Camera module and electronic device comprising camera module
The camera module optimizes rotational axes to reduce component gaps and image rotation, addressing size and stabilization challenges through a reflective actuator design using OIS coils and magnets.
Patent Information
- Application Number
- PCT/KR2025/000929
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-02-29
- Filing Date
- 2025-01-16
- Publication Date
- 2025-07-24
AI Technical Summary
Existing camera modules face limitations in reducing the gap between components due to the need for rotation about the roll axis, leading to increased size and potential image rotation phenomena during image stabilization.
The camera module design includes a reflective actuator that rotates about the yaw and pitch axes using OIS coils and magnets, reducing the gap between components and minimizing image rotation by optimizing the rotational axes.
This design reduces the size of the camera module and minimizes image rotation during stabilization, enhancing image quality by effectively compensating for shaking.
Smart Images

Figure KR2025000929_24072025_PF_FP_ABST
Abstract
Description
Camera module and electronic device including camera module
[0001] Various embodiments disclosed in this document relate to a camera module and an electronic device including a camera module.
[0002] Various electronic devices, such as smart phones, tablet PCs, portable multimedia players (PMPs), personal digital assistants (PDAs), laptop personal computers, and wearable devices such as wrist watches and head-mounted displays (HMDs), contain cameras and can capture images using cameras.
[0003] As the number of users using electronic devices to take photos and videos increases, the performance of cameras embedded in these devices is also improving. For example, when taking images using a camera embedded in an electronic device, adjusting the focus of the subject or compensating for any camera shake (e.g., hand shake) that may occur during the capture may be necessary to obtain a clear image.
[0004] A camera module used in an electronic device may include an auto focus (AF) function that automatically adjusts the focus of a lens on a subject and / or an optical image stabilizer (OIS) function that compensates for shaking that occurs in the camera module when photographing a subject. The AF function and the optical image stabilizer function of the camera module may be driven based on an electromagnetic force using a magnet and a coil.
[0005] The above information may be provided as background art to aid in understanding the present disclosure. No claim or determination is made as to whether any of the above is applicable as prior art related to the present disclosure.
[0006] Camera modules can utilize light refraction to achieve high magnification. For example, the camera module may include a reflective element, such as a prism or mirror. Light incident on the reflective element can be reflected or refraction, causing its path to be bent and transmitted to the image sensor.
[0007] A camera module using a reflective member may include a base portion, a middle guide portion, a reflective actuator, a lens driving portion, and an image sensor inside a camera housing.
[0008] A reflective actuator may include a reflective member and a carrier. The reflective member may be tilted relative to the image sensor to compensate for shaking of an image formed on the image sensor due to hand shake. For example, the carrier on which the reflective member is disposed may be rotated relative to the image sensor about a roll axis and a pitch axis via an actuator (e.g., a coil and a magnet). The middle guide may be rotated relative to the image sensor about the other of the roll axis and the pitch axis via the actuator. The carrier may be coupled with the middle guide and rotate in the same direction as the rotation direction of the middle guide.
[0009] Meanwhile, when the reflective actuator rotates about the roll axis, a gap may be required between the reflective actuator and the middle guide for rotation of the reflective actuator about the roll axis. The camera module may have limitations in reducing the gap between the reflective actuator and the middle guide.
[0010] Additionally, when the reflective actuator rotates around the roll axis to compensate for image shake, a smile effect, which is an image rotation phenomenon, may occur.
[0011] The technical tasks to be achieved in this document are not limited to the technical tasks mentioned above, and other technical tasks not mentioned will be clearly understood by those with ordinary skill in the technical field to which this document pertains from the description below.
[0012] According to one embodiment of the present disclosure, a camera module may include a camera housing including a first portion and a second portion perpendicular to the first portion. Further, the camera module may include a reflective member including an incident surface and an exit surface perpendicular to the incident surface. Further, the camera module may include a carrier including a mounting portion on which the reflective member is disposed and a first guide groove facing the reflective member and facing the second portion. Further, the camera module may include a middle guide, at least a portion of which is disposed between the carrier and the second portion of the camera housing, and including a second guide groove corresponding to the first guide groove and a third guide groove facing the second portion. Further, the camera module may include a base portion disposed in the second portion and including a fourth guide groove corresponding to the third guide groove. Further, the camera module may include a first OIS ball positioned between the first guide groove and the second guide groove. In addition, the camera module may include a second OIS ball positioned between the third guide groove and the fourth guide groove. In addition, the camera module may include a first OIS magnetic body disposed on the carrier and facing the first portion. In addition, the camera module may include a second OIS magnetic body disposed on the middle guide and facing the second portion. In addition, the camera module may include a first OIS coil (512) disposed on the first portion and facing the first OIS magnetic body. In addition, the camera module may include a second OIS coil disposed on the second portion and facing the second OIS magnetic body.
[0013] According to one embodiment of the present disclosure, a camera module may further include a camera housing including a first portion and a second portion perpendicular to the first portion. In addition, the camera module may include a reflective member including an incident surface, an exit surface perpendicular to the incident surface, and a reflective surface connecting the incident surface and the exit surface and inclined at a predetermined angle with a support surface of the camera housing. In addition, the camera module may include a carrier including a mounting portion on which the reflective member is disposed. In addition, the camera module may include a middle guide disposed in the camera housing, at least a portion of which faces the mounting portion. In addition, the camera module may include a first OIS ball disposed between the carrier and the middle guide. In addition, the camera module may include a first OIS magnetic body disposed in the carrier and facing the first portion. In addition, the camera module may include a first OIS coil disposed in the first portion and facing the first OIS magnetic body. Additionally, the carrier can rotate about an inclined axis that is parallel to one side of the reflective surface and inclined at a predetermined angle with respect to the support surface of the camera housing through an electromagnetic force acting between the first OIS magnetic body and the first OIS coil.
[0014] According to various embodiments disclosed in the present document, a carrier having a reflective member disposed thereon can be rotated about the yaw axis and the pitch axis with respect to an image sensor via an actuator (e.g., a coil and a magnet). When the reflective actuator rotates about the yaw axis, the gap between the middle guide and the reflective actuator can be reduced compared to when the reflective actuator rotates about the roll axis. Accordingly, the size of the camera module can be reduced as a result of the reduced gap between the components disposed inside the camera housing.
[0015] Additionally, when the reflective actuator rotates around the yaw axis, the image rotation phenomenon that occurs when correcting image shake can be reduced compared to when the reflective actuator rotates around the roll axis.
[0016] The effects that can be obtained from the present disclosure are not limited to the effects mentioned above, and other effects that are not mentioned can be clearly understood by a person having ordinary skill in the art to which the present disclosure belongs from the description below.
[0017] In connection with the description of the drawings, the same or similar reference numerals may be used for the same or similar components.
[0018] FIG. 1 is a block diagram of an electronic device within a network environment according to various embodiments of the present disclosure.
[0019] FIG. 2 is a block diagram illustrating a camera module according to various embodiments.
[0020] FIG. 3A is an exploded perspective view of a camera module according to one embodiment of the present disclosure.
[0021] Fig. 3b is a drawing explaining the coupling relationship of the base part - middle guide - carrier of Fig. 3a.
[0022] FIG. 3c is a drawing illustrating the arrangement relationship between the first OIS magnetic body and the first OIS coil according to one embodiment of the present disclosure.
[0023] Figure 4 is a cross-sectional view taken along line AA of Figure 3b.
[0024] FIG. 5A is a drawing illustrating a coupling relationship between a first guide groove of a carrier and a second guide groove of a middle guide according to one embodiment of the present disclosure.
[0025] FIG. 5b is a drawing illustrating a first guide groove formed in a carrier according to one embodiment of the present disclosure.
[0026] FIG. 5c is a description of a protrusion located in one of the first guide groove of the carrier and the second guide groove of the middle guide, according to one embodiment of the present disclosure.
[0027] FIG. 6A is an exploded perspective view of a camera module according to one embodiment of the present disclosure.
[0028] Fig. 6b is a drawing explaining the coupling relationship of the base part - middle guide - carrier of Fig. 6a.
[0029] Figure 7a is a cross-sectional view taken along line B1-B1 of Figure 6b.
[0030] Figure 7b is a cross-sectional view taken along line B2-B2 of Figure 6b.
[0031] FIG. 8A is an exploded perspective view of a camera module according to one embodiment of the present disclosure.
[0032] Fig. 8b is a drawing explaining the coupling relationship of the base part - middle guide - carrier of Fig. 8a.
[0033] Figure 9a is a cross-sectional view taken along the line C1-C1 of Figure 8b.
[0034] Figure 9b is a cross-sectional view taken along the line C2-C2 of Figure 8b.
[0035] Figure 10a is a perspective view of the carrier illustrated in Figure 8a.
[0036] Figure 10b is a perspective view of the middle guide illustrated in Figure 8a.
[0037] FIG. 11A is an exploded perspective view of a camera module according to one embodiment of the present disclosure.
[0038] Fig. 11b is a drawing explaining the coupling relationship of the base part - middle guide - carrier of Fig. 11a.
[0039] Figure 12a is a cross-sectional view taken along line D1-D1 of Figure 11b.
[0040] Figure 12b is a cross-sectional view taken along line D2-D2 of Figure 11b.
[0041] In the following description, various embodiments of this document are described with reference to the attached drawings. It should be understood that the various embodiments of this document and the terminology used herein are not intended to limit the technical features described herein to specific embodiments, but rather encompass various modifications, equivalents, or alternatives of the embodiments.
[0042] In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of the noun corresponding to an item may include one or more of said items, unless the context clearly indicates otherwise.
[0043] In this document, 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 each include any one of the items listed together in that phrase, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish the corresponding component from other corresponding components and do not limit the corresponding components in any other respect (e.g., importance or order). When a component (e.g., a first) 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.
[0044] FIG. 1 is a block diagram of an electronic device (101) within a network environment (100), according to one embodiment. Referring to FIG. 1, in the network environment (100), the electronic device (101) may communicate with the electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with the electronic device (104) or a server (108) via a second network (199) (e.g., a long-range wireless communication network). In 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 some embodiments, the electronic device (101) may omit at least one of these components (e.g., the connection terminal (178)), or may have one or more other components added. In some embodiments, 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)).
[0045] The processor (120) may, for example, execute software (e.g., a program (140)) to control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) and perform various data processing or operations. According to one embodiment, as at least a part of the data processing or operations, the processor (120) may store commands or data received from other components (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the commands or data stored in the volatile memory (132), and store result data in a non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or an auxiliary processor (123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together with the main processor (121). For example, when the electronic device (101) includes the main processor (121) and the auxiliary processor (123), the auxiliary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a given function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as a part thereof.
[0046] The auxiliary processor (123) may control at least a portion of functions or states associated with at least one component (e.g., a display module (160), a sensor module (176), or a communication module (190)) of the electronic device (101), for example, on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (123) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (180) or a communication module (190)). In one embodiment, the auxiliary processor (123) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, in the electronic device (101) itself where artificial intelligence is performed, 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.
[0047] The memory (130) can store various data used by at least one component (e.g., processor (120) or sensor module (176)) of the electronic device (101). The data can include, for example, software (e.g., program (140)) and input data or output data for commands related thereto. The memory (130) can include volatile memory (132) or non-volatile memory (134).
[0048] 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).
[0049] 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).
[0050] The audio output module (155) can output audio signals to the outside of the electronic device (101). The audio output module (155) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. In one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.
[0051] 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.
[0052] 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).
[0053] 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.
[0054] 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.
[0055] The connection terminal (178) may include a connector through which the electronic device (101) may be physically connected to an external electronic device (e.g., electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).
[0056] The 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.
[0057] The camera module (180) can capture still images and moving images. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.
[0058] 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).
[0059] 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.
[0060] 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).
[0061] 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) can support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for URLLC realization.
[0062] The antenna module (197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one embodiment, the antenna module (197) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). In one embodiment, the antenna module (197) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as the first network (198) or the second network (199), may be selected from the plurality of antennas, 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 at least one selected antenna. In some embodiments, 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).
[0063] 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.
[0064] 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)).
[0065] 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.
[0066] FIG. 2 is a block diagram illustrating a camera module (180) according to various embodiments. Referring to FIG. 2, the camera module (180) may include a lens assembly (210), a flash (220), an image sensor (230), an image stabilizer (240), a memory (250) (e.g., a buffer memory), or an image signal processor (260). The lens assembly (210) may collect light emitted from a subject that is 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.
[0067] 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 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.
[0068] 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 at least a portion of the image shake caused by the movement to be captured to be compensated for. According to one embodiment, the image stabilizer (240) can detect such movement of the camera module (180) or the electronic device (101) using a gyro sensor (not shown) or an acceleration sensor (not shown) disposed inside or outside the camera module (180). The memory (250) can at least 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 a 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) may be configured as at least a portion of the memory (130), or as a separate memory that operates independently therefrom.
[0069] 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 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.) for 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).
[0070] According to one embodiment, the electronic device (101) may include a plurality of camera modules (180), each having different properties (e.g., angle of view) or functions. In this case, for example, the plurality of camera modules (180) may include at least one of a wide-angle camera, a telephoto camera, or an IR Camera (time of flight camera, structured light camera). For example, a plurality of camera modules including lenses having different angles of view are configured, and the electronic device may be controlled to change the angle of view variably according to a user's selection. According to one embodiment, at least one of the plurality of camera modules (180) may be a front camera, and at least another may be a rear camera.
[0071] FIG. 3A is an exploded perspective view of a camera module according to an embodiment of the present disclosure. FIG. 3B is a drawing illustrating a coupling relationship among a base portion, a middle guide, and a carrier of FIG. 3A. FIG. 3C is a drawing illustrating a placement relationship between a first OIS magnetic body and a first OIS coil according to an embodiment of the present disclosure. FIG. 4 is a cross-sectional view taken along line AA of FIG. 3B. FIG. 5A is a drawing illustrating a coupling relationship between a first guide groove of a carrier and a second guide groove of a middle guide according to an embodiment of the present disclosure. FIG. 5B is a drawing illustrating a first guide groove formed in a carrier according to an embodiment of the present disclosure. FIG. 5C is a drawing illustrating a protrusion located in one of the first-1 guide groove of the carrier and the second-1 guide groove of the middle guide according to an embodiment of the present disclosure.
[0072] According to one embodiment, as shown in FIGS. 3A and 3B, the camera module (300) includes a camera housing (320), a reflective actuator (e.g., a reflective member (R), a carrier (330)), a middle guide (340), a base (350), a lens driving unit (310), a flexible printed circuit board (560), a first OIS actuator (e.g., a first OIS magnetic body (511) of FIG. 3A, a first OIS coil (512)), a second OIS actuator (e.g., a second OIS magnetic body (521) of FIG. 3A, a second OIS coil (522)), a third OIS actuator (e.g., a third OIS magnetic body (531) of FIG. 3A, a third OIS coil (532)), a first AF actuator (e.g., a first AF magnetic body (541) of FIG. 3A, a first AF The second AF actuator (e.g., the second AF magnetic body (551) of FIG. 3A, the second AF coil (552) of FIG. 6A), the first OIS ball (b1), the second OIS ball (b2) and / or the AF ball (b3) may be included. At least one of the above-described configurations may be omitted or at least one configuration may be added. In one embodiment, at least one of the first OIS actuator (511, 512) and the third OIS actuator (531, 532) may be omitted.
[0073] In one embodiment, referring to FIGS. 3A and 3B, a reflective actuator, a middle guide (340), a base portion (350), a lens driver portion (310), and an image sensor (e.g., the image sensor (230) of FIG. 2) may be arranged in a camera housing (320). In one embodiment, the camera housing (320) may be arranged in the following order: base portion (350) - middle guide (340) - reflective actuator - lens driver portion (310) - image sensor (230).
[0074] According to one embodiment, as illustrated in FIGS. 3A and 3B, a camera module (300) (e.g., camera module (180) of FIG. 1) may enable high magnification by utilizing the refraction of light. In one embodiment, light incident on the camera module (300) may be refracted or reflected by a reflective actuator to change the path of the light, and then may pass through a lens driving unit (310) and enter the image sensor (230).
[0075] According to one embodiment, as illustrated in FIGS. 3A and 3B, the reflective actuator may include a reflective member (R) and a carrier (330) on which the reflective member (R) is mounted. In one embodiment, the reflective member (R) may include a configuration that refracts or reflects a path of light, such as a prism or a mirror. In one embodiment, the reflective member (R) is disposed on a mounting portion of the carrier (330) (e.g., mounting portion (331) of FIG. 4) and may rotate with respect to the image sensor (230) and the camera housing (320) based on the operation of an OIS actuator (e.g., a first OIS actuator (511, 512), a second OIS actuator (521, 522), a third OIS actuator (531, 532)) together with the carrier (330).
[0076] In one embodiment, referring to FIG. 4, the reflective member (R) may include an incident surface (S1) on which light is incident, a reflective surface (S3) on which light is reflected or refracted, and an exit surface (S2) on which the incident light is emitted. In one embodiment, the incident surface (S1) and the exit surface (S2) may be substantially perpendicular to each other. In one embodiment, the reflective surface (S3) may be a surface that connects the incident surface (S1) and the exit surface (S2) and at least a portion of which faces the mounting portion (331) of the carrier (330). In one embodiment, light incident on the incident surface (S1) of the reflective member (R) may be reflected by the reflective surface (S3), pass through the exit surface (S2), and enter the image sensor (230) through the lens (3101) of the lens driving unit (310).
[0077] In one embodiment, the reflective actuator may be positioned in the camera housing (320) to be rotatable relative to the image sensor (230). In one embodiment, the carrier (330) may rotate about a first axis (R1) (e.g., the X axis, the yaw axis of FIG. 3B ) and a second axis (R2) (e.g., the Y axis, the pitch axis of FIG. 3B ) relative to the camera housing (320) via the first OIS actuator (511, 512), the second OIS actuator (521, 522), and / or the third OIS actuator (531, 532) to function as an optical image stabilizer (OIS) to compensate for shake occurring in the camera module (300). For example, referring to FIG. 3B, the carrier (330) can rotate about a first axis (R1) (e.g., X-axis, yaw axis of FIG. 3B) relative to the camera housing (320) via the first OIS actuator (511, 512) and / or the third OIS actuator (531, 532). The carrier (330) can rotate about a second axis (R2) (e.g., Y-axis, pitch axis of FIG. 3B) via the second OIS actuator (521, 522).
[0078] According to one embodiment, as illustrated in FIG. 4, the carrier (330) may include a mounting portion (331) on which a reflective member (R) is disposed. In one embodiment, the mounting portion (331) may include a groove having a shape corresponding to that of the carrier (330). In one embodiment, the mounting portion (331) may include an inclined surface (3311) facing the reflective surface (S3) of the carrier (330). In one embodiment, the inclined surface (3311) may be substantially parallel to the reflective surface (S3). In one embodiment, the reflective surface (S3) of the reflective member (R) may be a surface inclined at a predetermined angle with respect to the support surface (325) of the camera housing (320). The inclined surface (3311) may form a predetermined angle with the support surface (325) of the camera housing (320) by being substantially parallel to the reflective surface (S3).
