Lens actuator, camera module and electronic device

Abstract

The present disclosure relates to a lens actuator, a camera module and an electronic device. The lens actuator comprises a base, a lens carrier arranged in a space enclosed by the base, and a center opening of the lens carrier is aligned with a center opening of the base, a lens holder arranged between the base and the lens carrier, a movable element connected between the lens holder and the base, the lens holder is used to drive the lens carrier to move along an optical axis direction, and an elastic element connected between the lens holder and the lens carrier, and the elastic element is sleeved on at least part of the lens carrier, and the lens carrier can move along different directions perpendicular to the optical axis direction relative to the lens holder. The lens actuator according to the embodiment of the present disclosure can reduce the occupied space along the optical axis direction.

Description

Technical Field

[0001] This disclosure relates to the field of cameras, and more particularly to a lens actuator, camera module, and electronic device. Background Technology

[0002] Lens control has always been crucial to image quality. By controlling and adjusting the lens position, functions such as zooming, focusing, and image stabilization can be achieved in a camera module. Currently, lens actuators are typically used to drive the lens in a camera module. However, current lens actuators suffer from a large space requirement due to the stacking of components. Summary of the Invention

[0003] To overcome the problems existing in the related technologies, this disclosure provides a lens actuator, a camera module, and an electronic device that can reduce the space occupied by the lens actuator along the optical axis.

[0004] According to a first aspect of the present disclosure, a lens actuator is provided, comprising:

[0005] Base;

[0006] A lens carrier is disposed within the space enclosed by the base, and the central opening of the lens carrier is aligned with the central opening of the base;

[0007] A lens bracket is disposed between the base and the lens carrier;

[0008] A movable component is connected between the lens bracket and the base, and the lens bracket is used to drive the lens carrier to move along the optical axis.

[0009] An elastic element is connected between the lens bracket and the lens carrier, and is sleeved on at least a portion of the lens carrier, the lens carrier being movable relative to the lens bracket in different directions perpendicular to the optical axis.

[0010] In this embodiment, the movement of the lens carrier can be achieved by setting a movable member and an elastic member, which simplifies the structure of the lens actuator. Furthermore, in this embodiment, the elastic member is sleeved on at least a portion of the lens carrier and is not stacked along the optical axis, which reduces the space occupied by the lens actuator along the optical axis.

[0011] In some embodiments, the elastic element includes: a first elastic element and a second elastic element disposed at intersections;

[0012] The first elastic element is connected to the first side of the lens bracket and the lens carrier;

[0013] The second elastic element is connected to the second side of the lens carrier, and the second side and the first side are adjacent two sides of the lens carrier.

[0014] In this embodiment of the present disclosure, by providing two elastic elements to partially surround the lens carrier, the lens carrier can move relative to the lens support in different directions perpendicular to the optical axis while simplifying the structure.

[0015] In some embodiments, the first elastic member and the lens bracket are both disposed between the base and the lens carrier in a direction perpendicular to the optical axis.

[0016] In this embodiment, the first elastic element and the lens bracket are both arranged perpendicular to the optical axis and do not need to be stacked along the optical axis, which can further reduce the space occupied by the lens actuator along the optical axis.

[0017] In some embodiments, the lens carrier has a third side disposed opposite to the first side and a fourth side disposed opposite to the second side;

[0018] A first magnetic element is provided on the third side; a second magnetic element is provided on the fourth side;

[0019] The first magnetic component and the second magnetic component are used to drive the lens carrier to move in different directions perpendicular to the optical axis.

[0020] In this embodiment of the present disclosure, by providing different magnetic components on the third side and the second side respectively, it is possible to better realize the movement of the driving lens carrier in different directions perpendicular to the optical axis.

[0021] In some embodiments, the lens bracket has a first movable groove arranged along the optical axis; the base has a second movable groove arranged along the optical axis.

[0022] The movable component is located within the space enclosed by the first movable slot and the second movable slot.

[0023] In this embodiment of the present disclosure, the first movable groove and the second movable groove arranged along the optical axis can form a movable limit, so that the movable part can move along the optical axis but cannot move in other directions other than the optical axis.

