Camera assembly and electronic equipment

Abstract

According to the embodiment of the invention, the camera assembly comprises a fixed plate fixed on a housing; the movable substrate is arranged above the fixed plate and is configured to move along a direction vertical to an optical axis of a lens relative to the fixed plate; an image sensor disposed on the movable substrate and configured to sense the light output from the lens; first to third actuators; and first to third position detection elements, in which the image sensor is located between the first actuator and the second actuator in a direction of the first axis, in which the third actuator is located between the image sensor and the second actuator in a direction of the first axis, and in which the first to third position detection elements are located between the first and second actuators in a direction of the second axis. A first distance between the first position detection element and the optical axis is different from a second distance between the second position detection element and the optical axis.

Description

Technical Field

[0001] This disclosure relates to a camera assembly and an electronic device. Background Technology

[0002] Electronic devices such as smartphones and tablets are widely used in our daily lives. Many electronic devices today are equipped with camera components for capturing images. Some electronic devices are portable, making them easy to carry. Therefore, users of electronic devices can easily take photos of objects anytime, anywhere using the camera components of their devices.

[0003] Traditionally, when a camera is mounted on an electronic device such as a smartphone, multiple actuators and position detection elements are positioned near one side of the device's image sensor. Therefore, there is a misalignment between the rotation centers of these multiple rotary actuators and the optical axis center of the image sensor.

[0004] Furthermore, position detection errors can occur in the various position detection elements. Consequently, the thrust of the drive actuator will be lost.

[0005] In addition, the deviation amount varies each time the position is detected, which will cause position detection errors, so error correction is required.

[0006] In addition, because the center of rotation is different from the center of the optical axis, the image sensor swings more than when it rotates around the center of the optical axis, thus increasing the size of the electronic device. Summary of the Invention

[0007] This disclosure aims to solve at least one of the aforementioned technical problems. Therefore, this disclosure provides a camera assembly and an electronic device.

[0008] According to this disclosure, a camera assembly has an optical image stabilization (OIS) mechanism, the camera assembly comprising: A fixing plate is fixed to a housing of the camera assembly; A movable base plate is disposed above the fixed plate and configured to be movable relative to the fixed plate in a direction perpendicular to an optical axis of a lens; An image sensor is disposed on the movable substrate and configured to sense the light output from the lens; A first actuator is disposed at a position along a first axis orthogonal to the optical axis of the lens, and configured to apply the driving force to the movable substrate along a second axis orthogonal to the optical axis and the first axis, so as to move the movable substrate on which the image sensor is disposed relative to the fixed plate. A second actuator is disposed at a position along the first axis and configured to apply the driving force to the movable substrate in the direction of the second axis to move the movable substrate relative to the fixed plate; A third actuator is disposed at a position along the first axis and configured to apply the driving force to the movable substrate in the direction of the first axis so as to move the movable substrate relative to the fixed plate; A first position detection element is disposed adjacent to the first actuator along the first axis and configured to detect a position in the direction of the second axis; A second position detection element is disposed adjacent to the second actuator along the first axis and configured to detect a position in the direction of the second axis; and A third position detection element is disposed adjacent to the third actuator along the first axis and configured to detect a position in the direction of the first axis. Along the direction of the first axis, the image sensor is located between the first actuator and the second actuator. Wherein, along the direction of the first axis, the third actuator is located between the image sensor and the second actuator, and Wherein, the first distance between the first position detection element and the optical axis is different from the second distance between the second position detection element and the optical axis. Attached Figure Description

[0009] These and / or other aspects and advantages of the embodiments disclosed herein will become more apparent and readily understood from the following description with reference to the accompanying drawings, in which: Figure 1 This is a plan view of the first side of an electronic device according to an embodiment of the present disclosure; Figure 2 This is a plan view of the second side of an electronic device according to an embodiment of the present disclosure; Figure 3 This is a block diagram of an electronic device according to this embodiment; Figure 4 A cross-sectional view showing a schematic configuration of a camera assembly of an electronic device according to an embodiment of the present disclosure; Figure 5 for Figure 4 A top view showing the configuration of the image sensors included in the camera assembly; Figure 6A To illustrate an exemplary cross-sectional view along line AA, the focus is on including Figure 5 The image sensor configuration of the camera assembly shown; Figure 6B To illustrate an exemplary cross-sectional view along the BB line, the focus is on including Figure 5 The image sensor configuration of the camera assembly shown; Figure 7 An example diagram illustrating the relationship between the output of the position detection element and the relative position between the position detection element and the actuator magnet; Figure 8 for Figure 5 A top view of the image sensor, first to third position detection elements, and first to third actuators of the camera assembly shown; Figure 9 show Figure 8 A top view of an example of the image sensor of the camera assembly shown moving along the first axis direction; Figure 10 show Figure 8 A top view of an example of the state in which the image sensor of the camera assembly is moved along the second axis; Figure 11 show Figure 8 A top view of an example of the state in which the image sensor of the camera assembly is rolling around the optical axis. Detailed Implementation

[0010] Embodiments of this disclosure will be described in detail, and examples of embodiments are illustrated in the accompanying drawings. Throughout the description, the same or similar elements, as well as elements having the same or similar functions, are denoted by the same reference numerals. The embodiments described herein with reference to the accompanying drawings are illustrative and intended to illustrate this disclosure, but should not be construed as limiting it.