[0079] In one embodiment, referring to FIGS. 3A, 3B, and 5A, the middle guide (340) can be positioned at least partially between the carrier (330) and a portion of the camera housing (320) (e.g., the second portion (322)). The middle guide (340) can guide the rotation of the carrier (330) about a first axis (R1) (e.g., the X-axis, the yaw axis of FIG. 3B) that is perpendicular to the exit surface (S2) of the reflective member (R).
[0080] In one embodiment, referring to FIG. 4, the first guide groove (410) formed in the carrier (330) and the second guide groove (420) formed in the middle guide (340) may face each other. In one embodiment, the first guide groove (410) and the second guide groove (420) may be formed in a shape such that the carrier (330) can rotate about the first axis (R1) with respect to the middle guide (340). For example, referring to FIGS. 5A and 5B described below, the first guide groove (410) and the second guide groove (420) may be a part of an imaginary circle (e.g., a circle on the YZ plane of FIG. 5A) that is perpendicular to the first axis (R1) that is perpendicular to the exit surface (S2). In one embodiment, the first guide groove (410) and the second guide groove (420) may have substantially the same curvature.
[0081] In one embodiment, a first OIS ball (b1), which is a bearing ball that guides the rotation of the carrier (330) with respect to the middle guide (340), may be disposed inside the first guide groove (410) and the second guide groove (420). The carrier (330) may rotate about the first axis (R1) with respect to the middle guide (340) via the first OIS ball (b1). In one embodiment, the first OIS ball (b1) may move along the first guide groove (410) and the second guide groove (420) based on the rotation of the carrier (330) with respect to the middle guide (340).
[0082] In one embodiment, referring to FIGS. 3A, 3B, and 4, the base portion (350) may be a relative fixture for the middle guide (340). In one embodiment, the base portion (350) may be positioned on a portion of the camera housing (320) (e.g., the second portion (322)) so as to face the middle guide (340). In one embodiment, the base portion (350) may guide the middle guide (340) to rotate about a second axis (R2) (e.g., the Y axis, the pitch axis of FIG. 3A) that is substantially perpendicular to the first axis (R1) and substantially parallel to one side of the support surface (325) of the camera housing (320). In one embodiment, the second axis (R2) may be perpendicular to an axis perpendicular to an incident surface (S1) of the reflective member (R) (e.g., the Z axis in FIG. 3B) and an axis perpendicular to an exit surface (S2) (e.g., the X axis, the R1 axis in FIG. 3B), respectively. The third guide groove (430) formed in the middle guide (340) and the fourth guide groove (440) formed in the base portion (350) may face each other. In one embodiment, the third guide groove (430) and the fourth guide groove (440) may be formed in a shape such that the middle guide (340) can rotate about the second axis (R2) with respect to the base portion (350). For example, referring to FIGS. 3A and 4, the third guide groove and the fourth guide groove (440) may be a part of an imaginary circle on the XZ plane of FIG. 4 that is perpendicular to the second axis (R2). In one embodiment, the third guide groove (430) and the fourth guide groove (440) may have substantially the same curvature.
[0083] In one embodiment, a second OIS ball (b2), which is a bearing ball that guides the rotation of the middle guide (340) with respect to the base portion (350), may be disposed inside the third guide groove (430) and the fourth guide groove (440). The middle guide (340) may rotate about the second axis (R2) with respect to the base portion (350) via the second OIS ball (b2). In one embodiment, the second OIS ball (b2) may move along the third guide groove (430) and the fourth guide groove (440) based on the rotation of the middle guide (340) with respect to the base portion (350).
[0084] According to one embodiment, as illustrated in FIG. 3A, the lens driving unit (310) may be positioned in the camera housing (320) such that the lens (3101) can move in the optical axis direction (e.g., the X-axis direction in FIG. 3A) with respect to the image sensor (230). In one embodiment, the image sensor (230) may be coupled to the camera housing (320) such that its position with respect to the camera housing (320) is fixed.
[0085] In one embodiment, the flexible printed circuit board (560) can be electrically connected to the first AF coil (542), the second AF coil (552), the first OIS coil (512), the second OIS coil (522), and / or the third OIS coil (532) (e.g., the third OIS coil (532) of FIG. 5B ). In one embodiment, the flexible printed circuit board (560) can wrap around the outside of the camera housing (320). In one embodiment, the flexible printed circuit board (560) can wrap around the base portion (350) disposed on the outside of a portion (e.g., the second portion (322)) of the camera housing (320).
[0086] In one embodiment, a camera cover (not shown) may be positioned on the exterior of the camera housing (320) and coupled or fitted to the camera housing (320). In one embodiment, the camera cover may be positioned on the outermost portion of the camera module (300) and may enclose the reflective actuator, the lens driving unit (310), and the flexible printed circuit board (560). In one embodiment, the camera cover may include an opening formed such that a portion of the reflective member (R) may be visually exposed to the camera module (300).
[0087] In one embodiment, the reflective actuator, the middle guide (340), the base portion (350), the lens driver (310), and / or the image sensor (230) may be disposed inside the camera housing (320). In one embodiment, the camera housing (320) may have an open upper surface (e.g., in the +Z direction with reference to FIG. 3A) so that the reflective actuator, the middle guide (340), the base portion (350), the lens driver (310), and / or the image sensor (230) may be inserted therein. In one embodiment, the camera housing (320) may include a first portion (321), a third portion (323) substantially parallel to the first portion (321), a second portion (322) connecting the first portion (321) and the third portion (323) and being substantially perpendicular to the first portion (321) and the third portion (323), and a fourth portion (324) substantially parallel to the second portion (322). In one embodiment, a first OIS coil (512) of a first OIS actuator (511, 512) and a first AF coil (542) of a first AF actuator (541, 542) may be disposed in the first portion (321). In one embodiment, a second OIS coil (522) of a second OIS actuator (521, 522) may be disposed in the second portion (322). In one embodiment, the third portion (323) may be arranged with a second AF coil of the second AF actuator (e.g., the second AF coil (552) of FIG. 6A) and / or a third OIS coil (532) of the third OIS actuator (531, 532). In one embodiment, the fourth portion (324) may be arranged with a part of the image sensor (230) of the camera module (300).
[0088] According to one embodiment, as illustrated in FIG. 3A, the lens driving unit (310) may include at least one lens (3101), a first AF magnetic body (541) (e.g., a magnet), and a second AF magnetic body (551) (e.g., a magnet). In one embodiment, the lens (3101) may be configured to transmit light emitted from an exit surface (S2) of the reflective member (R) through an incident surface (S1) of the reflective member (R) to the image sensor (230). In one embodiment, the first AF magnetic body (541) may face a first AF coil (542) disposed in a first portion (321) of the camera housing (320). In one embodiment, the second AF magnetic body (551) may face a second AF coil (552) disposed in a third portion (323) of the camera housing (320).
[0089] In one embodiment, the camera module (300) may perform an AF (auto focus) function to automatically adjust the focus of the lens (3101) on a subject outside the electronic device (101) by moving the lens driving unit (310) relative to the image sensor (230) under the control of the processor (120). In one embodiment, the lens driving unit (310) may move along the optical axis (OA) (e.g., the X-axis direction of FIG. 3A) of the lens relative to the image sensor (230) via at least one of the first AF actuator (541, 542) and the second AF actuator (e.g., the second AF magnetic body (551), the second AF coil).
[0090] Referring to FIG. 3A in one embodiment, the first AF actuator (541, 542) may include a first AF magnetic body (541) (e.g., a magnet) and a first AF coil (542) connected to a flexible printed circuit board (560). In one embodiment, the second AF actuator may include a second AF magnetic body (551) (e.g., a magnet) and a second AF coil (552) connected to a flexible printed circuit board (560). In addition, the first AF actuator (541, 542) and the second AF actuator may be changed into various configurations that can move the lens driving unit (310) in the optical axis direction of the lens (3101). In one embodiment, the first AF coil (542) and the second AF coil (552) may generate a magnetic force as a current is applied through the flexible printed circuit board (560). The lens driving unit (310) can automatically adjust the focus of the lens (3101) on the subject by moving relative to the image sensor (230) in the X-axis direction through the electromagnetic force acting between the first AF magnet and the first AF coil (542) and / or the electromagnetic force acting between the second AF magnet and the second AF coil (552).
[0091] According to one embodiment, as illustrated in FIG. 3A, the lens driving unit (310) can move in the X-axis direction with respect to the camera housing (320) via an AF ball (b3), which is a bearing ball. In one embodiment, the AF ball (b3) can be disposed in a ball guide formed to extend in the X-axis direction (e.g., the X-axis in FIG. 3A) from the camera housing (320). The AF ball (b3) can be arranged in the X-axis direction in the ball guide to guide the movement of the lens driving unit (310) with respect to the camera housing (320).
[0092] According to one embodiment, as illustrated in FIGS. 3A and 3B, the carrier (330) may be placed in the camera housing (320) and rotate around a first axis (R1) and a second axis (R2) to function as an optical image stabilizer (OIS) that compensates for shaking occurring in the camera module (300).
[0093] According to one embodiment, as illustrated in FIGS. 3A and 3B, the camera module (300) can control the first OIS actuator (511, 512), the second OIS actuator (521, 522), and / or the third OIS actuator (531, 532) via the processor (120) to compensate for image shake (e.g., perform an optical image stabilizer (OIS)). In one embodiment, the first OIS actuator (511, 512) is disposed on the carrier (330) and includes a first OIS magnetic body (511) (e.g., a magnet) facing the first part (321) of the camera housing (320), and a first OIS magnetic body (511) disposed on the first part (321) of the camera housing (320) such that at least a portion of the first OIS magnetic body (511) faces the first OIS magnetic body (511) and is connected to a flexible printed circuit board. A second OIS actuator (521, 522) may include a second OIS magnetic body (521) (e.g., a magnet) disposed on the middle guide (340) and facing the second portion (322) of the camera housing (320), and a second OIS coil (522) disposed on the second portion (322) of the camera housing (320) such that at least a portion thereof faces the second OIS magnetic body (521) and is connected to a flexible printed circuit board. In one embodiment, a third OIS actuator (531, 532) may include a third OIS magnetic body (531) (e.g., a magnet) disposed on the carrier (330) such that at least a portion thereof faces the third portion (323) of the camera housing (320), and a third OIS coil (522) disposed on the third portion (323) of the camera housing (320) such that at least a portion thereof faces the third OIS magnetic body (531) and is connected to a flexible printed circuit board. It may include a third OIS coil (532) connected to the substrate. In addition, the first OIS actuator (511, 512), the second OIS actuator (521, 522), and the third OIS actuator (531, 532) may be changed into various configurations that can rotate (or move) the carrier (330) relative to the image sensor (230).
[0094] According to one embodiment, the processor (120) may rotate the carrier (330) about the first axis (R1) and / or the second axis (R2) with respect to the image sensor (230) in a direction that offsets a movement (e.g., shaking and / or hand tremors) caused by the user during a photographing process of the electronic device (101) through the camera module (300). The processor (120) of the electronic device (101) may obtain movement information of the electronic device (101) detected by a sensor module (e.g., sensor module (176) of FIG. 1) of the electronic device (101), and may operate the first OIS actuator (511, 512), the second OIS actuator (521, 522), and / or the third OIS actuator (531, 532) based on the movement information. For example, based on the movement information of the electronic device (101), the carrier (330) may operate the first OIS actuator (511, 512), the second OIS actuator (521, 522), and / or the third OIS actuator (531, 532) so as to rotate the image sensor (230) of the camera module (300) by a predetermined angle about the first axis (R1) and / or the second axis (R2). Through this, the quality of the image acquired through the camera module (300) may be improved. For example, the quality of the image may be improved by suppressing shaking that occurs in the camera module (300) during the process of shooting a video of a subject and / or the process of shooting an image of a subject.
[0095] In one embodiment, referring to FIGS. 3A and 3B, the carrier (330) may include a first side facing a first portion (321) of the camera housing (320) (e.g., a side facing the -Y direction in FIG. 3A), a second side facing a second portion (322) of the camera housing (320) (e.g., a side facing the +X direction in FIG. 3A), and a third side facing a third portion (323) of the camera housing (320) (e.g., a side facing the +Y direction in FIG. 3A). In one embodiment, the first side and the third side of the carrier (330) may be substantially parallel to each other. In one embodiment, the second side of the carrier (330) may be substantially perpendicular to the first side and the third side. In one embodiment, a first OIS magnetic body (511) may be disposed on the first side of the carrier (330). A first attraction magnet (611) may be placed on the second surface of the carrier (330). A third OIS magnet (531) may be placed on the third surface of the carrier (330).
[0096] According to one embodiment, as illustrated in FIGS. 3A and 3B , the carrier (330) and the reflective member (R) can rotate (e.g., rotate in the YZ plane of FIG. 3A ) relative to the image sensor (230) about a first axis (R1) (e.g., the yaw axis and / or the X-axis of FIG. 3A ) via an electromagnetic force acting on the first OIS actuator (511, 512) (e.g., the first OIS magnet (511) and the first OIS coil (512)). For example, the first OIS coil (512) can be energized by a current applied from a flexible printed circuit board (560). The first OIS coil (512) generates a magnetic field as current flows, and the carrier (330) and the reflective member (R) can rotate around the first axis (R1) through the Lorentz force acting between the first OIS coil (512) and the first OIS magnet (511). In one embodiment, the carrier (330) and the reflective member (R) can rotate (e.g., rotation in the XZ plane of FIG. 3A) around the second axis (R2) (e.g., pitch axis and / or Y axis of FIG. 3A) with respect to the image sensor (230) through the electromagnetic force acting on the second OIS actuators (521, 522) (e.g., second OIS magnet (521) and second OIS coil (522)). For example, the second OIS coil (522) can receive a current applied from a flexible printed circuit board (560). The second OIS coil (522) forms a magnetic field as current flows, and the carrier (330) and the reflective member (R) can rotate around the second axis (R2) through the Lorentz force acting between the second OIS coil (522) and the second OIS magnet (521). In one embodiment, the carrier (330) and the reflective member (R) can rotate (e.g., rotation in the YZ plane of FIG. 4b) about the first axis (R1) (e.g., the yaw axis and / or the X axis of FIG. 3a) with respect to the image sensor (230) through the electromagnetic force acting on the third OIS actuator (e.g., the third OIS magnet (531) and the third OIS coil (532)).For example, the third OIS coil (532) can receive current from a flexible printed circuit board (560). As the current flows through the third OIS coil (532), a magnetic field is formed, and the carrier (330) and the reflective member (R) can rotate around the first axis (R1) through the Lorentz force acting between the third OIS coil (532) and the third OIS magnet (531).
[0097] In one embodiment, at least one of the first OIS actuator (511, 512) and the third OIS actuator (531, 532) may be omitted. In one embodiment, the first OIS actuator (511, 512) may be omitted. In this case, the camera module (300) may correct image shake as the carrier (330) rotates around the first axis (R1) via the third OIS actuator (531, 532) and rotates around the second axis (R2) via the second OIS actuator (521, 522). In one embodiment, the third OIS actuator (531, 532) may be omitted. In this case, the camera module (300) can correct image shake as the carrier (330) rotates around the first axis (R1) through the first OIS actuator (511, 512) and around the second axis (R2) through the second OIS actuator (521, 522). In the following description, it is assumed that the camera module (300) includes the first OIS actuator (511, 512), the second OIS actuator (521, 522), and the third OIS actuator (531, 532). However, the following description may be equally applied to a case where the camera module (300) includes a first OIS actuator (511, 512) and a second OIS actuator, or a case where the camera module (300) includes a second OIS actuator (521, 522) and a third OIS actuator (531, 532).
[0098] In one embodiment, the second OIS actuator (521, 522) can be positioned substantially perpendicular to the first OIS actuator (511, 512) and the third OIS actuator (531, 532). In one embodiment, as described above, the second portion (322) of the camera housing (320) can be positioned substantially perpendicular to the first portion (321) and the third portion (323). In this case, the second OIS magnet (521) arranged on the middle guide (340) so as to face the second part (322) of the camera housing (320) may be in a substantially vertical positional relationship with the first OIS magnet (511) arranged on the first surface of the carrier (330) so as to face the first part (321) of the camera housing (320) and / or the third OIS magnet (531) arranged on the third surface of the carrier (330) so as to face the third part (323) of the camera housing (320).
[0099] According to one embodiment, as illustrated in FIGS. 3a and 3c, the first OIS magnet (511) may be disposed on the carrier (330) such that the electromagnetic force acting between the first OIS magnet (511) and the first OIS coil (512) acts in a direction that rotates with respect to the first axis (R1). For example, the first OIS magnet (511) may include a first-first OIS magnet (511a) and a first-second OIS magnet (511b) disposed along the thickness direction of the camera module (300) (e.g., the Z-axis direction in FIG. 3c). In one embodiment, the first-second OIS magnet (511b) may be disposed below the first-first OIS magnet (511a) (e.g., in the -Z direction with respect to FIG. 3c). In one embodiment, the first-first OIS magnetic body (511a) and the first-second OIS magnetic body (511b) may have different poles facing the first OIS coil (512) located in the first part (321) of the camera housing (320). For example, the pole facing the first OIS coil (512) of the first-first OIS magnetic body (511a) may be a north pole, and the pole facing the first OIS coil (512) of the first-second OIS magnetic body (511b) may be a south pole. Conversely, the pole facing the first OIS coil (512) of the first-first OIS magnetic body (511a) may be a south pole, and the pole facing the first OIS coil (512) of the first-second OIS magnetic body (511b) may be a north pole.
