421B) and the second side wall (421C) and opposite the third side wall (421D) (e.g., a -Y-direction side wall). Can be.
[0080] The bottom portion (421A) may include a base center hole (CH1) that allows light passing through at least one lens (411) to pass through to the image sensor. The first side wall (421B) may include a first housing hole (H1). The second side wall (421C) may include a substantially entirely closed surface. The third side wall (421D) may include a second housing hole (H2). The fourth side wall (421E) may include a third housing hole (H3).
[0081] The base frame (421) may include a plurality of first guides (G1) each configured to guide at least one ball (B). The plurality of first guides (G1) may be respectively arranged in a first corner region between a first side wall (421B) and a fourth side wall (421E), and a second corner region between a second side wall (421C) and the fourth side wall (421E). The plurality of first guides (G1) may generally include at least one of a V-shaped groove or a U-shaped groove.
[0082] The cover frame (422) may include a top portion (422A), a plurality of second side walls (422B) connected to the top portion (422A), and a cover hole (422C) disposed in the top portion (422A). The lens housing (412) may at least partially pass through the cover hole (422C). The cover frame (422) may be referred to as a “shield can.”
[0083] Although not shown, the camera module (400) may include an image sensor and a printed circuit board configured to transmit electrical signals converted from the image sensor to other components (e.g., the processor (120) of FIG. 1 and / or the image signal processor (260) of FIG. 2).
[0084] The camera module (400) may include an auto focus (AF) actuator (440) configured to drive at least one lens (411) in a direction along the optical axis (A) (e.g., in the Z-axis direction).
[0085] The AF actuator (440) may include an AF carrier (441) configured to transport a lens housing (412) in a direction along the optical axis (A) (e.g., in the Z-axis direction). The AF carrier (441) may include an AF carrier base (441A) and a plurality of AF carrier walls (441B, 441C, 441D) connected to the AF carrier base (441A). The plurality of AF carrier walls (441B, 441C, 441D) may include a first AF carrier wall (441B) (e.g., a +X-direction AF carrier wall), a second AF carrier wall (441C) opposite to the first AF carrier wall (441B) (e.g., a -X-direction AF carrier wall), and a third AF carrier wall (441D) (e.g., a -Y-direction AF carrier wall) between the first AF carrier wall (441B) and the second AF carrier wall (441C). The AF carrier base (441A) may include an AF center hole (CH2) through which the lens housing (412) at least partially passes. The first AF carrier wall (441B) and the second AF carrier wall (441C) may be at least partially open. The third AF carrier wall (441D) may be substantially entirely closed.
[0086] The AF carrier (441) may include a plurality of first protrusions (441F). The plurality of first protrusions (441F) may protrude from the first AF carrier wall (441B) and the second AF carrier wall (441C) in a first direction (e.g., in the X-axis direction) substantially orthogonal to the optical axis (A). The plurality of first protrusions (441F) may be respectively arranged in an area on a first side (e.g., a +Y-direction side) away from the third AF carrier wall (441D) and an area on a second side (e.g., a -Y-direction side) adjacent to the third AF carrier wall (441D).
[0087] The AF carrier (441) may include a plurality of second guides (G2) configured to guide at least one ball (B), respectively. The plurality of second guides (G2) may be respectively arranged at corner regions located on both sides of the third AF carrier wall (441D). The plurality of second guides (G2) may each face a corresponding first guide (G1). The plurality of second guides (G2) may generally include at least one of a V-shaped groove or a U-shaped groove.
[0088] The AF actuator (440) may include an AF magnet (442). The AF magnet (442) may include a magnet oriented in a direction along the optical axis (A) (e.g., in the Z-axis direction). The AF magnet (442) may be disposed on the third AF carrier wall (441D).
[0089] The AF actuator (440) may include an AF coil (443). The AF coil (443) may be configured to be electromagnetically coupled with an AF magnet (442). When current flows through the AF coil (443), a driving force may be generated in the AF magnet (442) in a direction along the optical axis (A) (e.g., in the Z-axis direction). The AF coil (443) may face the AF magnet (442). The AF coil (443) may be disposed in the third housing hole (H3).
[0090] The AF actuator (440) may include an AF sensor (444). The AF sensor (444) may be configured to detect the magnetic flux density of the AF magnet (442). For example, the AF sensor (444) may include a Hall sensor or a tunnel magneto-resistance (TMR) sensor. The AF sensor (444) may include a drive integrated circuit (IC). The AF sensor (444) may be disposed outside the AF coil (443). Although not shown, the AF sensor (444) may also be disposed inside the AF coil (443).
[0091] The AF actuator (440) may include a yoke (Y) configured to attract the AF magnet (442) in a direction substantially orthogonal to the optical axis (A) (e.g., -Y direction). The yoke (Y) may face the AF magnet (442) by positioning the AF coil (443) between the yoke (Y) and the AF magnet (442). An attractive force acting between the AF magnet (442) and the yoke (Y) may reduce or prevent movement (e.g., tilt) of the AF carrier (441) in a direction other than the direction along the optical axis (A) (e.g., Z-axis direction).
[0092] The camera module (400) may include a plurality of balls (B). At least two of the balls (B) among the plurality of balls (B) may be in cloud contact with one of the plurality of first guides (G1) (e.g., the first guide (G1) disposed in a corner area between the second side wall (421C) and the fourth side wall (421E)) and a second guide (G2) facing the first guide (G1) among the plurality of second guides (G2) (e.g., the second guide (G2) located on the -X direction side). At least one ball (B) among the plurality of balls (B) can be in rolling contact with another first guide (G1) among the plurality of first guides (G1) (e.g., a first guide (G1) disposed in a corner area between the first side wall (421B) and the fourth side wall (421E)), and a second guide (G2) facing another first guide (G1) among the plurality of second guides (G2) (e.g., a second guide (G2) located on the +X direction side).
[0093] The camera module (400) may include an optical image stabilizing (OIS) actuator (450) configured to drive at least one lens (411) in a direction substantially orthogonal to the optical axis (A) (e.g., in the XY plane direction).
[0094] The OIS actuator (450) may include an OIS carrier (451) configured to transport the lens housing (412) in a direction substantially orthogonal to the optical axis (A) (e.g., in the XY plane direction). The OIS carrier (451) may include a first OIS carrier wall (451A) (e.g., a +X-direction OIS carrier wall), a second OIS carrier wall (451B) opposite the first OIS carrier wall (451A) (e.g., a -X-direction OIS carrier wall), a third OIS carrier wall (451C) between the first OIS carrier wall (451A) and the second OIS carrier wall (451B) (e.g., a +Y-direction OIS carrier wall), and a fourth OIS carrier wall (451D) opposite the third OIS carrier wall (451C) and between the first OIS carrier wall (451A) and the second OIS carrier wall (451B) (e.g., a -Y-direction carrier wall). The OIS carrier (451) may include an OIS center hole (CH3) defined by a first OIS carrier wall (451A), a second OIS carrier wall (451B), a third OIS carrier wall (451C), and a fourth OIS carrier wall (451D). The lens housing (412) may at least partially pass through the OIS center hole (CH3). The OIS carrier (451) may be disposed inside the AF carrier (441).