[0011] Before explaining the features of the camera assembly and electronic device according to the embodiments of this disclosure, a schematic configuration of the entire camera assembly and the entire electronic device will be explained for better understanding.

[0012] Figure 1 This is a plan view of the first side of the electronic device 10 according to an embodiment of the present disclosure. Figure 2 This is a plan view of the second side of an electronic device 10 according to an embodiment of the present disclosure. The first side may be referred to as the back side of the electronic device 10, and the second side may be referred to as the front side of the electronic device 10.

[0013] like Figure 1 and Figure 2 As shown, the electronic device 10 may include a display 20, a camera assembly 30 including a pop-up lens unit 60, and a battery cover 11 located on a first side of the electronic device 10.

[0014] For example, electronic device 10 could be a mobile phone, a tablet computer, a human digital assistant, etc.

[0015] The camera assembly 30 has an image sensor that converts light passing through a color filter into an electrical signal. The signal value of the electrical signal depends on the amount of light passing through the color filter. The electronic device 10 may have one or more camera assemblies.

[0016] In addition, the camera assembly 30 is housed inside the casing of the electronic device 10.

[0017] Figure 3 This is a block diagram of an electronic device 10 according to this embodiment. Figure 3 As shown, in addition to the display 20 and the camera assembly 30, the electronic device 10 may include a main processor 40, an image signal processor 42, a memory 44, a power supply circuit 46, and a communication circuit 48. The display 20, camera assembly 30, main processor 40, image signal processor 42, memory 44, power supply circuit 46, and communication circuit 48 are interconnected via a bus 50.

[0018] The main processor 40 executes one or more program instructions stored in the memory 44. The main processor 40 implements various applications and data processing of the electronic device 10 by executing program instructions. The main processor 40 can be one or more computer processors. The main processor 40 is not limited to one CPU core, but can have multiple CPU cores. The main processor 40 can be the main CPU of the electronic device 10, an image processing unit (IPU), or a DSP equipped in the camera assembly 30.

[0019] The image signal processor 42 controls the camera assembly 30 and processes various image data captured by the camera assembly 30 to generate target image data. For example, the image signal processor 42 can apply de-mosaic processing, noise reduction processing, automatic exposure processing, automatic focus processing, automatic white balance processing, high dynamic range processing, etc. to the image data captured by the camera assembly 30.

[0020] In this embodiment, the main processor 40 and the image signal processor 42 cooperate to generate target image data of the object captured by the camera assembly 30. That is, the main processor 40 and the image signal processor 42 are configured to capture images of the object through the camera assembly 30 and apply various image processing techniques to the captured image data.

[0021] Memory 44 stores program instructions executed by the main processor 40, as well as various data. For example, data of captured images is also stored in memory 44.

[0022] Memory 44 may include a high-speed RAM and / or a non-volatile memory, such as flash memory and disk storage. That is, memory 44 may include a non-transitory computer-readable medium that stores program instructions.

[0023] The power supply circuit 46 may have a battery, such as a lithium-ion rechargeable battery, and a battery management unit (BMU) for managing the battery.

[0024] Communication circuit 48 is configured to receive and transmit data to communicate wirelessly with base stations of telecommunications network systems, the Internet, or other devices. The wireless communication can employ any communication standard or protocol, including but not limited to GSM (Global System for Mobile Communications), CDMA (Code Division Multiple Access), LTE (Long Term Evolution), LTE-Advanced, and 5G. Communication circuit 48 may include an antenna and an RF (radio frequency) circuit.

[0025] Next, we will refer to Figures 4 to 11 This describes a configuration example of the camera component 30 of the electronic device 10 having the above configuration.

[0026] Figure 4 A cross-sectional view showing a schematic configuration of a camera assembly of an electronic device according to an embodiment of the present disclosure. Figure 5 for Figure 4 The top view shows the configuration of the image sensor included in the camera assembly. Figure 6A To illustrate an exemplary cross-sectional view along line AA, the focus is on including Figure 5 The image sensor configuration of the camera assembly is shown. Figure 6B To illustrate an exemplary cross-sectional view along the BB line, the focus is on including Figure 5 The image sensor configuration of the camera assembly is shown.

[0027] like Figure 4 , Figure 5 , Figure 6A as well as Figure 6B As shown, the camera assembly 30 with an optical imagestabilization (OIS) mechanism includes a lens barrel 1, a movable base plate 4, a fixed plate 5, an image sensor 6, a sliding mechanism 8, a first brake 71, a second brake 72, a third brake 73, a first position detection element 71b, a second position detection element 72b, and a third position detection element 73b.

[0028] It is important to note that, in Figure 4 The configuration for autofocus on the camera assembly 30 has been omitted. Furthermore, in... Figure 5 , Figure 6A as well as Figure 6B In the middle, the following was omitted. Figure 4 The camera assembly 30 shown includes the structure of the lens barrel 1.

[0029] like Figure 4 As shown, the lens barrel 1 is located above the image sensor 6. The lens barrel 1 includes a plurality of lenses 1a having an optical axis ZL.

[0030] The mounting plate 5 is fixed to the housing of the camera assembly 30 (that is, the camera assembly 30 is arranged on...). Figure 1 (In the housing provided in the electronic device 10 shown).

[0031] The movable base plate 4 is disposed above the fixed plate 5 and is configured to be movable relative to the fixed plate 5 in a direction perpendicular to the optical axis ZL of the lens 1a.