[0100] In one embodiment, since the first-first OIS magnetic body (511a) and the first-second OIS magnetic body (511b) of FIGS. 3a and 3c are arranged parallel to each other in the Z-axis direction, as illustrated in FIG. 3c, an electromagnetic force (e.g., Lorentz force) may act between the first-first OIS magnetic body (511a) and the first OIS coil (512) in the F1 direction (e.g., F1 direction of FIG. 3c). An electromagnetic force (e.g., Lorentz force) may act between the first-second OIS magnetic body (511b) and the first OIS coil (512) in the F2 direction (e.g., F2 direction of FIG. 3c). In one embodiment, depending on the direction of the current flowing in the first OIS coil (512), an electromagnetic force may be applied in the F2 direction between the first-1 OIS magnetic body (511a) and the first OIS coil (512), and an electromagnetic force may be applied in the F1 direction between the first-2 OIS magnetic body (511b) and the first OIS coil (512). Accordingly, the reflective actuator (e.g., reflective member (R), carrier (330)) may rotate about the first axis (R1) (e.g., yaw axis) with respect to the carema housing (320). According to one embodiment of the present disclosure, when the reflective actuator rotates about the first axis (R1) (e.g., the yaw axis) to compensate for image shake, the gap between the middle guide (340) and the carrier (330) may be reduced compared to when the reflective actuator rotates about the Z-axis (e.g., the roll axis) of FIG. 3B to compensate for image shake. For example, when the reflective actuator rotates about the Z-axis of FIG. 3B, a gap may be required in the X-axis direction of FIG. 3B between the carrier (330) and the middle guide (340) for driving the carrier (330). Therefore, when the reflective actuator rotates about the first axis (R1) to compensate for image shake, as in the present disclosure, the gap in the X-axis direction between the carrier (330) and the middle guide (340) may be relatively reduced, thereby reducing the size of the camera module (300).Additionally, in one embodiment, when the reflective actuator rotates around the first axis (R1), the image rotation phenomenon occurring during image shake correction can be reduced compared to when the reflective actuator rotates around the Z axis of FIG. 3B.
[0101] In one embodiment, since the first-second OIS magnetic body (511b) is disposed below the first-first OIS magnetic body (511a), the height (e.g., length in the Z-axis direction based on FIG. 3C) occupied by the first OIS magnetic body (511) in the carrier (330) may be lowered compared to the case where the first-first OIS magnetic body (511a) and the first-second OIS magnetic body (511b) are disposed parallel to each other in the X-axis direction of FIG. 3C. Accordingly, the overall thickness (e.g., length in the Z-axis direction of FIG. 3C) of the camera module (300) may be reduced.
[0102] In one embodiment, since the first-second OIS magnetic body (511b) is disposed below the first-first OIS magnetic body (511a), the first-first OIS magnetic body (511a), the first-second OIS magnetic body (511b), and the first OIS coil (512) may extend in length in the X-axis direction of FIG. 3c to expand the overlapping area between the first OIS magnetic body (511) and the first OIS coil (512). When the first-first OIS magnetic body (511a) and the first-second OIS magnetic body (511b) are disposed parallel to the X-axis direction of FIG. 3c, the first-first OIS magnetic body (511a), the first-second OIS magnetic body (511b), and the first OIS coil (512) may be limited in length extension in the Z-axis direction of FIG. 3c to limit an increase in the thickness of the camera module (300). Accordingly, as shown in FIG. 3c, when the 1-2 OIS magnetic body (511b) is arranged below the 1-1 OIS magnetic body (511a), the stability of driving the 1-1 OIS actuator (511, 512) can be secured with a lower driving current compared to the case where the 1-1 OIS magnetic body (511a) and the 1-2 OIS magnetic body (511b) are arranged parallel in the X-axis direction of FIG. 3c.
[0103] According to one embodiment (not shown), the first OIS actuator (511, 512) may not be limited to the first OIS magnetic body (511) and the first OIS coil (512) disposed on the first surface of the carrier (330) (e.g., the surface facing the Y direction with reference to FIG. 3A). In one embodiment, the first OIS magnetic body (511) may be disposed on the bottom surface of the carrier (330) facing the support surface (325) of the camera housing (320) (e.g., the surface facing the Z direction with reference to FIG. 3A). The first OIS coil (512) may be disposed on the support surface (325) of the camera housing (320) to face the first OIS magnetic body (511). In this case, the first OIS coil (512) may be a coil wound multiple times (e.g., a cylindrical coil). In one embodiment, the carrier (330) can rotate about the first axis (R1) to correct image shake through a solenoid force acting between the first OIS magnet (511) disposed on the bottom surface of the carrier (330) and the first OIS coil (512) disposed on the support surface (325) of the camera housing (320).
[0104] According to one embodiment, as illustrated in FIGS. 3B and 4 , the carrier (330) may be disposed in the camera housing (320) in a 'default position' when the first OIS actuator (511, 512), the second OIS actuator (521, 522), and / or the third OIS actuator (531, 532) are not in operation. In one embodiment, the 'default position' of the carrier (330) may be its original state assembled in the camera housing (320), and may not be rotated about the first axis (R1) or the second axis (R2). In one embodiment, when the carrier (330) is in the default position, the incident surface (S1) of the reflective member (R) may be perpendicular to the Z-axis of FIG. 4 , and the exit surface (S2) may be perpendicular to the X-axis of FIG. 4 .
[0105] In one embodiment, the carrier (330) can rotate about a first axis (R1) based on the operation of the first OIS actuator (511, 512) and / or the third OIS actuator (531, 532). The carrier (330) can rotate about a second axis (R2) based on the operation of the second OIS actuator (521, 522). In one embodiment, the first axis (R1) can be an emission optical axis that is substantially parallel to the X-axis of FIG. 3A and passes through the center of the emission surface (S2) of the reflective member (R). In one embodiment, the second axis (R2) can be an axis that is substantially parallel to the Y-axis of FIG. 3A and passes through the reflective surface (S3) of the reflective member (R). In one embodiment, the intersection of the first axis (R1) and the second axis (R2) is located at the reflective surface (S3) and may be the center of rotation of the carrier (330) and the reflective member (R).
[0106] In one embodiment, the reflection center may be the intersection of an incident optical axis (e.g., the Z-axis in FIG. 3A) passing through the center of an incident surface (S1) of the reflective member (R) and an exit optical axis (e.g., the X-axis in FIG. 3A) passing through the center of an exit surface (S2) of the reflective member (R). In one embodiment, the reflection center may be located at the reflective surface (S3). In one embodiment, the reflection center and the rotation center may coincide. Therefore, according to one embodiment of the present disclosure, as the rotation center of the reflective member (R) and the reflection center of the reflective member (R) coincide, an error in compensation for image shake based on the control of the first OIS actuator (511, 512), the second OIS actuator (521, 522), and the third OIS actuator (531, 532) may be reduced.
[0107] According to one embodiment, as illustrated in FIGS. 4, 5A, and 5B, the carrier (330) may include a first guide groove (410) facing the second portion (322) of the camera housing (320). The middle guide (340) may be formed on a surface facing the carrier (330) and may include a second guide groove (420) corresponding to the first guide groove (410). The first guide groove (410) and the second guide groove (420) may be positioned in a direction perpendicular to the emission surface (S2) of the reflective member (R) (e.g., the + X direction in FIG. 3A).
[0108] In one embodiment, referring to FIGS. 4, 5A, and 5B, the first guide groove (410) and the second guide groove (420) may be formed in a shape such that the carrier (330) can rotate about the first axis (R1) with respect to the middle guide (340). For example, the first guide groove (410) and the second guide groove (420) may be part of an imaginary circle perpendicular to the first axis (R1) (e.g., a circle on the YZ plane of FIG. 5A). In one embodiment, the first guide groove (410) and the second guide groove (420) may have the same curvature.
[0109] According to one embodiment, a first OIS ball (b1) may be positioned between the first guide groove (410) and the second guide groove (420), as illustrated in FIGS. 4, 5a, and 5b. The first OIS ball (b1) may guide rotation of the carrier (330) about the first axis (R1) relative to the middle guide (340).
[0110] According to one embodiment, as illustrated in FIGS. 5A and 5B, the first guide groove (410) may include a first-first guide groove (411) and a first-second guide groove (412). In one embodiment, the first-first guide groove (411) and the first-second guide groove (412) may be arranged to face each other with respect to the Z-axis of FIG. 5A with respect to the center of the carrier (330). In one embodiment, the second guide groove (420) may include a second-first guide groove (421) corresponding to the first-first guide groove (411) and a second-second guide groove (422) corresponding to the first-second guide groove (412).
[0111] In one embodiment, referring to FIGS. 5A and 5B, the number of first OIS balls (b1) arranged between the first-first guide groove (411) and the second-first guide groove (421) (hereinafter, referred to as the first rail) and the number of second OIS balls (b2) arranged between the first-second guide groove (412) and the second-second guide groove (422) (hereinafter, referred to as the second rail) may be different from each other. In one embodiment, a plurality of first OIS balls (b1) may be arranged on the first rail. A smaller number of first OIS balls (b1) may be arranged on the second rail than the number of first OIS balls (b1) arranged on the first rail. In one embodiment, at least two first OIS balls (b1) may be arranged on the first rail. One first OIS ball (b1) may be arranged on the second rail. The number of first OIS balls (b1) described above is an example and may not be limited thereto. In one embodiment, the number of first OIS balls (b1) arranged on the first rail and the second rail may be the same.
[0112] In one embodiment, referring to FIGS. 5A and 5B , as described above, three first OIS balls (b1) may be arranged on the first rail. One first OIS ball (b1) may be arranged on the second rail. In one embodiment, the first lane may be a main rail, and the second rail may be a sub-rail. In one embodiment, the carrier (330) may be substantially guided to rotate about the first axis (R1) with respect to the middle guide (340) through the first OIS balls (b1) arranged on the first rail, which is the main rail. In one embodiment, the first OIS balls (b1) arranged on the second rail, which is the sub-rail, may assist the rotation of the carrier (330) about the first axis (R1) with respect to the middle guide (340). In one embodiment, the longer the length of the main rail, the more the tilting of the carrier (330) guided by the first OIS ball (b1) arranged on the main rail can be prevented. Accordingly, the main rail (e.g., the first rail) can be formed to have a relatively longer length than the sub rail (e.g., the second rail).
[0113] In one embodiment, referring to FIGS. 5A and 5B , the carrier (330) and the middle guide (340) may be supported at least at three points through the first OIS balls (b1) arranged in the first guide groove (410) and the second guide groove (420). For example, among the three first OIS balls (b1) arranged on the first rail, the first OIS ball (b1) located in the center may be smaller than the first OIS balls (b1) located in the upper direction (e.g., +Z direction with respect to FIG. 5A) and the lower direction (e.g., -Z direction with respect to FIG. 5A). In this case, the carrier (330) and the middle guide (340) may be in contact at three points through the first OIS ball (b1) located in the upper direction on the first rail, the first OIS ball (b1) located in the lower direction, and the first OIS ball (b1) arranged on the second rail.
[0114] In one embodiment, referring to FIG. 5C, two first OIS balls (b1) may be arranged on a first rail (e.g., the first-first guide groove (411) and the second-first guide groove (421) of FIG. 5C). In one embodiment, the two first OIS balls (b1) may be arranged on both sides of a protrusion (360) located on the first rail. For example, the protrusion (360) may be arranged between the two first OIS balls (b1). In one embodiment, the protrusion (360) may be formed on the carrier (330) such that at least a portion thereof may be located on the first-first guide groove (411) and the second-first guide groove (421). In one embodiment, the protrusion (360) may be formed on the middle guide (340) such that at least a portion thereof may be located on the first-first guide groove (411) and the second-first guide groove (421).
[0115] In one embodiment, the carrier (330) and the middle guide (340) are supported at three points via the first OIS ball (b1), so that the carrier (330) can only rotate about the first axis (R1) with respect to the middle guide (340), and linear motion can be prevented. Accordingly, an error in compensation for image shake based on rotation of the carrier (330) about the first axis (R1) can be reduced.
[0116] According to one embodiment, the first-first guide groove (411) and the second-first guide groove (421) constituting the first rail, which is the main rail, may be formed in a shape that can be in contact with the first OIS ball (b1) on at least two sides, respectively. For example, the first-first guide groove (411) and the second-first guide groove (421) may be formed as 'V'-shaped grooves. Since the first-first guide groove (411) and the second-first guide groove (421) are formed as 'V'-shaped grooves, the first OIS ball (b1) arranged on the first rail may be in contact with the inner surface of the first-first guide groove (411) and the inner surface of the second-first guide groove (421). In one embodiment, since the first OIS ball (b1) is arranged on the first rail formed as a 'V'-shaped groove, its movement in a plane other than the movement on the YZ plane may be restricted.
[0117] According to one embodiment, one of the first-second guide groove (412) and the second-second guide groove (422) constituting the second rail, which is the sub-rail, may be formed in a shape such that the inner surface located inside the guide groove and the first OIS ball (b1) can come into contact on at least two sides. The other of the first-second guide groove (412) and the second-second guide groove (422) may be formed in a size such that the first OIS ball (b1) can move. In one embodiment, the shape such that the inner surface located inside the guide groove and the first OIS ball (b1) can come into contact on at least two sides may be formed as a 'V'-shaped groove. In one embodiment, the first OIS ball (b1) may only be capable of rolling motion through contact with the inner surface located inside the guide groove. The guide groove formed in a size such that the first OIS ball (b1) can move may be a 'U'-shaped groove. In one embodiment, the first OIS ball (b1) may be capable of up-down and left-right movement in addition to rolling movement inside a 'U' shaped guide groove.
[0118] In one embodiment, the first-second guide groove (412) may be formed as a 'V'-shaped groove, and the second-second guide groove (422) may be formed as a 'U'-shaped groove. Conversely, the first-second guide groove (412) may be formed as a 'U'-shaped groove, and the second-second guide groove (422) may be formed as a 'V'-shaped groove. In one embodiment, the first-second guide groove (412) and the second-second guide groove (422) may be formed as 'U'-shaped grooves.
[0119] In one embodiment, the gap between the first-first guide groove (411) and the first-second guide groove (412) formed in the carrier (330) may be different from each other due to reasons such as the gap between the second-first guide groove (421) and the second-second guide groove (422) formed in the middle guide (340) and the tolerance in the manufacturing process. In one embodiment, the first OIS ball (b1) positioned inside the 'U'-shaped groove is movable inside the 'U'-shaped groove, and thus the difference in the gap between the first-first guide groove (411) and the first-second guide groove (412) and the gap between the second-first guide groove (421) and the second-second guide groove (422) can be compensated for.
[0120] In one embodiment, referring to FIGS. 5A and 5B, one of a first attraction magnet (611) and a second attraction magnet (e.g., the second attraction magnet (1112) of FIG. 9B and / or the second attraction magnet (1412) of FIG. 12B) may be disposed on the second side of the carrier (330). In one embodiment, one of the first attraction magnet (611) and the second attraction magnet may be disposed on one side of the middle guide (340) facing the second side of the carrier (330). In one embodiment, the first attracting magnet (611) and the second attracting magnet may be magnets or metal plates having magnetism (e.g., a yoke). In one embodiment, an attractive force may act between the first attracting magnet (611) and the second attracting magnet. The carrier (330) and the middle guide (340) may be pulled toward each other through the attractive force acting between the first attracting magnet (611) and the second attracting magnet. Accordingly, the carrier (330) and the middle guide (340) may be maintained in contact with the first OIS ball (b1) disposed between the first guide groove (410) and the second guide groove (420).
[0121] According to one embodiment, the first magnetic attraction body (611) and the second magnetic attraction body may be configured in various shapes. In one embodiment, referring to FIG. 3A, the first magnetic attraction body (611) may be configured with two magnets in a straight shape. In this case, the second magnetic attraction body may be configured with two magnets in a straight shape corresponding to the first magnetic attraction body (611). Additionally, the first magnetic attraction body (611) may be configured with a cross-shaped magnetic body. In this case, the second magnetic attraction body may be configured with a cross-shaped magnetic body corresponding to the first magnetic attraction body (611).
[0122] In one embodiment, when the carrier (330) is moved in an unintended direction other than rotation about the first axis (R1) with respect to the camera housing (320) via the first OIS actuator (511, 512) and / or the third OIS actuator (531, 532), the carrier can be returned to its home position via an attractive force between the first and second attracting magnets (611). The 'home position' of the carrier (330) may be its original state assembled to the camera housing (320) and may not be rotated about the first axis (R1). For example, the home position may be a position relative to the camera housing (320) when the OIS actuator is not driven, such as when the carrier (330) is not tilted with respect to the middle guide (340).
[0123] In one embodiment, when power to the camera module (300) is turned off, the carrier (330) can return to the basic position and / or maintain the basic position with respect to the middle guide (340) based on the attractive force acting between the first and second attracting magnets. For example, when power to the camera module (300) is turned off while the carrier (330) is rotated with respect to the middle guide (340) about the first axis (R1), the carrier (330) can be restored to the basic position with respect to the middle guide (340) through the attractive force acting between the first and second attracting magnets.
[0124] According to one embodiment, as illustrated in FIGS. 3A and 4, the base portion (350) may be positioned on the second portion (322) of the camera housing (320) so as to face the middle guide (340). In one embodiment, the middle guide (340) may include a third guide groove (430) facing the second portion (322). The base portion (350) may include a fourth guide groove (440) corresponding to the third guide groove (430). In one embodiment, the third guide groove (430) and the fourth guide groove (440) may be positioned in a direction perpendicular to the emission surface (S2) of the reflective member (R) (e.g., the + X direction in FIG. 3A).
[0125] According to one embodiment, as illustrated in FIGS. 4, 5A, and 5B, the carrier (330) may include a first guide groove (410) facing the second portion (322) of the camera housing (320). The middle guide (340) may be formed on a surface facing the carrier (330) and may include a second guide groove (420) corresponding to the first guide groove (410). The first guide groove (410) and the second guide groove (420) may be positioned in a direction perpendicular to the emission surface (S2) of the reflective member (R) (e.g., the + X direction in FIG. 3A).
[0126] In one embodiment, referring to FIG. 4, the third guide groove (430) and the fourth guide groove (440) may be formed in a shape such that the middle guide (340) can rotate about the second axis (R2) with respect to the base portion (350). For example, referring to FIGS. 3A and 4, the third guide groove (430) and the fourth guide groove (440) may be a portion of an imaginary circle on the XZ plane of FIG. 4 that is perpendicular to the second axis (R2). In one embodiment, the third guide groove (430) and the fourth guide groove (440) may have the same curvature.
[0127] According to one embodiment, as illustrated in FIG. 4, a second OIS ball (b2) may be positioned between the third guide groove (430) and the fourth guide groove (440). The second OIS ball (b2) may guide rotation of the middle guide (340) with respect to the base portion (350) about the second axis (R2).
[0128] According to one embodiment, as illustrated in FIG. 4, the carrier (330) may partially cover the middle guide (340). In one embodiment, the support portion (332) of the carrier (330) may cover the middle guide (340). For example, the support portion (332) may be in contact with the middle guide (340). In one embodiment, when the middle guide (340) rotates about the second axis (R2) through the operation of the second OIS actuator (521, 522), the carrier (330) may move together with the middle guide (340) through the support portion (332). Accordingly, the carrier (330) and the reflective member (R) may rotate about the second axis (R2) through the middle guide (340) with respect to the image sensor (230) to correct image shake.
[0129] According to one embodiment, as illustrated in FIG. 3A, the third guide groove (430) may include a third-first guide groove (431) and a third-second guide groove (432). In one embodiment, the third-first guide groove (431) and the third-second guide groove (432) may be arranged to be opposite to the center of the middle guide (340) with respect to the Z-axis of FIG. 3A. In one embodiment, the fourth guide groove (440) may include a fourth-first guide groove (441) corresponding to the third-first guide groove (431) and a fourth-second guide groove (442) corresponding to the third-second guide groove (432).