[0095] The OIS carrier (451) may include a plurality of second protrusions (451F). The plurality of second protrusions (451F) may protrude from the third OIS carrier wall (451C) and the fourth OIS carrier wall (451D) in a second direction (e.g., the Y-axis direction) substantially orthogonal to the optical axis (A) and the first direction (e.g., the X-axis direction). The plurality of second protrusions (451F) may be respectively disposed in a region on a first side (e.g., the +X-direction side) of the third OIS carrier wall (451C) adjacent to the first OIS carrier wall (451A), and in a region on a second side (e.g., the -X-direction side) of the third OIS carrier wall (451C) adjacent to the second OIS carrier wall (451B).
[0096] The OIS actuator (450) may include a first OIS magnet (452A). The first OIS magnet (452A) may include a magnet magnetized in a first direction (e.g., the X-axis direction) substantially orthogonal to the optical axis (A). The first OIS magnet (452A) may be disposed in a recess in the first OIS carrier wall (451A).
[0097] The OIS actuator (450) may include a second OIS magnet (452B). The second OIS magnet (452B) may include a magnet oriented in a second direction (e.g., the Y-axis direction) substantially orthogonal to the optical axis (A) and the first direction (e.g., the X-axis direction). The second OIS magnet (452B) may be disposed in a recess of the third OIS carrier wall (451C).
[0098] The OIS actuator (450) may include a first OIS coil (453A). When current flows through the first OIS coil (453A), a driving force in a first direction (e.g., X-axis direction) substantially orthogonal to the optical axis (A) may be generated in the first OIS magnet (452A). The first OIS coil (453A) may face the first OIS magnet (452A). The first OIS coil (453A) may be disposed in the first housing hole (H1).
[0099] The OIS actuator (450) may include a second OIS coil (453B). When current flows through the second OIS coil (453B), a driving force may be generated in a second direction (e.g., Y-axis direction) substantially orthogonal to the optical axis (A) and the first direction (e.g., X-axis direction) to the second OIS magnet (452B). The second OIS coil (453B) may face the second OIS magnet (452B). The second OIS coil (453B) may be disposed in the second housing hole (H2).
[0100] The OIS actuator (450) may include a first OIS sensor (454A). The first OIS sensor (454A) may be configured to detect the magnetic flux density of the first OIS magnet (452A). For example, the first OIS sensor (454A) may include a Hall sensor or a tunnel magnetoresistance (TMR) sensor. The first OIS sensor (454A) may include an OIS drive integrated circuit (IC). The first OIS sensor (454A) may be disposed inside the first OIS coil (453A). Although not shown, the first OIS sensor (454A) may also be disposed outside the first OIS coil (453A).
[0101] The OIS actuator (450) may include a second OIS sensor (454B). The second OIS sensor (454B) may be configured to detect the magnetic flux density of the second OIS magnet (452B). For example, the second OIS sensor (454B) may include a Hall sensor or a tunnel magnetoresistance (TMR) sensor. The second OIS sensor (454B) may include an OIS drive integrated circuit (IC). The second OIS sensor (454B) may be disposed inside the second OIS coil (453B). Although not shown, the second OIS sensor (454B) may also be disposed outside the second OIS coil (453B).
[0102] The camera module (460) may include a middle carrier (461) configured to move in a specific direction (e.g., X-axis direction) substantially orthogonal to the optical axis (A). The middle carrier (461) may also be referred to as a “spring holder.” When a driving force is generated in a first direction (e.g., X-axis direction) substantially orthogonal to the optical axis (A) due to electromagnetic coupling between the first OIS magnet (452A) and the first OIS coil (453A), the AF carrier (441) may function as a fixed platform, and the middle carrier (461) may be configured to move in the first direction together with the OIS carrier (451) as a movable platform. When a driving force is generated in a second direction (e.g., Y-axis direction) substantially orthogonal to the optical axis (A) and the first direction (e.g., X-axis direction) due to the electromagnetic coupling between the second OIS magnet (452B) and the second OIS coil (453B), the middle carrier (461) may function as a fixed platform, and the OIS carrier (451) may be configured to move in the second direction (e.g., Y-axis direction) as a movable platform. The middle carrier (461) may be arranged inside the AF carrier (441).
[0103] The middle carrier (461) may include a first carrier side surface (461A) (e.g., a +X-direction carrier side surface), a second carrier side surface (461B) opposite the first carrier side surface (461A) (e.g., a -X-direction carrier side surface), a third carrier side surface (461C) between the first carrier side surface (461A) and the second carrier side surface (461B) (e.g., a +Y-direction carrier side surface), and a fourth carrier side surface (461D) opposite the third carrier side surface (461C) and between the first carrier side surface (461A) and the second carrier side surface (461B) (e.g., a -Y-direction carrier side surface). The first carrier side face (461A), the second carrier side face (461B), the third carrier side face (461C), and the fourth carrier side face (461D) can be at least partially open.
[0104] The middle carrier (461) may include a middle carrier base (462) and a plurality of pillars (463) respectively arranged at corner regions of the middle carrier base (462). The plurality of pillars (463) may be respectively arranged at a corner region between the first carrier side face (461A) and the third carrier side face (461C), a corner region between the second carrier side face (461B) and the third carrier side face (461C), a corner region between the first carrier side face (461A) and the fourth carrier side face (461D), and a corner region between the second carrier side face (461B) and the fourth carrier side face (461D). Each pillar (463) may include a third protrusion (463A) protruding in a first direction (e.g., X-axis direction) substantially orthogonal to the optical axis (A), and a fourth protrusion (463B) protruding in a second direction (e.g., Y-axis direction) substantially orthogonal to the optical axis (A) and the first direction.
[0105] The camera module (400) may include a plurality of first sheet springs (470). The plurality of first sheet springs (470) may be configured to elastically deform when a driving force is generated in a first direction (e.g., an X-axis direction). The plurality of first sheet springs (470) may be configured to elastically support a middle carrier (461) (functioning as a movable platform) with respect to an AF carrier (441) (functioning as a fixed platform).
[0106] The first sheet spring (470) may include a plurality of first fixing parts (471) fixed to the AF carrier (441), a plurality of second fixing parts (472) fixed to the middle carrier (461), a plurality of first movable arms (473) connecting each of the first fixing parts (471) and each of the second fixing parts (472), and a plurality of first extension parts (474) connecting the plurality of first fixing parts (471) and extending along one side surface (e.g., + / - X-direction side surface) of the AF carrier (441).
[0107] The first fixed portion (471) may include a first plate (471A) and a first hole (471B) defined in the first plate (471A) and configured to engage with the first protrusion (441F).
[0108] The second fixed portion (472) may include a first loop configured to engage with the third protrusion (463A). The first loop may include a substantially circular shape.
[0109] The first movable arm (473) may include a first horizontal extension arm (473A) extending from one first fixing portion (471) toward another first fixing portion (471) along a first extension portion (474), and a first vertical extension arm (473B) connecting the first horizontal extension arm (473A) and the second fixing portion (472) and extending away from the first extension portion (474) in a direction (e.g., + / - Z direction). In an embodiment not shown, the first movable arm (473) may have a meander shape. This may reduce a spring constant of the first movable arm (473). When a driving force is generated in a first direction (e.g., X-axis direction), a deformation of the first movable arm (473) in the first direction may increase.