[0032] A sliding mechanism 8 is disposed between the fixed plate 5 and the movable base plate 4. The sliding mechanism 8 is configured such that the movable base plate 4 can slide on the fixed plate 5 in a direction perpendicular to the optical axis ZL.

[0033] For example, in Figure 6B In the example shown, the sliding mechanism 8 has a structure that utilizes, for example, the rolling of a ball using a bearing. However, alternatively, the sliding mechanism 8 may have a sliding configuration utilizing, for example, a spherical surface or a rib on a convex surface.

[0034] like Figure 4 , Figure 5 , Figure 6A as well as Figure 6B As shown, the image sensor 6 is mounted on the movable substrate 4 and configured to sense the light of the image of the subject included in the image output from the lens 1a of the lens 1.

[0035] In particular, such as Figure 5 , Figure 6A as well as Figure 6B As shown, the image sensor 6 is configured on the upper surface of the movable substrate 4 in a rectangular shape. The rectangular shape has a first side 61 and a second side 62 parallel to the first axis XL, and a third side 63 and a fourth side 64 parallel to the second axis YL. The first side 61 and the second side 62 of the image sensor 6 are the longer sides of the rectangular shape. The third side 63 and the fourth side 64 of the image sensor 6 are the shorter sides of the rectangular shape.

[0036] It is important to note that, in Figure 5 In the example, the rectangular shape of image sensor 6 is a horizontally elongated rectangle; however, the rectangular shape of image sensor 6 can also be a square.

[0037] like Figure 5 , Figure 6A as well as Figure 6BAs shown, the first actuator 71 is located at the position of the first axis (X-axis) XL along the optical axis ZL of the orthogonal lens, and is configured to apply a driving force to the movable substrate 4 in the direction of the second axis YL perpendicular to the optical axis ZL and the first axis XL, so that the movable substrate 4 on which the image sensor 6 is provided moves relative to the fixed plate 5.

[0038] In particular, the first actuator 71 is arranged on the third side 64 adjacent to the image sensor 6.

[0039] More specifically, such as Figure 5 , Figure 6A as well as Figure 6B As shown, the first actuator 71 includes a first coil 71a and a first magnet 71c. The first coil 71a is disposed on the movable substrate 4. The first magnet 71c is a permanent magnet (e.g., a bipolar magnetized magnet) disposed on the fixed plate 5 opposite to the first coil 71a, wherein the first coil 71a and the first magnet 71c constitute a motor (magnetic force conversion).

[0040] like Figure 5 , Figure 6A as well as Figure 6B As shown, the second actuator 72 is disposed on the first axis XL and configured to apply a driving force to the movable substrate 4 in the direction of the second axis YL, so as to move the movable substrate 4 relative to the fixed plate 5.

[0041] In particular, the second actuator 72 is arranged such that the third actuator 73 is located between the fourth sides 64 of the image sensor 6.

[0042] More specifically, such as Figure 5 , Figure 6A as well as Figure 6B As shown, the second actuator 72 includes a second coil 72a and a second magnet 72c. The second coil 72a is disposed on the movable substrate 4. The second magnet 72c is a permanent magnet (e.g., a bipolar magnetized magnet) disposed on the fixed plate 5 opposite to the second coil 72a, wherein the second coil 72a and the second magnet 72c constitute a motor (magnetic force conversion).

[0043] like Figure 5 , Figure 6A as well as Figure 6B As shown, the image sensor 6 is positioned between the first actuator 71 and the second actuator 72 of the first axis XL.

[0044] The third actuator is positioned along the third axis RL perpendicular to the optical axis, and configured to move in a direction perpendicular to the third axis RL. Figure 7 The rolling direction (+DR or -DR) is used to apply a driving force to the movable substrate 4 so that the movable substrate 4 moves relative to the fixed plate 5.

[0045] In this embodiment, particularly, as Figure 5 , Figure 6A as well as Figure 6B As shown, the distance between the first actuator 71 and the optical axis ZL is shorter than the distance between the second actuator 72 and the optical axis ZL.

[0046] As described above, the first actuator 71 and the second actuator 72 are configured to apply a driving force to the movable substrate 4 along the direction of the second axis YL, so as to move the movable substrate 4 relative to the fixed plate 5.

[0047] In particular, the first actuator 71 and the second actuator 72 are configured to apply a driving force to the movable substrate 4 so that the movable substrate 4, on which the image sensor 6 is provided, rolls about the optical axis ZL on the fixed plate.

[0048] like Figure 5 , Figure 6A as well as Figure 6B As shown, the third actuator 73 is disposed on the first axis XL and configured to apply a driving force to the movable substrate 4 along the first axis XL direction, so that the movable substrate 4 moves relative to the fixed plate 5.

[0049] In particular, the third actuator 73 is arranged between the second actuator 72 and the fourth side 64 of the image sensor 6.

[0050] More specifically, such as Figure 5 , Figure 6A as well as Figure 6B As shown, the third actuator 73 includes a third coil 73a and a third magnet 73c. ​​The third coil 73a is disposed on the movable base plate 4. The third magnet 73c is a permanent magnet (e.g., a bipolar magnet) disposed on the fixed plate 5, so as to be opposite to the third coil 73a, wherein the third coil 73a and the third magnet 73c constitute a motor (magnetic force conversion).

[0051] It should be noted that, as Figure 5 , Figure 6A as well as Figure 6B As shown, along the direction of the first axis XL, the image sensor 6 is located between the first actuator 71 and the second actuator 72. Furthermore, along the direction of the first axis XL, the third actuator 73 is located between the image sensor 6 and the second actuator 72.