[0130] In one embodiment, a second OIS ball (b2) may be placed between the 3-1 guide groove (431) and the 4-1 guide groove (441) (hereinafter, the third rail). In one embodiment, a second OIS ball (b2) may be placed between the 3-2 guide groove (432) and the 4-2 guide groove (442) (hereinafter, the fourth rail).
[0131] According to one embodiment, the 3-1 guide groove (431) and the 4-1 guide groove (441) constituting the 3rd rail may be formed in a shape that can be in contact with the 2nd OIS ball (b2) on at least two sides, respectively. For example, the 3-1 guide groove (431) and the 4-1 guide groove (441) may be formed as 'V'-shaped grooves. Since the 3-1 guide groove (431) and the 4-1 guide groove (441) are formed as 'V'-shaped grooves, the 2nd OIS ball (b2) arranged on the 3rd rail may be in contact with the inner surface of the 3-1 guide groove (431) and the inner surface of the 4-1 guide groove (441). In one embodiment, since the 2nd OIS ball (b2) is arranged on the 3rd rail formed as a 'V'-shaped groove, its movement in a plane other than the movement on the XZ plane may be restricted.
[0132] According to one embodiment, one of the 3-2 guide groove (432) and the 4-2 guide groove (442) constituting the fourth rail may be formed in a shape such that the inner surface located inside the guide groove and the second OIS ball (b2) can be in contact with each other on at least two sides. The other of the 3-2 guide groove (432) and the 4-2 guide groove (442) may be formed in a size such that the second OIS ball (b2) can move. In one embodiment, the shape such that the inner surface located inside the guide groove and the second OIS ball (b2) can be in contact with each other on at least two sides may be formed as a 'V' shaped groove. In one embodiment, the second OIS ball (b2) may only be capable of rolling motion through contact with the inner surface located inside the guide groove. The guide groove formed in a size such that the second OIS ball (b2) can move may be a 'U' shaped groove. In one embodiment, the second OIS ball (b2) may be capable of up-down and left-right movement in addition to rolling movement inside a 'U' shaped guide groove.
[0133] In one embodiment, the third-second guide groove (432) may be formed as a 'V'-shaped groove, and the fourth-second guide groove (442) may be formed as a 'U'-shaped groove. Conversely, the third-second guide groove (432) may be formed as a 'U'-shaped groove, and the fourth-second guide groove (442) may be formed as a 'V'-shaped groove. In one embodiment, the third-second guide groove (432) and the fourth-second guide groove (442) may be formed as 'U'-shaped grooves.
[0134] In one embodiment, the gap between the 3-1 guide groove (431) and the 3-2 guide groove (432) formed in the middle guide (340) may be different from each other due to reasons such as the gap between the 4-1 guide groove (441) and the 4-2 guide groove (442) formed in the base portion (350) and the tolerance in the manufacturing process. In one embodiment, the second OIS ball (b2) located inside the 'U' shaped groove can move inside the 'U' shaped groove, and thus can compensate for the difference in the gap between the 3-1 guide groove (431) and the 3-2 guide groove (432) and the gap between the 4-1 guide groove (441) and the 4-2 guide groove (442).
[0135] According to one embodiment, as illustrated in FIG. 3a, a third attraction magnet (613) may be placed in the second portion (322) of the camera housing (320). In one embodiment, the third magnetic attractor (613) may be a magnet or a metal plate having magnetism (e.g., a yoke). In one embodiment, the third magnetic attractor (613) may be disposed on a flexible printed circuit board (560) and disposed on the outside of the base portion (350). In one embodiment, the third magnetic attractor (613) and the second OIS coil (522) may face each other with respect to the flexible printed circuit board (560). For example, the third magnetic attractor (613) may be disposed on one surface of the flexible printed circuit board (560) and disposed on the outside of the base portion (350), and the second OIS coil (522) may be disposed on the other surface, which is the opposite surface of one surface of the flexible printed circuit board (560), and disposed on the inside of the base portion (350). In summary, the second OIS coil (522) may be formed by the second OIS magnetic attractor (521) and the second OIS coil (522). It can be placed between the third suction magnets (613).
[0136] In one embodiment, an attractive force may be applied between the third attracting magnet (613) and the second OIS magnet (521) disposed in the middle guide (340). In one embodiment, the middle guide (340) and the base portion (350) may be pulled toward each other through the attractive force applied between the second OIS magnet (521) and the third attracting magnet (613). Accordingly, the middle guide (340) and the base portion (350) may be maintained in contact with the second OIS ball (b2) disposed between the third guide groove (430) and the fourth guide groove (440).
[0137] According to one embodiment, the camera module (300) may include at least one lens module facing at least one of an incident surface (S1) of the reflective member (R) and an exit surface (S2) of the reflective member (R). In one embodiment, the first lens module may be arranged to face the incident surface (S1) of the reflective member (R). In one embodiment, the second lens module may be arranged to face the exit surface (S2) of the reflective member (R). In one embodiment, at least a portion of the first lens module and the second lens module may be coupled to the carrier (330) and may rotate relative to the camera housing (320) based on the driving of the first OIS actuator (511, 512), the second OIS actuator (521, 522), and / or the third OIS actuator (531, 532) together with the carrier (330). In one embodiment, the camera module (300) may omit at least one of the first lens module and the second lens module.
[0138] FIG. 6A is an exploded perspective view of a camera module according to one embodiment of the present disclosure. FIG. 6B is a drawing illustrating the coupling relationship between the base portion, the middle guide, and the carrier of FIG. 6A. FIG. 7A is a cross-sectional view taken along line B1-B1 of FIG. 6B. FIG. 7B is a cross-sectional view taken along line B2-B2 of FIG.
[0139] The following description may be a description of a camera module (700) of one embodiment. Descriptions of components identical or similar to those described through FIGS. 3A to 5B will be omitted.
[0140] In addition, in the following description, the overlapping contents with FIGS. 3a to 5b are excluded, and the different parts from the contents described in FIGS. 3a to 5b are described.
[0141] In one embodiment, a reflective actuator including a carrier (730) and a reflective member (R) disposed on a mounting portion (731) of the carrier (730), as described in FIGS. 3A to 5B, may be disposed in the camera housing (720) so as to be rotatable relative to an image sensor (230) located in a fourth portion (724) of the camera housing (720). In one embodiment, the carrier (730) may function as an optical image stabilizer (OIS) to compensate for shake occurring in the camera module (700) by rotating the camera housing (720) about a first axis (R1) (e.g., X axis, yaw axis of FIG. 6B) and a second axis (R2) (e.g., Y axis, pitch axis of FIG. 6B) via the first OIS actuator (511, 512), the second OIS actuator (521, 522), and / or the third OIS actuator (531, 532).
[0142] In one embodiment, as described in FIGS. 3A to 5B, the camera module may perform an AF (auto focus) function to automatically adjust the focus of a lens (e.g., lens (3101) of FIG. 3A) on a subject outside the electronic device (101) by moving a lens driving unit (e.g., lens driving unit (310) of FIG. 3A) relative to an image sensor (230) under the control of the processor (120). In one embodiment, the lens driving unit (310) can move along the optical axis (OA) of the lens (e.g., the X-axis direction in FIG. 6A) relative to the image sensor (230) (e.g., the image sensor (230) in FIG. 2) via at least one of the first AF actuator (e.g., the first AF actuator (541, 542) in FIG. 3A) and the second AF actuator (e.g., the second AF actuator (551, 552) in FIG. 3A).
[0143] According to one embodiment, as illustrated in FIGS. 6A and 6B, the camera module (700) may include a camera housing (720), a reflective actuator, a middle guide (740), a base (750), a lens driving unit (e.g., the lens driving unit (310) of FIG. 3A), a flexible printed circuit board (560), a first OIS actuator (511, 512), a second OIS actuator (521, 522), a third OIS actuator (531, 532), a first AF actuator (541, 542), a second AF actuator (551, 552), a first OIS ball (b1), a second OIS ball (b2), and / or an AF ball (b3). At least one of the above-described configurations may be omitted or at least one configuration may be added. In one embodiment, at least one of the first OIS actuator (511, 512) and the third OIS actuator (531, 532) may be omitted.
[0144] In one embodiment, referring to FIGS. 6A and 6B, the reflective actuator, the middle guide (740), the base (750), the lens driver, and the image sensor (230) may be arranged in the camera housing (720). In one embodiment, the camera housing (720) may be arranged in the following order: base (750) - middle guide (740) - reflective actuator - lens driver - image sensor (230).
[0145] According to one embodiment, as illustrated in FIG. 7A, the carrier (730) may include a mounting portion (731) on which a reflective member (R) is disposed. In one embodiment, the mounting portion (731) may include a groove having a shape corresponding to that of the carrier (730). In one embodiment, the mounting portion (731) may include an inclined surface (7311) facing the reflective surface (S3) of the carrier (730). In one embodiment, the inclined surface (7311) may be parallel to the reflective surface (S3). In one embodiment, the reflective surface (S3) of the reflective member (R) may be a surface inclined at a predetermined angle with respect to the support surface (725) of the camera housing (720). The inclined surface (7311) may form a predetermined angle with the support surface (725) of the camera housing (720) by being substantially parallel to the reflective surface (S3).
[0146] In one embodiment, referring to FIGS. 6A to 7A, the middle guide (740) may be disposed at least partially between the carrier (730) and a portion (e.g., the second portion (722)) of the camera housing (720). The middle guide (740) may guide the carrier (730) to rotate about a first axis (R1) (e.g., the X-axis, the yaw axis of FIG. 6A) that is perpendicular to the exit surface (S2) of the reflective member (R). In one embodiment, a first guide groove (810) formed in the carrier (730) and a second guide groove (820) formed in the middle guide (740) may face each other. A first OIS ball (b1) may be disposed between the first guide groove (810) and the second guide groove (820). In one embodiment, the carrier (730) can rotate about the first axis (R1) with respect to the middle guide (740) with the first OIS ball (b1) as a support point. Accordingly, the processor can rotate the carrier (730) and the reflective member (R) about the first axis (R1) with respect to the image sensor (230) based on the operation of the first OIS actuator (511, 512) and / or the third OIS actuator (531, 532), thereby correcting image shake.
[0147] In one embodiment, a first OIS coil (512) of a first OIS actuator (511, 512) may be energized by a current applied from a flexible printed circuit board (560). As the current flows through the first OIS coil (512), a magnetic field is formed, and a Lorentz force acting between the first OIS coil (512) and the first OIS magnet (511) allows the carrier (730) and the reflective member (R) to rotate around the first axis (R1).
[0148] In one embodiment, a third OIS coil (532) of a third OIS actuator (531, 532) may be energized by a current applied from a flexible printed circuit board (560). As the current flows through the third OIS coil (532), a magnetic field is formed, and the carrier (730) and the reflective member (R) may rotate around the first axis (R1) through a Lorentz force acting between the third OIS coil (532) and the third OIS magnet (531).
[0149] In one embodiment, referring to FIGS. 6A to 7B, the base portion (750) may be a relative fixture for the middle guide (740). In one embodiment, the base portion (750) may be positioned on a portion (e.g., the second portion (722)) of the camera housing (720) so as to face the middle guide (740). In one embodiment, the base portion (750) may guide the middle guide (740) to rotate about a second axis (R2) (e.g., the Y axis, the pitch axis of FIG. 6A) that is perpendicular to the first axis (R1) and parallel to one side of the support surface (725) of the camera housing (720). The third guide groove (830) formed in the middle guide (740) (e.g., the third-first guide groove (831), the third-second guide groove (832) of FIG. 6A) and the fourth guide groove (840) formed in the base portion (750) (e.g., the fourth-first guide groove (841), the fourth-second guide groove (842) of FIG. 6A) may face each other. In one embodiment, the third guide groove (830) and the fourth guide groove (840) may be formed in a shape such that the middle guide (740) can rotate about the second axis (R2) with respect to the base portion (750). For example, referring to FIGS. 6A and 7A, the third guide groove (830) and the fourth guide groove (840) may be a part of an imaginary circle on the XZ plane of FIG. 6A that is perpendicular to the second axis (R2). In one embodiment, the third guide groove (830) and the fourth guide groove (840) may have the same curvature. In one embodiment, a second OIS ball (b2) may be arranged inside the third guide groove (830) and the fourth guide groove (840) to guide the rotation of the middle guide (740) with respect to the base portion (750). The middle guide (740) may rotate about the second axis (R2) with respect to the base portion (750) via the second OIS ball (b2). In one embodiment, the second OIS ball (b2) may move along the third guide groove (830) and the fourth guide groove (840) based on the rotation of the middle guide (740) with respect to the base portion (750).
[0150] According to one embodiment, as illustrated in FIGS. 6A and 7A, the carrier (730) may partially cover the middle guide (740). In one embodiment, the support portion (732) of the carrier (730) may cover the middle guide (740). For example, the support portion (732) may be in contact with the middle guide (740). In one embodiment, when the middle guide (740) rotates about the second axis (R2) through the operation of the second OIS actuator (521, 522), the carrier (730) may move together with the middle guide (740) through the support portion (732). Accordingly, the processor (e.g., the processor (120) of FIG. 1) can compensate for image shake by rotating the carrier (730) and the reflective member (R) about the second axis (R2) with respect to the image sensor (230) based on the operation of the second OIS actuator (521, 522). In one embodiment, the reflective member (R) is disposed on the mounting portion (731) of the carrier (730) and can rotate together with the carrier (730).
[0151] In one embodiment, a second OIS coil (522) of a second OIS actuator (521, 522) may be energized by a current applied from a flexible printed circuit board (560). As the current flows through the second OIS coil (522), a magnetic field is formed, and the middle guide (740) and the carrier (730) may rotate about the second axis (R2) through a Lorentz force acting between the second OIS coil (522) and the second OIS magnet (521).
[0152] In one embodiment, the first OIS magnet (511) may be disposed on one surface of the carrier (730) to face the first OIS coil (512) disposed in the first part (721) of the camera housing (720). The third OIS magnet (531) may be disposed on the other surface, which is the opposite surface of the one surface of the carrier (730), to face the third OIS coil (532) disposed in the third part (723) of the camera housing (720). In one embodiment, the second OIS magnet (521) may be disposed on the middle guide (740) to face the second OIS coil (522) disposed in the second part (722) of the camera housing (720). Since the first part (721) and the second part (722) of the camera housing (720) are in a mutually perpendicular positional relationship, the first OIS magnetic body (511) and the second OIS magnetic body (521) may be in mutually perpendicular positions. Since the second part (722) and the third part (723) of the camera housing (720) are in mutually perpendicular positional relationship, the second OIS magnetic body (521) and the third OIS magnetic body (531) may be in mutually perpendicular positions.
[0153] In one embodiment, at least one of the first OIS actuator (511, 512) and the third OIS actuator (531, 532) may be omitted. In one embodiment, the first OIS actuator (511, 512) may be omitted. In this case, the camera module (700) may correct image shake as the carrier (730) rotates about the first axis (R1) via the third OIS actuator (531, 532) and rotates about the second axis (R2) via the second OIS actuator (521, 522).
[0154] In one embodiment, the third OIS actuator (531, 532) may be omitted. In this case, the camera module (700) can compensate for image shake as the carrier (730) rotates around the first axis (R1) via the first OIS actuator (511, 512) and around the second axis (R2) via the second OIS actuator (521, 522).
[0155] In the following description, the camera module (700) is described on the assumption that it includes a first OIS actuator (511, 512), a second OIS actuator (521, 522), and a third OIS actuator (531, 532). However, the following description may be equally applied to a case where the camera module (700) includes a first OIS actuator (511, 512) and a second OIS actuator, or a case where it includes a second OIS actuator (521, 522) and a third OIS actuator (531, 532).
[0156] According to one embodiment, the first OIS actuator (511, 512) may not be limited to the first OIS magnet (511) and the first OIS coil (512) disposed on the carrier (730). In one embodiment, the first OIS magnet (511) may be disposed on the bottom surface of the carrier (730) facing the support surface (725) of the camera housing (720) (e.g., the surface facing in the -Z direction with reference to FIG. 6A). The first OIS coil (512) may be disposed on the support surface (725) of the camera housing (720) to face the first OIS magnet (511). In this case, the first OIS coil (512) may be a coil wound multiple times (e.g., a cylindrical coil). In one embodiment, the carrier (730) can rotate about the first axis (R1) to correct image shake through a solenoid force acting between the first OIS magnet (511) disposed on the bottom surface of the carrier (730) and the first OIS coil (512) disposed on the support surface (725) of the camera housing (720).
[0157] According to one embodiment of the present disclosure, the reflective actuator (e.g., the reflective member (R), the carrier (730)) can rotate about a first axis (R1) (e.g., the yaw axis) with respect to the camera housing (720). As the reflective actuator rotates about the first axis (R1) (e.g., the yaw axis) to compensate for image shake, the gap between the middle guide (740) and the carrier (730) can be reduced compared to when the reflective actuator rotates about the Z axis (e.g., the roll axis) of FIG. 6B to compensate for image shake. For example, when the reflective actuator rotates about the Z axis of FIG. 6B, a gap may be required in the X-axis direction of FIG. 6B between the carrier (730) and the middle guide (740) for driving the carrier (730). Therefore, as in the present disclosure, when the reflective actuator rotates about the first axis (R1) to correct image shake, the gap in the X-axis direction between the carrier (730) and the middle guide (740) is relatively reduced, so that the size of the camera module (700) can be reduced. In addition, in one embodiment, when the reflective actuator rotates about the first axis (R1), the image rotation phenomenon occurring during image shake correction can be reduced compared to when the reflective actuator rotates about the Z-axis of FIG. 6B.
[0158] According to one embodiment, as illustrated in FIG. 7A, the carrier (730) may include a first planar portion (733) having a first guide groove (810) formed therein (e.g., a first-first guide groove (811), a first-second guide groove (812)). In one embodiment, the first planar portion (733) may be substantially parallel to a support surface (725) of the camera housing (720). In one embodiment, the first guide groove (810) may be formed in the first planar portion (733) to face a second planar portion (741) of the middle guide (740).
[0159] According to one embodiment, as illustrated in FIG. 7A, the middle guide (740) may include a second planar portion (741) having a second guide groove (820) formed therein. In one embodiment, the second planar portion (741) may be substantially parallel to a support surface (725) of the camera housing (720). In one embodiment, the second guide groove (820) may be formed in the second planar portion (741) and may face the first guide groove (810) formed in the first planar portion (733) of the carrier (730).
[0160] In one embodiment, referring to FIG. 7a, the first guide groove (810) and the second guide groove (820) may be positioned in a direction perpendicular to the emission surface (S2) of the reflective member (R) (e.g., the + X direction in FIG. 7a).