[0110] The width (e.g., dimension in the Z-axis direction) of the first movable arm (473) may be substantially equal to or greater than the thickness (e.g., dimension in the X-axis direction) of the first movable arm (473). This may reduce or prevent movement of the lens (411) in a direction other than the first direction when a driving force in the first direction (e.g., direction in the X-axis direction) is generated.
[0111] Any one of the plurality of first sheet springs (470) may be disposed between the first OIS magnet (452A) and the first OIS coil (453A).
[0112] A plurality of first sheet springs (470) may be arranged opposite to each other with respect to the lens (411). A plurality of first sheet springs (470) may be arranged symmetrically with respect to the middle carrier (461) (which functions as a movable platform).
[0113] When a driving force is generated in a first direction (e.g., X-axis direction) substantially orthogonal to the optical axis (A), the AF carrier (441) can be driven in the first direction (e.g., X-axis direction) while the middle carrier (461) is substantially fixed. The plurality of first movable arms (473) can limit the movement of the middle carrier (461) in a direction along the optical axis (A) (e.g., Z-axis direction) and / or the movement of the middle carrier (461) in a second direction (e.g., Y-axis direction) substantially orthogonal to the optical axis (A) and the first direction (e.g., X-axis direction). The plurality of first movable arms (473) can reduce or prevent rotation of the lens (411) about the optical axis (A), which is referred to as “cross-talk.”
[0114] The camera module (400) may include a plurality of second sheet springs (475). The plurality of second sheet springs (475) may be configured to elastically deform when a driving force is applied in a second direction (e.g., in the Y-axis direction). The plurality of second sheet springs (475) may be configured to elastically support the OIS carrier (451) (which functions as a movable platform) relative to the middle carrier (461) (which functions as a fixed platform).
[0115] The second sheet spring (475) may include a plurality of third fixing parts (476) fixed to the middle carrier (461), a plurality of fourth fixing parts (477) fixed to the OIS carrier (451), a plurality of second movable arms (478) connecting each of the third fixing parts (476) and each of the fourth fixing parts (477), and a plurality of second extension parts (479) connecting the plurality of third fixing parts (476) and extending along one side surface (e.g., + / -Y direction side surface) of the OIS carrier (451).
[0116] The third fixed portion (476) may include a second plate (476A) and a second hole (476B) defined in the second plate (476A) and configured to engage with the fourth protrusion (463B).
[0117] The fourth fixed portion (477) may include a second loop configured to engage with the second protrusion (451F). The second loop may include a substantially circular shape.
[0118] The second movable arm (478) may include a second horizontal extension arm (478A) extending along the second extension portion (479) from one third fixing portion (476) toward the other third fixing portion (476), and a second vertical extension arm (478B) connecting the second horizontal extension arm (478A) and the fourth fixing portion (477) and extending away from the second extension portion (479) in a direction (e.g., + / - Z direction). In an embodiment not shown, the second movable arm (478) may have a meander shape. This may reduce the spring constant of the second movable arm (478). When a driving force is generated in the second direction (e.g., Y direction), the deformation of the second movable arm (478) in the second direction may increase.
[0119] The width (e.g., dimension in the Z-axis direction) of the second movable arm (478) may be substantially equal to or greater than the thickness (e.g., dimension in the Y-axis direction) of the second movable arm (478). This may reduce or prevent movement of the lens (411) in a direction other than the second direction when a driving force in the second direction (e.g., direction in the Y-axis direction) is generated.
[0120] Any one of the plurality of second sheet springs (475) may be disposed between the second OIS magnet (452B) and the second OIS coil (453B).
[0121] A plurality of second sheet springs (475) may be arranged opposite to each other with respect to the lens (411). A plurality of second sheet springs (475) may be arranged symmetrically with respect to the OIS carrier (451) (which functions as a movable platform).
[0122] When a driving force is generated in a second direction (e.g., Y-axis direction) substantially orthogonal to the optical axis (A) and the first direction (e.g., X-axis direction), the OIS carrier (451) can be driven in the second direction (e.g., Y-axis direction) while the middle carrier (461) is substantially fixed. The plurality of second movable arms (478) can limit the movement of the OIS carrier (451) in the direction along the optical axis (A) (e.g., Z-axis direction) and / or the movement of the OIS carrier (451) in the first direction (e.g., X-axis direction) substantially orthogonal to the optical axis (A) and the second direction (e.g., Y-axis direction). The plurality of second movable arms (478) can reduce or prevent rotation of the lens (411) about the optical axis (A), which is referred to as “cross-talk.”
[0123] The camera module (400) may include a flexible printed circuit board (480). The flexible printed circuit board (480) may at least partially surround the base frame (421). The flexible printed circuit board (480) may include a first substrate region (481) (e.g., a +X-direction substrate region) disposed on a first side wall (421B), a second substrate region (482) (e.g., a +Y-direction substrate region) connected to the first substrate region (481) and disposed on a third side wall (421D), and a third substrate region (483) (e.g., a -Y-direction substrate region) connected to the first substrate region (481) and disposed on a fourth side wall (421E) opposite to the second substrate region (482). An AF coil (443) and an AF sensor (444) may be disposed on the third substrate region (483). The first OIS coil (453A) and the first OIS sensor (454A) may be disposed in the first substrate area (481). The second OIS coil (453B) and the second OIS sensor (454B) may be disposed in the second substrate area (482).
[0124] Figure 11 is an exploded perspective view of a camera module according to one embodiment.
[0125] Referring to FIG. 11, a camera module (400-1) (e.g., the camera module (180) of FIG. 1, the camera module (180) of FIG. 2, the first camera module (380A) and / or the second camera module (380B) of FIGS. 3 and 4, and / or the camera module (400) of FIGS. 5 to 10) may include an OIS carrier (451). The OIS carrier (451) may include a first OIS carrier wall (451A), a second OIS carrier wall (451B), a third OIS carrier wall (451C), and a fourth OIS carrier wall (451D). The first OIS carrier wall (451A) may not include a recess.
[0126] The camera module (400-1) may include a middle carrier (461). The middle carrier (461) may include a first carrier side surface (461A), a second carrier side surface (461B), a third carrier side surface (461C), and a fourth carrier side surface (461D). The middle carrier (461) may include a middle carrier base (462) and a plurality of pillars (463).
[0127] The camera module (400-1) may include a first OIS magnet (452A-1) (e.g., the first OIS magnet (452A) of FIGS. 5 to 10) and a second OIS magnet (452B-1) (e.g., the second OIS magnet (452B) of FIGS. 5 to 10). The first OIS magnet (452A-1) may be disposed on the first carrier side surface (461A). The first OIS magnet (452A-1) may be disposed between a pillar (463) in a corner area between the first carrier side surface (461A) and the third carrier side surface (461C), and a pillar (463) in a corner area between the first carrier side surface (461A) and the fourth carrier side surface (461D). The second OIS magnet (452B-1) can be placed in a recess in the third OIS carrier wall (451C).
[0128] Figure 12 is an exploded perspective view of a camera module according to one embodiment.
[0129] Referring to FIG. 12, a camera module (400-2) (e.g., the camera module (180) of FIG. 1, the camera module (180) of FIG. 2, the first camera module (380A) and / or the second camera module (380B) of FIGS. 3 and 4, the camera module (400) of FIGS. 5 to 10, and / or the camera module (400-1) of FIG. 11) may include an AF actuator (440-2) (e.g., the AF actuator (440) of FIGS. 5 to 10). The AF actuator (440-2) may include an AF magnet (442), an AF coil (443), and a yoke (445).