[0024] In some embodiments, the lens bracket is provided with a third magnetic element at a position different from the first movable slot, and the third magnetic element is used to drive the lens bracket to move the lens carrier along the optical axis.

[0025] In this embodiment of the present disclosure, by providing a third magnetic component on the lens holder, it is possible to better drive the lens carrier to move along the optical axis.

[0026] In some embodiments, the base is provided with a fourth magnetic element, which is also used to generate a magnetic attraction with the third magnetic element, so that the lens bracket can be attached to the base when it moves along the optical axis.

[0027] In this embodiment of the present disclosure, by setting a fourth magnetic component and a third magnetic component to generate a magnetic attraction effect, it is possible to enable the lens bracket to move along the optical axis while also attaching to the base.

[0028] In some embodiments, the lens bracket is provided with two first movable slots; the third magnetic element is located between the two first movable slots.

[0029] In this embodiment of the present disclosure, by setting a third magnetic component between the two first movable slots, it is possible to achieve better magnetic fixation while enabling the lens bracket to move more stably along the optical axis.

[0030] In some embodiments, the lens actuator includes:

[0031] A flexible circuit board surrounds a first sidewall, a second sidewall, and a third sidewall of the base; the second sidewall is connected to the first sidewall and the third sidewall.

[0032] The first coil is disposed in the opening of the first sidewall and is disposed on the same side of the base as the first magnetic component of the lens actuator;

[0033] The second coil is disposed in the opening of the second side wall and is disposed on the same side of the base as the second magnetic component of the lens actuator;

[0034] The third coil is disposed in the opening of the third sidewall and is disposed on the same side of the base as the third magnetic component of the lens actuator.

[0035] In this embodiment of the disclosure, by setting three coils to interact with three magnetic components respectively, it is possible to better drive the lens carrier to move in three different directions.

[0036] In some embodiments, the moving element includes a slider or a roller.

[0037] In this embodiment of the present disclosure, by providing a sliding member or a rolling member connected between the lens bracket and the base, the lens bracket can drive the lens carrier to move along the optical axis.

[0038] According to a second aspect of the present disclosure, a camera module is provided, including the lens actuator described in the first aspect.

[0039] According to a third aspect of the present disclosure, an electronic device is provided, including the lens actuator described in the first aspect or the camera module described in the second aspect.

[0040] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0041] In this embodiment, the lens bracket is connected to the base via a movable member, enabling the lens carrier to move along the optical axis. The lens carrier is connected to the lens bracket via an elastic member, allowing it to move relative to the lens bracket in different directions perpendicular to the optical axis. Thus, the movement of the lens carrier can be achieved simply by using the movable and elastic members, simplifying the structure of the lens actuator. Furthermore, in this embodiment, the elastic member is fitted over at least a portion of the lens carrier and is not stacked along the optical axis, reducing the space occupied by the lens actuator along the optical axis.

[0042] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0043] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0044] Figure 1 This is an exploded view of a lens actuator according to an exemplary embodiment.

[0045] Figure 2 This is an overall structural diagram of a lens actuator according to an exemplary embodiment.

[0046] Figure 3 This is a top view of a lens actuator according to an exemplary embodiment.

[0047] Figure 4 This is a top view of a lens actuator according to an exemplary embodiment.

[0048] Figure 5 This is a structural block diagram of an electronic device according to an exemplary embodiment.

[0049] The attached figures are labeled as follows:

[0050] Base 101, lens carrier 102, lens bracket 103, movable component 104, elastic component 105, first magnetic component 106, second magnetic component 107, first movable slot 108, second movable slot 109, third magnetic component 110, fourth magnetic component 111, flexible circuit board 112, first coil 113, second coil 114, third coil 115; mounting hole 116; outer shell 117;

[0051] First elastic element 105A, second elastic element 105B;

[0052] First sidewall 101A, second sidewall 101B, third sidewall 101C;

[0053] First direction X, second direction Y, optical axis direction Z. Detailed Implementation

[0054] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0055] This disclosure also proposes a lens actuator for driving a lens carrier to move in different directions to change the position of the lens, thereby realizing the zoom, focus and image stabilization functions of the camera module.