[0161] According to one embodiment, as illustrated in FIG. 7A, the first guide groove (810) may include a first-first guide groove (811) and a first-second guide groove (812). In one embodiment, the first guide groove (810) and the second guide groove (820) may be arranged in parallel along the X-axis of FIG. 7A. In one embodiment, the first-first guide groove (811) and the first-second guide groove (812) may be arranged on an optical axis (e.g., the X-axis of FIG. 7A) passing through the center of the exit surface (S2) of the reflective member (R). In one embodiment, the first axis (R1), which is the rotational axis of the reflective actuator, may be the same axis as the optical axis passing through the center of the exit surface (S2). Therefore, the first axis (R1) may pass through the first-first guide groove (811) and the first-second guide groove (812).
[0162] According to one embodiment, as illustrated in FIG. 7a, the second guide groove (820) may include a second-first guide groove (821) corresponding to the first-first guide groove (811) and a second-second guide groove (822) corresponding to the first-second guide groove (812).
[0163] According to one embodiment, as illustrated in FIGS. 6A and 7A, the carrier (730) can rotate about a first axis (R1) with respect to the middle guide (740) with the first OIS ball (b1) as a support point. In one embodiment, the carrier (730) and the middle guide (740) can be in contact at least two points through the first OIS ball (b1). In one embodiment, the carrier (730) can be coupled to the middle guide (740) such that movement in a direction other than rotation on the YZ plane of FIG. 6A about the first axis (R1) with respect to the middle guide (740) is restricted through the first OIS ball (b1). For example, movement in a direction other than rotation on the YZ plane of FIG. 6A may be restricted through a portion of the middle guide (740).
[0164] In one embodiment, the carrier (730) can rotate on the YZ plane of FIG. 6A with respect to the middle guide (740) with the first OIS ball (b1) as a support point. In one embodiment, the first OIS ball (b1) does not move relative to the carrier (730), and the carrier (730) can move relative to the first OIS ball (b1) with the first OIS ball (b1) as a center point. Accordingly, the processor (120) can rotate the carrier (730) and the reflective member (R) about the first axis (R1) with respect to the image sensor (230) based on the operation of the first OIS actuators (511, 512) and / or the third OIS actuators (531, 532) to correct image shake.
[0165] According to one embodiment of the present disclosure, the carrier (730) can rotate about a first axis (R1) based on the operation of the first OIS actuator (511, 512) and / or the third OIS actuator (531, 532). The carrier (330) can rotate about a second axis (R2) based on the operation of the second OIS actuator (521, 522). In one embodiment, the first axis (R1) can be an emission optical axis that is parallel to the X-axis of FIG. 6B and passes through the center of the emission surface (S2) of the reflective member (R). In one embodiment, the second axis (R2) can be an axis that is parallel to the Y-axis of FIG. 6A and passes through the reflection surface (S3) of the reflective member (R). In one embodiment, the intersection of the first axis (R1) and the second axis (R2) is located at the reflective surface (S3) and may be the center of rotation of the carrier (730) and the reflective member (R).
[0166] In one embodiment, the reflection center may be the intersection of an incident optical axis (e.g., the Z-axis in FIG. 7A) passing through the center of an incident surface (S1) of the reflective member (R) and an exit optical axis (e.g., the X-axis in FIG. 7A) passing through the center of an exit surface (S2) of the reflective member (R). In one embodiment, the reflection center may be located at the reflective surface (S3). In one embodiment, the reflection center and the rotation center may coincide. Therefore, according to one embodiment of the present disclosure, as the rotation center of the reflective member (R) and the reflection center of the reflective member (R) coincide, an error in compensation for image shake based on the control of the first OIS actuator (511, 512), the second OIS actuator (521, 522), and the third OIS actuator (531, 532) may be reduced.
[0167] In one embodiment, referring to FIG. 7A, the first-first guide groove (811) and the second-first guide groove (821) may be formed in a shape that can be in contact with the first OIS ball (b1) on at least two sides, respectively. For example, the first-first guide groove (811) and the second-first guide groove (821) may be formed as 'V'-shaped grooves. Since the first-first guide groove (811) and the second-first guide groove (821) are formed as 'V'-shaped grooves, the first OIS ball (b1) disposed between the first-first guide groove (811) and the second-first guide groove (821) (e.g., the first rail) may be in contact with the inner surface of the first-first guide groove (811) and the inner surface of the second-first guide groove (821). Accordingly, the first OIS ball (b1) placed on the first rail can substantially guide the rotation of the carrier (730) in the direction of the first axis (R1).
[0168] In one embodiment, referring to FIG. 7A, at least one of the first-second guide groove (812) and the second-second guide groove (822) may be formed to a size that allows the first OIS ball (b1) to move. The guide groove formed to a size that allows the first OIS ball (b1) to move may be a 'U'-shaped groove. In one embodiment, the first OIS ball (b1) may be capable of up-down and left-right movement in addition to rolling movement inside the 'U'-shaped guide groove.
[0169] In one embodiment, the first-second guide groove (812) may be formed as a 'V'-shaped groove, and the second-second guide groove (822) may be formed as a 'U'-shaped groove. Conversely, the first-second guide groove (812) may be formed as a 'U'-shaped groove, and the second-second guide groove (822) may be formed as a 'V'-shaped groove. In one embodiment, the first-second guide groove (812) and the second-second guide groove (822) may be formed as 'U'-shaped grooves.
[0170] In one embodiment, the gap between the first-first guide groove (811) and the first-second guide groove (812) formed in the carrier (730) may be different from each other due to reasons such as the gap between the second-first guide groove (821) and the second-second guide groove (822) formed in the middle guide (740) and the tolerance in the manufacturing process. In one embodiment, the first OIS ball (b1) positioned inside the 'U'-shaped groove is movable inside the 'U'-shaped groove, and thus the difference in the gap between the first-first guide groove (811) and the first-second guide groove (812) and the gap between the second-first guide groove (821) and the second-second guide groove (822) can be compensated for.
[0171] According to one embodiment, one side of the carrier (730) facing the middle guide (740) may be arranged with either a first attraction magnet (e.g., the first attraction magnet (611) of FIG. 3A, the first attraction magnet (1111) of FIG. 9B, and / or the second attraction magnet (1411) of FIG. 12B) or a second attraction magnet (e.g., the second attraction magnet (1112) of FIG. 9B and / or the second attraction magnet (1412) of FIG. 12B). In one embodiment, the other side of the middle guide (740) facing the carrier (730) may be arranged with either the first attraction magnet or the second attraction magnet. In one embodiment, the first and second attracting magnets may be magnets or metal plates having magnetism (e.g., a yoke). In one embodiment, an attractive force may act between the first and second attracting magnets. The carrier (730) and the middle guide (740) may be attracted to each other through the attractive force acting between the first and second attracting magnets. Accordingly, the carrier (730) and the middle guide (740) may be maintained in contact with the first OIS ball (b1) disposed between the first guide groove (810) and the second guide groove (820).
[0172] According to one embodiment, as illustrated in FIG. 6a, a third attracting magnet (613) may be placed in the second portion (722) of the camera housing (720). In one embodiment, the third magnetic attractor (613) may be a magnet or a metal plate having magnetism (e.g., a yoke). In one embodiment, the third magnetic attractor (613) may be disposed on a flexible printed circuit board (560) and disposed on the outside of the base portion (750). In one embodiment, the third magnetic attractor (613) and the second OIS coil (522) may face each other with respect to the flexible printed circuit board (560). For example, the third magnetic attractor (613) may be disposed on one surface of the flexible printed circuit board (560) and disposed on the outside of the base portion (750), and the second OIS coil (522) may be disposed on the other surface, which is the opposite surface of one surface of the flexible printed circuit board (560), and disposed on the inside of the base portion (750). In summary, the second OIS coil (522) may be formed by the second OIS magnetic attractor (521) and the second OIS coil (522). It can be placed between the third suction magnets (613).
[0173] In one embodiment, an attractive force may be applied between the third attracting magnet (613) and the second OIS magnet (521) disposed in the middle guide (740). In one embodiment, the middle guide (740) and the base portion (750) may be pulled toward each other through the attractive force applied between the second OIS magnet (521) and the third attracting magnet (613). Accordingly, the middle guide (740) and the base portion (750) may be maintained in contact with the second OIS ball (b2) disposed between the third guide groove (830) and the fourth guide groove (840).
[0174] According to one embodiment, the camera module (700) may include at least one lens module facing at least one of an incident surface (S1) of the reflective member (R) and an exit surface (S2) of the reflective member (R). In one embodiment, the first lens module may be arranged to face the incident surface (S1) of the reflective member (R). In one embodiment, the second lens module may be arranged to face the exit surface (S2) of the reflective member (R). In one embodiment, the first lens module and the second lens module may be at least partially coupled to a carrier (730) and may rotate with respect to the camera housing (720) based on driving of the first OIS actuator (511, 512), the second OIS actuator (521, 522), and / or the third OIS actuator (531, 532) together with the carrier (730). In one embodiment, the camera module (700) may omit at least one of the first lens module and the second lens module.
[0175] FIG. 8A is an exploded perspective view of a camera module according to one embodiment of the present disclosure. FIG. 8B is a drawing illustrating a coupling relationship between a base portion, a middle guide, and a carrier of FIG. 8A. FIG. 9A is a cross-sectional view taken along line C1-C1 of FIG. 8B. FIG. 9B is a cross-sectional view taken along line C2-C2 of FIG. 10A is a perspective view of the carrier illustrated in FIG. 8A. FIG. 10B is a perspective view of the middle guide illustrated in FIG. 8A.
[0176] The following description may be a description of a camera module (900) of one embodiment. Descriptions of components identical or similar to those described through FIGS. 3A to 7B will be omitted.
[0177] In addition, in the following description, the overlapping contents with FIGS. 3a to 7b are excluded, and the different parts from the contents described in FIGS. 3a to 7b are described.
[0178] According to one embodiment, as illustrated in FIGS. 8A and 8B, the camera module (900) may include a camera housing (920), a reflective actuator, a middle guide (940), a base portion (950), a lens driver (910) (e.g., the lens driver (310) of FIG. 3A), a flexible printed circuit board (560), a first OIS actuator (511, 512), a second OIS actuator (521, 522), a third OIS actuator (531, 532), a first AF actuator (541, 542), a second AF actuator (551, 552), a first OIS ball (b1), a second OIS ball (b2), and / or an AF ball (b3). At least one of the above-described configurations may be omitted or at least one configuration may be added. In one embodiment, at least one of the first OIS actuator (511, 512) and the third OIS actuator (531, 532) may be omitted.
[0179] In one embodiment, referring to FIGS. 8A and 8B, the reflective actuator, the middle guide (940), the base (950), the lens driver (910), and the image sensor (230) may be arranged in the camera housing (920). In one embodiment, the base (950) - the middle guide (940) - the reflective actuator - the lens driver (910) - the image sensor (230) may be arranged in the following order in the camera housing (920).
[0180] According to one embodiment, as illustrated in FIG. 8A, the lens driving unit (910) may include at least one lens (9101), a first AF magnetic body (541) (e.g., a magnet), and a second AF magnetic body (551) (e.g., a magnet). In one embodiment, the lens (9101) may be configured to transmit light emitted from an emission surface (S2) of the reflective member (R) through an incident surface (S1) of the reflective member (R) to the image sensor (230). In one embodiment, the first AF magnetic body (541) may face a first AF coil (542) disposed in a first portion (921) of the camera housing (920). In one embodiment, the second AF magnetic body (551) may face a second AF coil (552) disposed in a third portion (923) of the camera housing (920).
[0181] In one embodiment, the camera module (900) can perform an AF (auto focus) function to automatically adjust the focus of the lens (9101) on a subject by moving the lens driver (910) relative to the image sensor (230) under the control of the processor (120). In one embodiment, the lens driver (910) can move along the optical axis (OA) (e.g., the X-axis direction of FIG. 8A) of the lens (9101) relative to the image sensor (230) via at least one of the first AF actuator (541, 542) and the second AF actuator (551, 552).
[0182] In one embodiment, the reflective actuator may be positioned in the camera housing (920) to be rotatable with respect to the image sensor (230). In one embodiment, the carrier (930) may rotate about a tilt axis (A1) (e.g., the A1 axis in FIGS. 8B and 9A) and a second axis (R2) (e.g., the Y axis, pitch axis in FIG. 8B) with respect to the camera housing (920) via the first OIS actuator (511, 512), the second OIS actuator (521, 522), and / or the third OIS actuator (531, 532) to function as an optical image stabilizer (OIS) to compensate for shake occurring in the camera module (900).
[0183] According to one embodiment, as illustrated in FIGS. 8A and 8B, the camera module (900) can control the first OIS actuator (511, 512), the second OIS actuator (521, 522), and / or the third OIS actuator (531, 532) via the processor (120) to compensate for image shake (e.g., perform an optical image stabilizer (OIS)). In one embodiment, the first OIS actuator (511, 512) is disposed on a carrier (930) and has a first OIS magnetic body (511) (e.g., a magnet) facing the first part (921) of the camera housing (920) and at least a portion of the first OIS magnetic body (511) is disposed on the first part (921) of the camera housing (920) and is connected to a flexible printed circuit board (560). A first OIS coil (512) may be included. In one embodiment, a second OIS actuator (521, 522) may be disposed on a middle guide (940) and may include a second OIS magnetic body (521) (e.g., a magnet) facing a second portion (922) of the camera housing (920) and a second OIS coil (522) disposed on the second portion (922) of the camera housing (920) such that at least a portion thereof faces the second OIS magnetic body (521) and connected to a flexible printed circuit board (560). In one embodiment, a third OIS actuator (531, 532) may be disposed on a carrier (930) and may include a third OIS magnetic body (531) (e.g., a magnet) facing a third portion (923) of the camera housing (920) and at least a portion thereof faces the third OIS magnetic body (531). It may include a third OIS coil (532) disposed in the section (923) and connected to a flexible printed circuit board (560). In addition, the first OIS actuator (511, 512), the second OIS actuator (521, 522), and the third OIS actuator (531, 532) may be changed into various configurations that can rotate the carrier (930) relative to the image sensor (230).
[0184] In one embodiment, referring to FIGS. 8A and 8B , the carrier (930) may include a first surface facing a first portion (921) of the camera housing (920) (e.g., a surface facing the -Y direction with respect to FIG. 8A ), a second surface facing a second portion (922) of the camera housing (920) (e.g., a surface facing the +X direction with respect to FIG. 8A ), and a third surface facing a third portion (923) of the camera housing (920) (e.g., a surface facing the +Y direction with respect to FIG. 8A ). In one embodiment, the first surface and the third surface of the carrier (930) may be substantially parallel to each other. In one embodiment, the second surface of the carrier (930) may be substantially perpendicular to the first surface and the third surface. In one embodiment, a first OIS magnetic body (511) may be disposed on the first surface of the carrier (930). A third OIS magnet (531) may be placed on the third side of the carrier (930). In one embodiment, a first attraction magnet (1111) may be placed on the second side.
[0185] According to one embodiment, the first OIS actuator (511, 512) may not be limited to the first OIS magnetic body (511) and the first OIS coil (512) disposed on the first surface of the carrier (930). In one embodiment, the first OIS magnetic body (511) may be disposed on the bottom surface of the carrier (930) facing the support surface (925) of the camera housing (920) (e.g., the surface facing in the -Z direction with reference to FIG. 8A). The first OIS coil (512) may be disposed on the support surface (925) of the camera housing (920) to face the first OIS magnetic body (511). In this case, the first OIS coil (512) may be a coil wound multiple times (e.g., a cylindrical coil). In one embodiment, the carrier (930) can be rotated about the tilt axis (A1) to correct image shake through a solenoid force acting between the first OIS magnet (511) disposed on the bottom surface of the carrier (930) and the first OIS coil (512) disposed on the support surface (925) of the camera housing (920).
[0186] According to one embodiment, as illustrated in FIGS. 8A and 9A, the carrier (930) may include a mounting portion (931) on which a reflective member (R) is disposed. In one embodiment, the mounting portion (931) may include a groove having a shape corresponding to that of the reflective member (R). In one embodiment, the mounting portion (931) may include an inclined surface (9311) facing the reflective surface (S3) of the carrier (930). In one embodiment, the inclined surface (9311) may be substantially parallel to the reflective surface (S3). In one embodiment, the reflective surface (S3) of the reflective member (R) may be a surface inclined at a predetermined angle with respect to the support surface (925) of the camera housing (920). The inclined surface (9311) may form a predetermined angle with respect to the support surface (925) of the camera housing (920) by being parallel to the reflective surface (S3).
[0187] According to one embodiment, as illustrated in FIGS. 8A, 9A, and 10B, the middle guide (940) may be positioned at least partially between the carrier (930) and a portion of the camera housing (920) (e.g., the second portion (922)). The middle guide (940) may guide the rotation of the carrier (930). For example, the carrier (930) may rotate about an inclined axis (A1) that is parallel to one side of the reflective surface (S3) and inclined at a predetermined angle with respect to the support surface (925) of the camera housing (920) based on the operation of the first OIS actuator (511, 512) and / or the third OIS actuator (531, 532). In one embodiment, the inclined axis (A1) may be an axis that is parallel to one side of the reflective surface (S3). In one embodiment, the middle guide (940) can guide the rotation of the carrier (930) about the inclined axis (A1).
[0188] In one embodiment, a first OIS coil (512) of a first OIS actuator (511, 512) may be energized by a current applied from a flexible printed circuit board (560). As the current flows through the first OIS coil (512), a magnetic field is formed, and the carrier (930) and the reflective member (R) may rotate about the inclined axis (A1) through a Lorentz force acting between the first OIS coil (512) and the first OIS magnet (511).
[0189] In one embodiment, a third OIS coil (532) of a third OIS actuator (531, 532) may be energized by a current applied from a flexible printed circuit board (560). As the current flows through the third OIS coil (532), a magnetic field is formed, and the carrier (930) and the reflective member (R) may rotate about the inclined axis (A1) through a Lorentz force acting between the third OIS coil (532) and the third OIS magnet (531).
[0190] In one embodiment, referring to FIGS. 8A, 9A, and 10B, a first guide groove (1010) formed in a carrier (930) and a second guide groove (1020) formed in a middle guide (940) may face each other. In one embodiment, a first OIS ball (b1), which is a bearing ball that guides the rotation of the carrier (930) with respect to the middle guide (940), may be arranged inside the first guide groove (1010) and the second guide groove (1020). The carrier (930) may rotate about an inclined axis (A1) with respect to the middle guide (940) via the first OIS ball (b1).