[0130] The camera module (400-2) may include an OIS actuator (450-2) (e.g., the OIS actuator (450) of FIGS. 5 to 10). The OIS actuator (450-2) may include a first OIS magnet (452A-2) (e.g., the first OIS magnet (452A) of FIGS. 5 to 10 and / or the first OIS magnet (452A-1) of FIG. 11), a second OIS magnet (452B) (e.g., the second OIS magnet (452B) of FIGS. 5 to 10 and / or the second OIS magnet (452B-1) of FIG. 11), a first OIS coil (453A), and a second OIS coil (453B). The first OIS magnet (452A) can be magnetized to have a single polarization when viewed in a first direction (e.g., the X-axis direction) in which the first OIS magnet (452A) is disposed. The second OIS magnet (452B) can be magnetized to have a single polarization when viewed in a second direction (e.g., the Y-axis direction) in which the second OIS magnet (452B) is disposed.
[0131] The camera module (400-2) may include a first sheet spring (470) and a second sheet spring (475).
[0132] Figure 13 is an exploded perspective view of a camera module according to one embodiment.
[0133] Referring to FIG. 13, a camera module (400-3) (e.g., the camera module (180) of FIG. 1, the camera module (180) of FIG. 2, the first camera module (380A) and / or the second camera module (380B) of FIGS. 3 and 4, the camera module (400) of FIGS. 5 to 10, the camera module (400-1) of FIG. 11, and / or the camera module (400-2) of FIG. 12) may include an AF actuator (440-3) (e.g., the AF actuator (440) of FIGS. 5 to 10 and / or the AF actuator (440-2) of FIG. 12). The AF actuator (440-3) may include an AF magnet (442), an AF coil (443), and a yoke (445).
[0134] The camera module (400-3) may include an OIS actuator (450-3) (e.g., the OIS actuator (450) of FIGS. 5 to 10 and / or the OIS actuator (450-2) of FIG. 12). The OIS actuator (450-3) includes a first OIS magnet (452A-3) (e.g., the first OIS magnet (452A) of FIGS. 5 to 10, the first OIS magnet (452A-1) of FIG. 11 and / or the first OIS magnet (452A-2) of FIG. 12), a second OIS magnet (452B-3) (e.g., the second OIS magnet (452B) of FIGS. 5 to 10, the second OIS magnet (452B-1) of FIG. 11 and / or the second OIS magnet (452B-2) of FIG. 12), and a plurality of first OIS coils (453A-3) (e.g., the first OIS coil (453A) of FIGS. 5 to 10 and / or the first OIS coil (453A) of FIG. 12). The OIS coil (453A) may include a plurality of second OIS coils (453B-3) (e.g., the second OIS coils (453B) of FIGS. 5 to 10 and / or the second OIS coils (453B) of FIG. 12). The first OIS magnet (452A-3) may be magnetized to have a plurality of polarizations arranged in a second direction (e.g., the Y-axis direction) when viewed in a first direction (e.g., the X-axis direction) in which the first OIS magnet (452A-3) is disposed. The second OIS magnet (452B-3) may be magnetized to have a plurality of polarizations arranged in a first direction (e.g., the X-axis direction) when viewed in a second direction (e.g., the Y-axis direction) in which the second OIS magnet (452B-3) is disposed. A plurality of first OIS coils (453A-3) can face the polarizations of the first OIS magnet (452A-3), respectively. A plurality of second OIS coils (453B-3) can face the polarizations of the second OIS magnet (452B-3), respectively.
[0135] The camera module (400-3) may include a first sheet spring (470) and a second sheet spring (475). The first sheet spring (470) may be disposed between the first OIS magnet (452A-3) and a plurality of first OIS coils (453A-3). The second sheet spring (475) may be disposed between the second OIS magnet (452B-3) and a plurality of second OIS coils (453B-3).
[0136] Fig. 14 is a perspective view of a camera module according to one embodiment. Fig. 15 is a plan view of a camera module according to one embodiment. Fig. 16 is an exploded perspective view of a camera module according to one embodiment. Fig. 17 is a side view of a first sheet spring of a camera module according to one embodiment. Fig. 18 is a side view of a second sheet spring of a camera module according to one embodiment.
[0137] Referring to FIGS. 14 to 18, a camera module (400-4) (e.g., the camera module (180) of FIG. 1, the camera module (180) of FIG. 2, the first camera module (380A) and / or the second camera module (380B) of FIGS. 3 and 4, the camera module (400) of FIGS. 5 to 10, the camera module (400-1) of FIG. 11, the camera module (400-2) of FIG. 12, and / or the camera module (400-3) of FIG. 13) may include a lens assembly (410). The lens assembly (410) may include at least one lens (411) including an optical axis (A). The lens assembly (410) may include a lens housing (412).
[0138] The camera module (400-4) may include a camera housing (420-4) (e.g., the camera housing (420) of FIGS. 5 to 10). The camera housing (420-4) may include a base frame (421-4) (e.g., the base frame (421) of FIGS. 5 to 10). The base frame (421-4) may include a first side wall (421B), a second side wall (421C), a third side wall (421D), and a fourth side wall (421E).
[0139] The base frame (421-4) may include a plurality of first protrusions (421G). At least two of the plurality of first protrusions (421G) may protrude inwardly (e.g., in the -X direction) of the first side wall (421B). At least two of the plurality of first protrusions (421G) may protrude inwardly (e.g., in the +X direction) of the second side wall (421C).
[0140] The camera module (400-4) may include an AF actuator (440-4) (e.g., the AF actuator (440) of FIGS. 5 to 10, the AF actuator (440-2) of FIG. 12, and / or the AF actuator (440-3) of FIG. 13).
[0141] The AF actuator (440-4) may include an AF carrier (441-4) (e.g., the AF carrier (441) of FIGS. 5 to 10). The AF carrier (441-4) may include a first AF carrier wall (441B), a second AF carrier wall (441C), a third AF carrier wall (441D) (e.g., a +Y-direction AF carrier wall), and a fourth AF carrier wall (441E) (e.g., a -Y-direction AF carrier wall) between the first AF carrier wall (441B) and the second AF carrier wall (441C) and opposite the third AF carrier wall (441D).
[0142] The AF actuator (440-4) may include an AF coil (443-4) (e.g., the AF coil (443) of FIGS. 5 to 10). The AF coil (443-4) may be wound circumferentially along the AF carrier walls (441B, 441C, 441D, 441E) of the AF carrier (441-4). The AF coil (443-4) may have a winding axis (e.g., the Z-axis) substantially parallel to the optical axis (A).
[0143] The camera module (400-4) may include an OIS actuator (450-4) (e.g., the OIS actuator (450) of FIGS. 5 to 10, the OIS actuator (450-2) of FIG. 12, and / or the OIS actuator (450-3) of FIG. 13).