[0056] like Figures 1 to 4 As shown, the lens actuator 100 includes:

[0057] Base 101;

[0058] The lens carrier 102 is fitted inside the base 101, and the central opening of the lens carrier 102 is aligned with the central opening of the base 101.

[0059] The lens bracket 103 is disposed between the base 101 and the lens carrier 102;

[0060] The movable component 104 is connected between the lens bracket 103 and the base 101. The lens bracket 103 is used to drive the lens carrier 102 to move along the optical axis direction Z.

[0061] An elastic element 105 is connected between the lens bracket 103 and the lens carrier 102, and is sleeved on at least a portion of the lens carrier 102, the lens carrier 102 being able to move relative to the lens bracket 103 in different directions perpendicular to the optical axis Z.

[0062] In this embodiment of the disclosure, such as Figure 1 As shown, the base 101 of the lens actuator is used to cooperate with the housing 117 of the lens actuator. The housing 117 can cover the base 101, and the center opening of the housing 117 is aligned with the center opening of the base 101. The housing is responsible for protecting the stability of the internal structure of the base.

[0063] It should be noted that the base can be a hollow structure with a central opening, allowing the lens carrier to be installed inside the base, and the central opening of the lens carrier is aligned with the central opening of the base.

[0064] Here, the base can be in four shapes, or of course, other shapes. This disclosure does not limit this.

[0065] In this embodiment of the disclosure, the lens carrier can be used to carry the lens so that the lens can move when the lens carrier moves.

[0066] It should be noted that the center opening of the outer shell is aligned with the center openings of the lens carrier and the base, respectively, so that light can pass through the lens and reach the imaging sensor.

[0067] Here, the imaging sensor includes a complementary metal-oxide-semiconductor (CMOS) image sensor or a charge-coupled device (CCD) image sensor, and the embodiments disclosed herein are not limited thereto.

[0068] In this embodiment of the present disclosure, the lens bracket is connected to the base via a movable component and can move relative to the base along the optical axis. Thus, the movement of the lens bracket can drive the lens carrier to move along the optical axis as well.

[0069] Here, the optical axis direction can be the extension direction of the lens's center line on the lens carrier. Moving the lens along the optical axis direction changes the distance between the lens and the imaging plane, thereby achieving focusing.

[0070] It should be noted that the movable component can be positioned between the lens support and the base in a direction perpendicular to the optical axis; that is, the movable component is not stacked on the base along the optical axis. Furthermore, the optical axis is aligned with the height direction of the lens actuator. Therefore, the height of the lens actuator can be reduced.

[0071] In this embodiment of the disclosure, the movable component can enable the lens holder to move along the optical axis through sliding friction or rolling friction. In some embodiments, such as Figures 1 to 4 As shown, the movable component 104 includes a sliding component or a rolling component.

[0072] In this embodiment of the disclosure, the rolling element may include a plurality of balls, which may be arranged between the lens bracket and the base along the optical axis.

[0073] It is understood that, in the embodiments of this disclosure, by providing a sliding member or a rolling member connected between the lens bracket and the base, the lens bracket can drive the lens carrier to move along the optical axis.

[0074] In this embodiment of the present disclosure, the elastic element is sleeved on at least part of the lens carrier and is not stacked along the optical axis, which can reduce the space occupied by the lens actuator along the optical axis.

[0075] Here, the length of the lens actuator along the optical axis can be understood as the height of the lens actuator, that is, the embodiments of this disclosure can reduce the height of the lens actuator.

[0076] It should be noted that the elastic element is fitted onto at least a portion of the lens carrier, which may include: the elastic element being fitted onto a portion of the lens carrier. For example, the elastic element is disposed around two different sides of the lens carrier.

[0077] Of course, the elastic element may be fitted onto at least part of the lens carrier, or it may be fitted onto the entire lens carrier. For example, the elastic element may be positioned around all sides of the lens carrier.