[0052] On the other hand, such as Figure 5 , Figure 6A as well as Figure 6B As shown, the first position detection element 71b is disposed on the movable substrate 4 so as to be adjacent to the first actuator 71 along the first axis XL, and is configured to detect the relative position of the first position detection element 71a with respect to the fixed plate 5.

[0053] In particular, the first position detection element 71b detects the relative position of the first position detection element 71b with respect to the fixed plate 5 in the second axis YL direction.

[0054] For example, a first position detection element 71b is disposed on the movable substrate 4 so as to be located at the center of the first coil 71a. The first position detection element 71b is a first Hall element 71b used to detect the magnetism of the first magnet 71c.

[0055] In this case, the first position detection element 71b detects the relative position with respect to the fixed plate 5 by detecting the magnetism (magnetism of the S pole and the N pole) of the first magnet 71c.

[0056] For example, such as Figure 7 As shown, the first position detection element 71b detects the magnetism of the first magnet 71c (the magnetism of the S pole and the N pole) and outputs a voltage (converting magnetic flux density into voltage) corresponding to the distance between the pole edges 80 of the S pole and the N pole of the first magnet 71c.

[0057] For example, such as Figure 7 As shown, when the first position detection element 71b moves from the pole side 80 to a position on the N-pole side, the first position detection element 71b outputs a positive voltage. On the other hand, for example, as... Figure 7 As shown, when the first position detection element 71b moves from the pole side 80 to a position on the S pole side, the first position detection element 71b outputs a negative voltage.

[0058] The voltage output by the first position detection element 71b varies according to the distance from the pole edge 80 of the first magnet 71c. The position of the first position detection element 71b relative to the fixed plate 5 can be obtained from the voltage value. It should be noted that the detection of the second and third position detection elements 72b and 73b will also be described in the same manner.

[0059] In addition, such as Figure 5 , Figure 6A as well as Figure 6B As shown, the second position detection element 72b is disposed on the movable base plate 4 so as to be adjacent to the second actuator 72 along the first axis XL, and is configured to detect a relative position of the second position detection element 72 relative to the fixed plate 5.

[0060] In particular, the second position detection element 72b detects the relative position of the second position detection element 72b with respect to the fixed plate 5 in the second axis YL direction.

[0061] For example, a second position detection element 72b is disposed on the movable substrate 4 so as to be located at the center of the second coil 72a. The second position detection element 72b is a second Hall element 72b used to detect the magnetism of the second magnet 72c.

[0062] In this case, the second position detection element 72b detects the relative position with respect to the fixed plate 5 by detecting the magnetism (magnetism of the S pole and the N pole) of the second magnet 72c.

[0063] In addition, such as Figure 5 , Figure 6A as well as Figure 6B As shown, the third position detection element 73b is disposed on the movable base plate 4 so as to be adjacent to the third actuator 73 along the first axis XL, and is used to detect a relative position of the third position detection element 73b relative to the fixed plate 5.

[0064] In particular, the third position detection element 73b detects the relative position of the third position detection element 73b relative to the fixed plate 5 in the first axis XL direction.

[0065] For example, a third position detection element 73b is disposed on the movable substrate 4 so as to be located at the center of the third coil 73a. The third position detection element 73b is a third Hall element 73b used to detect the magnetism of the third magnet 73c.

[0066] In this case, the third position detection element 73b detects the relative position with respect to the fixed plate 5 by detecting the magnetism (magnetism of the S pole and the N pole) of the third magnet 73c.

[0067] In addition, for example, such as Figure 5 , Figure 6A as well as Figure 6B As shown, the first position detection element 71b, the second position detection element 72b, and the third position detection element 73b are arranged at positions along the first axis XL.

[0068] In particular, such as Figure 5 , Figure 6A as well as Figure 6B As shown, the first distance Ra between the first position detection element 71b and the optical axis ZL is shorter than the second distance Rb between the second position detection element 72b and the optical axis ZL.

[0069] Here, Figure 8 for Figure 5 A top view of the image sensor, first to third position detection elements, and first to third actuators of the camera assembly shown.

[0070] For example, based on the position detected by the first position detection element 71b and the position detected by the second position detection element 72b, the relative position of the image sensor 6 relative to the fixed plate 5 in the second axis YL direction can be obtained, or the relative position of the image sensor 6 relative to the fixed plate 5 when rolling around the optical axis ZL can be obtained.

[0071] More specifically, when the polarity of the position detected by the first position detection element 71b in the second axis YL direction is the same as the polarity of the position detected by the second position detection element 72b in the second axis YL direction, the image sensor 6 in the second axis YL direction ( Figure 8 Displacement in the direction of +DY or -DY.

[0072] On the other hand, when the polarity of the position detected by the first position detection element 71b in the second axis YL direction is different from the polarity of the position detected by the second position detection element 72b in the second axis YL direction, the image sensor 6 rotates around the optical axis ZL ( Figure 8 Scroll in the direction of +DR or -DR.

[0073] Furthermore, based on the position detected by the third position detection element 73b, a relative position of the image sensor 6 relative to the fixed plate 5 in the first axis XL direction is obtained.

[0074] For example, when the position detected by the third position detection element 73b is displaced in the first axis XL direction, the image sensor 6 moves in the first axis XL direction. Figure 8 (Direction +DX or -DX in the middle).