[0144] The OIS actuator (450-4) may include an OIS carrier (451-4) (e.g., the OIS carrier (451) of FIGS. 5 to 10 and / or the OIS carrier (451) of FIG. 11). The OIS carrier (451-4) may include a first OIS carrier wall (451A), a second OIS carrier wall (451B), a third OIS carrier wall (451C), and a fourth OIS carrier wall (451D). The OIS carrier (451-4) may be disposed outside the AF carrier (441-4).
[0145] The OIS carrier (451-4) may include a plurality of second protrusions (451F). At least two of the plurality of second protrusions (451F) may protrude inwardly (e.g., in the +Y direction) of the third side wall (421D). At least two of the plurality of second protrusions (451F) may protrude inwardly (e.g., in the -Y direction) of the fourth side wall (421E).
[0146] The camera module (400-4) may include a first magnet (452A), a second magnet (452B), a third magnet (452C), and a fourth magnet (452D). The first magnet (452A) may be disposed on the first OIS carrier wall (451A). The second magnet (452B) may be disposed on the third OIS carrier wall (451C). The third magnet (452C) may be disposed on the second OIS carrier wall (451B). The fourth magnet (452D) may be disposed on the fourth OIS carrier wall (451D). The first magnet (452A) and the third magnet (452C) may be magnetized in a first direction (e.g., the X-axis direction). The second magnet (452B) and the fourth magnet (452D) can be magnetized in a second direction (e.g., in the Y-axis direction).
[0147] The first magnet (452A), the second magnet (452B), the third magnet (452C), and the fourth magnet (452D) can center the OIS carrier (451-4) so that the center of gravity of the OIS carrier (451-4) is positioned within a certain range from the optical axis (A).
[0148] The first magnet (452A), the second magnet (452B), the third magnet (452C), and the fourth magnet (452D) can be configured to electromagnetically couple with the AF coil (443-4). When current flows through the AF coil (443-4), a driving force can be generated in the first magnet (452A), the second magnet (452B), the third magnet (452C), and the fourth magnet (452D) in a direction substantially parallel to the optical axis (A) (e.g., the Z-axis direction).
[0149] The OIS actuator (450-4) may include a first OIS coil (453A), a second OIS coil (453B), a third OIS coil (453C), and a fourth OIS coil (453D). The first OIS coil (453A) may face the first magnet (452A). The first OIS coil (453A) may be disposed on an inner surface (e.g., a -X-direction surface) of the first side wall (421B). The second OIS coil (453B) may face the second magnet (452B). The second OIS coil (453B) may be disposed on an inner surface (e.g., a -Y-direction surface) of the third side wall (421D). The third OIS coil (453C) may face the third magnet (452C). The third OIS coil (453C) may be disposed on an inner surface (e.g., a +X direction surface) of the second side wall (421C). The fourth OIS coil (453D) may face the fourth magnet (452D). The fourth OIS coil (453D) may be disposed on an inner surface (e.g., a +Y direction surface) of the fourth side wall (421E).
[0150] When current flows through the first OIS coil (453A) and the third OIS coil (453C), a driving force in a first direction (e.g., X-axis direction) may be generated in the first magnet (452A) and the third magnet (452C). When current flows through the second OIS coil (453B) and the fourth OIS coil (453D), a driving force in a second direction (e.g., Y-axis direction) may be generated in the second magnet (452B) and the fourth magnet (452D).
[0151] The camera module (400-4) may include a middle carrier (461-4) (e.g., the middle carrier (461) of FIGS. 5 to 10 and / or the middle carrier (461) of FIG. 11). The middle carrier (461-4) may include a middle carrier base (462-4) (e.g., the middle carrier base (462) of FIGS. 5 to 10) and a plurality of pillars (463-4) (e.g., the pillars (463) of FIGS. 5 to 10). The plurality of pillars (463-4) may be respectively arranged at corner regions of the OIS carrier (451-4) and corresponding corner regions of the base frame (421-4) between the base frame (421-4) and the OIS carrier (451-4).
[0152] The camera module (400-4) may include a plurality of first sheet springs (470-4) (e.g., the first sheet springs (470) of FIGS. 5 to 10). The plurality of first sheet springs (470-4) may be configured to elastically deform when a driving force is generated in a first direction (e.g., the X-axis direction). The plurality of first sheet springs (470-4) may elastically support a middle carrier (461-4) (functioning as a movable platform) in the first direction with respect to a base frame (421-4) (functioning as a fixed platform).
[0153] The first sheet spring (470) may include a plurality of first fixing parts (471-4) fixed to the base frame (421-4) (e.g., the first fixing part (471) of FIGS. 5 to 10), second fixing parts (472-4) fixed to each of the plurality of second sheet springs (475-5) (e.g., the second fixing part (472) of FIGS. 5 to 10), and a plurality of first movable arms (473-4) (e.g., the first movable arms (473) of FIGS. 5 to 10) connecting the plurality of first fixing parts (471-4) and the second fixing parts (472-4), respectively.
[0154] The first fixing member (471-4) may include a first loop that is respectively fixed to a plurality of first protrusions (421G). The first loop may at least partially surround the periphery of the first protrusion (421G). The first loop may be at least partially open. The first loop may be configured to engage with the first protrusion (421G).
[0155] The second fixed portion (472-4) may include a first horizontal extension portion (472A-4) and a plurality of first vertical extension portions (472B-4) connected to the first horizontal extension portion (472A-4). One of the plurality of first vertical extensions (472B-4) may be connected to a first end (e.g., a +Y-direction end) of the first horizontal extensions (472A-4) and may be fixed to a pillar (463-4) of the middle carrier (461-4) connected to one of the plurality of second sheet springs (475-4) (e.g., a second sheet spring (475-4) arranged in the +Y-direction), and another first vertical extension (472B-4) may be connected to a second end (e.g., a -Y-direction end) opposite to the first end of the first horizontal extension (472A-4) and may be connected to another second sheet spring (475-4) (e.g., a second sheet spring arranged in the -Y-direction). It can be fixed to the pillar (463-4) of the middle carrier (461-4) connected to the spring (475-4).
[0156] The first movable arm (473-4) extends from the first fixed portion (471-4) along the first vertical extension portion (472B-4), extends from the first vertical extension portion (472B-4) along the first horizontal extension portion (472A-4), has a meander shape, and can be connected to the center portion of the first horizontal extension portion (472A-4).
[0157] One of the plurality of first sheet springs (470-4) may be disposed between the first magnet (452A) and the first OIS coil (453A), and another first sheet spring (470-4) may be disposed between the third magnet (452C) and the third OIS coil (453C).
[0158] The camera module (400-4) may include a plurality of second sheet springs (475-4) (e.g., the second sheet springs (475) of FIGS. 5 to 10). The plurality of second sheet springs (475-4) may be configured to elastically deform when a driving force is generated in a second direction (e.g., the Y-axis direction). The plurality of second sheet springs (475-4) may elastically support the OIS carrier (451-4) (functioning as a movable platform) relative to the middle carrier (461-4) (functioning as a fixed platform) in the second direction.
[0159] The second sheet spring (475-4) may include a third fixing member (476-4) (e.g., the third fixing member (476) of FIGS. 5 to 10) fixed to the base frame (421-4) via a plurality of first sheet springs (470-4), a plurality of fourth fixing members (477-4) (e.g., the fourth fixing member (477) of FIGS. 5 to 10) fixed to the OIS carrier (451-4), and a plurality of second movable arms (478-4) (e.g., the second movable arms (478) of FIGS. 5 to 10) respectively connecting the third fixing members (476-4) and the plurality of fourth fixing members (477-4).