[0078] In this embodiment, the elastic element can elastically deform in different directions perpendicular to the optical axis. Therefore, the lens carrier is connected to the lens support via the elastic element, enabling the lens carrier to move relative to the lens support in different directions perpendicular to the optical axis. It should be noted that driving the lens carrier to move in different directions perpendicular to the optical axis also allows the lens on the lens carrier to move in different directions perpendicular to the optical axis. This helps to suppress image blurring due to hand shake during shooting.

[0079] It is understood that in this embodiment, the lens bracket is connected to the base via a movable member, enabling the lens carrier to move along the optical axis; the lens carrier is connected to the lens bracket via an elastic member, allowing it to move relative to the lens bracket in different directions perpendicular to the optical axis. Thus, the movement of the lens carrier can be achieved by using the movable and elastic members, simplifying the structure of the lens actuator. Furthermore, in this embodiment, the elastic member is fitted over at least a portion of the lens carrier and is not stacked along the optical axis, reducing the space occupied by the lens actuator along the optical axis.

[0080] In some embodiments, such as Figures 1 to 4 As shown, the elastic element 105 includes: a first elastic element 105A and a second elastic element 105B that are intersected and arranged.

[0081] The first elastic element 105A is connected to the first side of the lens bracket 103 and the lens carrier 102;

[0082] The second elastic element 105B is connected to the second side of the lens carrier 102, and the second side and the first side are adjacent two sides of the lens carrier 102.

[0083] In this embodiment, both the first and second elastic elements can be used to undergo elastic deformation when the lens carrier moves in a direction perpendicular to the optical axis. That is, the elastic elements have low rigidity in different directions perpendicular to the optical axis, enabling the lens carrier to move relative to the lens support in different directions perpendicular to the optical axis.

[0084] It should be noted that both the first elastic element and the second elastic element can be, but are not limited to, spring sheets.

[0085] Here, the first elastic element and the second elastic element can be arranged in different directions perpendicular to the optical axis.

[0086] For example, the first elastic element is arranged along a first direction perpendicular to the optical axis, and the second elastic element is arranged along a second direction perpendicular to the optical axis. The elastic element composed of the first elastic element and the second elastic element can be L-shaped.

[0087] It should be noted that the lengths of the first elastic element and the second elastic element along the optical axis are both less than or equal to the length of the lens carrier along the optical axis. This reduces the space occupied by the elastic elements along the optical axis.

[0088] It is understood that, in this embodiment of the present disclosure, by providing two elastic elements to surround the lens carrier, the structure can be simplified while enabling the lens carrier to move in different directions relative to the lens support along the direction perpendicular to the optical axis.

[0089] In some embodiments, such as Figures 1 to 4 As shown, the first elastic element 105A and the lens bracket 103 are both disposed between the base 101 and the lens carrier 102 in a direction perpendicular to the optical axis.

[0090] In this embodiment of the disclosure, such as Figure 1 As shown, the direction perpendicular to the optical axis Z includes either a second direction Y perpendicular to the optical axis Z or a first direction X perpendicular to the optical axis Z. Here, the first direction X can be either the length direction or the width direction of the lens actuator, and the second direction Y can be either the length direction or the width direction of the lens actuator.

[0091] like Figures 1 to 4As shown, the first elastic element 105A and the lens bracket 103 can be disposed between the base 101 and the lens carrier 102 along the first direction X. Here, the base 101 is provided with a third sidewall 101C along the first direction X, and the lens bracket 103 is disposed between the third sidewall 101C of the base 101 and the first elastic element 105A.

[0092] It is understood that in this embodiment of the present disclosure, the first elastic element and the lens bracket are both arranged in the direction perpendicular to the optical axis, and they do not need to be stacked along the optical axis, which can further reduce the space occupied by the lens actuator along the optical axis.

[0093] In some embodiments, such as Figures 1 to 4 As shown, the lens carrier 102 has a third side disposed opposite to the first side and a fourth side disposed opposite to the second side;

[0094] The third side is provided with a first magnetic element 106; the fourth side is provided with a second magnetic element 107;

[0095] The first magnetic element 106 and the second magnetic element 107 are used to drive the lens carrier 102 to move in different directions perpendicular to the optical axis Z.