[0075] By arranging the first and third position detection elements 71b, 72b and 73b as described above, such as Hall elements (using NS pole edges for detection), the rolling center of the image sensor 6 is located at the center of the optical axis ZL, and the first and second position detection elements 71b and 72b are located on the first axis XL. Therefore, the direction of the second axis YL will not be misaligned during rolling, and interference to the direction of the first axis XL is reduced.

[0076] It should be noted that an additional camera assembly (not shown) may be arranged adjacent to the camera assembly 30 in the second axis YL direction.

[0077] For example, this situation corresponds to, as Figure 1 As shown, the first camera assembly 30a and the second camera assembly 30b are arranged side by side along the long side of the electronic device 10 through a spacer.

[0078] As described above, optical image stabilization (OIS) mechanisms, such as actuators and position sensing elements, are located in the horizontal direction (first axis XL direction) of the camera assembly, thereby shortening the vertical direction (second axis YL direction) of the camera assembly.

[0079] Therefore, there is no need for optical image stabilization (OIS) mechanisms such as actuators or position detection elements between adjacent camera components, which increases the placement freedom for other applications.

[0080] Specifically, such as Figure 5As shown, regions 201, 202, 203 and 204 can be set around the movable base plate 4 and the fixed plate 5 of the camera assembly 30, and other driving mechanisms can be set in these regions.

[0081] Therefore, since the camera assembly 30 has the above configuration, the camera assembly 30 can achieve an optimal layout for mounting multiple cameras with optical image stabilization (OIS) mechanisms.

[0082] Hereinafter, an example of the operation of the camera component 30 having the above configuration will be described.

[0083] Figure 9 show Figure 8 A top view of an example of the image sensor of the camera assembly shown moving along the first axis. Figure 10 show Figure 8 A top view of an example of the state in which the image sensor of the camera assembly moves along the second axis. Figure 11 show Figure 8 A top view of an example of the state in which the image sensor of the camera assembly is rolling around the optical axis.

[0084] As described above, the camera assembly 30 has an optical image stabilization (OIS) mechanism.

[0085] In other words, the first actuator 71, the second actuator 72, and the third actuator 73, together with the first position detection element 71b, the second position detection element 72b, and the third position detection element 73b, perform optical image stabilization (OIS) control on the image sensor 6.

[0086] For example, such as Figure 9 As shown, the third actuator 73 applies a driving force to the movable substrate 4 along the first axis XL direction to move the movable substrate 4 relative to the fixed plate 5 (image stabilization along the first axis XL direction).

[0087] exist Figure 9 In the illustrated case, the camera assembly 30 energizes the third coil 73a according to the directional value of the movement distance +XE3. This causes the third actuator 73 to generate a driving force along the +DX direction. This driving force moves the image sensor 6 (third position detection element 73b) to... Figure 9 Distance in the middle + XE3.

[0088] It should be noted that when the polarity of the direction indication value is reversed, the polarity of the driving force generated by the third actuator 73 is also reversed, and the direction of movement is also reversed.

[0089] In particular, such as Figure 9As shown, based on the position detected by the third position detection element 73b, a relative position of the image sensor 6 relative to the fixed plate 5 in the first axis XL direction is obtained.

[0090] Next, as Figure 10 As shown, the first actuator 71 and the second actuator 72 apply a driving force to the movable substrate 4 along the second axis YL direction to move the movable substrate 4 relative to the fixed plate 5 (the image along the second axis YL direction is stabilized).

[0091] exist Figure 10 In the illustrated case, camera assembly 30 energizes the first coil 71a based on the direction value of the movement distance +YE, and camera assembly 30 energizes the second coil 72a based on the direction value of the movement distance +YE2. This causes the first actuator 71 to generate a driving force along the +YD direction and the second actuator 72 to generate a driving force along the +YD direction. The driving force moves the image sensor 6 (the first position detection element 71b and the second position detection element 72b) to... Figure 10 The distance in the middle is +YE1 and YE2.

[0092] It should be noted that when the polarity of the direction indication value is reversed, the polarity of the driving force generated by the first and second actuators 71 and 72 is reversed, and the direction of movement is also reversed.

[0093] Next, as Figure 11 As shown, the first actuator 71 and the second actuator 72 apply a driving force to the movable substrate 4 so that the movable substrate 4, on which the image sensor 6 is provided, rolls around the optical axis ZL on the fixed plate 5 (the image is stabilized in the rolling direction centered on the optical axis ZL).

[0094] exist Figure 11 In the illustrated case, the camera assembly 30 energizes the first coil 71a based on the direction value of the movement distance + YE1. Furthermore, the camera assembly 30 energizes the second coil 72a based on the direction value, which is the movement distance + YE2 multiplied by the ratio of the second distance Rb to the first distance Ra.

[0095] This causes the first actuator 71 to generate driving force in the +DY direction and the second actuator 72 to generate driving force in the -DY direction.

[0096] This causes the image sensor 6 (first position detection element 71b) to roll around the optical axis ZL.

[0097] Thus, when the image sensor 6 rotates around the optical axis ZL, the relationship between a first command value indicating the distance to drive the first actuator 71 and a second command value indicating the distance to drive the second actuator is determined based on the ratio of the first distance Ra to the second distance Rb.

[0098] It should be noted that when the polarity of the direction indication value is reversed, the polarity of the driving force generated by the first actuator 71 and the second actuator 72 is reversed, and the direction of movement is also reversed.