[0160] The third fixed member (476-4) may include a plurality of second horizontal extensions (476A-4), and a plurality of second vertical extensions (476B-4) connected to one of the second horizontal extensions (476A-4) (e.g., the second lower horizontal extension (476A-4)). One of the plurality of second vertical extensions (476B-4) may be connected to a first end (e.g., +X-direction end) of the second horizontal extensions (476A-4) and may be fixed to a pillar (463-4) of the middle carrier (461-4) connected to one of the plurality of first sheet springs (470-4) (e.g., the first sheet spring (470-4) arranged in the +X-direction), and another second vertical extension (476B-4) may be connected to a second end (e.g., -X-direction end) opposite to the first end of the second horizontal extension (476A-4) and may be connected to another first sheet spring (470-4) (e.g., the first sheet It can be fixed to the pillar (463-4) of the middle carrier (461-4) connected to the spring (470-4).
[0161] The fourth fixing member (477-4) may include a second loop that is respectively fixed to a plurality of second protrusions (451F). The second loop may at least partially surround the perimeter of the second protrusion (451F). The second loop may be at least partially open. The second loop may be configured to engage with the second protrusion (451F).
[0162] The second movable arm (478-4) extends away from one of the second horizontal extensions (476A-4), extends along the second horizontal extensions (476A-4), extends in a direction (e.g., in the Z-axis direction) between the plurality of second horizontal extensions (476A-4), has a meander shape along the plurality of second horizontal extensions (476A-4), surrounds the second protrusion (451F) at least once, and can be connected to the fourth fixed portion (477-4).
[0163] A plurality of first sheet springs (470-4) and a plurality of second sheet springs (475-4) can be configured to electrically connect the AF coil (443-4) and a flexible printed circuit board (e.g., the flexible printed circuit board (480) of FIG. 6). A first end of the AF coil (443-4) can be electrically connected to one second sheet spring (475-4) of the plurality of second sheet springs (475-4) (e.g., the +Y-direction first sheet spring (470-4)), and a second end of the AF coil (443-4) opposite to the first end can be electrically connected to another second sheet spring (475-4) of the plurality of second sheet springs (475-4) (e.g., the -Y-direction second sheet spring (475-4)). The second sheet spring (475-4) connected to the first end of the AF coil (443-4) may be electrically connected to the flexible printed circuit board via one first sheet spring (e.g., +X-direction first sheet spring (470-4)) among the plurality of first sheet springs (470-4), and the second sheet spring (475-4) connected to the second end of the AF coil (443-4) may be electrically connected to the flexible printed circuit board via another first sheet spring (e.g., -X-direction first sheet spring (470-4)) among the plurality of first sheet springs (470-4).
[0164] The camera module (400-4) may include a third sheet spring (490A) (e.g., a top sheet spring). The third sheet spring (490A) may prevent the AF carrier (441-4) from moving in a direction substantially orthogonal to the optical axis (A) (e.g., the XY plane direction) and guide the AF carrier (441-4) so that the AF carrier (441-4) moves in a direction along the optical axis (A) (e.g., the Z-axis direction). The third sheet spring (490A) may be disposed on the AF carrier (441-4) and the OIS carrier (451-4). The third sheet spring (490A) may include corner regions fixed to corner regions of the OIS carrier (451-4), edge regions between the corner regions, and movable regions extending along each edge region from each of the corner regions. The third sheet spring (490A) may be formed of a single piece.
[0165] The camera module (400-4) may include a fourth sheet spring (490B) (e.g., a bottom sheet spring). The fourth sheet spring (490B) may prevent movement (e.g., tilt) in a direction different from the direction along the optical axis (A) of the AF carrier (441-4) (e.g., the Z-axis direction). The fourth sheet spring (490B) may be composed of a plurality of pieces (490B1, 490B2) arranged in a second direction (e.g., the Y-axis direction). The first piece (490B1) may be arranged on a first side (e.g., the +Y-direction side), and the second piece (490B2) may be arranged on a second side opposite to the first side (e.g., the -Y-direction side). The first piece (490B1) and the second piece (490B2) may each include corner regions fixed to corner regions of the OIS carrier (451-4), edge regions between the corner regions, and movable regions extending along each edge region from each of the corner regions. The fourth sheet spring (490B) may be arranged under the AF carrier (441-4) and the OIS carrier (451-4).
[0166] The first piece (490B1) of the fourth sheet spring (490B) may be electrically connected to one of the second sheet springs (475-4) among the plurality of second sheet springs (475-4) (e.g., the +Y direction second sheet spring (475-4)), and the second piece (490B2) of the fourth sheet spring (490B) may be electrically connected to another of the second sheet springs (475-4) among the plurality of second sheet springs (475-4) (e.g., the -Y direction second sheet spring (475-4)).
[0167] In one embodiment, the AF coil (443-4) and the flexible printed circuit board (e.g., the flexible printed circuit board (480) of FIG. 6) may be electrically connected to each other via a fourth sheet spring (490B). A first end of the AF coil (443-4) may be physically and electrically connected to a first piece (490B1) of the fourth sheet spring (490B), and a second end of the AF coil (443-4), opposite to the first end, may be physically and electrically connected to a second piece (490B2) of the fourth sheet spring (490B). The first piece (490B1) connected to the first end of the AF coil (443-4) may be electrically connected to one of the second sheet springs (475-4) among the plurality of second sheet springs (475-4) (e.g., the +Y direction second sheet spring (475-4)), and the second piece (490B2) connected to the second end of the AF coil (443-4) may be electrically connected to another of the second sheet springs (475-4) among the plurality of second sheet springs (475-4) (e.g., the -Y direction second sheet spring (475-4)).
[0168] The electrical connection between the fourth sheet spring (490B) and the plurality of second sheet springs (475-4), the electrical connections between the plurality of first sheet springs (470-4) and the plurality of second sheet springs (475-4), and the connection between the plurality of first sheet springs (470-4) and the flexible printed circuit board can be implemented in various ways. For example, the electrical connection between the sheet springs and / or the electrical connection between the sheet springs and the flexible printed circuit board can be implemented by soldering.
[0169] In an embodiment not shown, the camera module (400-4) may not include an AF actuator (440-4).
[0170] One aspect of the disclosure may provide a camera module with reduced crosstalk. One aspect of the disclosure may provide a camera module with a reduced size. One aspect of the disclosure may provide a camera module that operates with reduced power consumption. The technical problems to be solved by the present disclosure are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art to which the present disclosure pertains.