[0096] In this embodiment of the disclosure, the direction in which the first magnetic component provides driving force for the movement of the lens carrier is different from the direction in which the second magnetic component provides driving force for the movement of the lens carrier.

[0097] It should be noted that the first magnetic component can provide a driving force in a first direction for the lens carrier, and the second magnetic component can provide a driving force in a second direction for the lens carrier.

[0098] In this embodiment of the disclosure, such as Figure 1 As shown, the first magnetic element 106 and the first elastic element 105A can be disposed on opposite sides of the lens carrier 102 along the first direction X. This arrangement of the first magnetic element and the first elastic element does not increase the space occupied along the optical axis.

[0099] And, as Figure 1 As shown, the second magnetic element 107 and the second elastic element 105B can be disposed on opposite sides of the lens carrier 102 along the second direction Y. This arrangement of the second magnetic element and the second elastic element will not increase the space occupied along the optical axis.

[0100] It is understood that, in this embodiment of the present disclosure, by providing different magnetic components on the third side and the second side respectively, it is possible to better realize the movement of the lens carrier in different directions perpendicular to the optical axis.

[0101] In some embodiments, such as Figures 1 to 4As shown, the lens bracket 103 has a first movable groove 108 arranged along the optical axis direction Z; the base 101 has a second movable groove 109 arranged along the optical axis direction Z.

[0102] The movable component 104 is located within the space enclosed by the first movable slot 108 and the second movable slot 109.

[0103] In this embodiment of the disclosure, both the first movable groove and the second movable groove can be elongated grooves arranged along the optical axis.

[0104] It should be noted that the first movable groove can be formed by a recess in the lens bracket, and the second movable groove can be formed by a recess in the third side wall of the base. The recess direction of the first movable groove is opposite to the recess direction of the second movable groove.

[0105] In this embodiment, a protrusion along the optical axis can be formed on the third sidewall of the base, and the second movable groove is recessed on the protrusion. This allows for a better fit between the first and second movable grooves.

[0106] It should be noted that the first movable groove and the second movable groove can form a complete movable limiting groove, so that the movable part can move along the optical axis direction, but cannot move in other directions other than the optical axis direction.

[0107] Here, the first movable groove can be half of a complete movable limiting groove, and the second movable groove can be the other half of a complete movable limiting groove. For example, the first movable groove is formed by two intersecting groove walls, and the second movable groove is formed by two intersecting groove walls. The first and second movable grooves constitute a complete square groove to restrict the movement of the movable part along the optical axis.

[0108] Of course, in addition to forming a complete square groove, the first movable groove and the second movable groove can also form grooves of other shapes, such as circular grooves, etc. This disclosure does not limit this.

[0109] It is understood that in the embodiments of this disclosure, the first movable groove and the second movable groove arranged along the optical axis can form a movable limit, so that the movable part can move along the optical axis but cannot move in other directions other than the optical axis.

[0110] In some embodiments, such as Figures 1 to 4 As shown, the lens bracket 103 is provided with a third magnetic element 110 at a position different from the first movable groove 108. The third magnetic element 110 is used to drive the lens bracket 103 to move the lens carrier 102 along the optical axis direction Z.

[0111] In this embodiment of the present disclosure, the third magnetic element provides a driving force along the optical axis for the lens carrier.

[0112] It should be noted that the third magnetic component can be located at the center of the lens bracket or near the edge of the lens bracket, and this embodiment does not limit this.

[0113] In this embodiment, a third magnetic element is provided on the lens bracket, which can drive the lens bracket to move relative to the base along the optical axis. Since the lens bracket is connected to the lens carrier via an elastic element, and the elastic element has high rigidity and is not easily deformed along the optical axis, the lens carrier will also move along the optical axis when the lens bracket moves. Thus, the third magnetic element can drive the lens bracket to move the lens carrier along the optical axis.