[0099] As described above, based on the position detected by the first position detection element 71b and the position detected by the second position detection element 72b, a relative position of the image sensor 6 relative to the fixed plate 5 in the second axis YL direction is obtained, or a relative position of the image sensor 6 relative to the fixed plate 5 when it rolls around the optical axis ZL is obtained.

[0100] More specifically, such as Figure 10 As shown, when the polarity of the position detected by the first position detection element 71b in the second axis YL direction is the same as the polarity of the position detected by the second position detection element 72b in the second axis YL direction, the image sensor 6 is displaced in the second axis YL direction.

[0101] On the other hand, such as Figure 11 As shown, when the polarity of the position detected by the first position detection element 71b in the second axis YL direction is different from the polarity of the position detected by the second position detection element 72b in the second axis YL direction, the image sensor 6 rolls around the optical axis ZL.

[0102] As described above, the rolling centers of the first actuator 71 and the second actuator 72 overlap with the center of the optical axis ZL, and the third position detection element 73b is located on the first axis XL. Therefore, even if the image sensor 6 rolls through the first actuator 71 and the second actuator 72, the position change of the third position detection element 73b is very small and negligible.

[0103] It is important to note that they can be combined and executed. Figure 9 The image stabilization along the first axis XL direction shown and Figure 10 The image shown is stable along the second axis YL.

[0104] Similarly, they can be combined and executed. Figure 9 The image stabilization along the first axis XL direction shown and Figure 11 The image shown is stable in the rolling direction around the optical axis ZL.

[0105] Similarly, they can be combined and executed. Figure 10 The image stability along the second axis YL direction shown is as follows: Figure 11 The image shown is stable in the rolling direction around the optical axis ZL.

[0106] Similarly, they can be combined and executed. Figure 9 The image shown in the first axis XL direction is stable. Figure 10 The image stability along the second axis YL direction shown is as follows: Figure 11 The image shown is stable in the rolling direction around the optical axis ZL.

[0107] As described above, by arranging the first position detection element 71b, the second position detection element 72b to the third position detection element 73b as described above, such as Hall elements (using the NS pole edge for detection), the rolling center of the image sensor 6 is located at the center of the optical axis ZL, and the first position detection element 71b and the second position detection element 72b are located on the first axis XL, which can detect the positions of the first axis XL, the second axis YL and the optical axis ZL. Therefore, there will be no misalignment in the direction of the second axis YL during rolling, and the interference to the direction of the first axis XL is reduced.

[0108] As described above, the camera assembly 30 of the electronic device 10 according to this embodiment includes: a fixing plate fixed to a housing of the camera assembly 30; a movable substrate 4 disposed above the fixing plate 5 and configured to be movable relative to the fixing plate 5 along a direction perpendicular to an optical axis ZL of a lens 1a; an image sensor 6 disposed on the movable substrate 4 and configured to sense the light output from the lens 1a; and a first actuator 71 disposed at a position along a first axis XL orthogonal to the optical axis ZL of the lens 1a and configured to... A driving force is applied to the movable substrate 4 along a second axis YL orthogonal to the optical axis ZL and the first axis XL, so that the movable substrate 4, on which the image sensor 6 is mounted, moves relative to the fixed plate 5; a second actuator 72 is disposed along the first axis XL and configured to apply the driving force to the movable substrate 4 along the second axis YL, so that the movable substrate 4 moves relative to the fixed plate 5; a third actuator 73 is disposed along the first axis XL and configured to apply the driving force along the first axis YL. The driving force is applied to the movable substrate 4 in the direction of XL to move the movable substrate 4 relative to the fixed plate 5; a first position detection element 71b is disposed adjacent to the first actuator 71 along the first axis XL and configured to detect a position in the direction of the second axis YL; a second position detection element 72b is disposed adjacent to the second actuator 72 along the first axis XL and configured to detect a position in the direction of the second axis YL; and a third position detection element 73b is disposed adjacent to the third actuator 73 along the first axis XL and configured to detect a position in the direction of the first axis XL, wherein, along the direction of the first axis XL, the image sensor 6 is located between the first actuator 71 and the second actuator 72, wherein, along the direction of the first axis XL, the third actuator 73 is located between the image sensor 6 and the second actuator 72, and wherein, a first distance Ra between the first position detection element 71b and the optical axis XL is different from a second distance Rb between the second position detection element 72b and the optical axis ZL.

[0109] As described above, by arranging the first position detection element 71b, the second position detection element 72b to the third position detection element 73b as described above, such as Hall elements (using the NS pole edge for detection), the rolling center of the image sensor 6 is located at the center of the optical axis ZL, and the first position detection element 71b and the second position detection element 72b are located on the first axis XL, which can detect the positions of the first axis XL, the second axis YL and the optical axis ZL. Therefore, there will be no misalignment in the direction of the second axis YL during rolling, and the interference to the direction of the first axis XL is reduced.

[0110] Furthermore, optical image stabilization (OIS) mechanisms, such as actuators and position sensing elements, are located in the horizontal direction (first axis XL direction) of the camera assembly, thereby shortening the vertical direction (second axis YL direction) of the camera assembly.

[0111] In the description of the embodiments disclosed herein, it should be understood that terms such as “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “clockwise,” and “counterclockwise” should be understood to refer to the direction or position described or shown in the drawings. These relative terms are used only to simplify the description of this disclosure and do not indicate or imply that the mentioned devices or elements must have a specific orientation, or be constructed or operated in a specific orientation. Therefore, these terms should not be construed as limiting this disclosure.