[0171] A camera module (400) may include a lens (411) having an optical axis (A). The camera module (400) may include a first carrier (441) configured to transport the lens (411) in a direction along the optical axis (A). The camera module (400) may include a second carrier (451) configured to transport the lens (411) in a first direction substantially orthogonal to the optical axis (A). The camera module (400) may include a third carrier (461) configured to move in a second direction substantially orthogonal to the optical axis (A) and the first direction. The camera module (400) may include a plurality of first sheet springs (470) arranged opposite to each other in the first direction with respect to the lens (411). The plurality of first sheet springs (470) may each include a first fixing part (471) fixed to the first carrier (441). The plurality of first sheet springs (470) may each include a second fixing part (472) fixed to the third carrier (461). The plurality of first sheet springs (470) may each include a first movable arm (473) connecting the first fixing part (471) and the second fixing part (472). The camera module (400) may include a plurality of second sheet springs (475) arranged opposite to each other in the second direction with respect to the lens (411). The plurality of second sheet springs (475) may each include a third fixing part (476) fixed to the third carrier (461). The plurality of second sheet springs (475) may each include a fourth fixing part (477) fixed to the second carrier (451). The plurality of second sheet springs (475) may each include a second movable arm (478) connecting the third fixing part (476) and the fourth fixing part (477).
[0172] The plurality of first sheet springs (470) may be arranged symmetrically with respect to the third carrier (461). The plurality of second sheet springs (475) may be arranged symmetrically with respect to the second carrier (451).
[0173] The second carrier (451) and the third carrier (461) can be placed inside the first carrier (441).
[0174] The width of the first movable arm (473) may be substantially equal to or greater than the thickness of the first movable arm (473). The width of the second movable arm (478) may be substantially equal to or greater than the thickness of the second movable arm (478).
[0175] The camera module (400) may include a first magnet (452A) and a first coil (453A) arranged in the first direction. The camera module (400) may include a second magnet (452B) and a second coil (453B) arranged in the second direction. At least one first sheet spring among the plurality of first sheet springs (470) may be arranged between the first magnet (452A) and the first coil (453A). At least one second sheet spring among the plurality of second sheet springs (475) may be arranged between the second magnet (452B) and the second coil (453B).
[0176] The plurality of first sheet springs (470) may each include an additional first fixing portion (471) fixed to the first carrier (441). The plurality of first sheet springs (470) may each include an additional second fixing portion (472) fixed to the third carrier (461). The plurality of first sheet springs (470) may each include an additional first movable arm (473) connecting the additional first fixing portion (471) and the additional second fixing portion (472). The plurality of second sheet springs (475) may each include an additional third fixing portion (476) fixed to the third carrier (461). The plurality of second sheet springs (475) may each include an additional fourth fixing portion (477) fixed to the second carrier (451). The plurality of second sheet springs (475) may each include an additional second movable arm (478) connecting the additional third fixing member (476) and the additional fourth fixing member (477).
[0177] The second fixing part (472) and the additional second fixing part (472) may be positioned between the first fixing part (471) and the additional first fixing part (471). The fourth fixing part (477) and the additional fourth fixing part (477) may be positioned between the third fixing part (476) and the additional third fixing part (476).
[0178] The camera module (400-1) may include a first magnet (452A-1) arranged on the third carrier (461). The camera module (400-1) may include a second magnet (452B-1) arranged on the second carrier (451).
[0179] The camera module (400-2) may include a first magnet (452A-2) having a single polarization in the first direction. The camera module (400-2) may include a second magnet (452B-2) having a single polarization in the second direction.
[0180] The camera module (400-3) may include a first magnet (452A-3) having a plurality of polarizations in the second direction. The camera module (400-3) may include a second magnet (452B-3) having a plurality of polarizations in the first direction.
[0181] A camera module (400-4) may include a lens (411) having an optical axis (A). The camera module (400-4) may include a first carrier (441-4) configured to transport the lens (411) in a direction along the optical axis (A). The camera module (400-4) may include a second carrier (451-4) configured to transport the lens (411) in a direction substantially orthogonal to the optical axis (A). The camera module (400-4) may include a camera housing (420-4) configured to accommodate the first carrier (441-4) and the second carrier (451-4). The camera module (400-4) may include a plurality of first sheet springs (470-4) arranged opposite to each other in a first direction substantially orthogonal to the optical axis (A) with respect to the lens (411). The plurality of first sheet springs (470-4) may each include a first fixing part (471-4) fixed to the camera housing (420-4). The plurality of first sheet springs (470-4) may each include a second fixing part (472-4). The plurality of first sheet springs (470-4) may each include a first movable arm (473-4) connecting the first fixing part (471-4) and the second fixing part (472-4). The camera module (400-4) may include a plurality of second sheet springs (475-4) arranged opposite to each other in a second direction substantially orthogonal to the optical axis (A) and the first direction with respect to the lens (411). The plurality of second sheet springs (475-4) may each include a third fixing part (476-4) fixed to the second fixing part (472-4). The plurality of second sheet springs (475-4) may each include a fourth fixing part (477-4) fixed to the second carrier (451-4).The plurality of second sheet springs (475-4) may each include a second movable arm (478-4) connecting the third fixed part (476-4) and the fourth fixed part (477-4).
[0182] The plurality of first sheet springs (470-4) may be arranged symmetrically with respect to the second carrier (451-4). The plurality of second sheet springs (475-4) may be arranged symmetrically with respect to the second carrier (451-4).
[0183] The second carrier (451-4) may be placed outside the first carrier (441-4).
[0184] The width of the first movable arm (473-4) may be substantially equal to or greater than the thickness of the first movable arm (473-4). The width of the second movable arm (478-4) may be substantially equal to or greater than the thickness of the second movable arm (478-4).
[0185] The camera module (400-4) may include a first magnet (452A) and a first coil (453A) arranged in the first direction. The camera module (400-4) may include a second magnet (452B) and a second coil (453B) arranged in the second direction. The camera module (400-4) may include a third magnet (452C) and a third coil (453C) arranged in the first direction. The camera module (400-4) may include a fourth magnet (452D) and a fourth coil (453D) arranged in the second direction. One first sheet spring (470-4) among the plurality of first sheet springs (470-4) may be disposed between the first magnet (452A) and the first coil (453A). Another first sheet spring (470-4) may be disposed between the third magnet (452C) and the third coil (453C). One second sheet spring (475-4) among the plurality of second sheet springs (475-4) may be disposed between the second magnet (452B) and the second coil (453B). Another second sheet spring (475-4) may be disposed between the fourth magnet (452D) and the fourth coil (453D).
[0186] The above camera module (400-4) may include a coil (443-4) wound around the perimeter of the first carrier (441-4) about the optical axis (A).
[0187] The plurality of first sheet springs (470-4) may be electrically connected to the plurality of second sheet springs (475-4), respectively. The plurality of second sheet springs (475-4) may be electrically connected to the coil (443-4).
[0188] The camera module (400-4) may include a third sheet spring (490A) disposed on the first carrier (441-4) and the second carrier (451-4). The camera module (400-4) may include a fourth sheet spring (490B) disposed under the first carrier (441-4) and the second carrier (451-4). The plurality of second sheet springs (475-4) may be electrically connected to the coil (443-4) through the fourth sheet spring (490B).
[0189] The above fourth sheet spring (490B) may include a plurality of pieces (490B1, 490B2).
[0190] The electronic device (101; 301) may include the camera module (400; 400-1; 400-2; 400-3; 400-4).
[0191] According to one embodiment, crosstalk may be reduced. According to one embodiment, the size of the camera module may be reduced. According to one embodiment, the control of the camera module may be facilitated. According to one embodiment, the power consumption required when centering the lens may be reduced. The effects of the camera module according to the embodiments are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the specification.