[0191] In one embodiment, referring to FIG. 9B, the base portion (950) may be a relative fixture for the middle guide (940). In one embodiment, the base portion (950) may be positioned on a portion (e.g., the second portion (922)) of the camera housing (920) so as to face the middle guide (940). In one embodiment, the base portion (950) may guide the rotation of the middle guide (940) about a second axis (R2) (e.g., the Y axis, the pitch axis of FIG. 9A) that is parallel to one side of the support surface (925) of the camera housing (920).
[0192] In one embodiment, the third guide groove (1030) formed in the middle guide (940) (e.g., the 3-1 guide groove (1031), the 3-2 guide groove (1032) of FIG. 8a) and the fourth guide groove (1040) formed in the base portion (950) (e.g., the 4-1 guide groove (1041), the 4-2 guide groove (1042) of FIG. 8a) may face each other. In one embodiment, referring to FIG. 9a, the first guide groove (1010) and the second guide groove (1020) may be positioned in a direction perpendicular to the emission surface (S2) of the reflective member (R) (e.g., the + X direction of FIG. 9a). In one embodiment, the third guide groove (1030) and the fourth guide groove (1040) may be formed in a shape such that the middle guide (940) can rotate about the second axis (R2) with respect to the base portion (950). For example, referring to FIGS. 8A and 9B, the third guide groove (1030) and the fourth guide groove (1040) may be parts of an imaginary circle on an XZ plane perpendicular to the second axis (R2). In one embodiment, the third guide groove (1030) and the fourth guide groove (1040) may have the same curvature.
[0193] In one embodiment, a second OIS ball (b2), which is a bearing ball that guides the rotation of the middle guide (940) with respect to the base portion (950), may be placed inside the third guide groove (1030) and the fourth guide groove (1040). The middle guide (940) may rotate about the second axis (R2) with respect to the base portion (950) via the second OIS ball (b2).
[0194] According to one embodiment, as illustrated in FIGS. 9A and 9B, the carrier (930) may partially cover the middle guide (940). In one embodiment, the support portion (932) of the carrier (930) may cover the middle guide (940). For example, the support portion (932) may be in contact with the middle guide (940). In one embodiment, when the middle guide (940) rotates about the second axis (R2) through the operation of the second OIS actuator (521, 522), the carrier (930) may move together with the middle guide (940) through the support portion (932). Accordingly, the processor (120) can correct image shake by rotating the carrier (930) and the reflective member (R) about the second axis (R2) with respect to the image sensor (230) based on the operation of the second OIS actuator (521, 522).
[0195] In one embodiment, a second OIS coil (522) of a second OIS actuator (511, 512) may be energized by a current applied from a flexible printed circuit board (560). As the current flows, a magnetic field is formed in the second OIS coil (522), and the middle guide (940) and the carrier (930) may rotate around the second axis (R2) through a Lorentz force acting between the second OIS coil (522) and the second OIS magnet (521).
[0196] In one embodiment, the tilt axis (A1) may be substantially parallel to one side of the reflective surface (S3). For example, the tilt axis (A1) may be substantially parallel to one side of the reflective surface (S3). In one embodiment, the tilt axis (A1) and the reflective surface (S3) may form an incline of about 45 degrees with respect to the support surface (925) of the camera housing (920).
[0197] According to one embodiment, as illustrated in FIGS. 9A and 10A, the carrier (930) may include guide portions (933, 934). In one embodiment, the guide portions (933, 934) may be formed in a direction facing the reflective surface (S3) of the reflective member (R). For example, the guide portions (933, 934) may extend in a direction substantially perpendicular to the inclined surface (9311) from the mounting portion (931) and may extend in a direction facing the reflective member (R). In one embodiment, the guide portions (933, 934) may be formed to be inclined at a predetermined angle with respect to the support surface (925) of the camera housing (920) when the carrier (930) is placed in the camera housing (920). In one embodiment, the guide portions (933, 934) may include a first guide portion (933) and a second guide portion (934). In one embodiment, the first guide portion (933) and the second guide portion (934) may be formed on the back surface of the mounting portion (931) of the carrier (930) so as to face each other.
[0198] According to one embodiment, as illustrated in FIG. 10b, the middle guide (940) may include a receiving portion (941, 942) into which the guide portion (933, 934) of the carrier (930) is inserted. In one embodiment, the receiving portion (941, 942) may be formed in a shape corresponding to the guide portion (933, 934). In one embodiment, the receiving portion (941, 942) may include a first receiving portion (941) corresponding to the first guide portion (933) and a second receiving portion (942) corresponding to the second guide portion (934).
[0199] According to one embodiment, referring to FIGS. 9A, 10A, and 10B, the first guide groove (1010) may be formed in the guide portion (933, 934) of the carrier (930). In one embodiment, the second guide groove (1020) may be formed in the receiving portion (941, 942) of the middle guide (940) to correspond to the first guide groove (1010). In one embodiment, the first guide groove (1010) and the second guide groove (1020) may be parts of an imaginary circle with respect to the inclined axis (A1). In one embodiment, the first guide groove (1010) and the second guide groove (1020) may have the same curvature.
[0200] In one embodiment, a first OIS ball (b1) may be positioned between the first guide groove (1010) and the second guide groove (1020). The carrier (930) may rotate about the tilt axis (A1) with respect to the middle guide (940) via the first OIS ball (b1). Accordingly, the processor may rotate the carrier (930) about the tilt axis (A1) based on the driving of the first OIS actuator (511, 512) and / or the third OIS actuator (531, 532) to correct image shake.
[0201] According to one embodiment, as illustrated in FIGS. 9A and 10A, the first guide groove (1010) may include a first-first guide groove (1011) and a first-second guide groove (1012). In one embodiment, the first-first guide groove (1011) may be formed in the first guide portion (933) of the carrier (930). The first-second guide groove (1012) may be formed in the second guide portion (934) of the carrier (930).
[0202] According to one embodiment, as illustrated in FIGS. 9A and 10B, the second guide groove (1020) may include a second-first guide groove (1021) corresponding to the first-first guide groove (1011), and a second-second guide groove (1022) corresponding to the first-second guide groove (1012). In one embodiment, the second-first guide groove (1021) may be formed in the first receiving portion (941), and the second-second guide groove (1022) may be formed in the second receiving portion (942).
[0203] In one embodiment, the reflection center may be the intersection of an incident optical axis (e.g., the Z-axis in FIG. 8A) passing through the center of the incident surface (S1) of the reflective member (R) and an exit optical axis (e.g., the X-axis in FIG. 8A) passing through the center of the exit surface (S2) of the reflective member (R). In one embodiment, the reflection center may be located at the reflective surface (S3).
[0204] In one embodiment, the center of rotation may be the intersection of the inclined axis (A1) and the second axis (R2). In one embodiment, referring to FIGS. 9A, 10A, and 10B, the first guide groove (1010) and the second guide groove (1020) may be part of an imaginary circle with respect to the inclined axis (A1). In this case, the inclined axis (A1), which is the rotation axis of the carrier (930) and the reflective member (R), may be located on the reflective surface (S3). Accordingly, the center of rotation, which is the intersection of the inclined axis (A1) and the second axis (R2), may be located on the reflective surface (S3).
[0205] In one embodiment, the reflection center and the rotation center may coincide. For example, the tilt axis (A1), which is the rotation axis of the carrier (930) and the reflection member (R), and the second axis (R2) may pass through the intersection of the reflection center. Therefore, according to one embodiment of the present disclosure, since the rotation center of the reflection member (R) and the reflection center of the reflection member (R) coincide, an error in the correction of image shake based on the control of the first OIS actuator (511, 512), the second OIS actuator (521, 522), and the third OIS actuator (531, 532) may be reduced.
[0206] In one embodiment, referring to FIGS. 9A, 10A, and 10B, the first-first guide groove (1011) and the second-first guide groove (1021) of the middle guide (940) may be formed in a shape that can be in contact with the first OIS ball (b1) on at least two sides, respectively. For example, the first-first guide groove (1011) and the second-first guide groove (1021) may be formed as 'V'-shaped grooves. Since the first-first guide groove (1011) and the second-first guide groove (1021) are formed as 'V'-shaped grooves, the first OIS ball (b1) disposed in the first-first guide groove (1011) and the second-first guide groove (1021) may be in contact with the inner surface of the first-first guide groove (1011) and the inner surface of the second-first guide groove (1021). Accordingly, the first OIS ball (b1) arranged in the first-first guide groove (1011) and the second-first guide groove (1021) can substantially guide the rotation of the carrier (930) in the direction of the inclined axis (A1).
[0207] In one embodiment, referring to FIGS. 9A, 10A, and 10B, the first-second guide groove (1012) and the second-second guide groove (1022) may be formed to a size that allows the first OIS ball (b1) to move. The guide groove formed to a size that allows the first OIS ball (b1) to move may be a 'U'-shaped groove. In one embodiment, the first OIS ball (b1) may be capable of up-down and left-right movement in addition to rolling movement inside the 'U'-shaped guide groove.
[0208] In one embodiment, the gap between the first-first guide groove (1011) and the first-second guide groove (1012) formed in the carrier (930) may be different from each other due to reasons such as the gap between the second-first guide groove (1021) and the second-second guide groove (1022) formed in the middle guide (940) and the tolerance in the manufacturing process. In one embodiment, the first OIS ball (b1) positioned inside the 'U'-shaped groove is movable inside the 'U'-shaped groove, and thus the difference in the gap between the first-first guide groove (1011) and the first-second guide groove (1012) and the gap between the second-first guide groove (1021) and the second-second guide groove (1022) can be compensated for.
[0209] According to one embodiment, as illustrated in FIG. 9b, one of the first attraction magnet (1111) and the second attraction magnet (1112) may be disposed on the mounting portion (931) of the carrier (930) facing the middle guide (940). In one embodiment, the other of the first attraction magnet (1111) and the second attraction magnet (1112) may be disposed on one surface of the middle guide (940) facing the carrier (930). In one embodiment, the first attracting magnet (1111) and the second attracting magnet (1112) may be magnets or metal plates having magnetism (e.g., a yoke). In one embodiment, an attractive force may act between the first attracting magnet (1111) and the second attracting magnet (1112). The carrier (930) and the middle guide (940) may be attracted to each other through the attractive force acting between the first attracting magnet (1111) and the second attracting magnet (1112). Accordingly, the carrier (930) and the middle guide (940) may be maintained in contact with the first OIS ball (b1) disposed between the first guide groove (1010) and the second guide groove (1020).
[0210] According to one embodiment, as illustrated in FIG. 8a, a third attraction magnet (613) may be disposed in the second portion (922) of the camera housing (920). In one embodiment, the third magnetic attractor (613) may be a magnet or a metal plate having magnetism (e.g., a yoke). In one embodiment, the third magnetic attractor (613) may be disposed on a flexible printed circuit board (560) and disposed on the outside of the base portion (950). In one embodiment, the third magnetic attractor (613) and the second OIS coil (522) may face each other with respect to the flexible printed circuit board (560). For example, the third magnetic attractor (613) may be disposed on one surface of the flexible printed circuit board (560) and disposed on the outside of the base portion (950), and the second OIS coil (522) may be disposed on the other surface opposite to one surface of the flexible printed circuit board (560) and disposed on the inside of the base portion (950). In summary, the second OIS coil (522) may be formed by the second OIS magnetic attractor (521) and the second OIS coil (522). It can be placed between the third suction magnets (613).
[0211] In one embodiment, an attractive force may be applied between the third attracting magnet (613) and the second OIS magnet (521) disposed in the middle guide (940). In one embodiment, the middle guide (940) and the base portion (950) may be pulled toward each other through the attractive force applied between the second OIS magnet (521) and the third attracting magnet (613). Accordingly, the middle guide (940) and the base portion (950) may be maintained in contact with the second OIS ball (b2) disposed between the third guide groove (1030) and the fourth guide groove (1040).
[0212] According to one embodiment, the carrier (930) may be disposed in the camera housing (920) in a 'default position' when the first OIS actuator (511, 512), the second OIS actuator (521, 522), and / or the third OIS actuator (531, 532) are not operating. In one embodiment, the 'default position' of the carrier (930) may be its original state assembled in the camera housing (920) and may not be rotated about the tilt axis (A1) or the second axis (R2). In one embodiment, when the carrier (930) is in the default position, the incident surface (S1) of the reflective member (R) may be perpendicular to the Z-axis of FIG. 9A, and the exit surface (S2) may be perpendicular to the X-axis of FIG. 9A.
[0213] In one embodiment, the carrier (930) can rotate about the tilt axis (A1) based on the operation of the first OIS actuator (511, 512) and / or the third OIS actuator (531, 532). The carrier (930) can rotate about the second axis (R2) based on the operation of the second OIS actuator (521, 522). In one embodiment, the intersection of the tilt axis (A1) and the second axis (R2) can be the center of rotation of the carrier (930) and the reflective member (R).
[0214] In one embodiment, the reflection center may be the intersection of an incident optical axis (e.g., the Z-axis in FIG. 9A) passing through the center of an incident surface (S1) of the reflective member (R) and an exit optical axis (e.g., the X-axis in FIG. 9A) passing through the center of an exit surface (S2) of the reflective member (R). In one embodiment, the reflection center may be located at the reflective surface (S3). In one embodiment, the reflection center and the rotation center may coincide. In one embodiment, the tilt axis (A1), which is the rotation axis of the carrier (930), and the second axis (R2) may pass through the reflection center. Therefore, according to one embodiment of the present disclosure, since the rotation center of the reflective member (R) and the reflection center of the reflective member (R) coincide, an error in the correction of image shake based on the control of the first OIS actuator (511, 512), the second OIS actuator (521, 522), and the third OIS actuator (531, 532) can be reduced.
[0215] According to one embodiment, the camera module (900) may include at least one lens module facing at least one of an incident surface (S1) of the reflective member (R) and an exit surface (S2) of the reflective member (R). In one embodiment, the first lens module may be arranged to face the incident surface (S1) of the reflective member (R). In one embodiment, the second lens module may be arranged to face the exit surface (S2) of the reflective member (R). In one embodiment, at least a portion of the first lens module and the second lens module may be coupled to a carrier (930) and may rotate with respect to the camera housing (920) based on driving of the first OIS actuator (511, 512), the second OIS actuator (521, 522), and / or the third OIS actuator (531, 532) together with the carrier (930). In one embodiment, the camera module (900) may omit at least one of the first lens module and the second lens module.
[0216] FIG. 11A is an exploded perspective view of a camera module according to one embodiment of the present disclosure. FIG. 11B is a drawing illustrating the coupling relationship between the base portion, the middle guide, and the carrier of FIG. 11A. FIG. 12A is a cross-sectional view taken along line D1-D1 of FIG. 11B. FIG. 12B is a cross-sectional view taken along line D2-D2 of FIG. 11B.
[0217] The following description may be a description of a camera module (1200) of one embodiment. Descriptions of components identical or similar to those described through FIGS. 3A to 10B will be omitted.
[0218] In addition, in the following description, the overlapping contents with FIGS. 3a to 10b are excluded, and the different parts from the contents described in FIGS. 3a to 10b are described.
[0219] According to one embodiment, as illustrated in FIGS. 11A and 11B, the camera module (1200) may include a camera housing (1220), a reflective actuator, a middle guide (1240), a base (1250), a lens driver (e.g., the lens driver (310) of FIG. 3A and the lens driver (910) of FIG. 8A), a flexible printed circuit board (560), a first OIS actuator (511, 512), a second OIS actuator (521, 522), a third OIS actuator (531, 532), a first AF actuator (541, 542), a second AF actuator (551, 552), a first OIS ball (b1), a second OIS ball (b2), and / or an AF ball (b3). At least one of the above-described configurations may be omitted or at least one configuration may be added. In one embodiment, at least one of the first OIS actuator (511, 512) and the third OIS actuator (531, 532) may be omitted.
[0220] In one embodiment, referring to FIGS. 11A and 11B, the reflective actuator, the middle guide (1240), the base portion (1250), the lens driver, and the image sensor (230) may be arranged in the camera housing (1220). In one embodiment, the camera housing (1220) may be arranged in the following order: base portion (1250) - middle guide (1240) - reflective actuator - lens driver - image sensor (230).
[0221] According to one embodiment, the camera module (1200) may include a lens driver (e.g., the lens driver (310) of FIG. 3A, the lens driver (910) of FIG. 8A). In one embodiment, the camera module (1200) may perform an AF (auto focus) function to automatically adjust the focus of a lens (e.g., the lens (3101) of FIG. 3A, the lens (9101) of FIG. 8A) on a subject by moving the lens driver with respect to the image sensor (230) under the control of the processor (120). In one embodiment, the lens driver may move along an optical axis (OA) (e.g., the X-axis direction of FIG. 11A) of the lens with respect to the image sensor (230) via at least one of a first AF actuator (541, 542) and a second AF actuator (551, 552).
[0222] In one embodiment, the reflective actuator may be positioned in the camera housing (1220) to be rotatable with respect to the image sensor (230). In one embodiment, the carrier (1230) may rotate about a tilt axis (A2) (e.g., the A2 axis in FIGS. 11B and 12A) and a second axis (R2) (e.g., the Y axis, pitch axis in FIG. 11B) with respect to the camera housing (1220) via the first OIS actuator (511, 512), the second OIS actuator (521, 522), and / or the third OIS actuator (531, 532) to function as an optical image stabilizer (OIS) to correct shake occurring in the camera module (1200).
[0223] According to one embodiment, as illustrated in FIGS. 11A and 11B, the camera module (1200) can control the first OIS actuator (511, 512), the second OIS actuator (521, 522), and / or the third OIS actuator (531, 532) via the processor (120) to compensate for image shake (e.g., perform an optical image stabilizer (OIS)). In one embodiment, the first OIS actuator (511, 512) is disposed on a carrier (1230) and includes a first OIS magnetic body (511) (e.g., a magnet) facing a first portion (1221) of the camera housing (1220), and a flexible printed circuit disposed on the first portion (1221) of the camera housing (1220) such that at least a portion thereof faces the first OIS magnetic body (511). A first OIS coil (512) connected to a substrate (560) may be included. In one embodiment, a second OIS actuator (521, 522) may be disposed on a middle guide (1240) and may include a second OIS magnetic body (521) (e.g., a magnet) facing a second portion (1222) of the camera housing (1220), and a second OIS coil (522) disposed on the second portion (1222) of the camera housing (1220) such that at least a portion thereof faces the second OIS magnetic body (521) and connected to a flexible printed circuit board. In one embodiment, a third OIS actuator (531, 532) may be disposed on a carrier (1230) and may include a third OIS magnetic body (531) (e.g., a magnet) facing a third portion (1223) of the camera housing (1220), and at least a portion thereof faces the third OIS magnetic body (531). A third OIS coil (532) may be disposed in the third portion (1223) of the housing (1220) and connected to a flexible printed circuit board.In addition, the first OIS actuator (511, 512), the second OIS actuator (521, 522), and the third OIS actuator (531, 532) can be changed into various configurations that can rotate the carrier (1230) relative to the image sensor (230).