[0112] Furthermore, the terms "first," "second," etc., used herein are for descriptive purposes only and are not intended to indicate or imply relative importance or significance, nor are they intended to imply the number of technical features indicated. Therefore, a feature defined using "first," "second," etc., may include one or more of that feature. In this disclosure, "a plurality of" means two or more, unless otherwise stated.

[0113] In the description of the embodiments disclosed herein, unless otherwise stated or limited, the terms "installation," "connection," "coupling," etc., are used broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can also be mechanical connections or electrical connections; they can also be direct connections or indirect connections through intermediate structures; they can also be internal connections between two components, which can be understood by those skilled in the art according to the specific circumstances.

[0114] In the embodiments disclosed herein, unless otherwise stated or limited, a structure in which the first feature is located "above" or "below" the second feature can include embodiments in which the first feature and the second feature are in direct contact, or embodiments in which the first feature and the second feature are in contact through an additional feature formed therebetween. Furthermore, "above," "above," or "top" the second feature can include embodiments in which the first feature is directly above or diagonally above the second feature, or simply means that the height of the first feature is greater than the height of the second feature; while "below," "below," or "bottom" the second feature can include embodiments in which the first feature is directly below or diagonally below the second feature, or simply means that the height of the first feature is less than the height of the second feature.

[0115] The above description provides various embodiments and examples to implement different structures of this disclosure. To simplify this disclosure, certain elements and arrangements are described above. However, these elements and arrangements are merely examples and are not intended to limit this disclosure. Furthermore, reference numerals and / or reference letters may be repeated in different examples of this disclosure. Such repetition is for simplification and clarity and does not indicate a relationship between different embodiments and / or arrangements. Additionally, this disclosure provides examples of different processes and materials. However, those skilled in the art will understand that other processes and / or materials may also be applied.

[0116] The terms "an embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples" used in this specification all indicate that a particular feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example disclosed herein. Therefore, the foregoing language appearing in this specification does not necessarily refer to the same embodiment or example disclosed herein. Furthermore, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0117] Any process or method described in a flowchart or otherwise herein can be understood to include one or more modules, code segments or portions of executable instructions for implementing a particular logical function or step in the process, and the scope of the preferred embodiments disclosed herein includes other implementations, wherein those skilled in the art will understand that functionality may be implemented in an order different from the order shown or discussed, including in substantially the same order or in the reverse order.

[0118] The logic and / or steps otherwise described herein or illustrated in flowcharts, such as a specific list of executable instructions for implementing logical functions, may be embodied in any computer-readable medium for use by an instruction execution system, apparatus, or device (e.g., a computer-based system, a processor-containing system, or other system capable of fetching and executing instructions from or in conjunction with an instruction execution system, apparatus, or device). As used herein, “computer-readable medium” can be any device suitable for containing, storing, communicating, propagating, or transmitting programs for use by or in conjunction with an instruction execution system, apparatus, or device. More specific examples of computer-readable media include, but are not limited to: electronic connections (electronic devices) having one or more lines, portable computer casings (magnetic devices), random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Furthermore, computer-readable media can even be paper or other suitable media capable of printing programs, because, for example, paper or other suitable media can be optically scanned and then edited, decrypted or otherwise processed as necessary to obtain the program electronically, which can then be stored in computer memory.

[0119] It should be understood that the various parts of this disclosure can be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in memory and executed by an appropriate instruction execution system. For example, if implemented in hardware, similarly, in other embodiments, the steps or methods can be implemented by one or more combinations of the following techniques known in the art: discrete logic circuits having logic gates for implementing data signal logic functions, application-specific integrated circuits (ASICs) having appropriate combinations of logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0120] Those skilled in the art will understand that all or part of the steps in the exemplary methods disclosed above can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when run on a computer, it includes one or a combination of steps from the method embodiments disclosed herein.

[0121] Furthermore, the functional units in this disclosed embodiment can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a processing module. The integrated module can be implemented in hardware or as a software functional module. When the integrated module is implemented as a software functional module and sold or used as an independent product, the integrated module can be stored in a computer-readable storage medium.

[0122] The storage media mentioned above can be read-only memory, disk, optical disk, etc.

[0123] Although embodiments of the present disclosure have been shown and described, those skilled in the art should understand that these embodiments are illustrative and not intended to limit the present disclosure, and that changes, modifications, substitutions, and variations may be made to the embodiments without departing from the scope of the present disclosure.

Claims

1. A camera assembly having optical image stabilization (OIS) and a mechanism, characterized in that, The camera assembly includes: A fixing plate is fixed to a housing of the camera assembly; A movable base plate is disposed above the fixed plate and configured to be movable relative to the fixed plate in a direction perpendicular to an optical axis of a lens; An image sensor is disposed on the movable substrate and configured to sense the light output from the lens; A first actuator is disposed at a position along a first axis orthogonal to the optical axis of the lens, and configured to apply the driving force to the movable substrate along a second axis orthogonal to the optical axis and the first axis, so as to move the movable substrate on which the image sensor is disposed relative to the fixed plate. A second actuator is disposed at a position along the first axis and configured to apply the driving force to the movable substrate in the direction of the second axis to move the movable substrate relative to the fixed plate; A third actuator is disposed at a position along the first axis and configured to apply the driving force to the movable substrate in the direction of the first axis so as to move the movable substrate relative to the fixed plate; A first position detection element is disposed adjacent to the first actuator along the first axis and configured to detect a position in the direction of the second axis; A second position detection element is disposed adjacent to the second actuator along the first axis and configured to detect a position in the direction of the second axis; and A third position detection element is disposed adjacent to the third actuator along the first axis and configured to detect a position in the direction of the first axis. Along the direction of the first axis, the image sensor is located between the first actuator and the second actuator. Wherein, along the direction of the first axis, the third actuator is located between the image sensor and the second actuator, and Wherein, the first distance between the first position detection element and the optical axis is different from the second distance between the second position detection element and the optical axis.