[0114] It is understood that, in this embodiment of the present disclosure, by providing a third magnetic component on the lens holder, the movement of the lens carrier along the optical axis can be better achieved.

[0115] In some embodiments, such as Figures 1 to 4 As shown, the base 101 is provided with a fourth magnetic element 111, which is also used to generate a magnetic attraction with the third magnetic element 110, so that the lens bracket 103 can be attached to the base 101 when it moves along the optical axis direction Z.

[0116] In this embodiment, the lens bracket is disposed between the third side wall of the base and the first elastic member, and the fourth magnetic member can be disposed on the third side wall of the base, so that the fourth magnetic member and the third magnetic member can better generate magnetic attraction.

[0117] It should be noted that the fourth magnetic component can be understood as a magnetic sheet or magnetic block. The fourth magnetic component can be disposed on the third side wall of the base along the optical axis direction, or it can be disposed on the third side wall of the base along the first direction.

[0118] It is understood that, in this embodiment of the present disclosure, by setting the fourth magnetic element and the third magnetic element to generate a magnetic attraction, the lens bracket can move along the optical axis while also being attached to the base.

[0119] In some embodiments, such as Figures 1 to 4 As shown, the lens bracket 103 has two first movable slots 108; the third magnetic component 110 is located between the two first movable slots 108.

[0120] In this embodiment of the present disclosure, the lens bracket is provided with two first movable slots, which can be disposed on both sides of the lens bracket along the second direction, so that the lens bracket can move more stably along the optical axis direction.

[0121] It should be noted that the two first movable slots can be movable slots of the same size and shape, or movable slots of different sizes or shapes.

[0122] In this embodiment of the disclosure, when two first movable slots are provided, two second movable slots are also provided, and one second movable slot is aligned with one first movable slot to form a complete movable limiting slot, thereby forming two complete movable limiting slots. At this time, movable components can be provided in the two complete movable limiting slots respectively, so that the lens bracket can move more stably along the optical axis direction.

[0123] It should be noted that the two second movable slots can be movable slots of the same size and shape, or movable slots of different sizes or shapes.

[0124] Here, when the moving part is a ball bearing, each moving limit groove can be equipped with multiple balls along the optical axis.

[0125] It is understood that, in this embodiment of the present disclosure, by setting the third magnetic element between the two first movable slots, it is possible to achieve better magnetic fixation while enabling the lens bracket to move more stably along the optical axis.

[0126] In some embodiments, such as Figures 1 to 4 As shown, the lens actuator includes:

[0127] A flexible circuit board 112 surrounds a first sidewall 101A, a second sidewall 101B, and a third sidewall 101C of the base 101; the second sidewall 101B is connected to the first sidewall 101A and the third sidewall 101C.

[0128] The first coil 113 is disposed in the opening of the first side wall 101A and is disposed on the same side of the base 101 as the first magnetic element 106 of the lens actuator.

[0129] The second coil 114 is disposed in the opening of the second side wall 101B, and is disposed on the same side of the base 101 as the second magnetic element 107 of the lens actuator.

[0130] The third coil 115 is disposed in the opening of the third sidewall 101C, and is disposed on the same side of the base 101 as the third magnetic component 110 of the lens actuator.

[0131] In this embodiment, the flexible circuit board surrounds three side walls of the base. That is, the flexible circuit board is a bent circuit board.

[0132] The first sidewall and the third sidewall are two sidewalls arranged opposite to each other, and the second sidewall is an adjacent sidewall connecting the first sidewall and the third sidewall.

[0133] The first coil is disposed in an opening in the first sidewall and is disposed on the same side of the base as the first magnetic component. In this way, the first coil and the first magnetic component can interact more effectively to provide driving force to the lens carrier so as to drive the lens carrier to move in the first direction.

[0134] The second coil is disposed in the opening in the second sidewall and is disposed on the same side of the base as the second magnetic component. In this way, the second coil and the second magnetic component can interact more effectively, thereby providing driving force to the lens carrier to drive the lens carrier to move in the second direction.