[0192] The embodiments described herein are intended to be illustrative and not restrictive. Various modifications to the details of the disclosure, including those included within the scope of the appended claims and their equivalents, may be made. Any of the embodiments described herein may be used in combination with any of the embodiments described herein.
Claims
1. A lens (411) including an optical axis (A), A first carrier (441) configured to transport the lens (411) in a direction along the optical axis (A); A second carrier (451) configured to transport the lens (411) in a first direction substantially orthogonal to the optical axis (A); A third carrier (461) configured to move in a second direction substantially orthogonal to the optical axis (A) and the first direction; A plurality of first sheet springs (470) arranged opposite to each other in the first direction with respect to the lens (411), wherein the plurality of first sheet springs (470) are A first fixing part (471) fixed to the first carrier (441), A second fixed part (472) fixed to the third carrier (461), and The plurality of first sheet springs (470), each including a first movable arm (473) connecting the first fixed part (471) and the second fixed part (472), and A plurality of second sheet springs (475) arranged opposite to each other in the second direction with respect to the lens (411), wherein the plurality of second sheet springs (475) are A third fixing member (476) fixed to the third carrier (461), A fourth fixed part (477) fixed to the second carrier (451), and The plurality of second sheet springs (475), each including a second movable arm (478) connecting the third fixed part (476) and the fourth fixed part (477), A camera module (400) including:
2. In paragraph 1, The above plurality of first sheet springs (470) are arranged symmetrically with respect to the third carrier (461), A camera module in which the plurality of second sheet springs (475) are arranged symmetrically with respect to the second carrier (451).
3. In paragraph 1 or 2, The second carrier (451) and the third carrier (461) are camera modules arranged inside the first carrier (441).
4. In any one of paragraphs 1 to 3, The width of the first movable arm (473) is substantially equal to or greater than the thickness of the first movable arm (473), A camera module in which the width of the second movable arm (478) is substantially equal to or greater than the thickness of the second movable arm (478).
5. In any one of paragraphs 1 to 4, The first magnet (452A) and the first coil (453A) arranged in the first direction, and It further includes a second magnet (452B) and a second coil (453B) arranged in the second direction, At least one first sheet spring among the plurality of first sheet springs (470) is disposed between the first magnet (452A) and the first coil (453A), A camera module wherein at least one of the plurality of second sheet springs (475) is disposed between the second magnet (452B) and the second coil (453B).
6. In any one of paragraphs 1 to 5, The above plurality of first sheet springs (470) are, An additional first fixing member (471) fixed to the first carrier (441), An additional second fixing member (472) fixed to the third carrier (461), and Each further includes an additional first movable arm (473) connecting the additional first fixed part (471) and the additional second fixed part (472), The above plurality of second sheet springs (475) are, An additional third fixing member (476) fixed to the third carrier (461), An additional fourth fixing member (477) fixed to the second carrier (451), and Each of which includes an additional second movable arm (478) connecting the additional third fixing member (476) and the additional fourth fixing member (477), Preferably, the second fixing part (472) and the additional second fixing part (472) are arranged between the first fixing part (471) and the additional first fixing part (471), A camera module in which the fourth fixing part (477) and the additional fourth fixing part (477) are positioned between the third fixing part (476) and the additional third fixing part (476).
7. In any one of paragraphs 1 to 6, The first magnet (452A-1) placed on the third carrier (461), and A camera module further comprising a second magnet (452B-1) arranged on the second carrier (451).
8. In any one of paragraphs 1 to 7, A first magnet (452A-2) having a single polarization in the first direction, and or further comprising a second magnet (452B-2) having a single polarization in the second direction; A first magnet (452A-3) having a plurality of polarizations in the second direction, and A camera module further comprising a second magnet (452B-3) having a plurality of polarizations in the first direction.
9. A lens (411) including an optical axis (A), A first carrier (441-4) configured to transport the lens (411) in a direction along the optical axis (A); A second carrier (451-4) configured to transport the lens (411) in a direction substantially orthogonal to the optical axis (A); A third carrier (461-4) configured to move in a direction substantially orthogonal to the optical axis (A); A camera housing (420-4) configured to accommodate the first carrier (441-4), the second carrier (451-4) and the third carrier (461-4), A plurality of first sheet springs (470-4) arranged opposite to each other in a first direction substantially orthogonal to the optical axis (A) based on the lens (411), wherein the plurality of first sheet springs (470-4) are A first fixing part (471-4) fixed to the above camera housing (420-4), Second fixed part (472-4), and The plurality of first sheet springs (470-4), each including a first movable arm (473-4) connecting the first fixed part (471-4) and the second fixed part (472-4), and A plurality of second sheet springs (475-4) arranged opposite to each other in a second direction substantially orthogonal to the optical axis (A) and the first direction based on the lens (411), wherein the plurality of second sheet springs (475-4) are A third fixing part (476-4) fixed to the second fixing part (472-4), A fourth fixed part (477-4) fixed to the second carrier (451-4), and The plurality of second sheet springs (475-4), each including a second movable arm (478-4) connecting the third fixed part (476-4) and the fourth fixed part (477-4), Camera module including.
10. In paragraph 9, The above plurality of first sheet springs (470-4) are arranged symmetrically with respect to the second carrier (451-4), A camera module in which the plurality of second sheet springs (475-4) are arranged symmetrically with respect to the second carrier (451-4).
11. In paragraph 9 or 10, The above second carrier (451-4) is a camera module placed outside the above first carrier (441-4).
12. In any one of paragraphs 9 to 11, The width of the first movable arm (473-4) is substantially equal to or greater than the thickness of the first movable arm (473-4), A camera module in which the width of the second movable arm (478-4) is substantially equal to or greater than the thickness of the second movable arm (478-4).
13. In any one of paragraphs 9 to 12, The first magnet (452A) and the first coil (453A) arranged in the first direction, A second magnet (452B) and a second coil (453B) arranged in the second direction, A third magnet (452C) and a third coil (453C) arranged in the first direction, and Further comprising a fourth magnet (452D) and a fourth coil (453D) arranged in the second direction, One of the plurality of first sheet springs (470-4) is disposed between the first magnet (452A) and the first coil (453A), and another first sheet spring (470-4) is disposed between the third magnet (452C) and the third coil (453C). A camera module in which one of the plurality of second sheet springs (475-4) is disposed between the second magnet (452B) and the second coil (453B), and the other second sheet spring (475-4) is disposed between the fourth magnet (452D) and the fourth coil (453D).
14. In any one of paragraphs 9 to 13, Further comprising a coil (443-4) wound around the circumference of the first carrier (441-4) about the optical axis (A), Preferably, the plurality of first sheet springs (470-4) are electrically connected to the plurality of second sheet springs (475-4), respectively, The above plurality of second sheet springs (475-4) are electrically connected to the coil (443-4), Preferably, a third sheet spring (490A) arranged on the first carrier (441-4) and the second carrier (451-4), and Further comprising a fourth sheet spring (490B) arranged under the first carrier (441-4) and the second carrier (451-4), The above plurality of second sheet springs (475-4) are electrically connected to the coil (443-4) through the fourth sheet spring (490B), Preferably, the fourth sheet spring (490B) is a camera module including a plurality of pieces (490B1, 490B2).
15. An electronic device (101; 301) comprising a camera module (400; 400-1; 400-2; 400-3; 400-4) according to any one of claims 1 to 14.
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