2. The camera assembly according to claim 1, characterized in that, The first distance between the first position detection element and the optical axis is less than the second distance Rb between the second position detection element and the optical axis.

3. The camera assembly according to claim 1 or 2, characterized in that, The distance between the first actuator and the optical axis is different from the distance between the second actuator and the optical axis.

4. The camera assembly according to claim 3, characterized in that, The distance between the first actuator and the optical axis is less than the distance between the actuator and the optical axis.

5. The camera assembly according to any one of claims 1 to 4, characterized in that, When the image sensor rotates about the optical axis, a relationship is determined between a first instruction value indicating the distance driving the first actuator and a second instruction value indicating the distance driving the second actuator, based on the ratio of the first distance to the second distance.

6. The camera assembly according to any one of claims 1 to 5, characterized in that, The first actuator includes a first coil and a first magnet, the first coil and the first magnet constituting a magnetic force conversion. The second actuator includes a second coil and a second magnet, the second coil and the second magnet constituting a magnetic force conversion. The third actuator includes a third coil and a third magnet, the third coil and the third magnet constituting a magnetic force conversion. The first position detection element is a first Hall element used to detect the magnetism of the first magnet. The second position detection element is a second Hall element used to detect the magnetism of the second magnet, and The third position detection element is a third Hall element used to detect the magnetism of the third magnet.

7. The camera assembly according to any one of claims 1 to 6, characterized in that, The first actuator, the second actuator, and the third actuator perform optical image stabilization (OIS) control on the image sensor.

8. The camera assembly according to any one of claims 1 to 7, characterized in that, The first actuator and the second actuator apply a driving force to the movable substrate to cause the movable substrate, on which the image sensor is mounted, to roll about the optical axis on the fixed plate.

9. The camera assembly according to any one of claims 1 to 8, characterized in that, Further includes: A sliding mechanism is disposed between the fixed plate and the movable substrate, the sliding mechanism being configured such that the movable substrate can slide on the fixed plate in a direction perpendicular to the optical axis.

10. The camera assembly according to any one of claims 1 to 9, characterized in that, The image sensor is configured to have a rectangular shape located on the upper surface of the movable substrate and having a first side and a second side parallel to the first axis, and a third side and a fourth side parallel to the second axis.

11. The camera assembly according to any one of claims 1 to 10, characterized in that, The first position detection element is disposed on the movable base plate such that it is adjacent to the first actuator and is used to detect a relative position of the first position detection element with respect to the fixed plate. The second position detection element is disposed on the movable base plate such that it is adjacent to the second actuator and is used to detect a relative position of the second position detection element with respect to the fixed plate; as well as The third position detection element is disposed on the movable base plate so as to be adjacent to the third actuator and to detect a relative position of the third position detection element with respect to the fixed plate.

12. The camera assembly according to claim 11, characterized in that, Based on the positions detected by the first position detection element and the second position detection element, the relative position of the image sensor in the second axial direction relative to the fixed plate is obtained, or the relative position of the image sensor rolling about the optical axis relative to the fixed plate is obtained. Based on the position detected by the third position detection element, the relative position of the image sensor with respect to the fixed plate in the first axial direction is obtained.

13. An electronic device, characterized in that, include: A shell; as well as A camera assembly is disposed within the housing. The camera component includes: A fixing plate is fixed to the housing of the camera assembly; A movable base plate is disposed above the fixed plate and configured to be movable relative to the fixed plate in a direction perpendicular to an optical axis of a lens; An image sensor is disposed on the movable substrate and configured to sense the light output from the lens; A first actuator is disposed at a position along a first axis orthogonal to the optical axis of the lens, and configured to apply the driving force to the movable substrate along a second axis orthogonal to the optical axis and the first axis, so as to move the movable substrate on which the image sensor is disposed relative to the fixed plate. A second actuator is disposed at a position along the first axis and configured to apply the driving force to the movable substrate in the direction of the second axis to move the movable substrate relative to the fixed plate; A third actuator is disposed at a position along the first axis and configured to apply the driving force to the movable substrate in the direction of the first axis so as to move the movable substrate relative to the fixed plate; A first position detection element is disposed adjacent to the first actuator along the first axis and configured to detect a position in the direction of the second axis; A second position detection element is disposed adjacent to the second actuator along the first axis and configured to detect a position in the direction of the second axis; and A third position detection element is disposed adjacent to the third actuator along the first axis and configured to detect a position in the direction of the first axis. Along the direction of the first axis, the image sensor is located between the first actuator and the second actuator. Wherein, along the direction of the first axis, the third actuator is located between the image sensor and the second actuator, and Wherein, the first distance between the first position detection element and the optical axis is different from the second distance between the second position detection element and the optical axis.

Images