[0135] The third coil is disposed in the opening on the third sidewall and is located on the same side of the base as the third magnetic component. In this way, the third coil and the third magnetic component can interact more effectively, thereby providing driving force to the lens carrier to drive the lens carrier to move along the optical axis.

[0136] It is understood that, in this embodiment of the present disclosure, by setting three coils to interact with three magnetic components respectively, it is possible to better drive the lens carrier to move in three different directions.

[0137] This disclosure also proposes a camera module that includes the lens actuator described in one or more of the above embodiments.

[0138] In this embodiment of the present disclosure, the camera module further includes a lens disposed on a lens carrier in the lens actuator; the camera module may also include an image sensor disposed at the bottom of the base in the lens actuator to collect light passing through the lens.

[0139] It is understood that in the embodiments of this disclosure, the camera module includes a lens actuator of one or more of the above embodiments. The movement of the lens carrier can be realized by setting a movable part and an elastic part, which can simplify the structure of the lens actuator. Furthermore, in the embodiments of this disclosure, the elastic part is sleeved on at least part of the lens carrier and is not stacked along the optical axis, which can reduce the space occupied by the lens actuator along the optical axis.

[0140] This disclosure also proposes an electronic device comprising: a lens actuator as described in one or more of the above embodiments, or a camera module as described in one or more of the above embodiments.

[0141] It is understood that in the embodiments of this disclosure, the electronic device includes the lens actuator of one or more of the above embodiments. The movement of the lens carrier can be realized by setting the movable part and the elastic part, which can simplify the structure of the lens actuator. Furthermore, in the embodiments of this disclosure, the elastic part is sleeved on at least part of the lens carrier and is not stacked along the optical axis, which can reduce the space occupied by the lens actuator along the optical axis.

[0142] Figure 5 This is a structural block diagram of an electronic device according to an exemplary embodiment. For example, the electronic device may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0143] Reference Figure 5 The electronic device may include one or more of the following components: processing component 502, memory 504, power supply component 506, multimedia component 508, audio component 510, input / output (I / O) interface 512, sensor component 514, and communication component 516.

[0144] Processing component 502 typically controls the overall operation of an electronic device, such as operations associated with at least one of display, telephone call, data communication, camera operation, and recording operation. Processing component 502 may include one or more processors 520 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 502 may include one or more modules to facilitate interaction between processing component 502 and other components. For example, processing component 502 may include a multimedia module to facilitate interaction between multimedia component 508 and processing component 502.

[0145] Memory 504 is configured to store various types of data to support operation on the electronic device. Examples of such data include at least one of the following: instructions for any application or method used to operate on the electronic device, contact data, phonebook data, messages, pictures, and videos. Memory 504 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0146] Power supply component 506 provides power to various components of an electronic device. Power supply component 506 may include at least one of the following: a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the electronic device.

[0147] Multimedia component 508 includes a screen that provides an output interface between the electronic device and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a Touch Panel, the screen may be implemented as a touchscreen to receive input signals from the user. The Touch Panel includes one or more touch sensors to sense touches, swipes, and gestures on the Touch Panel. The touch sensors may sense not only the boundaries of touch or swipe actions but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 508 includes a front-facing camera and / or a rear-facing camera. When the electronic device is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0148] Audio component 510 is configured to output and / or input audio signals. For example, audio component 510 includes a microphone (MIC) configured to receive external audio signals when the electronic device is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 504 or transmitted via communication component 516. In some embodiments, audio component 510 also includes a speaker for outputting audio signals.

[0149] I / O interface 512 provides an interface between processing component 502 and peripheral interface modules, such as keyboards, click wheels, and buttons. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0150] Sensor assembly 514 includes one or more sensors for providing state assessments of various aspects of the electronic device. For example, sensor assembly 514 may detect the on / off state of the electronic device, the relative positioning of components such as the display and keypad of the electronic device, changes in the position of the electronic device or a component within the electronic device, the presence or absence of user contact with the electronic device, the orientation or acceleration / deceleration of the electronic device, and temperature changes of the electronic device. Sensor assembly 514 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 514 may also include an optical sensor, such as a complementary metal-oxide-semiconductor (CMOS) or charge-coupled device (CCD) image sensor, for use in imaging applications. In some embodiments, sensor assembly 514 may also include, but is not limited to, at least one of the following: an accelerometer, a gyroscope, a magnetometer, a pressure sensor, and a temperature sensor.