[0224] In one embodiment, referring to FIGS. 11A and 11B , the carrier (1230) may include a first side facing a first portion (1221) of the camera housing (1220) (e.g., a side facing the -Y direction in FIG. 11A ), a second side facing a second portion (1222) of the camera housing (1220) (e.g., a side facing the +X direction in FIG. 11A ), and a third side facing a third portion (1223) of the camera housing (1220) (e.g., a side facing the +Y direction in FIG. 11A ). In one embodiment, the first side and the third side of the carrier (1230) may be substantially parallel to each other. In one embodiment, the second side of the carrier (1230) may be substantially perpendicular to the first side and the third side. In one embodiment, a first OIS magnetic body (511) may be disposed on the first side of the carrier (1230). A third OIS magnet (531) may be placed on the third side of the carrier (1230). In one embodiment, a first attraction magnet (1411) may be placed on the second side of the carrier (123).
[0225] According to one embodiment, the first OIS actuator (511, 512) may not be limited to the first OIS magnet (511) and the first OIS coil (512) disposed on the first surface of the carrier (1230). In one embodiment, the first OIS magnet (511) may be disposed on the bottom surface of the carrier (1230) facing the support surface (1225) of the camera housing (1220) (e.g., the surface facing in the -Z direction with reference to FIG. 11A). The first OIS coil (512) may be disposed on the support surface (1225) of the camera housing (1220) to face the first OIS magnet (511). In this case, the first OIS coil (512) may be a coil wound multiple times (e.g., a cylindrical coil). In one embodiment, the carrier (1230) can be rotated about the tilt axis (A2) to correct image shake through a solenoid force acting between the first OIS magnet (511) disposed on the bottom surface of the carrier (1230) and the first OIS coil (512) disposed on the support surface (1225) of the camera housing (1220).
[0226] According to one embodiment, as illustrated in FIG. 11A, the carrier (1230) may include a mounting portion (1231) on which a reflective member (R) is disposed. In one embodiment, the mounting portion (1231) may include a groove having a shape corresponding to that of the reflective member (R). In one embodiment, the mounting portion (1231) may include an inclined surface (12311) facing the reflective surface (S3) of the carrier (1230). In one embodiment, the inclined surface (12311) may be substantially parallel to the reflective surface (S3). In one embodiment, the reflective surface (S3) of the reflective member (R) may be a surface inclined at a predetermined angle with respect to the support surface (1225) of the camera housing (1220). The inclined surface (12311) may form a predetermined angle with respect to the support surface (1225) of the camera housing (1220) by being parallel to the reflective surface (S3).
[0227] According to one embodiment, as illustrated in FIGS. 11A, 12A, and 12B, the middle guide (1240) may be positioned at least partially between the carrier (1230) and a portion of the camera housing (1220) (e.g., the second portion (1222)). The middle guide (1240) may guide the rotation of the carrier (1230). For example, the carrier (1230) may rotate about an inclined axis (A2) that is parallel to one side of the reflective surface (S3) and inclined at a predetermined angle with respect to the support surface (1225) of the camera housing (1220) based on the operation of the first OIS actuator (511, 512) and / or the third OIS actuator (531, 532). In one embodiment, the inclined axis (A2) may be an axis that is parallel to the cross-section of the reflective surface (S3). In one embodiment, the middle guide (1240) can guide the rotation of the carrier (1230) about the inclined axis (A2).
[0228] In one embodiment, a first OIS coil (512) of a first OIS actuator (511, 512) may be energized by a current applied from a flexible printed circuit board (560). As the current flows through the first OIS coil (512), a magnetic field is formed, and the carrier (1230) and the reflective member (R) may rotate about the inclined axis (A2) through a Lorentz force acting between the first OIS coil (512) and the first OIS magnet (511).
[0229] In one embodiment, a third OIS coil (532) of a third OIS actuator (531, 532) may be energized by a current applied from a flexible printed circuit board (560). As the current flows through the third OIS coil (532), a magnetic field is formed, and the carrier (1230) and the reflective member (R) may rotate about the inclined axis (A2) through a Lorentz force acting between the third OIS coil (532) and the third OIS magnet (531).
[0230] In one embodiment, referring to FIG. 12A, a first guide groove (1310) formed in a carrier (1230) and a second guide groove (1320) formed in a middle guide (1240) may face each other. In one embodiment, a first OIS ball (b1), which is a bearing ball that guides the rotation of the carrier (1230) with respect to the middle guide (1240), may be arranged inside the first guide groove (1310) and the second guide groove (1320). The carrier (1230) may rotate about an inclined axis (A2) with respect to the middle guide (1240) via the first OIS ball (b1).
[0231] In one embodiment, referring to FIGS. 11A and 12B, the base portion (1250) may be a relative fixture for the middle guide (1240). In one embodiment, the base portion (1250) may be positioned on a portion (e.g., the second portion (1222)) of the camera housing (1220) so as to face the middle guide (1240). In one embodiment, the base portion (1250) may guide the rotation of the middle guide (1240) about a second axis (R2) (e.g., the Y axis, the pitch axis of FIG. 11A) that is parallel to one side of the support surface (1225) of the camera housing (1220).
[0232] In one embodiment, referring to FIGS. 11A and 12B, the third guide groove (1330) formed in the middle guide (1240) (e.g., the 3-1 guide groove (1331), the 3-2 guide groove (1332) of FIG. 11A) and the fourth guide groove (1340) formed in the base portion (1250) (e.g., the 4-1 guide groove (1341), the 4-2 guide groove (1342)) may face each other. In one embodiment, referring to FIG. 12A, the first guide groove (1310) and the second guide groove (1320) may be positioned in a direction perpendicular to the emission surface (S2) of the reflective member (R) (e.g., the + X direction of FIG. 11A). In one embodiment, the third guide groove (1330) and the fourth guide groove (1340) may be formed in a shape such that the middle guide (1240) can rotate about the second axis (R2) with respect to the base portion (1250). For example, referring to FIG. 11A, the third guide groove (1330) and the fourth guide groove (1340) may be a portion of an imaginary circle on the XZ plane of FIG. 11A that is perpendicular to the second axis (R2). In one embodiment, the third guide groove (1330) and the fourth guide groove (1340) may have the same curvature.
[0233] In one embodiment, referring to FIG. 12B, a second OIS ball (b2), which is a bearing ball that guides the rotation of the middle guide (1240) with respect to the base portion (1250), may be placed inside the third guide groove (1330) and the fourth guide groove (1340). The middle guide (1240) may rotate about the second axis (R2) with respect to the base portion (1250) via the second OIS ball (b2).
[0234] According to one embodiment, as illustrated in FIGS. 12A and 12B, the carrier (1230) may partially cover the middle guide (1240). In one embodiment, the support portion (1232) of the carrier (1230) may cover the middle guide (1240). For example, the support portion (1232) may be in contact with the middle guide (1240). In one embodiment, when the middle guide (1240) rotates about the second axis (R2) through the operation of the second OIS actuator (521, 522), the carrier (1230) may move together with the middle guide (1240) through the support portion (1232). Accordingly, the processor (120) can correct image shake by rotating the carrier (1230) and the reflective member (R) about the second axis (R2) with respect to the image sensor (230) based on the operation of the second OIS actuator (521, 522).
[0235] In one embodiment, a second OIS coil (522) of a second OIS actuator (521, 522) may be energized by a current applied from a flexible printed circuit board (560). As the current flows through the second OIS coil (522), a magnetic field is formed, and the carrier (1230) and the middle guide (1240) may rotate about the second axis (R2) through a Lorentz force acting between the second OIS coil (522) and the second OIS magnet (521).
[0236] According to one embodiment, as illustrated in FIGS. 11A and 12A, the carrier (1230) may include a first-first planar portion (1233) having a first guide groove (1310) (e.g., a first-first guide groove (1311)) formed therein. In one embodiment, the first planar portion (1233) may be substantially parallel to a support surface (1225) of the camera housing (1220). In one embodiment, the carrier (1230) may include a first-second planar portion (1234) having a first guide groove (1310) (e.g., a first-second guide groove (1312)) formed therein and positioned in the +Z direction of FIG. 12A with respect to the first-first planar portion (1233). In one embodiment, the first-second planar portion (1234) may be substantially parallel to a support surface (1225) of the camera housing (1220).
[0237] In one embodiment, referring to FIGS. 11A and 12A, the middle guide (1240) may include a second-first planar portion (1241) and a second-second planar portion (1242) corresponding to a first-first planar portion (1233) and a first-second planar portion (1234). In one embodiment, the second-second planar portion (1242) may be positioned in the +Z direction of FIG. 12A with respect to the second-first planar portion (1241). In one embodiment, the second-first planar portion (1241) and the second-second planar portion (1242) may be substantially parallel to the support surface (1225) of the camera housing (1220). In one embodiment, the second-first planar portion (1241) may face the first-first planar portion (1233). The 2-2 plane portion (1242) can face the 1-2 plane portion (1234).
[0238] According to one embodiment, as illustrated in FIG. 12A, a first OIS ball (b1) may be placed between a first guide groove (1310) formed in a carrier (1230) and a second guide groove (1320) formed in a middle guide (1240). In one embodiment, when the carrier (1230) rotates about an inclined axis (A2), rotation may be guided by the first OIS ball (b1).
[0239] In one embodiment, referring to FIG. 12A, a first guide groove (1310) may be formed in a first planar portion (e.g., a first-first planar portion (1233) and a first-second planar portion (1234)) of a carrier (1230). The first guide groove (1310) may include a first-first guide groove (1311) and a first-second guide groove (1312). In one embodiment, the first-first guide groove (1311) may be formed in the first-first planar portion (1233) of the carrier (1230). The first-second guide groove (1312) may be formed in the first-second planar portion (1234) of the carrier (1230).
[0240] In one embodiment, referring to FIG. 12A, a second guide groove (1320) corresponding to the first guide groove (1310) may be formed in the second planar portion (e.g., the 2-1 planar portion (1241) and the 2-2 planar portion (1242)) of the middle guide (1240). The second guide groove (1320) may include a 2-1 guide groove (1321) corresponding to the 1-1 guide groove (1311) and formed in the 2-1 planar portion (1241), and a 2-2 guide groove (1322) corresponding to the 1-2 guide groove (1312) and formed in the 2-2 planar portion (1242).
[0241] In one embodiment, referring to FIG. 12A, the first guide groove (1310) and the second guide groove (1320) may be positioned in a direction perpendicular to the emission surface (S2) of the reflective member (R) (e.g., the + X direction in FIG. 12A). In one embodiment, referring to FIG. 12A, the first guide groove (1310) and the second guide groove (1320) may be positioned on the inclined axis (A2).
[0242] According to one embodiment, as illustrated in FIG. 12A, the carrier (1230) can rotate about the inclined axis (A2) with respect to the middle guide (1240) with the first OIS ball (b1) as a support point. In one embodiment, the carrier (1230) and the middle guide (1240) can be in contact at least two points through the first OIS ball (b1). In one embodiment, the carrier (1230) can rotate about the middle guide (1240) along an imaginary circle perpendicular to the inclined axis (A2) through the first OIS ball (b1). In one embodiment, the carrier (1230) can be coupled to the middle guide (1240) so that the movement in a direction other than the rotation about the inclined axis (A2) is restricted. For example, the movement of the carrier (1230) in a direction other than the rotation about the inclined axis (A2) can be restricted through a portion of the middle guide (1240).
[0243] In one embodiment, referring to FIG. 12A, the first-first guide groove (1311) and the second-first guide groove (1321) may be formed in a shape that can be in contact with the first OIS ball (b1) on at least two sides, respectively. For example, the first-first guide groove (1311) and the second-first guide groove (1321) may be formed as 'V'-shaped grooves. Since the first-first guide groove (1311) and the second-first guide groove (1321) are formed as 'V'-shaped grooves, the first OIS ball (b1) disposed between the first-first guide groove (1311) and the second-first guide groove (1321) (e.g., the first rail) may be in contact with the inner surface of the first-first guide groove (1311) and the inner surface of the second-first guide groove (1321). Accordingly, the first OIS ball (b1) placed on the first rail can substantially guide the rotation of the carrier (1230) in the direction of the inclined axis (A2).
[0244] In one embodiment, referring to FIG. 12A, at least one of the first-second guide groove (1312) and the second-second guide groove (1322) may be formed to a size that allows the first OIS ball (b1) to move. The guide groove formed to a size that allows the first OIS ball (b1) to move may be a 'U'-shaped groove. In one embodiment, the first OIS ball (b1) may be capable of up-down and left-right movement in addition to rolling movement inside the 'U'-shaped guide groove.
[0245] In one embodiment, the first-second guide groove (1312) may be formed as a 'V'-shaped groove, and the second-second guide groove (1322) may be formed as a 'U'-shaped groove. Conversely, the first-second guide groove (1312) may be formed as a 'U'-shaped groove, and the second-second guide groove (1322) may be formed as a 'V'-shaped groove. In one embodiment, the first-second guide groove (1312) and the second-second guide groove (1322) may be formed as 'U'-shaped grooves.
[0246] In one embodiment, the gap between the first-first guide groove (1311) and the first-second guide groove (1312) formed in the carrier (1230) may be different from each other due to reasons such as the gap between the second-first guide groove (1321) and the second-second guide groove (1322) formed in the middle guide (1240) and the tolerance in the manufacturing process. In one embodiment, the first OIS ball (b1) positioned inside the 'U'-shaped groove is movable inside the 'U'-shaped groove, and thus the difference in the gap between the first-first guide groove (1311) and the first-second guide groove (1312) and the gap between the second-first guide groove (1321) and the second-second guide groove (1322) can be compensated for.
[0247] According to one embodiment, as illustrated in FIG. 12b, one of the first attraction magnet (1411) and the second attraction magnet (1412) may be disposed on one surface of the carrier (1230) facing the middle guide (1240). In one embodiment, the other of the first attraction magnet (1411) and the second attraction magnet (1412) may be disposed on one surface of the middle guide (1240) facing the carrier (1230). In one embodiment, the first attracting magnet (1411) and the second attracting magnet (1412) may be magnets or metal plates having magnetism (e.g., a yoke). In one embodiment, an attractive force may act between the first attracting magnet (1411) and the second attracting magnet (1412). The carrier (1230) and the middle guide (1240) may be attracted to each other through the attractive force acting between the first attracting magnet (1411) and the second attracting magnet (1412). Accordingly, the carrier (1230) and the middle guide (1240) may be maintained in contact with the first OIS ball (b1) disposed between the first guide groove (1310) and the second guide groove (1320).
[0248] According to one embodiment, a third attraction magnet (613) may be disposed in the second portion (1222) of the camera housing (1220), as illustrated in FIGS. 11A and 12A. In one embodiment, the third magnetic attractor (613) may be a magnet or a metal plate having magnetism (e.g., a yoke). In one embodiment, the third magnetic attractor (613) may be disposed on a flexible printed circuit board (560) and disposed on the outside of the base portion (1250). In one embodiment, the third magnetic attractor (613) and the second OIS coil (522) may face each other with respect to the flexible printed circuit board (560). For example, the third magnetic attractor (613) may be disposed on one surface of the flexible printed circuit board (560) and disposed on the outside of the base portion (1250), and the second OIS coil (522) may be disposed on the other surface, which is the opposite surface of the one surface of the flexible printed circuit board (560), and disposed on the inside of the base portion (1250). In summary, the second OIS coil (522) may be disposed on the second OIS It can be placed between the magnetic body (521) and the third attraction magnetic body (613).
[0249] In one embodiment, an attractive force may be applied between the third attracting magnet (613) and the second OIS magnet (521) disposed in the middle guide (1240). In one embodiment, the middle guide (1240) and the base portion (1250) may be pulled toward each other through the attractive force applied between the second OIS magnet (521) and the third attracting magnet (613). Accordingly, the middle guide (1240) and the base portion (1250) may be maintained in contact with the second OIS ball (b2) disposed between the third guide groove (1330) and the fourth guide groove (1340).
[0250] According to one embodiment, at least one lens module may be included that faces at least one of an incident surface (S1) of the reflective member (R) and an exit surface (S2) of the reflective member (R). In one embodiment, the first lens module may be arranged to face the incident surface (S1) of the reflective member (R). In one embodiment, the second lens module may be arranged to face the exit surface (S2) of the reflective member (R). In one embodiment, at least a portion of the first lens module and the second lens module may be coupled to a carrier (1230) and may rotate with respect to the camera housing (1220) based on driving of the first OIS actuator (511, 512), the second OIS actuator (521, 522), and / or the third OIS actuator (531, 532) together with the carrier (1230). In one embodiment, the camera module (1200) may omit at least one of the first lens module and the second lens module.
[0251] A camera module may be capable of achieving high magnification by utilizing the refraction of light. For example, a camera module (e.g., a camera module (300) of FIG. 3A, a camera module (700) of FIG. 7A, a camera module (900) of FIG. 8A, a camera module (1200) of FIG. 11A) may include a reflective member (e.g., a reflective member (R)) such as a prism or a mirror. Light incident on the reflective member (R) may have its path bent through reflection or refraction and transmitted to an image sensor (e.g., an image sensor (230) of FIG. 2).
[0252] A camera module using a reflective member (R) may include a base portion (e.g., base portion (350) of FIG. 3A, base portion (750) of FIG. 7A, base portion (950) of FIG. 8A, base portion (1250) of FIG. 11A), a middle guide portion (e.g., middle guide (340) of FIG. 3A, middle guide (740) of FIG. 7A, middle guide (940) of FIG. 8A, middle guide (1240) of FIG. 11A), a reflective actuator, a lens driving portion (e.g., lens driving portion (310) of FIG. 3A, lens driving portion (910) of FIG. 8A) and an image sensor (230) inside a camera housing.
[0253] The reflective actuator may include a reflective member (R) and a carrier (e.g., a carrier (330) of FIG. 3A, a carrier (730) of FIG. 7A, a carrier (930) of FIG. 8A, a carrier (1230) of FIG. 11A). The reflective member (R) may be tilted with respect to the image sensor (230) to compensate for shaking of an image formed on the image sensor (230) due to hand shake. For example, the carrier (330) on which the reflective member (R) is disposed may be rotated about a roll axis (e.g., a Z axis of FIG. 3B) and a pitch axis (e.g., a Y axis of FIG. 3B) with respect to the image sensor (230) via an actuator (e.g., a coil and a magnet). The middle guide (340, 740, 940, 1240) can rotate about the other axis of the roll axis and the pitch axis with respect to the image sensor (230) via an actuator. The carrier (330, 730, 930, 1230) can be rotated in the same direction as the rotational direction of the middle guide (340, 740, 940, 1240) by being linked with the middle guide (340, 740, 940, 1240).