[0151] Communication component 516 is configured to facilitate wired or wireless communication between electronic devices and other devices. The electronic devices can access wireless networks based on communication standards, such as Wi-Fi, 4G, 5G, or combinations thereof. In one exemplary embodiment, communication component 516 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 516 also includes a Near Field Communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wide Band (UWB), Bluetooth (BT), and other technologies.

[0152] In an exemplary embodiment, the electronic device may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components.

[0153] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 504 including executable instructions or a computer program that can be executed by a processor 520 of an electronic device. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), a compact disc read-only memory (CD-ROM), magnetic tape, floppy disk, and optical data storage device, etc.

[0154] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the claims.

[0155] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A lens actuator, characterized in that, include: Base; A lens carrier is disposed within the space enclosed by the base, and the central opening of the lens carrier is aligned with the central opening of the base; A lens bracket is disposed between the base and the lens carrier; A movable component is connected between the lens bracket and the base, and the lens bracket is used to drive the lens carrier to move along the optical axis. An elastic element is connected between the lens bracket and the lens carrier, and is sleeved on at least a portion of the lens carrier, the lens carrier being movable relative to the lens bracket in different directions perpendicular to the optical axis.

2. The lens actuator according to claim 1, characterized in that, The elastic element includes: a first elastic element and a second elastic element that are intersecting and arranged in a cross-shaped manner; The first elastic element is connected to the first side of the lens bracket and the lens carrier; The second elastic element is connected to the second side of the lens carrier, and the second side and the first side are adjacent two sides of the lens carrier.

3. The lens actuator according to claim 2, characterized in that, The first elastic element and the lens bracket are both disposed between the base and the lens carrier in a direction perpendicular to the optical axis.

4. The lens actuator according to claim 2, characterized in that, The lens carrier has a third side disposed opposite to the first side and a fourth side disposed opposite to the second side; A first magnetic element is provided on the third side; a second magnetic element is provided on the fourth side; The first magnetic component and the second magnetic component are used to drive the lens carrier to move in different directions perpendicular to the optical axis.

5. The lens actuator according to any one of claims 1 to 4, characterized in that, The lens bracket has a first movable groove arranged along the optical axis; the base has a second movable groove arranged along the optical axis. The movable component is located within the space enclosed by the first movable slot and the second movable slot.

6. The lens actuator according to claim 5, characterized in that, The lens bracket is provided with a third magnetic element at a position different from the first movable slot. The third magnetic element is used to drive the lens bracket to move the lens carrier along the optical axis.

7. The lens actuator according to claim 6, characterized in that, The base is provided with a fourth magnetic component, which is also used to generate a magnetic attraction with the third magnetic component, so that the lens bracket can be attached to the base when it moves along the optical axis.

8. The lens actuator according to claim 6, characterized in that, The lens bracket has two first movable slots; the third magnetic component is located between the two first movable slots.

9. The lens actuator according to any one of claims 1 to 4, characterized in that, The lens actuator includes: A flexible circuit board surrounds a first sidewall, a second sidewall, and a third sidewall of the base; the second sidewall is connected to the first sidewall and the third sidewall. The first coil is disposed in the opening of the first sidewall and is disposed on the same side of the base as the first magnetic component of the lens actuator; The second coil is disposed in the opening of the second side wall and is disposed on the same side of the base as the second magnetic component of the lens actuator; The third coil is disposed in the opening of the third sidewall and is disposed on the same side of the base as the third magnetic component of the lens actuator.

10. The lens actuator according to any one of claims 1 to 4, characterized in that, The moving parts include sliding parts or rolling parts.

11. A camera module, characterized in that, Includes the lens actuator as described in any one of claims 1 to 10.

12. An electronic device, characterized in that, Includes the lens actuator as described in any one of claims 1 to 10 or the camera module as described in claim 11.

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