[0254] Meanwhile, when the reflective actuator rotates about the roll axis, a gap may be required between the carrier (330, 730, 930, 1230) and the middle guide (340, 740, 940, 1240) for rotation of the carrier (330, 730, 930, 1230) about the roll axis. The camera module (300, 700, 900, 1200) may have a limit in reducing the size of the gap between the carrier (330, 730, 930, 1230) and the middle guide (340, 740, 940, 1240). In addition, when the reflective actuator rotates about the roll axis to correct image shaking, a smile effect, which is an image rotation phenomenon, may occur.
[0255] According to one embodiment of the present disclosure, a camera module (300, 700) (e.g., the camera module (300) of FIG. 3A, the camera module (700) of FIG. 6A) may include a camera housing (320, 720) including a first portion (321, 721) and a second portion (322, 722) perpendicular to the first portion. In addition, the camera module may include a reflective member (R) including an incident surface (S1) and an exit surface (S2) perpendicular to the incident surface. In addition, the camera module may include a carrier (330, 730) including a mounting portion on which the reflective member is disposed and a first guide groove (410, 810) facing the reflective member and facing the second portion. In addition, the camera module may include a middle guide (340, 740) that is at least partially disposed between the carrier and the second part of the camera housing and includes a second guide groove (420, 820) corresponding to the first guide groove and a third guide groove (430, 830) facing the second part. In addition, the camera module may include a base portion (350, 750) that is disposed in the second part and includes a fourth guide groove (440, 840) corresponding to the third guide groove. In addition, the camera module may include a first OIS ball (b1) positioned between the first guide groove and the second guide groove. In addition, the camera module may include a second OIS ball (b2) positioned between the third guide groove and the fourth guide groove. In addition, the camera module may include a first OIS magnetic body (511) that is disposed in the carrier and faces the first part. Additionally, the camera module may include a second OIS magnet (521) disposed in the middle guide and facing the second portion. Additionally, the camera module may include a first OIS coil (512) disposed in the first portion and facing the first OIS magnet.Additionally, the camera module may include a second OIS coil (522) disposed in the second portion and facing the second OIS magnetic body.
[0256] In addition, the carrier can rotate around a first axis (R1) perpendicular to the emission surface through an electromagnetic force acting between the first OIS magnetic body and the first OIS coil. In addition, the carrier can rotate around a second axis (R2) perpendicular to the first axis and an axis perpendicular to the incidence surface of the reflective member through an electromagnetic force acting between the second OIS magnetic body and the second OIS coil.
[0257] In addition, the first axis and the second axis may pass through the intersection of an incident optical axis that is perpendicular to the incident surface and passes through the center of the incident surface and an exit optical axis that is perpendicular to the exit surface and passes through the center of the exit surface.
[0258] In addition, the first guide groove may include a first-first guide groove (411, 811) and a first-second guide groove (412, 812) facing the first-first guide groove. In addition, the second guide groove may include a second-first guide groove (421, 821) corresponding to the first-first guide groove and a second-second guide groove (422, 822) corresponding to the first-second guide groove. In addition, the first guide groove and the second guide groove may be parts of an imaginary circle perpendicular to a first axis (R1) perpendicular to the exit surface.
[0259] Additionally, the first guide groove and the second guide groove can be formed with the same curvature.
[0260] Additionally, the carrier and middle guide can be supported at at least three points each via the first OIS ball.
[0261] Additionally, at least two first OIS balls may be arranged between the first-first guide groove and the second-first guide groove. Additionally, one first OIS ball may be arranged between the first-second guide groove and the second-second guide groove.
[0262] In addition, the first OIS magnetic body may include a first-1 OIS magnetic body (511a) and a first-2 OIS magnetic body (511b) respectively arranged in the thickness direction of the camera module.
[0263] Additionally, the first-1 OIS magnet and the first-2 OIS magnet may have different poles facing the camera housing.
[0264] Additionally, the camera module may include a first attracting magnet (611) disposed on one of the carrier and the middle guide. Additionally, the camera module may include a second attracting magnet (612) disposed on the other of the carrier and the middle guide to face the first attracting magnet.
[0265] Additionally, the camera module may further include a third attraction magnet (613) disposed in the second portion of the camera housing and facing the second OIS magnet.
[0266] Additionally, the second OIS coil may be placed between the second OIS magnetic body and the third attracting magnetic body.
[0267] Additionally, the camera module may further include a lens driving unit (310) including a lens (3101) through which light passing through the emission surface of the reflective member is transmitted.
[0268] Additionally, the camera module may further include an AF magnet (541, 551) disposed in the lens driving unit.
[0269] In addition, the camera module may further include an AF coil (542, 552) facing the AF magnetic body and having an electromagnetic force applied to the AF magnetic body so that the lens driving unit moves in the optical axis direction of the lens of the lens driving unit.
[0270] Additionally, the camera module may further include an AF ball (b3) disposed between the camera housing and the lens driving unit.
[0271] Additionally, the camera module may further include at least one lens module disposed on the carrier and facing at least one of an incident surface (S1) of the reflective member and an exit surface (S2) of the reflective member.
[0272] According to one embodiment of the present disclosure, a camera module (900, 1200) (e.g., the camera module (900) of FIG. 8A, the camera module (1200) of FIG. 11A) may further include a camera housing (920, 1200) including a first portion (921, 1221) and a second portion (922, 1222) perpendicular to the first portion. In addition, the camera module may include a reflective member (R) including an incident surface (S1), an exit surface (S2) perpendicular to the incident surface, and a reflective surface (S3) connecting the incident surface and the exit surface and inclined at a predetermined angle with a support surface (1225) of the camera housing. In addition, the camera module may include a carrier (930, 1230) including a mounting portion on which the reflective member is placed. In addition, the camera module may include a middle guide (940, 1240) disposed in the camera housing and at least a portion of which faces the mounting portion. In addition, the camera module may include a first OIS ball (b1) disposed between the carrier and the middle guide. In addition, the camera module may include a first OIS magnetic body (511) disposed in the carrier and facing the first portion. In addition, the camera module may include a first OIS coil (512) disposed in the first portion and facing the first OIS magnetic body. In addition, the carrier may rotate about an inclined axis (A1, A2) that is parallel to one side of the reflective surface and inclined at a predetermined angle with respect to the support surface of the camera housing through an electromagnetic force acting between the first OIS magnetic body and the first OIS coil.
[0273] In addition, the camera module may further include a base portion (950, 1250) disposed in the second portion of the camera housing. In addition, the camera module may further include a second OIS ball (b2) disposed between the middle guide and the base portion. In addition, the camera module may further include a second OIS magnetic body (521) disposed in the middle guide and facing the second portion. In addition, the camera module may further include a second OIS coil (522) disposed in the second portion and facing the second OIS magnetic body.
[0274] In addition, the carrier can rotate about a second axis (R2) perpendicular to an axis perpendicular to an incident surface of the reflective member and an axis perpendicular to an emission surface of the reflective member through an electromagnetic force acting between the second OIS magnetic body and the second OIS coil.
[0275] Additionally, the inclined axis and the reflective surface of the reflective member may be inclined at an angle of 45 degrees with respect to the support surface of the camera housing.
[0276] In addition, the inclined axis and the second axis may pass through the intersection of an incident optical axis that is perpendicular to the incident surface and passes through the center of the incident surface and an exit optical axis that is perpendicular to the exit surface and passes through the center of the exit surface.
[0277] In addition, the carrier may include a mounting portion (931, 1231) on which the reflective member is disposed and which forms a predetermined angle with the support surface of the camera housing so as to be parallel to the reflective surface, a guide portion (933, 934) extending from the mounting portion in a direction opposite to the reflective surface, and a first guide groove (1010) formed in the guide portion and in which the first OIS ball is disposed. In addition, the middle guide may include a receiving portion (941, 942) in which at least a portion of the guide portion is disposed, and a second guide groove (1020) formed in the receiving portion and corresponding to the first guide groove and in which the first OIS ball is disposed.
[0278] In addition, the camera module may include a first magnetic attraction body (1111) arranged on one of the surfaces of the mounting portion where the guide portion is formed and one surface of the middle guide facing the mounting portion. In addition, the camera module may include a second magnetic attraction body (1112) arranged on the other of the surfaces of the mounting portion where the guide portion is formed and one surface of the middle guide facing the mounting portion.
[0279] Additionally, the camera module may include a first attracting magnet (1411) disposed on one of the carrier and the middle guide. Additionally, the camera module may include a second attracting magnet (1412) disposed on the other of the carrier and the middle guide to face the first attracting magnet.
[0280] Additionally, the camera module may further include a third attracting magnet (613) disposed in the second portion of the camera housing and facing the second OIS magnet. Additionally, the second OIS coil may be disposed between the second OIS magnet and the third attracting magnet.
[0281] According to various embodiments disclosed in the present document, a carrier (340, 740, 940, 1240) having a reflective member (R) disposed thereon can be rotated about the yaw axis (e.g., R1 of FIG. 3B or X-axis of FIG. 3B) and the pitch axis (e.g., R2 of FIG. 3B or Y-axis of FIG. 3B) with respect to an image sensor (230) via an actuator (e.g., a coil and a magnet). When the reflective actuator rotates about the yaw axis, a gap between the middle guide (340, 740, 940, 1240) and the carrier (330, 730, 930, 1230) can be reduced compared to when the reflective actuator rotates about the roll axis. Accordingly, the size of the camera module (300, 700, 900, 1200) can be reduced as a result of reducing the gap between the components arranged inside the camera housing (e.g., the camera housing (320) of FIG. 3a, the camera housing (720) of FIG. 7a, the camera housing (920) of FIG. 8a, the camera housing (1220) of FIG. 11a).
[0282] Additionally, when the reflective actuator rotates around the yaw axis, the image rotation phenomenon that occurs when correcting image shake can be reduced compared to when the reflective actuator rotates around the roll axis (e.g., the Z axis in Fig. 3b).
[0283] The effects that can be obtained from the present disclosure are not limited to the effects mentioned above, and other effects that are not mentioned can be clearly understood by a person having ordinary skill in the art to which the present disclosure belongs from the description below.
[0284] According to various embodiments disclosed in this document, the electronic device (101) has a bar type or a plate type appearance, but is not limited thereto. For example, the illustrated electronic device (101) may be a part of a foldable electronic device, a slidable electronic device, a stretchable electronic device, and / or a rollable electronic device. The terms “foldable electronic device,” “slidable electronic device,” “stretchable electronic device,” and / or “rollable electronic device” may refer to an electronic device in which a display (e.g., the display module (160) of FIG. 1) is capable of bending deformation, such that at least a portion thereof is folded, wound or rolled, at least a portion thereof is expanded, and / or the display module (160) of FIG. 1) is housed inside a housing. Foldable electronic devices, slideable electronic devices, stretchable electronic devices and / or rollable electronic devices can be used to expand the screen display area by unfolding the display or exposing a wider area of the display to the outside, depending on the user's needs.
[0285] The electronic device (101) according to various embodiments disclosed in this document may be a device of various forms. The electronic device (101) may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance device. The electronic device (101) according to the embodiments of this document is not limited to the aforementioned devices.
[0286] The various embodiments of this document and the terminology used therein 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 component (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.
[0287] The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. 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).
[0288] Various 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.
[0289] According to one embodiment, the method according to various embodiments disclosed in this document may be provided as a computer program product. The computer program product may be traded between sellers and buyers as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., compact disc read-only memory (CD-ROM)) or may be provided through an application store (e.g., Play Store). TM ) or directly between two user devices (e.g., smart phones), online distribution (e.g., downloading or uploading). In the case of online distribution, at least a portion of the computer program product may be at least temporarily stored or temporarily created in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.
[0290] According to various 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 arranged in other components. According to various 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 various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.
[0291] It will be understood that this document contemplates and encompasses embodiments based on any combination of two or more of the disclosed embodiments, as well as embodiments comprising any combination of the features disclosed herein. That is, the absence of an explicit indication that two features or two embodiments can be combined does not imply that such a combination is not envisioned, but rather that such a combination is intended to be included herein.
Claims
1. In the camera module (300, 700), A camera housing (320, 720) comprising a first portion (321, 721) and a second portion (322, 722) perpendicular to the first portion; A reflective member (R) including an incident surface (S1) and an exit surface (S2) perpendicular to the incident surface; A carrier (330, 730) including a mounting portion on which the reflective member is placed and a first guide groove (410, 810) facing the reflective member and facing the second portion; A middle guide (340, 740) including at least a second guide groove (420, 820) disposed between the carrier and the second part of the camera housing and corresponding to the first guide groove and a third guide groove (430, 830) facing the second part; A base portion (350, 750) disposed in the second portion and including a fourth guide groove (440, 840) corresponding to the third guide groove; A first OIS ball (b1) positioned between the first guide groove and the second guide groove; A second OIS ball (b2) located between the third guide groove and the fourth guide groove; A first OIS magnet (511) disposed on the carrier and facing the first part; A second OIS magnet (521) disposed on the above middle guide and facing the second part; A first OIS coil (512) arranged in the first section and facing the first OIS magnetic body; and A camera module including a second OIS coil (522) disposed in the second section and facing the second OIS magnet.
2. In paragraph 1, The above carrier, Rotates around the first axis (R1) perpendicular to the emission surface through the electromagnetic force acting between the first OIS magnet and the first OIS coil, Rotates around the second axis (R2) perpendicular to the first axis and the axis perpendicular to the incident surface of the reflective member through the electromagnetic force acting between the second OIS magnetic body and the second OIS coil, The above first axis and the above second axis, A camera module passing through the intersection of an incident optical axis that is perpendicular to the incident surface and passes through the center of the incident surface and an exit optical axis that is perpendicular to the exit surface and passes through the center of the exit surface.
3. In paragraph 1, The above first guide home, It includes a first-first guide groove (411, 811) and a first-second guide groove (412, 812) facing the first-first guide groove, The above second guide home, It includes a 2-1 guide groove (421, 821) corresponding to the 1-1 guide groove and a 2-2 guide groove (422, 822) corresponding to the 1-2 guide groove, The above first guide home and the above second guide home, A camera module which is a part of an imaginary circle perpendicular to the first axis (R1) perpendicular to the above-mentioned emission surface.
4. In paragraph 3, A camera module wherein the first guide groove and the second guide groove are formed with the same curvature.
5. In paragraph 1, The above carrier and middle guide, A camera module supported at at least three points via the first OIS ball.
6. In paragraph 3, At least two of the first OIS balls are arranged between the first-first guide groove and the second-first guide groove. A camera module in which one first OIS ball is placed between the first-second guide groove and the second-second guide groove.
7. In paragraph 1, The above first OIS magnet is, It includes the first-1 OIS magnetic body (511a) and the first-2 OIS magnetic body (511b) respectively arranged in the thickness direction of the camera module, The above 1-1 OIS magnet and the above 1-2 OIS magnet, A camera module with different poles facing the camera housing.
8. In paragraph 1, A first attraction magnet (611) arranged on one of the carrier and the middle guide; and A camera module further comprising a second attracting magnet (612) positioned so as to face the first attracting magnet on the remaining one of the carrier and the middle guide.
9. In paragraph 1, Further comprising a third attraction magnet (613) disposed in the second part of the camera housing and facing the second OIS magnet; The above second OIS coil, A camera module disposed between the second OIS magnetic body and the third attractive magnetic body.
10. In paragraph 1, A lens driving unit (310) including a lens (3101) through which light passing through the emission surface of the above reflective member is transmitted; AF magnet (541, 551) arranged in the above lens driving unit; An AF coil (542, 552) facing the AF magnetic body and having an electromagnetic force applied to the AF magnetic body so that the lens driving unit moves in the direction of the optical axis of the lens of the lens driving unit; and A camera module further comprising an AF ball (b3) positioned between the camera housing and the lens driving unit; 11. In paragraph 10, A camera module further comprising: at least one lens module disposed on the carrier and facing at least one of an incident surface (S1) of the reflective member and an exit surface (S2) of the reflective member.
12. In the camera module (900, 1200), A camera housing (920, 1200) comprising a first portion (921, 1221) and a second portion (922, 1222) perpendicular to the first portion; A reflection member (R) including an incident surface (S1), an exit surface (S2) perpendicular to the incident surface, and a reflection surface (S3) connecting the incident surface and the exit surface and inclined at a predetermined angle with respect to the support surface (1225) of the camera housing; A carrier (930, 1230) including a mounting portion on which the above reflective member is placed; A middle guide (940, 1240) disposed in the camera housing and having at least a portion facing the mounting portion; A first OIS ball (b1) positioned between the carrier and the middle guide; A first OIS magnet (511) disposed on the carrier and facing the first part; and A first OIS coil (512) disposed in the first section and facing the first OIS magnetic body; The above carrier, A camera module that rotates about an inclined axis (A1, A2) that is parallel to one side of the reflective surface and inclined at a predetermined angle with respect to the support surface of the camera housing through an electromagnetic force acting between the first OIS magnet and the first OIS coil.
13. In paragraph 12, A base portion (950, 1250) disposed in the second portion of the camera housing; A second OIS ball (b2) positioned between the middle guide and the base portion; A second OIS magnet (521) positioned on the above middle guide and facing the second part; and Further comprising a second OIS coil (522) disposed in the second section and facing the second OIS magnetic body; The above carrier, A camera module that rotates around a second axis (R2) that is perpendicular to an axis perpendicular to an incident surface of the reflective member and an axis perpendicular to an emission surface of the reflective member through an electromagnetic force acting between the second OIS magnetic body and the second OIS coil.
14. In paragraph 12, The above-mentioned inclined axis and the above-mentioned reflective surface of the reflective member are, A camera module having a 45 degree incline with respect to the support surface of the camera housing.
15. In paragraph 12, The above carrier, The above reflective member is arranged and includes a mounting portion (931, 1231) that forms a predetermined angle with the support surface of the camera housing so as to be parallel to the reflective surface, a guide portion (933, 934) that extends from the mounting portion in a direction opposite to the reflective surface, and a first guide groove (1010) formed in the guide portion and in which the first OIS ball is arranged. The above middle guide is, It includes a receiving portion (941, 942) in which at least a part of the above guide portion is received, and a second guide groove (1020) formed in the receiving portion and corresponding to the first guide groove and in which the first OIS ball is placed. A first attraction magnet (1111) arranged on one of the surfaces of the mounting portion on which the guide portion is formed and one surface of the middle guide facing the mounting portion; and A camera module further comprising a second attraction magnet (1112) disposed on one side of the mounting portion on which the guide portion is formed and the other side of the middle guide facing the mounting portion.
Citation Information
Patent Citations
Computer device of robust surface electromyography feature selection based on recursive feature elimination for gait recognition, and method of the same
KR1020230070636A
Stockless-based shopping system
KR1020250077754A
KR20210017272A
KR20210080294A
KR20220049952A